Category Archives: Manufacturer

Oil Seals: The Mark of a Well Oiled Machine

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While they are often called many different names, oil seals, grease seals, fluid seals, and dirt seals all accomplish the same task: they have the very important job of closing the spaces between stationary and moving parts in all kinds of mechanical equipment. For everything from automotive, industrial, and agricultural equipment to manufacturing equipment and machine tools – oil and grease seals are an absolute necessity in the modern world when it comes to attaining the level of performance and efficiency that helps provide us with the many vehicles, products, and services we benefit from every day.

 

The very vital components of all kinds of bearings, from angular contact bearings to cylindrical roller bearings are all protected by oil seals, to keep their precisely constructed assemblies safe and reliable at all times – in even some of the harshest applications.

 

In addition to actually closing the spaces and gaps in various machines, tools, and vehicles, grease seals also provide critical protection against harmful contamination. With the help of oil seals, what needs to stay in the machine (such as lubrication) does so, and what needs to stay out of the machine (dirt, debris, and other contaminants) is kept away from its hardworking and often-delicate parts and components.

 

Simultaneously and specifically in the case of machine tools and machine components, oil seals do much more than prevent the ingress of abrasives, moisture, and contaminants. They also ensure that various liquids do not mix together, such as oil based lubricants and water.

 

There are many grease oil seal designs engineered specifically to meet the needs of various industries. While it might seem like “a seal’s a seal” the actual design, materials, and configuration used can make a significant difference in certain applications. For example, some seal types are engineered to eliminate torque and friction, this enables the seal to move with the bearings and the other machine components while simultaneously protecting against contamination. Other seal varieties are engineered with greater efficiency in mind. Regardless of the requirement, the industrial world has come up with a number of designs and concepts to deliver the performance needed for virtually every application. Some of these seal types include:

 

  • Light duty deals
  • Heavy duty seals
  • O-ring seals
  • V-seals
  • Labyrinth seals
  • Multiple lip seals
  • And more…

 

Whether you’ve ever even considered oil and grease seals before. They have undoubtedly affected your life and the things you use every day. So next time you think about how all the things surrounding you are manufactured – consider the impact of one tiny component: the oil seal.

 

Lian Yu specializes in the design, production and distribution of oil seals and special seals for vehicle and mechanical applications. Our product lines include bus oil seals, oil bath seals, industrial oil seals, special seal, rubber seals, vehicle oil seals, etc. If you have any interest or question, please do not hesitate to contact Lian Yu Oil Seals.

 

Article Source: http://EzineArticles.com/6909477

A Variety of Types of Milling Machines

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Today we will learn about types of milling machine used in machining of metal work pieces. We know that milling machine is one of the most versatile machines which can perform any machining operation on unsymmetrical work piece. It is mostly used in mold manufacturing. Due to its versatility, milling machine is available in various types and sizes. These are described below.

 

Types of milling machine:

There are various milling machines are used in mechanical industries. These are described below.

 

  1. Column and knee type milling machine:

It is the very common milling machine type. In this machine a vertical column is attached to the bed which consist all gear drives which rotate the knee and saddle. A knee is situated on the base which can provide vertical motion to the work piece or which can move up and down. A saddle is attached to the upper section of the knee which can move in transverse direction. The table is placed over which can hold the work piece by use of climbing bolts.

 

  • Vertical milling machine:

It is one of the types of knee and column milling machine. The spindle if this machine is in vertical position. No arbor is required in this machine. The cutter tool has cylindrical shape and the cutting edges are situated at the circumference of the cylindrical face.

 

  • Horizontal milling machine:

As the name implies the spindle is situated horizontally. The spindle rotates horizontally. An arbor is attached to the machine which holds the cylindrical disk shape cutter which cuts the metal work piece.

 

  • Universal milling machine:

The universal milling machine is same as horizontal milling machine except there is a arrangement of swing up the table to 45 degree in either direction.

 

  1. Fixed bed milling machine:

In this milling machine the bed of the machine is fixed to the machine. There is no arrangement of knee and saddle which can move vertically and transversally. The worktable is direct situated at the fixed bed. The spindle of this machine is mountain on a movable spindle head. It can move in vertical and horizontal direction and perform the cutting operation.

 

  • Simplex milling machine:

In the simplex machine spindle head or the spindle can travel only in one direction. Mostly it travels in vertical direction.

 

  • Duplex milling machine:

In this machine the spindle can travel both in vertical and horizontal direction.

 

  • Triplex milling machine:

In triplex machine spindle can move in all three direction along X Y and Z axis.

 

  1. Planner milling machine

Planner milling machine is mostly used for facing operation in mass production. These machine are similar to the bed type milling machine except it can mounted with various cutters and spindle heads to the machine. These cutters can perform the facing operations simultaneously.

 

  1. Special milling machine:

These machines are the modern milling machines which are developed to easy the milling operations according to the jobs.

 

  • Tracer milling machine:

Tracer machine can perform all difficult die making job by synchronizing the tracing unit. It can develop any difficult shape. It is mostly used in automobile and aerospace industries.

 

  • CNC milling machine:

CNC is most versatile milling machine which is control by a computer. It is upgrade version of bed type milling machine in which the spindle can move in all three direction and the table can rotate 360 degree. These all movement is hydraulically controlled which is command by a computer. Any difficult geometry can make on it. A sketch of the work piece is loaded to the computer which is cut on work piece by the cutters automatically.

 

Jiuh Yeh is the professional and experienced milling machine and machining center manufacturer in the industry. Our knee type milling machines are quality constructed to give extraordinary milling efficiency, quality, maximum rigidity, smooth operation and long term accuracy. From design to manufacture, assembling and inspection, all knee type milling machines are strictly controlled at every stage. We can ensure our machine’ quality and stability.

 

If you need more details about knee type milling machine or other milling machines, welcome to browse Jiuh Yeh’s website and feel free to contact with us.

 

 

Article Source: http://www.mech4study.com/2016/05/types-of-milling-machine.html

The Right Tennis Nets – All about Selection

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The process of choosing tennis nets is dependent upon various factors such as the kind of court you have, how often you play, and the likes. Durability and quality is a must when hunting around for tennis nets, most especially if you play frequently or if the playing season is long.

 

Tennis nets are generally made out of polyethylene material, stretched from one post to another. Other accessories that form them are dowels, cables, bands, etc. The said objects may be classified into portable, match/competition, recreational types, etc. Proper selection usually relies on how big the court is as well as the kind of game being played.

 

There are different classes of tennis nets to choose from, the most common being the ones for leisure and the ones for challenge. Mesh for recreation is normally made from intertwined material e.g. polyethylene, more often than not, with the width of 2.5 millimeters; a netting created for the purpose of competition is also made out of interlinked textile, generally polyethylene, measuring 3.6 millimeters in terms of width.

 

You will notice that most tennis nets are braided and comprised of the material: polyethylene. The reason behind the braiding process is that it helps make the mesh stronger. As for polyethylene, it may be considered the best material for nettings because of how well it can withstand various weather conditions.

 

Aside from nettings for recreation and competition, the present market also sells tennis nets that are transferable from point A to point B to point C—in other words: ‘portable’. The said type, of course, boasts of added convenience for players. Another type is made with a changeable height, allowing people of all ages to play. For example, for children players, the height of the mesh may be lower compared to adult players.

 

When deciding on which tennis nets to buy, there are some pointers to apply. First, the material that makes up the tennis grid should be durable enough to withstand changes in the weather. Mildew resistance should also be present. Another tip on buying nettings is to ensure that the product you bring home has the correct dimensions, especially if it will be used for formal matches. The accepted measurement is usually three feet high at the middle.

 

Other things to keep in mind when purchasing tennis nets most especially the portable types, is to look into stability and how you can safeguard your floors from scuffing. Mesh that has steel frames is more long-standing even when strong winds pass by. Portable netting with its feet made of rubber will maintain shiny floors and give protection from scratches.

 

Once you have procured tennis nets, you also have to know how to make them last longer. See to it that they are properly installed and supported well by their posts. Remember as well that no matter how durable your tennis nets are, they cannot always take ugly weather, so it is necessary for you to uninstall them and store them until better weather resumes.

 

Holy Hoe Enterprise Co., Ltd. is the qualified tennis nets manufacturer and supplier in the industry. Providing tennis nets which with features of extra durability, anti-UV and cold-resistant for customers. Suitable for various courts tennis nets all can be offered by Holyhoe Taiwan. If you are interested in learning more details about Holyhoe, welcome to browse our site and feel free to contact with us!

 

 

Article Source: http://EzineArticles.com/2162668

6 Things You Might Not Know About Your Bike Chain

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The chain is one of the most important bicycle parts in a bicycle, but it’s often overlooked. When it’s working properly, you don’t even realize it’s there—but when it’s not, it’s probably the only thing you think about.

 

We rounded up six things you might not know about bike chains to help you get the most out this crucial drivetrain component, and celebrate just how impressive your loop of metal links really is.

 

The earliest bikes didn’t have chains (and some still don’t). Most of us are somewhat familiar with the Victorian-era penny-farthing bikes. If you take a close look, you’ll notice that they don’t’ have chains. To move forward, cyclists turned pedals attached directly to the front wheel, and could only increase their speed by pedaling faster or getting a larger front wheel. Those bikes might look fun to ride (at least for a bit), but falling off one definitely hurt—especially in an era before helmets.

 

Some bikes still forego chains in favor of Gates Carbon belt drives (which look a bit like tank treads), or even more rarely, shaft-drive systems.

 

Chains are more complicated than you might expect. With up to 116 links in a standard bike chain, it has more moving parts than any other bike component. Of course, you’ll need to remove some links depending on whether you’re riding a nine-, 10-, or 11-speed drivetrain; your chain should be long enough that it can be shifted onto the largest front chainring and the largest cog on your cassette without jamming, but not so long that it has too much slack in the smallest chainring and cog. The quickest and easiest way to figure out the proper length for your bike is to use your old chain as a guide.

 

It can be used as a weapon. In 1954, a Scottish man was sentenced to three years in prison for assaulting a Glasgow movie theater manager with, you guessed it, a bicycle chain. Across the internet, you can find accounts of bike chains used as de facto whips or weapons. So if your bike breaks down in the middle of the zombie apocalypse, and you have a chain tool in your saddlebag, you at least have a fighting chance.

 

How you ride affects the life of your chain. Riding at a high cadence is typically not only more efficient, but also cost effective. Pedaling in a tougher gear puts more stress on the chain, significantly shortening its lifespan. Also, avoid cross-chaining—the practice of using the small chainring and small cog in the rear, or large chainring and large cog in the rear—if you don’t want to stretch out your chain.

 

Replacing your chain regularly can prolong the life of your drivetrain. Most mechanics agree that you should replace your chain about every 2,000 to 3,000 miles, depending on your riding style. Many Tour De France riders wear out two or even three chains on their primary bike over the course of the three-week race.

 

The easiest way to determine if you need a new chain is to use a chain-checker, which measures how badly your current chain has stretched. Although a properly maintained chain can technically last nearly 8,000 miles, it becomes much less efficient as it wears and elongates, says Jason Smith of Colorado-based research firm Friction Facts, with two watts of lost power for every one percent of elongation.

 

What’s more, the gritty grunge that sticks to your chain lube acts as a grinding paste, causing the pins and rollers to wear down. According to Smith, these increases the center-to-center distance of your chain, and this chain stretch will wear out your gears prematurely. So instead of paying $50 for a new chain, you’ll end up paying $300 or more for a new chain, chain ring, and cassette.

 

You. Must. Clean. Your. Chain. To keep a chain in optimum shape, you need to clean it often. Every pro and amateur wrench has their preferred method. For instance, Park Tool master mechanic Calvin Jones uses Park Tool’s Chain Gang filled with the company’s degreaser every time he cleans, while Josh Simonds (the creator of NixFrixshun chain lube) suggests simply wiping down the chain with a clean cotton rag after every ride; when the chain eventually becomes overwhelmed with contamination, Simonds says, use a nylon brush to scrub it with hot water and Dawn liquid soap. If it’s really filthy, take your bike into your local shop for an ultrasonic cleaning, or take off the chain and shake it around in a Gatorade bottle filled with degreaser.

 

After the chain is clean, be sure to dry and lube it, wiping away any excess.

 

BEV.INT’L Corp is the manufacturer of specializing in producing durable and high quality bicycle part and accessories. All of our bicycle parts are manufactured using the industry’s most advanced techniques and under a strict quality-control program. We are proud to specialize in carbon composite manufacture and have significant in-house R&D experience. Learn more information about bicycle part series, please take some time to review our current bicycle parts products. Give us an opportunity to make BEV become your new favorite bike parts and accessories manufacturer!

 

Article Source: http://www.bicycling.com/repair-maintenance/maintenance/6-things-you-might-not-know-about-bike-chains

What are Electric Immersion Heaters and Their Pros and Cons?

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Here, we tell you what you need to know about immersion heaters – including who needs them, the pros and cons of having an immersion heater, and why it could be costing you more than necessary to heat your water.

 

Plus, find out how you could use an immersion heater to get free hot water.

 

What is an immersion heater?

An electric immersion heater is an electric water heater that sits inside a hot-water cylinder. It acts a bit like a kettle, using an electric resistance heater (which looks like a metal loop or coil) to heat the surrounding water.

 

Immersion heaters are connected to their own power supply via a cable. They can be easily switched on and off, as there’s no need to constantly heat the water in your hot-water cylinder. Immersion heaters can either be used as a property’s primary water heater, or as a backup water heater for combi boilers.

 

Who needs an immersion heater?

Most households will use a combined central heating/hot water boiler to heat their home and provide hot water. However, some households may choose to have an immersion heater too, as a backup.

 

Other households, particularly those with older heating systems, use electric immersion heaters as their only source of hot water. Most immersion heaters are found in rented housing.

 

Immersion heater – pros

  • If your immersion heater has a thermostatic control, it will automatically turn off when it reaches the temperature you set on the thermostat.

 

  • Immersion heaters are not connected to your boiler. So if your boiler breaks down, you can still generate hot water for your home.

 

  • If your immersion heater has a well-insulated jacket, it can keep water hot for several hours after it switches off.

 

  • Time-of-use tariff customers can set timers so their immersion heater switches on during cheaper off-peak hours.

 

  • You can usually turn your immersion heater on or off by simply flicking the switch on the wall socket.

 

Immersion heater – cons

  • Heating water using electricity is more expensive than heating water with gas.

 

  • A typical immersion heater uses 3 kilowatts of electricity an hour, so it will cost the average house about 50p an hour to run.

 

  • Most households will need to run an immersion heater for at least a couple of hours a day to get the water hot enough – costing at least £360 a year.

 

  • An immersion heater needs a thermostatic control, otherwise it can heat the water to far too high a temperature.

 

  • Some heating engineers may recommend you leave your immersion heater on 24/7 – however, this can be hugely expensive unless it has a thermostatic control.

 

  • Be aware that you need to heat the water in your immersion heater to above 50°C to kill off bacteria.

 

Established in 1971, Cheng Tay Heater & Instrument Co., Ltd. has been in the business of developing and introducing the latest machinery while pioneering new electrical heating techniques. We can supply tailor-made or prototype heating elements for the entire scientific and industrial spectrum. If you need more information about electric immersion heater or other heaters, welcome to browse our website or contact with Cheng Tay directly!

 

 

Article Source: http://www.which.co.uk/reviews/home-heating-systems/article/home-heating-systems/immersion-heaters

What Is a Flanged Ball Valve?

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Based on the ball-socket design, the ball valve is an in-line device shaped like a ball with an orifice through its center. When oriented correctly, the ball valve allows product to flow through easily. By grabbing the handle and turning the ball perpendicular or sideways, an individual can stop the flow. Found in almost every industrial environment, a flanged ball valve helps to control the flow rate through any plumbing application. The flanged ball valve is similar to the standard ball valve, but has mating connections or flanges that allow for quick and easy replacement of a damaged valve.

 

For instance, a valve without flanges would require an individual to manually cut piping and then reconnect it with a new valve in place. This reconnection can introduce additional hazards, as well as increased costs. In other words, some plumbing connections might require welding, soldering, or machining threads onto the ends of pipes for threaded applications.

 

When replacing a flanged ball valve, an individual should look for the bolted connections on either side of the valve. Loosening and removing the bolts from the flanges will allow the new ball valve to replace the broken ball valve. The modular design of flanged ball valves lends to their popularity, since a new flanged ball valve can bolt right into place of an old one. This ease of replacement is why flanged ball valves are commonly used when rapid repairs are essential.

 

A variety of flanged ball valves are available to cover nearly any application. Regulations exist to govern the varying sizes one may encounter. In the United States, for example, the American Society of Mechanical Engineers (ASME) governs the regulations, or codes. These regulations ensure that one flanged ball valve bears the same specifications as another, even if created by different manufacturers. The fact that one ASME flanged ball valve can replace another of the same size increases the interchangeability.

 

Valves come in many different configurations, such as the knobs on the kitchen sink, which are typically ball valves. These are generally found at some midpoint in a typical plumbing configuration. The best application for a ball valve is to quickly and easily stop product from flowing through pipes or plumbing, allowing for repairs to take place. A flanged ball valve has a variety of plumbing applications, mostly industrial, yet features the simple operation of the un-flanged variety, which requires merely moving a handle one quarter of a turn. In this model, flanges on either side of the actual valve make replacements of a broken valve relatively easy.

 

Wellgrow Industries Corp. is the professional ball valve and gate valve manufacturer in the industry. We offer a variety of valves likes flanged ball valve, globe valve, butterfly valve, diverter valve and so on products. If you are interested in learning further specification and details about flanged ball valve series, welcome to browse Wellgrow’s website or contact with us directly!

 

Article Source: http://www.wisegeek.com/what-is-a-flanged-ball-valve.htm

Important Components in Fluid Power Industry – Hydraulic Valves

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Hydraulic valves are essential as they help control the flow of any liquid specifically, oil, in the system. Choosing the most suitable valve(s) is crucial to any hydraulic system. It comes in different sizes and types depending on the pressure of the system as well as the flow rate.

 

3 Main Classifications of Hydraulic Valves

 

There are 3 main classifications of hydraulic – directional, pressure and flow control. Directional are used to control the fluid’s direction from the start to the end. Pressure valves however are used when a specific pressure level is required. The flow controls are used to control the flow rate of the fluid in the system.

 

Other Types

 

Aside from the main classifications, there are special hydraulic valves that are used dependent on the requirement. Some examples would be multi-block directional, modular, cartridge, electro-hydraulic servo, electro-hydraulic proportional/digital, micro-hydraulic and water pressure control.

 

Multi-block directional ones are composed of a main valve with several valves including a directional, a pressure and a check valve that is used to centralize control of the machine. The safest and most environmental friendly valve on the other hand is the water pressure valve which is used to control water in many water hydraulic systems.

 

4 Ways of Valve Installation Connection

 

Hydraulic valves are essential to a complete system. That being said, there are four different ways that valves are installed and connected – threaded, modular, sandwich plate and cartridge.

 

  1. Threaded:

These valves are usually used for small flow systems as they are lightweight. This valve is very popular and can be mounted along pipelines.

 

  1. Modular:

Modular valves are often used with modeling and pressing machines as well as with hydraulic power units. The valve makes use of valve sub-plate to connect with pipelines.

 

  1. Sandwich:

These valves are flexible as one can use it as a single unit or as part of the hydraulic oil connection. Often, the valve is sandwiched between a direction control and a sub-plate to connect with the pipe system.

 

  1. Cartridge:

Cartridges are divided into two different styles – cover plate or a two-way cartridge valve/threaded which can be two or more cartridges. The valves are made with sleeves, seat, spring, spools and sealing rings. Once all the parts are assembled, the valve is then inserted into a valve cavity. The cavity helps protect the parts inside making it suitable for heavy machine use.

 

These are just a brief overview of the different types of valves and hopefully provide readers an idea helping them make smart decisions later on.

 

Ashun was established in 1984 as a manufacturer for hydraulic and pneumatic products; we design and develop high quality and competitive hydraulic valves and pneumatic valves. We also offer customization service. Welcome to contact with Ashun to learn more information about cylinders and valves.

 

 

Article Source: http://EzineArticles.com/8967413

3 Major Types of Material Handling Equipment

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The process of moving the heavy goods around the warehouse is only possible with the right material handling equipment. This can include items like storage units, forklift trucks and tools that take an active part in the process of moving supplies in and out of the warehouse. Here are some of the major types of material handling equipment:

 

Storage equipment

 

Storage equipment relates to the racks, shelves, pallets or mezzanines that are used when goods are in temporary storage and waiting to be transported to an ongoing destination. A great benefit of using the purpose made pallets or racks is the ease in which they can be stacked to minimize the usable footprint. Many of the large warehouses rely on the proprietary packaging system to increase the ability to store a high volume of goods while conserving space. By creating the bespoke storage equipment it is possible to size them to match the exact dimension of goods that are normally handled.

 

Engineered systems

 

The engineered systems include a variety of automated tools that improve the ability to move heavier loads around the warehouse floor. One of the most popular engineered systems is the fully automatic storage and retrieval system. This type of system involves an automated structure that consists of shelves, aisles and racks that is controlled via a shuttle system. The actual shuttle system is a type of cherry picker and is operated via a fully automatic system or by a worker. This is a very fast and efficient method to locate and retrieve items in a large warehouse. Other similar equipment includes the automatic guided vehicles, robotic delivery systems and conveyor systems.

 

Industrial Trucks

 

The industrial trucks are essential tools used to move the heavy products and materials in and around the warehouse floor. This type of equipment can vary quite significantly and include several types of forklift trucks, pallet-jacks and hand-operated trucks. The trucks differ in size and function to make it possible to easily move the different types of loads. A common method for lifting items is a flat surface or forks like on a forklift truck. The operation of the forklift truck can also vary. For instance, there are trucks that have a person to manually operate the control, while other systems are more automated. Additionally, the trucks include the stack or non-stack design, with the non-stack unit solely used to transport goods and unable to help with loading.

 

Global Power Co., Ltd. is the professional and experienced manufacturer of specializing in forklift truck series. The models of CT POWER forklift truck are compact and have obtained the certification of CE and ISO 9000, which have so far won good reputation among customers from Europe, Middle East, U.S A., Canada, Southeast Asia, etc. Learn more information about forklift trucks, welcome to visit our website or contact with Global Power directly!

 

Article Source: http://EzineArticles.com/9461458

Different Dyeing Methods for Textile Dyeing

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Textile dyeing, which is color applied to fabric by different methods of dyeing for different types of fiber and at different stages of the textile production process. Dyeing can be done during any stage in the textile manufacturing process. Textiles may be dyed as fiber, yarn, fabric, or garments, depending upon the type of the fabric or garment being produced.

 

These methods include:

 

  1. Direct Dyeing

When a dye is applied directly to the fabric without the aid of an affixing agent, it is called direct dyeing. In this method the dyestuff is either fermented (for natural dye) or chemically reduced (for synthetic vat and sulfur dyes) before being applied. The direct dyes, which are largely used for dyeing cotton, are water soluble and can be applied directly to the fiber from an aqueous solution. Most other classes of synthetic dye, other than vat and sulfur dyes, are also applied in this way.

 

  1. Stock Dyeing

Stock dyeing refers to the dyeing of the fibers, or stock, before it is spun in to yarn. It is done by putting loose, unspun fibers in to large vats containing the dye bath, which is then heated to the appropriate temperature required for the dye application and dyeing process.

 

Stock dyeing is usually suitable for woolen materials when heather like color effects are desired. Wool fiber dyed black, for example, might be blended and spun with un-dyed (white) wool fiber to produce soft heather like shade of grey yarn.

 

Tweed fabrics with heather like color effects such as Harris Tweed are examples of stock dyed material. Other examples include heather like colors in covert and woolen cheviot.

 

  1. Top Dyeing

Top dyeing is also the dyeing of the fiber before it is spun in to yarn and serves the same purpose as stock dyeing – that is, to produce soft, heather like color effects. The term top refers to the fibers of wool from which the short fibers have been removed. Top is thus selecting long fibers that are used to spin worsted yarn. The top in the form of sliver is dyed and then blended with other colors of dyed top to produce desired heather shades.

 

  1. Yarn Dyeing

Yarn dyeing is the dyeing of the yarns before they have been woven or knitted into fabrics. Yarn dyeing is used to create interesting checks, stripes and plaids with different-colored yarns in the weaving process. In yarn dyeing, dyestuff penetrates the fibers in the core of the yarn.

 

There are many forms of yarn dyeing:

  • Skein (Hank) Dyeing
  • Package Dyeing
  • Warp-beam Dyeing
  • Space Dyeing

 

  1. Skein (Hank) Dyeing

Skein dyeing consists of immersing large, loosely wound hanks (skeins) of yarn into dye vats that are especially designed for this purpose. Soft, lofty yarns, such as hand knitted yarns are usually skein dyed. Skein dyeing is the most costly yarn-dye method.

 

  1. Package Dyeing

In package dyeing the yarn is wound on a small perforated spool or tube called a package. Many spools fit into the dyeing machine in which the flow of the dye bath alternates from the center to the outside, and then from the outside to the center of the package. Package dyed yarns do not retain the softness and loftiness that skein-dyed yarns do. They are however satisfactory and very widely used for most types of yarns that are found in knitted and woven fabrics.

 

  1. Warp Beam Dyeing

Beam dyeing is the much larger version of package dyeing. An entire warp beam is wound on to a perforated cylinder, which is then placed in the beam dyeing machine, where the flow of the dye bath alternate as in the package dyeing. Beam dyeing is more economical than skein or package dyeing, but it is only used in the manufacture of woven fabrics where an entire warp beam is dyed. Knitted fabrics, which are mostly produced from the cones of the yarn, are not adaptable to beam dyeing.

 

  1. Piece Dyeing

The dyeing of cloth after it is being woven or knitted is known as piece dyeing. It is the most common method of dyeing used. The various methods used for this type of dyeing include jet dyeing. Jig dyeing, pad dyeing and beam dyeing.

 

  1. Garment Dyeing

Garment dyeing is the dyeing of the completed garments. The types of apparel that can be dyed are mostly non-tailored and simpler forms, such as sweaters, sweatshirts, T-shirts, hosiery, and pantyhose. The effect on sizing, thread, zippers, trims and snaps must be considered. Tailored items, such as suits or dresses, cannot be dyed as garments because the difference in shrinkage of the various components and linings distort and misshapen the article.

 

Garment dyeing is done by placing a suitable number of garments (usually about 24 sweaters or the equivalent, depending on the weight) into large nylon net bag. The garments are loosely packed. From 10 to 50 of the bags are placed in large tubs containing the dye bath and kept agitated by a motor – driven paddle in the dye tub. The machine is appropriately called a paddle dryer.

 

Of these Direct dyeing and Yarn Dyeing methods are the most popular ones.

 

Tong Geng Enterprise Co., Ltd. is specializes in design and manufacturing of dyeing equipment for fabric dyeing and yarn dyeing. With over 30 years of solid experience, Tong Geng is one of the leading and skilled suppliers in the world. If you are interested in learning more information about textile dyeing and dyeing machines, welcome to browse our website or contact with Tong Geng directly!

 

Article Source: http://textilelearner.blogspot.tw/2011/12/methods-of-dyeing-different-dyeing.html

 

Reverse Osmosis Water Purifier

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The importance of clean and potable water can’t be undermined in any way. We all know the importance of water and how essential it is for our survival. The fact that our earth comprises of 70% water is not enough to quench our thirsts as another fact that only a little portion of this huge percentage is actually fit for consumption. Availability of clean drinking water has become a luxury that not all of us are available to enjoy.

 

The conventional source of drinking water has been tap water. But tap water comes with a lot of risks and health hazards as it contains impurities like phosphates, nitrates and heavy metals. The problem that lies in front of us is: how to quench our thirsts? Technology has gifted us with a lot of inventions that have made our lives much easier and simpler. Another gift of technology is RO water purifier.

 

Water purified from RO water purifier is relatively pure and also odorless and colorless. Reverse osmosis water purifier gives you water that is free if dissolved minerals. Equipped with the special property of being able to actively absorb toxic substances from water and eliminate them, Reverse osmosis water purifier gives you water which is clean and pure and absolutely fit for drinking.

 

Fluoride, a harmful chemical that is also responsible for yellowing of teeth is present in considerable quantities in tap water but water purified from RO water purifier is free of this chemical. The process of reverse osmosis removes hardness from water giving soft water which is apt for consumption. Reverse osmosis water is also free from sulfates, arsenic, aluminum, radioactivity, salts, detergents, bacteria and most viruses.

 

We recognize the advantage of reverse osmosis and thereby fully equip this technology in our water purifiers. We understand the importance of pure drinking water in the present day scenario where the quality of water is deteriorating each day and we often have to compromise on the quality of water. Triwin RO water purifiers provide you clean drinking water that is absolutely fit for consumption.

 

Established in 1984, Triwin accumulated years of experience in manufacturing products, such as water purifier and other water treatment equipment. We always fulfill the needs for top quality products and equipment in the water treatment industry worldwide. Learn further information about RO water purifier series, please do not hesitate to contact with Triwin directly!

 

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