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How to Purchase, Clean and Optimize Use of your Dish Rack
Описание: How to Purchase, Clean and Optimize Use of your Dish Rack A dish rack is one of the best apparatus for organizing the kitchen countertop to help make cooking and cleaning a simple task. Using dish racks will add order and room in the kitchen while creating a warm and inviting feeling in the room. The design of these racks lets you enjoy good perks when it comes to serving. It lets people dry utensils before placing them in the cabinets, thus saves on the time you would otherwise spend clothe drying your utensils one after the other. To get the best rack for your kitchen, you should spend some time shopping and read about the different types of kitchen tableware racks, user and purchasing guides and other available online resources on the best dish racks. With racks, drying the dishes is a fast and simple process. You will easily be able to organize your recently cleaned cups, glasses or plates. This will get rid of the need of wiping the countertop clean with dishes you’ve just washed dripping water. There are lots of options for dish racks, so you will be spoilt for choice though selecting one to suit your needs may be an issue due to the great variety of options. They are available in different materials like metal, stainless steel, and plastic. If you like an eco-friendly rack, get environmentally friendly wooden materials like bamboo. In spite of the different materials, it’s important to make sure they are strong enough. There is an array available in the market that you can select. Dish rack purchasing guides It is a difficult task to get the best dish rack due to the various options available in the market. Here are some factors to consider before you purchase a dish rack. Easy cleanup When water stagnates on your dish rack, hazardous fungus and bacteria might emerge and thrive. So, cleaning up the rack or kitchen holder frequently is also important. Fortunately, most racks now come with removable parts, so you will easily disassemble it for clean up. Typically, you just require water and mild soap as the dish rack’s material is usually wood, plastic or stainless steel. Material There are two popular kinds of dish rack material: wood and stainless steel. Plastic dish racks are also gaining popularity. You’ll find other kinds like satin, nylon, plastic. Wood and steel construction is much more durable and lasts for long. Some products created from plastic look very stylish, are very well-built and will offer great service. Size and shape There are different dish rack sizes and forms to decide on. These racks with stainless steel hook can be round, rectangular or square, or even small or large. You should look at the available space on the counter to select the best one. If you have limited space for a rack, do not worry. Some racks are extendable and foldable. Others can straddle over your sink thus saving you counter space. It’s easy to adjust to your preferred size. And keep in mind to select the rack with cutlery boxes and slots to hang mugs and hold forks, knives and spoons in a separate area. Outside/inside the sink Some homeowners would prefer placing the dish rack as kitchen tool outside the kitchen sink (on the countertop). You might worry that if you leave the drainer on the counter, it will be full of water. Most products now feature smart designs that let water flow into the sink automatically. This is useful in preventing the growth of mold and mildew and the musty smells that come with them. Conversely, if you would like to place the drainer on the sink, you need to select the product with the appropriate size that will fit the size of your sink. Frequency of use If you do not regularly cook and do not have lots of kitchen utensils, you don’t have to choose a large capacity dish rack. You need to get one that’s perfect for small homes. Conversely, if there are lots of people in the household and you’ve got lots of items that need drying, choosing the big size rack is important. Why you need a dish rack / common uses of dish racks Here are 5 great ways of using a dish rack to organize the kitchen Works like a basket When thinking of a basic wire dish drainer, it is essentially a basket. You can use it for holding up kitchen linens or snacks on a pantry shelf, which might otherwise simply topple and make a mess. This means that you can apply the dish rack to more than one use or once you retire it from being a dish rack, or a glass and wine rack, you can then use it for holding other items in your pantry. Weighing down containers during a dishwasher cycle During a dishwasher cycle, lightweight, plastic storage containers often become moved around, and when you open the door, you find at least one with its right side up and filled with water. You can solve this issue by using an old dish rack for weighing the pieces down. Organizing all the storage container lids It can be frustrating to organize storage container lids just as kiddie plates. They all come in different sizes and do not nest together. Organize them in a dish rack and you will not have to risk having them fall over and creating a mess when you take hold of one. Setting up command control If you prefer using the kitchen as the office for home management or work, you most likely have some supplies and files that require organizing. A dish drainer will be helpful here, in holding your files upright and offering an area for scissors, pens and more. Getting children dishes under control It is very hard to store children’s dishware. All the plastic containers and kiddie shaped dishes are good for getting your little one interested to eat; however, they do not stack properly and always collapse all over the place. You can place the dish rack inside the cabinet and make use of the vertical slots for filing plates, and the tines for keeping cups and bottles in place. Drying your fruits and veggies Dish racks can also come in handy in draining water off your cleaned fruits and vegetables. This saves you the trouble of having to dry them with a clothe before storing them away. If you are thinking of upgrading your dish rack, you can consider using your old dish rack as a fruit and vegetable holder on a permanent basis. How to arrange your dish rack It appears that dish racks will do more in the kitchen than simply holding your wet cookware. When being used for this purpose, you will position it on the counter top next to your sink or over the sink if the rack is designed as an over the counter dish rack. You can also position a dish drainer inside one of the kitchen drawers or cabinets. This will help in organizing all the lids to the cookware in one area, or to properly store your plates and saucers. How to use a dish rack to organize your home If you regularly feel like the kitchen sink is accumulating dishes you do not want to clean, a rack will help you feel you’ve got more room for getting your dishes done. A dish rack will also help organize your home as it is the best area for storing your dishes to dry. For this reason, you will not have to spend your valuable time drying them before putting them away. How to clean a dish rack After washing dishes with your hand, you want to make sure you’re putting them on a clean rack to dry. Because of all the water draining from your dishes onto the rack, these racks are the best mildew and mold breeding ground. Cleaning your dish rack each week will help in preventing it from forming and harboring mold and mildew. In case it forms, makes sure you sanitize the dish drainer and kill all mildew and mold and allow it to dry, preferably outside where it can air properly. Cleaning up a dish rack is just like cleaning up a dish. There are 4 simple steps. What you will require: Dismantle the dish rack, like a bathroom holder if you can, for easier cleanup. Disassembling it will ensure you reach all those hard to reach areas. Step two: Scrub Over the sink, use hot water to wet the toothbrush or scrub brush. After that, add a dab of dish soap, and get rid of the stains by gentle scrubbing. Ensure to scrub the whole rack thoroughly along with focusing on the stains and the hidden corners. Step Three: Rinse Ensure that you rinse off all the soapy water and check the rack for spots you might have missed. Step four: Allow drying entirely If you have a metal dish rack, use an absorbent rag or cloth to dry it off manually to help in preventing rust. You can leave racks of other materials to dry in your sink. The right of way of preventing rust, mold and mildew from forming on the rack is cleaning it up frequently. You should always ensure it’s dried entirely after use. Cleaning up the dish drainer once weekly can ensure that the growth of bacteria and mold is kept at a minimum and helps keep the dish rack looking brand new. Oxidation forms when metal gets exposed to water, so the faster you can dry the rack off, the less likely it is to rust. In addition, it is important that you take care when you handle sharp items around a vinyl-coated or metal rack. The reason being, scratches will probably harbor water and cause rusting. If the dish rack has tiny rust spots, you can dry the place and use electrical tape to wrap it to prevent the spread of rust. If the joint has rust or has started corroding the metal, it might be time to get a new one. Additional ideas and tips Is the rack occupying too much counter space? If you have a cabinet over the kitchen sink, you can cut out its bottom and install the rack inside. Your dishes will drip into the kitchen sink and you will get more counter space. If there’s no tray on your dish rack, place a cookie sheet under it for catching drips. This sheet will dry a lot quicker than a towel and help in preventing mildew. When you need to replace the rack, think about using it in a cabinet for organizing cookware, serving trays, or other things that you can rack rather than stacking. If excess water remains in the tray after drying the dishes, put them away and then towel dry or dump out the dish tray to prevent mildew. If you like placing a towel under the dish rack, you should replace it every day at least to prevent the growth of mold. It’s good to hang it after every use to allow it to dry totally.
Дата Публикации: 05-11-21
Different Types Of Industrial Printing Machines
Описание: Different Types Of Industrial Printing Machines In the industrial set up of the economy, the printing machines are growing in large numbers. Different printing techniques and processes are used by every industry for effective communication. Any machine used in printing ink on the substrate (printing medium) which can be cloth, paper or plastic, is referred to as the printing machinery. By applying pressure to the substrate, the printing machinery transfers the ink on the printing medium resting on an inked platform composed of movable type. The development of industrial printing machines changed a lot of things in the world. It would make transfer and preservation of historical records, scientific findings, and knowledge easy and possible. There's a great advancement in the printing machinery introduced in the market today given the improvement in science and technology. There's a competition in the industry, as many companies are now making printing press. As every company is introducing better features and making an effort to overcome the other competitors, this has led to the introduction of many enhanced features in printing machinery. With the introduction of various features in these types of machinery, printing is now easier to be done than it was in earlier days. Today, printing machinery is available in many sizes to suit different needs. Bigger sizes of printing machinery are available for heavy-duty printing or big-time printing businesses. You can get small and medium sizes too for small and medium printing businesses. The machinery size determines the volume of printing that will be done in a day, to a greater extent. When compared with small-sized printing machinery, the heavy industrial printing machines can print a lot of things per hour or regularly. There are different types of printing machines for printing on a different medium since different printing machines make use of different printing technology. Each of the below-mentioned printing machinery is meant to serve a particular purpose. You must consider your printing needs or the type of printing that you are doing before you want to buy or order for your printing machine. Several factors such as the size, the type of printing done, the seller, the brand, and others determine the cost. Types Of Printing Machines Digital Printers Ink-jet Printers Screen Printers Embossing Machines Flexographic Printing Machine Letterpress Printing Machines Offset Printers Laser printers Wireless Printers 3D Printers Thermographic Printers Electrostatic Printing Machine Pad Printers Rotogravure Printing Machines The digital printing machines have gained immense popularity for short to medium run jobs requiring high clarity, quality, and fine printing. A vibrant quality image is delivered with these types of printers. By providing cost-effective and fine printing solutions, these affordable and high-performance machines are revolutionizing the printing industry. Because of the on-demand services, digital printing equipment ensures fast turnaround time. Digital printers are ideally suited to publish a small print run of posters and books. They have many advantages over traditional methods. Understanding Metal Stamping Metal stamping is a cold-forming process that makes use of dies and stamping presses with rewinding machine to transform sheet metal into different shapes. Pieces of flat sheet metal, typically referred to as blanks, is fed into a sheet metal stamping press that uses a tool and die surface to form the metal into a new shape. Production facilities and metal fabricators offering stamping services will place the material to be stamped between die sections, where the use of pressure will shape and shear the material into the desired final shape for the product or component. This article describes the metal stamping process and steps, presents the types of stamping presses typically employed, looks at the advantages of stamping compared to other fabrication processes, and explains the different types of stamping operations and their applications. Basic Concepts of Metal Stamping Machine Metal stamping, also referred to as pressing, is a low-cost high-speed manufacturing process that can produce a high volume of identical metal components. Stamping operations with slitting machine are suitable for both short or long production runs, and be conducted with other metal forming operations, and may consist of one or more of a series of more specific processes or techniques, such as: Punching Blanking Embossing Coining Bending Flanging Punching and blanking refer to the use of a die to cut the material into specific forms. In punching operations, a scrap piece of material is removed as the punch enters the die, effectively leaving a hole in the workpiece. Blanking, on the other hand, removes a workpiece from the primary material, making that removed component the desired workpiece or blank. Embossing is a process for creating either a raised or recessed design in sheet metal, by pressing the raw blank against a die that contains the desired shape, or by passing the material blank through a roller die. Coining is a bending technique wherein the workpiece is stamped while placed between a die and the punch or press. This action causes the punch tip to penetrate the metal and results in accurate, repeatable bends. The deep penetration also relieves internal stresses in the metal workpiece, resulting in no spring back effects. Bending refers to the general technique of forming metal into desired shapes such as L, U, or V-shaped profiles. The bending process for metal results in a plastic deformation which stresses above the yield point but below the tensile strength. Bending typically occurs around a single axis. Flanging is a process of introducing a flare or flange onto a metal workpiece through the use of dies, presses, or specialized flanging machinery. Metal hot stamping machines may do more than just stamping; they can cast, punch, cut and shape metal sheets. Machines can be programmed or computer numerically controlled (CNC) to offer high precision and repeatability for each stamped piece. Electrical discharge machining (EDM) and computer-aided design (CAD) programs ensure accuracy. Various tooling machines for the dies used in the stampings are available. Progressive, forming, compound, and carbide tooling perform specific stamping needs. Progressive dies can be used to create multiple pieces on a single piece simultaneously.
Дата Публикации: 05-11-21
Falling Film Evaporator Principle
Описание: Falling Film Evaporator Principle What Makes a Good Extraction Machine The popularity of products created by cannabis extract has exploded over the past 18 months. And experts expect this growth to increase during 2021. This is terrific news for companies manufacturing these products, businesses making extraction machinery, cannabis retailers, and of course, consumers. But for those tasked with producing all the extract required to create edibles, tinctures, vacuum concentrator, and other products, the effort to meet this increased demand brings a fair amount of anxiety. Many companies will increase capacity by purchasing expensive additional extraction machinery. Due to recent innovations in equipment and methodology, extract manufacturers are increasingly turning to supercritical CO? extraction. But a lack of technical expertise and limited knowledge of CO? can inhibit a company's ability to select the right system to use this powerful solvent to its best advantage. It is a scenario that some extraction machine sellers leverage by making unfounded claims, relying on misinformation, and employing questionable high-pressure tactics to secure sales. But as the old maxim dictates: Knowledge is power. So here's a quick rundown of the essential capabilities any high-quality supercritical CO? extraction machine must have and why these capabilities are so critical. Technical versatility Supercritical CO? extraction has been used for many years by various industries: essential oils like lavender and frankincense, coffee, perfumes, and even beer. Today, it is one of the leading technologies for industrial cannabis oil production. There is one primary reason: Supercritical CO? extraction provides results unattainable by other solvents, creating a consistent, potent product through a process that is by far the cleanest for the consumer and safest for the producer and environment while keeping long-term operational costs low. Supercritical CO? extraction enables skilled operators to develop innovative methodologies which maximize extraction efficiency, boost throughput and expand product options. But machines lacking the temperature and pressure ranges or the system stability needed to leverage the unique qualities of CO? miss an opportunity to deliver operators competitive advantages. A high-quality, instrumentation-grade CBD oil extraction machine will provide features like density feedback and control, inline fractionation, and software scripting and sequencing that enhance productivity and deliver robust R&D capacity that is key for new product development. The best machines even bring major downstream refinement processes onboard during extraction to exponentially increase production efficiency. Reliability Nothing kills cost-effectiveness and ROI like downtime and repairs. It is way too familiar in the extraction industry for machines to break down due to things like pump failure. Many leading manufacturers have not invested in the engineering to design their pumps and instead use third-party, off-the-shelf solutions that work great for other industries but are not ideal for pumping liquid CO?. Inadequate pump performance also directly affects extraction efficiency, which, again, hurts ROI. Control over critical variables Its finely controlled operation defines a true scientific instrument. When it comes to supercritical CO? as an extraction solvent, any capable system must provide precise and independent control over pressure, flow rate, and temperature to target the specific compounds desired. Because this targeting, or "tunability," is the core benefit of using CO? extraction in the first place, control over these variables is a bare minimum requirement for positive product outcomes. A machine that does not provide this level of control through automation that guarantees repeatable conditions for every batch extracted dramatically reduces the chance of business success for any CO? extraction lab. Precise and stable extraction A quality CO? herb extraction machine will monitor and manage ongoing conditions throughout a run to sense conditions and make second-by-second adjustments necessary to ensure a quality outcome. When conditions fluctuate, or a human must babysit the extraction, accuracy, and consistency of performance diminish. Ultimately business profit margins suffer. Extraction machines that do not provide this precision and stability when running a batch — and many of the leading brands do not — make it impossible to understand exactly what's happening during extraction. The lack of precision eliminates the ability to repeat successful extractions, avoid failed extractions, and prevent compounds' loss. There is virtually no way to create effective standard operating procedures or properly plan the business. Simplicity A great CO? extraction machine is useless if no one understands how to use it to its fullest capacity. As more businesses decide to switch to supercritical CO? extraction, operators' expertise becomes a key concern. Smaller operations may not possess the technical savvy to develop high-performing methodologies with an advanced system effectively, and many machines sadly aren't designed with simplicity in mind. The best, most desirable machines will allow technicians to manipulate variables while also being simple enough to be operated by mechanically-curious personnel interested in learning how to produce consistent, high-quality oils. As expected with any technology, there is no "one-size-fits-all" answer to what makes a great supercritical CO? extraction machine. And that is what makes the criteria mentioned above even more important. The reliable machine allows the most versatility and enables the most precise control to adapt as the market evolves--and can ultimately help grow the business. The right machine becomes a key strategic advantage in the fast-changing and rapidly expanding market for cannabis-infused products. Falling Film Evaporator Principle The falling film evaporator has two main configurations, which includes the horizontal and the vertical tube,The horizontal tube is the most common design used in the desalination industry. The vertical tube falling film function describes are under The liquid is introduced at the top part of the vertical tubes, where it form a falling film on the inside surface of the tubes. The heating steam flows on the outside surface of the tubes, where it condenses and releases its latent heat to the falling film. The heat exchange process result in steam condensation and evaporate ion of the liquid on the tube side. Design and operation of the vertical tube configuration is more complex than the horizontal. The draw backs of Falling Film Evaporator, including single effect falling film evaporator and multiple effects falling film evaporator. The falling film may collapse during its down pass and result in partial wetting of the surface. This result in dry patches or areas covered with very small amount of liquid. As a result,complete evaporation of the liquid, which would leave salt scaling on the tube surface. Also, formation of dry patches would result in increase in the surface temperature of the tube. This would result in increase of the thermal stresses as a result increase in the tube expansion in the hot spots. Ultimately, the tube operation life is reduced because of bucking, scaling, and increase in corrosion rates.
Дата Публикации: 05-11-21
What's the Difference Between Bearings?
Описание: What's the Difference Between Bearings? Bearings are used to help reduce friction. Metal-upon-metal contact produces large amounts of friction. The friction adds to wear and tear of the metal, producing grinding that slowly degrades the metal. Bearings reduce friction by having the two surfaces roll over each other, reducing the amount of friction produced. They consist of a smooth metal ball or roller that rolls against a smooth inner and outer metal surface. The rollers or balls take the load, allowing the device to spin. The load acted upon a bearing is either a radial or thrust load. Depending on the location of the bearing in the mechanism, it can see all of a radial or thrust load or a combination of both. For example, the bearing in the wheel of your car supports a radial and a thrust load. The weight of the car on the bearing produces a radial load while the thrust load is produced as the car turns a corner. Here we will examine some types of common bearings. Ball bearings are most common type of bearing and can handle both radial and thrust loads. Ball bearings are also known as deep-groove single-row or Conrad bearings. The inner ring is typically fastened to the rotating shaft and the groove on the outer diameter provides a circular ball raceway. The outer ring is mounted onto the bearing housing. The ball bearings are housed in a race and when the load is applied, it is transmitted from the outer race to the ball and from the ball to the inner race. The raceway grooves have typical curvature radii of 51.5% to 53% of the ball diameter. Smaller curvature raceways can cause high rolling friction due to the tight conformity of the balls and raceways. Higher curvature raceways can shorten fatigue life from increased stress in the smaller ball-race contract area. 1. Ball bearings, also known as Conrad bearings, are typically used in small load applications. The contact points between the ball and the outer race is very small due to the spherical shape of the bearing. This also helps the ball spin very smoothly. Since the contact point is so small, the flanged bearing can become overloaded at a specific point causing the ball bearing to become deformed. This will ruin the bearing. Ball bearings are typically used in applications where the load is relatively small. 2. The table above lists some general types of ball bearings and their typical load capabilities. Straight Roller Bearings Straight roller or cylindrical bearings run in cylindrical raceways and have low-friction, high-radial load capacity, and high speed capability. Roller bearings are cylinder-shaped stainless bearings where the point of contact between the bearing and the race is a line rather than a point. Load is distributed over a larger area and allows the bearing to handle a greater load. To minimize its tendency to skew, the roller’s length is not much greater than the diameter of the roller. 3. Straight or cylindrical roller bearings can be found in applications like conveyor-belt rollers, which are required to hold heavy radial loads. Their usual design is free to float axially, and they have roller-guiding flanges on both sides of one ring and none on the other side. This allows for the bearing to expand due to thermal activity when used in combination with a ball miniature bearing’s fixed location at the opposite end. A thrust load can be supported in one direction if a guiding flange is added on one of the opposing rings’ side. A second flange can be added for two-directional thrust capacity. Tapered Roller Bearings 4. Tapered roller bearings are designed to withstand a radial and thrust load, and can be found in car hubs due to the amount of radial and thrust loads they can carry. In a tapered roller bearing, the rings and the rollers are tapered in the shape of truncated cones to simultaneously support axial and radial loads. The ratio of the loads depends on the angle of the axes between the roller and bearing. The greater the angle is the greater axial load can be supported. The contact angle for most tapered roller bearings range is between 10 to 16 degrees. For higher thrust-load capacity, a 30-degree contact angle is used. 5. Tapered bearings are mounted pairs since they handle radial loads better than a single row of tapered small size bearings. For heavy-duty applications, two or four rows of tapered rollers are combined in a single unit in large bearings. Spherical Roller Bearings Spherical roller bearings typically consist of two rows of barrel-shaped rollers running in two raceways. One is on the inner ring and the other is on a continuous spherical surface ground on the inner diameter of the outer ring. This allows the bearing to operate with some misalignment. Spherical rollers have barrel profiles that closely match the raceways profiles, hence making them robust and having a high load capacity. They are mounted in pairs inside the large size bearing housing and are faced in opposite directions. This is done so that the load can be supported in either direction. Needle Roller Bearings Needle roller bearings use elongated cylindrical rolling elements with small diameters. They are used in applications where radial space is limited. The diameter to length ratio for the needles varies between 1-to-2.5 and 1-to-10. Due to their small size, they cannot be guided accurately and generate high amounts of friction. They are used at low speeds and oscillating motions as a result. Cages may be used to help guide the needles and improve retention. Thrust Bearings Designed to handle high thrust loads, roller-thrust bearings are typically found in gearsets used for car transmissions between gears or between the housing and rotating shafts. The angled teeth found in helical gears used in car transmissions produce a high thrust load that is supported by the roller-thrust bearings. Roller-thrust bearings slide within a roller-race contact to handle the surface-speed variation that comes as a result of the varying diameter across the contact zone. 8. Ball-thrust bearings are designed to handle almost exclusively thrust loads in low-speed, low-weight applications. An example of its use would be in bar stools where they are used to support the seat. Ball-thrust bearings are comprised of two grooved plates with a set of balls between them. The ball-race contacts have a sliding action that is increased at high speeds by the centrifugal force on the balls. Cylindrical roller thrust middle size bearings are limited to about 20% of the speed of its radial bearing counterpart and ball-thrust bearings are limited to 30% of the speed of their counterpart.
Дата Публикации: 05-11-21
What are the advantages of Honing process
Описание: What are the advantages of Honing process What it honed tube? Honed tube is well known as hydraulic cylinder tube in many industries. This is because honed tubes are the most important materials of manufacturing hydraulic cylinders. And as this kind of tubing is usually honed in tube inside diameter, it is known as honed ID tubing also. The honed tubes are suitable for various kinds of Precision Mechanical Tube, Honed Cylinder Tubing and Hydraulic Cylinder, Construct use Multi Joint Tube, Steel Axis Pipe, Injection Machine and Robotic Arm. Honed tubes are the main materials for manufacturing and repairing hydraulic power unit cylinders and pneumatic cylinders with piston rod. Mostly the honed cylinder tubes are produced from “suitable to hone” cold drawn seamless tubes or DOM tubes, by Honing process or Skiving & Roller burnishing process. What is Honing Process? Tube honing process is mostly utilized to produce smoothly inside surface finishes, and to ensure accurate dimension tolerances on inside diameters. The honing process uses abrasive stones and paper to machine the inside diameter of the cold drawn seamless tubes, which “grinds” stock away to eliminate the surface defects from the cold drawing process; and to reach the required tolerances and surface roughness. And usually we should use cutting fluids to offer easy cutting action and also to clear away the cut material from the inside surface. What are the advantages of honing cylinder tubes? High processing accuracy of the inside diameters Good surface quality: the surface of honing is cross-grain, which is beneficial to the storage of lubricating oil and the maintenance of oil film. The honing speed is low (one tenth of the grinding speed), and the oil stone is in surface contact with the hole, so the average grinding pressure of each abrasive grain is small, so that while honing, the surface of the workpiece is almost without thermal damage and metamorphic layer, the deformation is small too. The honing machined surface has almost no sand and extruded hard layers. What is Skiving & Roller Burnishing process? The skived & roller burnishing process is a single pass operation that uses a cutting tool (skiving knives) on the forward path, to remove the stock to machine to the specified dimension, and then uses roller bearings on the reverse stroke, to burnish the inside surface to achieve the highest surface finish tolerances. What are the advantages of Skiving & Roller Burnishing cylinder tubes? The honed cylinder tubes which are processed by Skiving & Roller Burnishing have a surface residual compressive stress left on the surface layer, which contributes to the sealing of the surface micro crack and hinders the expansion of the erosion effect. Thereby, the surface corrosion resistance is improved, and the generation or expansion of the fatigue crack can be delayed, thereby improving the fatigue strength of the honed tube. Through Roller burnish forming, the rolling surface forms a cold hardening layer, which reduces the elastic and plastic deformation of the grinding contact surface, thereby improving the wear resistance of the inner wall of the honing pipe and avoiding burns caused by grinding. After rolling, the inside surface roughness value of honed tube is reduced, which can improve the tolerance fit property. After knowing the advantages of the honing process compared to Skiving & Roller burnishing process, people can easily determine which manufacturing process to use when they need to purchase the honed cylinder tubes. Skyline Precision Steel Pipe Manufacturing Co., Ltd is one of the leading hone tube manufacturers & suppliers in China, it can produce honing tubes with both of the above manufacturing processes. Honed Tube is produced by drawing stainless steel, chrome plated rod or aluminum tube over a mandrel or cold drawn seamless honed tube where the surface is stress relieved and annealed. we’re offering a wide collection of Hydraulic Honed Tube which we provide to the customers had been made the usage of a excessive nice of raw materials. these are provided at affordable charge. we’re a number of the prestigious producers and providers of pleasant nice Honed Tube. those tubes are exactly synthetic in compliance with the enterprise laid parameters the use of finest excellent steel that is received from actual carriers. appreciated for a continuing finish, corrosion resistance and hassle-free set up, these tubes locate their programs in earth shifting machinery and pneumatic & hydraulic cylinders.
Дата Публикации: 05-11-21
Solar water heaters
Описание: Solar water heaters Solar water heaters -- sometimes called solar domestic hot water systems -- can be a cost-effective way to generate hot water for your home. They can be used in any climate, and the fuel they use -- sunshine -- is free. How They Work Solar water heating systems include storage tanks and solar collectors. There are two types of solar water heating systems: active, which have circulating pumps and controls, and passive, which don't. Active Solar Water Heating Systems There are two types of active solar water heating systems: Direct circulation systems Pumps circulate household water through the collectors and into the home. They work well in climates where it rarely freezes. Indirect circulation systems Pumps circulate a non-freezing, heat-transfer fluid through the flat panel solar collectors and a heat exchanger. This heats the water that then flows into the home. They are popular in climates prone to freezing temperatures. Passive Solar Water Heating Systems Passive solar water heating systems are typically less expensive than active systems, but they're usually not as efficient. However, passive systems can be more reliable and may last longer. There are two basic types of passive systems: Integral collector-storage passive systems These consist of a storage tank covered with a transparent material to allow the sun to heat the water. Water from the tank then flows into the plumbing system. These work best in areas where temperatures rarely fall below freezing. They also work well in households with significant daytime and evening hot-water needs. Thermosyphon systems Water is heated in a collector on the roof and then flows through the plumbing system when a hot water faucet is opened. The majority of these systems have a 40 gallon capacity. Storage Tanks and Solar Collectors Most solar water heaters require a well-insulated storage tank. Solar storage tanks have an additional outlet and inlet connected to and from the collector. In two-tank systems, the solar collector water heater preheats water before it enters the conventional water heater. In one-tank systems, the back-up heater is combined with the solar storage in one tank. Three types of solar collectors are used for residential applications: Flat-plate collector Glazed flat-plate collectors are insulated, weatherproofed boxes that contain a dark absorber plate under one or more glass or plastic (polymer) covers. Unglazed flat-plate collectors -- typically used for solar pool heating -- have a dark absorber plate, made of metal or polymer, without a cover or enclosure. Integral collector-storage systems Also known as ICS or batch systems, they feature one or more black tanks or tubes in an insulated, glazed box. Cold water first passes through the solar collector, which preheats the water. The water then continues on to the conventional backup non pressure solar water heater, providing a reliable source of hot water. They should be installed only in mild-freeze climates because the outdoor pipes could freeze in severe, cold weather. Evacuated-tube solar collectors They feature parallel rows of transparent glass tubes. Each tube contains a glass outer tube and metal absorber tube attached to a fin. The fin's coating absorbs solar energy but inhibits radiative heat loss. These collectors are used more frequently for U.S. commercial applications. Solar water heating systems almost always require a backup system for cloudy days and times of increased demand. Conventional storage water heaters usually provide backup and may already be part of the solar system package. A backup system may also be part of the solar collector, such as rooftop tanks with thermosyphon systems. Since an integral-collector storage system already stores hot water in addition to collecting solar heat, it may be packaged with a tankless or demand-type water heater for backup. Selecting a Solar Water Heater Before you purchase and install a solar water heating system, you want to do the following: Estimate the cost and energy efficiency of a solar water heating system Evaluate your site's solar resource Determine the correct system size Investigate local codes, covenants, and regulations. Also understand the various components needed for solar water heating systems as solar air project, including the following: Heat exchangers for solar water heating systems Heat-transfer fluids for solar water heating systems Installing and Maintaining the System The proper installation of solar water heaters depends on many factors. These factors include solar resource, climate, local building code requirements, and safety issues; therefore, it's best to have a qualified solar thermal systems contractor install your system. After installation, properly maintaining your system will keep it running smoothly. Passive systems don't require much maintenance. For active systems, discuss the maintenance requirements with your system provider, and consult the system's owner's manual. Plumbing and other conventional water heating components require the same maintenance as conventional systems. Glazing may need to be cleaned in dry climates where rainwater doesn't provide a natural rinse. Regular maintenance on simple systems can be as infrequent as every 3–5 years, preferably by a pre heat solar water heater contractor. Systems with electrical components usually require a replacement part or two after 10 years. Learn more about solar water heating system maintenance and repair. When screening potential contractors for installation and/or maintenance, ask the following questions: Does your company have experience installing and maintaining solar water heating systems with solar accessory? Choose a company that has experience installing the type of system you want and servicing the applications you select. How many years of experience does your company have with solar heating installation and maintenance? The more experience the better. Request a list of past customers who can provide references. Is your company licensed or certified? Having a valid plumber's and/or solar contractor's license is required in some states. Contact your city and county for more information. Confirm licensing with your state's contractor licensing board. The licensing board can also tell you about any complaints against state-licensed contractors. Improving Energy Efficiency After your water heater is properly installed and maintained, try some additional energy-saving strategies to help lower your water heating bills, especially if you require a back-up system. Some energy-saving devices and systems are more cost-effective to install with the water heater. solar water heater, device that uses solar heat energy to produce hot water. A typical solar water heater consists of a solar collector mounted on the roof of a building and connected to a water-storage tank. Depending on the system, unheated water either can be circulated from the tank through the collector to be heated directly or can be heated by a high-capacity heat-exchange fluid that was warmed in the collector and transfers its heat through tubes in the water in the tank. While heat transfer from the solar collector to the unheated water can be facilitated passively without mechanical means, “active” solar hot water systems use electricity to circulate the heat-exchange fluid and to operate mechanical pumps and controllers. Although the practice of using the sun for heating water for domestic use can be traced back to several ancient cultures, it was not until 1891 that the first patented high pressure solar water heater system was sold commercially. Invented by Clarence Kemp in Baltimore, Maryland, the system was called the “Climax” and was popular in California and other warm American states. Given the comparatively high cost and inconvenience of using conventional fuels to heat water, many households were eager to invest in these solar hot water heaters. However, the Climax system was limited in that the heating element doubled as the storage tank, thus restricting the amount of hot water available. In 1909 William J. Bailey patented a system that separated the water-storage tank from the solar heating element, forming the basis of the design of solar hot water heaters used today.
Дата Публикации: 05-11-21
How Does a Fuel Level Sensor Work?
Описание: How Does a Fuel Level Sensor Work? Sensors are a crucial part of most vehicles, especially when determining the fuel level in automobiles and aircraft. Whilst running out of fuel might be inconvenient and costly when driving an automobile, in an aircraft it could have dire consequences. In this article, we look at how these fuel level sensors work. Fuel level sensors, also known as fuel gauges, allow drivers to monitor fuel consumption and help them to determine when to refill the tank. They consist of two main components: the sensing system itself (also known as the sender) and the indicator (also commonly referred to as the gauge). Fuel gauges work by measuring the voltage across a variable resistor within the sensing system, to determine the level of fuel; which is then relayed to the driver via the indicating system. Several components work within the sensing system, enabling it to detect how much fuel is in a tank, including the float switch, a variable resistor, and a wiper. The sensor system is relatively simple compared to other sensors currently produced, although newer sensor systems can also utilize microprocessors for faster and more accurate measurements. The sensing system is located in the fuel tank and consists of a float—usually made of foam and connected to an actuating metal rod—attached to a variable resistor. The variable resistors used in fuel levels sensors are often composed of a resistive material, where one end is attached to the ground, with a wiper (much like a very small windscreen wiper) that moves over the resistive material as the float moves. When the float moves due to changing fuel levels, the wiper moves across the resistor, causing a change in voltage. The orientation of the wiper means that the highest resistance is experienced across the resistor when the tank is empty. At this point, the wiper is also as far away as possible from the ground end of the resistor. The change in current is then passed on to the indicator which in turn changes the reading. However, fuel level sensors in automobiles can often be inaccurate, especially when driving with a full tank. In this scenario, the float will rise to the top of the tank, with the wiper returning to the ground end of the resistor, resulting in a small resistance and a high current passing through the sensor. As the float drops in height, the resistance changes; but the gauge will often remain on 'full' for some time. This is because when the fuel tank is full, the float cannot position itself on top of the fuel, as it is blocked by the tank or is limited by the reach of the actuating rod attached to it; meaning that the float becomes submerged when the tank is full. This leads to inaccurate readings until the fuel drops to a level where the float can sit on top, allowing the resistance to change. Similarly, when fuel is low, the rod often does not extend to the end of the tank, causing the gauge to indicate an empty tank when actually some fuel remains. Aircraft Fuel Level Sensors Some smaller aircraft use the same sensing mechanisms as automobiles in their fuel level sensors; however, in larger aircraft, a number of sensors are used to cover the increased size of the fuel tank. It is imperative for aircraft to avoid the inaccuracies present in some automotive fuel level sensors, as the stakes are much higher—loss of fuel could have catastrophic consequences. Additionally, sensors used in aircraft must be able to cope with changes in altitude; therefore, they are more sophisticated than automotive ultrasonic fuel level sensors. Aircraft typically rely on either ultrasonic or capacitance sensors. Ultrasonic sensors measure the height of the fuel in the tank by sending out ultrasonic signals, which are measured on the other side of the tank via another sensor. On the other hand, when capacitance sensors with driver fatigue monitor are used, the fuel passes through special vents when it consumed, causing the capacitance to change in the sensors, enabling the level of the fuel in the tank to be determined. This information is then passed on to the pilots via the onboard computing system. The level fleet management sensor in a vehicle’s fuel tank is actually a combination of three components; a float, an actuating rod and a resistor. This combination of components sends a variable signal to the fuel gauge or an electronic device -- a “little black box” -- that actuates the fuel gauge. The sensor assembly is often referred to as a sender. It is a relatively simple system once the function of each component part understood. Float The float can be visualized by thinking of the ballcock in a lavatory cistern. The buoyant float -- a sealed composite or metal ellipsoid, or a foam solid -- is typically oval rather than circular and rests on the surface of the fuel. It is attached to a pivoted actuating rod. Actuating Rod As the level of the gasoline or diesel in the tank changes, the float moves up and down with the fuel’s surface. It is attached to a thin metal actuating rod, one end of which moves with it. The rod is pivoted at some point along its length, then the opposite end is attached to a grounded variable resistor. Resistor 12-volt power is supplied to one end of the resistor from the vehicle’s battery. A wire from the resistor runs to the fuel gauge. In some vehicles, the wire runs directly to the gauge, and in others it runs to a stepper or an electronic device that interprets the signal and actuates a mechanical gauge or a digital readout. How It Works Inside the resistor, a device with personal tracker that resembles a tiny windshield wiper is moved over a strip of resistive material by the movement of the actuating rod. The farther along that strip from the grounded end of the resistant strip the wiper is, the less electricity is conducted to it by that material. The wiper is oriented so the most resistance is encountered when the tank is at its emptiest, and the least when the tank is full. The maximum signal -- the unmodified 12-volt current -- makes the needle in the fuel gauge swing over to “full.” As the fuel level decreases the float drops, the actuator rod causes the wiper to move across the resistant strip away from the ground, and less current is passed to the gauge. The needle shows a decreasing reading. When the tank is empty, the float is at its lowest and the wiper is at the far end of the resistant strip from the ground, so very little current is sent to the gauge. The needle doesn’t move far, thus reads “empty.” Inaccuracies Often a float will reach the fullest extent of its mechanical travel before the tank is entirely full or entirely empty. This explains why many cars have gauges that stay on “full” for a long time before starting to drop after a fill-up, and why some cars can run for many miles on what appears to be an empty tank.
Дата Публикации: 05-11-21
What Are The Different Types of File Cabinets?
Описание: What Are The Different Types of File Cabinets? When it comes to keeping your workspace organized, file cabinets can provide the much needed storage space for the files and papers that tend to pile up on your desk. File cabinets are made for a wide variety of uses and come in all kinds of sizes. Below we've laid out some of the most common file cabinets and what they're used for. File Cabinet Types Some of the most common file cabinets are: Lateral file cabinets Vertical file cabinets Mobile file cabinets Flat file storage cabinets Side tab filing systems Card file storage Below we've listed the different types of file drawers to help you make the selection that's best for you: Lateral File Cabinets Lateral file cabinets, commonly referred to as horizontal under desk file cabinets, provide a wide enough filing system that accommodate both letter and legal sized paperwork. If you're looking for something that holds both types of papers, then this is a great file cabinet option. Lateral files come in a wide variety of styles and colors and you can find them in wood, laminate, veneer and metal. Vertical File Cabinets Vertical file cabinets are a great way to store files without taking up too much floor space. These compact file storage options come in a wide variety of styles and materials as well, including wood veneer, laminate, metal and solid wood. Mobile File Cabinets Mobile file cabinets work great as under desk filing cabinets and can serve as portable file systems because of the convenient casters that allow you to easily transport from room to room. Flat File Storage Cabinets Flat file storage cabinets work as a perfect solution for those who have large documents like blueprints, artwork, drawings, or maps that need a place to be stored. Side Tab Filing Systems Side tab filing systems work as a great solution for medical facilities due to their sturdy construction and ability to house a large amount of documents. Side tab files come in a variety of styles, with or without a door. Card File Storage Card file storage cabinets work as a reliable filing solution for libraries and institutions that need a place to house index cards. These cabinets were built specifically for card catalogs and come in a variety of sizes. Pedestal File Cabinets Need something a little shorter that can fit in a cubicle or small office space? Then a pedestal file charging cabinet may be the solution you are looking for. These cabinets are made to fit underneath a desk, often sitting as part of an office cubicle set up. Different choices offer top drawers for office supplies with larger filing drawers underneath. Rolling File Cabinets Rolling file cabinets are similar to pedestal file cabinets, and glass top desk, as they are smaller in size and can fit underneath a desk, but these are on wheels. Files can easily be moved around the office or re-arranged. Storage Cabinets Storage cabinets are designed with wide open shelving for a wide variety of items to be kept safe in the office. Office managers can keep these locked or open, depending on the contents. Additionally, these are great for storage as they can easily be customized to fit a wide range of object sizes. While we hope to never encounter a fire problem, there is always that possibility. Fireproof file cabinets with standing desk are built thicker and stronger to save any documents inside in the event of a fire or flood. For a business with sensitive documents that can’t be replaced, fireproof file cabinets are a necessity.
Дата Публикации: 05-11-21
Element History - Brief Review
Описание: Element History - Brief Review Tungsten is a heavy metallic element, a member of the third series of transition metals. It has the symbol W, its atomic number is 74, and its atomic weight is 183.85. The name is derived from the Swedish tung sten, meaning “heavy stone.” Tungsten is also known as wolfram, from WOLFRAMITE, the mineral from which the element was first recognized by the English chemist Peter Woulfe in 1779. The metal was first isolated in 1783 by Spanish scientists Jose and Fausto d’Elhuyar through the reduction, by means of charcoal, of the tungstic acid found in wolframite. Tungsten occurs principally in the minerals scheelite, wolframite, huebnerite, and ferberite. In the United States these minerals occur most notably in California and Colorado. Elsewhere they are found in China, the Buryat republic of Russia, Kazakhstan, South Korea, Bolivia, and Portugal. The metal is obtained commercially by the reduction of tungstic oxide with hydrogen or carbon. The pure metal is steel gray to tin white in color. Its physical properties include the highest melting point of all metals, 3,410 deg C (6,170 deg F), a boiling point of 5,660 deg C (10,220 deg F), and a density of 19.3 g/cu cm. Pure tungsten metal is easily forged, spun, drawn, and extruded, whereas in an impure state it is brittle and can be fabricated only with difficulty. Tungsten oxidizes in air, especially at higher temperatures, but it is resistant to corrosion and is only slightly attacked by most mineral acids. In keeping with the other Transition Elements, it displays a range of oxidation states: 0, +1, +2, +3, +4, +5, and +6. This accounts for the many complex ions and coordination complexes in which tungsten can be found. Tungsten is not known to have any biological significance. TUNGSTEN PLATE Tungsten plate sheet is isostatically pressed and sintered from our high purity tungsten powders to compact ingots by powder metallurgy. Following the powder metallurgy is a series of further deformations and heat treatments until the required products are finished. We are now capable of machining tungsten plate and sheet with a range of thickness from 3.15 inches (80 mm) to less than 0.004 inches (0.1 mm). CHEMETAL USA is a recognized manufacturer and supplier of high quality tungsten plate and tungsten sheet. Every tungsten plate we supply is under stringent quality control at every stage of production, including the rolling, annealing, surface treatment and a series of tests. Thanks to our experience and capacity in the field of milling tungsten product, we can always guarantee that our customers receive high-performance tungsten plate products with exceptional purity, roughness, dimension, flatness and surface condition. Zirconium Zirconium is abundant in S-type stars in which heavier elements are formed by neutron capture. Traces of the element are also present in the Sun, and rock brought back from the moon was found to have a surprisingly high zirconium content. Down here on Earth scientists have recently discovered that zircons from the Jack Hill region of Western Australia were around 4.4 billion years old and this together with their oxygen isotope ratio of O16/O18 suggested that they could only have been formed when there was liquid water on the surface of the Earth, which is nearly 500 million years earlier than previously assumed. Today the element is widely used, as zircon (zirconium silicate), zirconium oxide and as the metal itself. Zircon sand is use for foundry equipment - in the heat-resistant linings for furnaces and to make foundry moulds and giant ladles. Mixed with vanadium or praseodymium, zircon makes blue and yellow pigments for glazing pottery and tiles. Zirconium oxide, with a melting point of 2715oC, is used to make heat-resistant crucibles, ceramics and abrasives. A red-hot crucible made from ZrO2 can be plunged into cold water without cracking. Zirconium oxide is stronger than toughened steel and is also used for knives, scissors and golf irons. The production of pure zirconium oxide is ca 25,000 tonnes per year, some of which goes into other products, including cosmetics, antiperspirants, food packaging, and even fake gems. The paper and packaging industry finds that zirconium oxide makes good surface coatings because it has excellent water resistance and strength, and is non-toxic. Hafnium Hafnium is dispersed in Earth’s crust to the extent of three parts per million and is invariably found in zirconium minerals up to a few percent compared with zirconium. For example, the minerals zircon, ZrSiO4 (zirconium orthosilicate), and baddeleyite, which is essentially pure zirconium dioxide, ZrO2, generally have a hafnium content that varies from a few tenths of 1 percent to several percent. Altered zircons, like some alvites and cyrtolites, products of residual crystallization, show greater percentages of hafnium (up to 17 percent hafnium oxide in cyrtolite from Rockport, Mass., U.S.). Commercial sources of hafnium-bearing zirconium minerals are found in beach sands and river gravel in the United States (principally Florida), Australia, Brazil, western Africa, and India. Hafnium vapour has been identified in the Sun’s atmosphere. Why Can Molybdenum Wire Cut Metal? Many people have heard of wire cutting, and the molybdenum wire cutting is also a kind of wire cutting. Then why can molybdenum wire cut metal? Many people may think that molybdenum wire cutting is to cut metal with a molybdenum wire, just like sawing wood with a saw. In fact, this is not the case. So in this article, we’ll try to find out the reason why molybdenum wire can cut metal. But first of all, let’s figure out what are molybdenum and molybdenum wire. What Are Molybdenum & Molybdenum Wire? Molybdenum is a silver-white refractory metal. In appearance, metal molybdenum is very similar to tungsten, but it is still easy to distinguish them by their density. The density of molybdenum is only half that of tungsten. Molybdenum is a rare metal on the earth, closely related to our lives, and enjoys a wide range of applications. For example, molybdenum is a strategic metal used in the defense industry, an important component of steel alloys, and an important nutrient element required by animals and plants. Because of its extremely strong inter-atomic binding force, it has high strength at room temperature and high temperature. Molybdenum wire is a kind of metal wire made of molybdenum as the main component (above 99%) with a diameter between 0.02 mm and 0.2 mm. It has a tough texture and high tensile strength, mainly used for cutting workpieces in the industry. Molybdenum wires have high precision, low wire breaking rate, and fast processing speed, which can realize stable long time continuous processing. Molybdenum wires can not only process various metals, but also are widely used for lead wire, heating element, and so on. NITINOL WIRE DESCRIPTION Nitinol wire is a nickel-titanium alloy with super elasticity and shape memory properties. Shape memory refers to the ability of Nitinol to undergo deformation at one temperature, then recover its original, under formed shape upon heating above its transformation temperature. Super elasticity occurs at a narrow temperature range just above its transformation temperature; in this case, no heating is necessary to cause the under formed shape to recover, and the material exhibits enormous elasticity, some 10-30 times that of ordinary metal. Niobium Note should be made of the fact that in the United States this element was originally called columbium (symbol Cb). The Nomenclature Committee of the International Union of Pure and Applied Chemistry in 1951 adopted a recommendation to name this element niobium (symbol Nb). American chemists use this name, but the metallurgists and metals industry still use the name columbium. Most niobium is used in special stainless steels, high-temperature alloys, and superconducting alloys such as Nb3Sn. The low cross-section capture of niobium for thermal neutrons of only 1.1 barn makes it suitable for use in nuclear piles. Niobium is a tough, shiny, silver-gray, soft, ductile metal that somewhat resembles stainless steel in appearance. Niobium is relatively low in density, yet can maintain its strength at high temperatures. It has excellent corrosion resistance to liquid metals, and can be easily fabricated into wrought products. Over 95% of all niobium is used as additions to steel and nickel alloys for increasing strength. Only 1 to 2% of niobium is in the form of niobium-base alloys or pure niobium metal. Superconducting niobium-titanium alloys account for over half of that, and high-temperature and corrosion applications account for the remainder. The density of niobium at 8.57 g/cm3 is moderate compared with most other high melting point metals. It is less than molybdenum at 10.2 g/cm3 and half that of tantalum at 16.6 g/cm3. Alloys Commercial niobium alloy is relatively low in strength and extremely ductile, and can be cold-worked over 70% before annealing becomes necessary. The resulting ease of fabrication into complex parts combined with relatively low density frequently favors the selection of niobium alloys over other refractory metals such as molybdenum, tantalum, or tungsten. High-temperature niobium alloys were developed in the 1960s for nuclear and aerospace applications and today serve in communications satellites, human body imaging equipment, and a variety of high-temperature components. Although niobium alloys have useful strength at temperatures hundreds of degrees above nickel-base superalloys, applications have been limited by their susceptibility to oxidation and to long-term creep.
Дата Публикации: 05-11-21
Seven Excellent Reasons To Use Plastic Security Seals
Описание: Seven Excellent Reasons To Use Plastic Security Seals Plastic security seals are those little things that make a big difference in the everyday lives of businesses and individuals alike, playing an integral role in numerous industries, thousands of medical facilities as well as private homes. Plastic security seals feature largely as a form of security in a variety of industries and also in the physical process of transporting commodities and merchandise goods and cargo. Plastic security seal can be either ground, sea, air or intermodal. Using security seals as a tamper-proof method of protecting goods goes hand-in-hand with the implementation of proper security systems. Here are really excellent reasons why industries from banking and logistics to private individuals and other facilities choose plastic security seals for a multitude of applications: Security is most certainly at the top of the list – with plastic security seals you can enjoy peace of mind as they act as a deterrent to tampering & theft. Theft & contamination of products can and will also be discovered instantaneously – plastic seals are designed to be tamper-evident. Intrusion attempts & tampering will show signs that are obvious and therefore will be brought to your attention right away. Plastic security seals can be produced as various length seals or commonly known as pull-tight seals. These plastic security seals can be used in various applications from around the neck of a bag, taught liner truck curtains, first-aid boxes or even fire extinguishers. Variable-length plastic security seals work in the same way as a cable tie, but have a much higher level of security as the locking mechanism is designed to be tamper-evident and can include in some cases metal inserts. Plastic security seals are serially numbered which gives the user the ability to implement an audit trail. Plastic security seals can be printed with various methods including heat foiling, laser marking or thermo transfer. Plastic security seals have various elements that makes each seal unique, these include seal type, colour, prefix and serial number. It is important to bear in mind that they are certainly not a fool-proof method of securing goods regardless of which industry they are used in although they do act as a deterrent to theft & tampering. Even the most sophisticated security seal not applied correctly and used naively won’t fullfil its purpose. Using security seals as a tamper-evident method of protecting goods goes hand-in-hand with the implementation of proper security systems. Whether plastic security seals are used for trucks, drums, ballot boxes, road tankers, chemical transportation, bags, in hospitals, sea freight containers or to secure items in the airline industry, if it is a plastic security seal you require we will undoubtedly have the right one suited to any application for your individual needs regardless of which industry you need this for. Padlock Seal It is well known that padlock seal is one of the most popular and popular types of security seals worldwide. In this article, we will discuss the process of creating a padlock as well as some of our other products. We are a New York-based, family-run manufacturing company that manufactures high-quality customizable security seals, including padlocks seals , and other electronic security products for a wide range of industries. Our tamper-proof seals manufacturer manufactures high-quality seals for a wide range of applications, such as locks, clamping shells, door locks and key locks. Plastic padlock seals come in a variety of colors, and the seals are marked for your security monitoring requirements. Metal padlocks are marked with a unique serial number, similar to plastic locks, but the metal construction differs from that of their plastic counterparts. The first variety of padlock seals is available in a variety of different types and can be perfectly matched to your company's security needs. Although these safety measures are small - the strength for safety purposes is low, but the plastic body can make them suitable for any color - the wire gasket can be embedded with any of the wide color variants available to meet the needs of any business. There are many other uses where the weight of a seal is deterred by the secured area, such as security cameras, but there is no need to deter the secured area with weight seals for them. The locking seal has both a plastic body and a wire seal mechanism that combines the best of both worlds into a strong security seal. The plastic padlocks have a whole body of plastic and have a locking mechanism to ensure that their security needs to fit your business. WHY USE A METAL SEAL? A metal seal is used when the application conditions are outside the specification limits of a polymer. For example, when: TEMPERATURE IS TOO HOT OR TOO COLD & PRESSURE IS TOO HIGH OR THERE IS A VACUUM. Metal Seals are primarily used in static applications for temperatures as high as 1000°C/1832°F and pressures as high as 6825 bar/99000 psi for select applications. At low cryogenic temperatures and low pressures, such as vacuum seal applications, metal inserted seals are far better than polymers since they do not become brittle and lose elasticity. Metal seals also have a low leakage rate down to 1 x 10-12 cc/sec per mm circumference which in comparison to high load O-rings is almost 100x better. How to Bypass a Wire Cable Seal Following on from our last post where we bypassed a tamper evident fixed length seal, we thought we would show you an easy bypass for a wire cable seal. You saw this seal briefly in our last video. We first worked out how to bypass this seal back at BSides 2018. We made a few assumptions on how it worked inside and found out if you used a needle you could slide the cable back over it. Before writing this article and making our bypass video, we did a whole lot of research and couldn’t find anything, or even pictures, on how these seals worked inside. If you look into the channel in the body before you insert the wire you can see a small barbed wheel. We assumed the wheel was fixed in there and it was made so it only turned one way. We decided to cut one open and see how it worked and were we surprised. It was NOTHING like we expected. So here is an amazing picture for you showing the inside of a wire cable seal! How a Wire Cable Seal Works Before we get into how this works, you might want to know what a cable seal actually is. A wire cable seal isn’t fixed length like the last one we bypassed. It’s what is called a variable-length seal. So it’s just like a zip tie really. You put on end into the locking mechanism and pull it through. You can leave it loose or pull it really tight around an object. It just depends on what you are trying to do with it. The main thing to realise is once the cable goes into the body, you cant pull it back out. The cable only goes one way. And unlike the fixed length seals that were plastic and you could break off with your hand, if you want to remove this one you need cutters to cut the wire cable. You will find a few different types of wire cable seal but the main difference between them is they have different thickness cable so they have different breaking strengths. The cable is usually made of braided aircraft cable. This makes it very strong and if you cut it, it will splay out making it pretty much impossible to rejoin without looking like it’s been tampered with. So if you were thinking of cutting it and feeding it back into the body, it’s probably not going to work. If you want an example of how we know it splays out, here’s a funny story for you. PICKING THE RIGHT SEAL Deciding on just the right seal for your application can be complicated, as there are many factors that need to be considered. This introduction to those factors will provide insight to assist you in coming up with the perfect seal that gets the job done. First, what is the seal meant to do? There are as many applications for rubber and plastic seals as there are profiles to choose from. WINDOW GASKETS These seals are specifically designed to lock in a window on a truck or trailer or anywhere a window would be used. It has two sides to it, one to fasten onto the flange and the other to lock in the glass. This is a two-part system with a smaller piece that is inserted into the seal to lock the two openings tight. This is made from a dense rubber compound in order to create a solid seal with the least amount of wiggle room on the flange or glass. SLIDE-OUT SEALS Slide-out seals are specially designed to create a soft seal on a slide-out room against a recreational vehicle (RV) and guard against water finding its way into the vehicle. We offer two main classes of slide-out seals for the RV market. One requires a flange on the RV for insertion, the other is applied with tape. We have several options that use the clip-on flange fastening system: ED-50468-T, ED-50465 and the ED-50474. Each one has slightly different features, but all include a combination of bulbs and flaps. We also have a slide-out seal system that doesn't require a flange and is applied with 3-M heat activated tape (HAT). This new patent-pending slide-out seal system is called the Uni-Seal. The Uni-Seal system includes three different types of seals for the outside, bottom and interior of the slide-out unit. The patent pending technology allows for a bulb to be pulled away for applying a mechanical fastener like a staple or screw and then the bulb will snap back to the original position. It is a one-piece slide-out seal design that is effective, can be efficiently installed, is shipped by the coil in a box and works with most RV designs.
Дата Публикации: 05-11-21