The Best Casting Process for Your Needs

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In the field of metal work, various methods of casting are used to turn molten metals into specific shapes for use in commercial and industrial products. Within each casting process, a cavity is formed in which molten metal is poured either with gravity or high pressure. After a number of seconds have passed, the metal solidifies and the newly hardened casting is released from the mold or form.

 

Casting is most often employed to make intricate metal objects that would otherwise be complicated and much costlier to produce with different methods.

 

The process of casting has existed since ancient times. Some of the earliest examples of metal casting exist today in the form of jewelry, tools and sculptures that have been retrieved from archeological sites and put on display in museums around the world. Early methods of casting included plaster mold casting and lost wax casting.

 

Today, the methods of casting fall into the non-expendable and expendable categories. Other variants of the two categories include the methods used to fill cavities — including pressure and gravity — and the material used to form a particular mold.

 

First, there’s the non-expendable type of casting, which would account for any method in which the mold can be used again. Examples of non-expendable casting include permanent mold and die casting methods, in which the molding cavities are made of metal. Non-expendable casting is often favored for its ability to produce uniform parts at high volumes.

 

Expendable casting accounts for any method in which the mold is discarded after a single use. Examples in this category include sand and plaster casting, in which molten metal is poured into a cavity that is then broken away to reveal a finished casting. A further example of expendable casting is investment casting, a modern version of lost wax casting, in which molds are formed around wax patterns, which are then melted away to reveal hard ceramic cavities for subsequent metal molding.

 

Aluminum Die Casting

With aluminum die casting, a process takes place where molten metal is forced into a cavity in which a mold is formed. The process is achieved with a pair of steel dies that have been machined into particular shapes, which form the molding cavity when joined together. A similar process can also be applied with castings made of copper, magnesium and other metals.

 

The aluminum die casting process is divided into four stages: preparation, fill, ejection and trim off the gate.

 

First, a lubricant or die release agent is applied to each half of the cavity in preparation for the injection of the metal to be cast. Next, the dies are brought together and the cavity — in some cases one, in some cases two or more — is filled with molten metal under high pressure, which is maintained until the casting hardens.

 

A waiting period follows, after which the metal will have hardened into its final shape. With that step completed, the dies are separated and the castings are pushed out of the mold with ejector pins. Afterward, the parts that comprise the scrap — runners, sprues, overflows etc. — are trimmed away. In some cases, the finished shape will then receive sanding or polishing along the surfaces.

 

The high pressure at which the cavity is filled is crucial to the process because this prevents any part of the casting from hardening prematurely. This also ensures that the entire cavity is filled with no discontinuity, which could otherwise occur in die castings with complex shape formations. High pressure also eliminates the possibility of air bubbles, while the entrapment of air is further avoided with vents along the dies surfaces.

 

Aluminum die castings can also be produced with secondary features on molds, such as holes and grooves. Aluminum die casting is used to create everything from marine and sporting components to oil pumps, engine cradles, transmission transfer cases, heatsinks, enclosures, and brake components. The process is generally reserved for high-volume industrial productions.

 

Sand Casting

In the process known as sand casting, hardened casts of sand are used within a gating system to mold metals and other materials into shape. The sand is formed around patterns, which form cavities within the sand that are subsequently filled with molten metal. Due to sand’s heat-resistant quality, sand casting accounts for the vast majority of metal mold production.

 

To make the sand castings, sand is mixed with clay, water and sometimes other substances. The process here is a lot different than die casting because the hard sand that forms the mold is broken away and dispensed with afterward. Nonetheless, sand castings are often used to produce complex molds that are harder to make with die castings.

 

The process of sand casting is divided into several steps. First, a pattern is placed into the sand, where a cavity is then formed within the sand through the application of gating, after which the pattern is removed. In some cases, the cavity will be rather complex, with multiple grooves and several turns, twists and corridors.

 

Next, the cavity within the sand is filled at high pressure with molten metal. Once the metal has cooled into a hardened shape, the sand cast is broken away and the mold is removed. The finished mold might then be modified in whichever way is necessary, whether it needs to be trimmed or buffered to a smooth shine.

 

Sand casting molds are commonly used to make complex metal objects, such as one-piece equipment parts with various contours that would be hard to produce through other casting methods. Examples include the trap pipes used in household plumbing systems and metal doorknobs and lampshades.

 

Sand casting is also used for artistic items such as living room fixtures and metal sculptures. Sand casts are even used in jewelry production for items such as rings and metal bracelets. Whether the finished product is complex or simple, sand casting is a reliable method that allows manufacturers to form exact shapes with the utmost precision and detail.

 

V-Casting

An alternate form of sand casting is known as vacuum molding, or V-casting, which involves the use of unbonded sand. V-casting is often employed in the production of ferrous and non-ferrous metal molds.

 

The process makes it possible to form molds without the use of pressurized compaction methods, such as squeezing and blowing. Instead, clean molds are achieved with dry sand and vacuum pressure. V-casting allows manufacturers to do away with sand mixers and other equipment required for hardened sand.

 

V-casting can be carried out with a simple arsenal that consists of a vacuum system, a pattern, a film heater, a flask and a vibration surface. The process is generally clean and free of fumes or odors. Once finished, the dry sand is simply recycled for the next application. As such, V-casting is one of the most waste-free methods by which molds are cast for metal products.

 

In V-casting, patterns are placed onto boards with vacuum chamber vents. Heat-softened sheets of plastic are then placed over the pattern and the vacuums are activated. This causes the plastic to wrap tightly to the details of the pattern. Once hardened, the pattern is removed from the mold. Then, a vacuum process is utilized to pull molten aluminum through the cavities.

 

V-casting is often favored due to its ability to produce fine finishes with precise dimensions. A multitude of shapes can be achieved with the method, whether the mold is lightweight or heavy. The process allows you to reuse patterns multiple times and leaves little scrap excess material upon completion.

 

Investment Casting

Investment casting is a modern-day method of lost wax casting, which has been used for thousands of years in the creation of art fixtures, figures and masks. Archeological finds throughout Eurasia have included plates, vases and furnishings made with earlier forms of the wax casting method.

 

Investment casting is favored in a variety of industrial productions because of its versatility and accuracy of detail. Numerous mechanical pieces, such as valves and turbines, are made from the process of investment casting.

 

First, a master pattern is made from wax, or sometimes from wax replicas of a preexisting non-wax pattern. Next, a mold is created, which is also referred to as the “master die.” Several different wax patterns can be combined into a bigger pattern for a single molding. For industrial applications, the wax patterns are applied to a sprue that connects to a mechanical arm.

 

Next, the wax molds are dipped in ceramic with factory machinery. Then, the mold is heated and the wax melts out from the surrounding ceramic mold. With the ceramic molds now empty, molten metals are poured into the cavities formed by the ceramic.

 

Once the metal inside the ceramic molds have hardened, the ceramic forms are broken away. Afterward, excess parts are removed from the metal shapes, which are then readied for their ultimate use.

 

Where to Find Die Casting Manufacturer?

Champion H&C Inc. is a professional manufacturer of specializing in kinds of die casting processes and CNC machined products. Such as aluminum die casting parts, zinc alloy die casting parts, CNC lathe machining parts, CNC turning parts, and much more products that you all can find on Champion H&C website. If you need more information about die casting process, please do not hesitate to send inquiry to contact with Champion H&C Inc. immediately.

 

 

Article Source: https://diecasting.com/blog/2017/07/31/best-casting-process-for-your-needs/

The Stages and Machines Involved in Producing EPS Foam Blocks

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Expanded Polystyrene foam, also known as EPS is a highly durable material that is used in a wide variety of consumer products. It can be found nearly everywhere, in your local food store (plates, cups, food containers etc.) and the local electronics stores (insulation for refrigerators, coolers etc.), plastic utensils are made of Styrene, CD cases and cloth hangers are all made of Styrene. It is also an excellent insulation material.

 

EPS foam starts at very small beads, also known as granules, similar to sand in texture.

 

In order to make an EPS foam block out of these raw small beads, they need to be “blown” into larger beads, about 50 times its original size. This is called the pre-expansion process. Depending on the density required, the beads are blown using steam in a machine called expander or steamer. The expander can be a simple manual machine that a worker places the raw material in, then turns on the steam. Or, it can be an automatic machine where the material is blown stems automatically. At this stage, the beads – up to 50 times their original size – are called pellets and are ready to be molded.

 

Continuous pre-expanders are operated without pressure and are equipped with an open- top agitator tank in which raw material is continuously fed from the bottom by an adjustable screw conveyor. Steam is also fed continuously into the pre-expanding room through openings that are positioned shortly above the tank.

 

No matter which pre-expander is used, they all trickle the expanded beads into a so-called fluid bed dryer, where they are dried and stabilized before they are transported into the storage silos.

 

The next step is to mold the expanded beads. There are 2 options for molding. One is using an EPS shape moulding machine, which molds the foam into precise shape and size required. The other is using an EPS block molding machine which will result in creating foam blocks or sheets, 3′ x 2′ x 8′ up to 5′ x 5′ x 24′. The EPS expanded beads are poured into the molding machine for a second heating with steams. This will result in the foam beads being swelled and pressed against each other, until they become one solid piece of foam

 

The two most common blowing agents used are pentane and carbon dioxide. This process called polymerization fills the polystyrene with millions of air pockets, which helps it to expand and also gives it a low thermal conductivity. During expansion, the product can be molded into a variety of shapes and sizes. The final product is 90% air, but amazingly, EPS can have a compressed strength up to 40 psi.

 

In the last step, the EPS foam is removed from the molding machine and cooled down. If you used the shape molder and created a smaller EPS shape, then the cooling time will be shorter than when creating a whole foam block. The larger the foam – the longer it takes for it to cool. The molded EPS should be kept at room temperature (about 70F)

 

Tai Shyan Machinery Industrial Co., Ltd. was established in 1978. They specialized in whole machinery equipment and designs for EPS, EPP fully automatic molding machinery and essential accessories for machines. As a professional EPS / EPP automation solution provider, Tai Shyan is just there for you.

 

 

Article Source: http://EzineArticles.com/8170518

Application of Cold Roll Forming Machine

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Do You Know What A Cold Roll Forming Machine Is?

Cold Roll Forming Machine is a kind of machinery which uses the cold roll forming technology to roll forming the sheet, strip and sheet metal and so on. It makes the metal panel to form a special section bar, so the use of roll forming machine is very wide.

 

Cold-formed steel products which is produced by cold roll forming machine, is a kind of structural member is more important. It is widely used in construction, automotive, electronics and shipbuilding, machinery and other industries. In some areas, it is so popular as it can replace steel, play the effect of saving energy and resources, it is developing more and more rapidly, technology is being improved.

 

The cold roll forming machine have many types, like the gutter roll forming machine, door frame roll forming machine, downspout roll forming machine, garage door roll forming machine, solar photovoltaic support roll forming machine, heavy truck fender roll forming machine, rack column roll forming machine, cable bridge roll forming machine, carriage board roll forming machine, and so on.

 

Well, Where to Find The Reliable Cold Roll Forming Machine Manufacturer?

 

I think Yunsing Industrial that would be your best choice! Yunsing has accumulated more than 40 years of experience specializing in manufacturing steel plate automatic cold roll forming machines with advanced technologies and superior quality products, such as roofing and wall cladding, corrugated sheets, stepped tile roofing, floor decking, C-Purlin, rolling shutters and door frames.

 

If you need more information about cold roll forming machine series, please do not hesitate to visit Yunsing. They will supply you the best quality roll forming machines and services.

 

 

Article Source: https://www.linkedin.com/pulse/application-cold-roll-forming-machine-lolita-wang

Casters for Specific Applications: How and When To Choose Office Chair Caster Wheels

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The good news is that you can find casters for office chairs, desks and even workstations to keep things rolling easily.

 

Your employees would love to use chairs and desks that are mobile for the right reasons. If you select the right caster, your office chairs can roll and move around easily and more importantly, quietly without the need of ugly plastic mats.

 

It is also seen that choosing the right office casters can improve workplace ergonomics. This means you can select the right casters and indirectly keep your staff healthy and happy.

 

How Can Technically Advance Office Chair Caster Wheels Positively Affect Your Workplace?

 

Modern office furniture caster wheels can roll and swivel even on carpeted floors. The innovative bearing and wheel design makes it easy for chairs, desks and other office equipment to move over carpeted areas or on floors with rugs with ease.

 

This easy movement makes work more comfortable for employees who have to sit in chairs for extended periods. What’s more interesting to note here is that ease of movement translates into increased productivity and efficiency. Not to forget, you can reduce workplace overexertion.

 

Yes, Office Casters Can Be Quiet!

 

Perhaps the last things you would want in your office are noisy wheels and unwanted squeaky sounds of rolling office chairs and equipment. You can now find ‘practically’ silent office chair casters that can maintain the mobility of your office furniture and equipment without adding to the noise. Remember, ‘silent’ office casters can help your employees stay focused on the task and help them become more productive.

 

No Need for Ugly Carpets

 

With innovative materials used in office chair casters, there will no longer be need for unattractive plastic mats or carpets in the office. “Non marking” casters do not mark or strain the tiles and at the same time, extend the life of your carpet or rug.

 

Because office casters can now be easily replaced, investing in high quality office casters make more financial sense than ever. After all, you no longer have to add the inconvenience of buying new office chairs to your budget.

 

How to Replace Your Office Chair Casters

 

Well, buying new chairs just because your office chair wheel breaks is history now. Chair casters can be easily replaced and replacement casters are affordable as well.

 

Before you proceed with the replacement, make sure:

 

  • The replacement caster wheels you choose match the stem and wheel of your existing caster.
  • Caster wheel you choose for replacement should show best performance on your office floor.

 

Remember that chair casters are differentiated by their diameter. Larger wheels can make your chair sit higher. On the other hand, caster with smaller wheels can lower your chair.

 

Hard wheel casters are designed for use on carpeted floors. Soft wheel casters can be used on hard floors (wooden and tile surfaces).

 

Where Can You Find Quality Caster Wheel Replacement?

 

About this question, I can recommend a manufacturer to you – that’s ENJOYING GO Co., Ltd.

 

ENJOY is a professional caster wheel manufacturer in Taiwan. They offer kinds of caster wheels for office chairs and home furniture. If you need more information about caster wheels, try to visit ENJOY and get more selections of PU caster series.

 

 

Article Source: http://casterwheelguide.com/selecting-caster-wheels/

Precision Metal Stamping – How to Find a Qualified Supplier

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When selecting a supplier for stamped metal components with tight tolerances and critical features, there are some important factors that you should consider. Although important, unit cost should not be the sole deciding factor as explained below. Making a purchasing decision only based on quoted cost may result in overall dissatisfaction with a supplier’s performance, or even in a disastrous situation. The following ten factors should be taken into account when selecting a precision metal stamping supplier:

 

  1. Years of Experience
  2. Ability to Design Precision Stamping Dies
  3. Ability to Build and Troubleshoot Precision Stamping Dies
  4. Process Control
  5. A Die Maintenance Program
  6. Delivery Time Frame
  7. Running Speed
  8. Spare Tooling
  9. “Attention to Detail”
  10. The Ability to Perform Secondary Operations

 

First and foremost, it is essential to select a precision metal stamping supplier who has significant experience. Make sure that you take the time to understand how long a supplier has been in business, and to become familiar with the types of components that they have stamped in the past. It is important to know if a supplier’s expertise is in flat parts, formed parts, or both. Take the time to learn about the supplier’s experience in working with difficult, intricate parts, their ability to hold tight tolerances, and their ability to achieve complex bends (on formed parts).

 

The second and third factors to consider are whether the supplier has experience in designing, and building precision metal stampings. A supplier who can design and build precision metal stamping dies will inevitably be much more qualified to succeed in stamping your components than a supplier without these capabilities. A supplier who designs precision metal stamping dies understands the importance of having certain features and stations in a die which will result in the highest efficiency and quality during the stamping operation. A supplier who is adept at building and developing precision metal stamping dies has the added benefit of being able to troubleshoot any unplanned stamping issues.

 

The fourth factor to consider when selecting a precision metal stamping supplier is the supplier’s capability in the area of process control. If a supplier is ISO-certified, this provides a certain layer of insurance that control processes are in place. Understanding how a precision metal stamping supplier creates and works with control plans is important. Visiting the supplier and seeing their Quality system in operation is probably the best way to evaluate a supplier’s attention to process control. Determining the role of the Quality technician at a supplier will speak volumes to assuring that a job will end up successful. Evaluating a supplier’s investment in inspection equipment is an additional indicator of potential success.

 

Next, it is beneficial to determine if a precision metal stamping supplier offers a die maintenance program. This will result in maximizing the life of the die and will optimize your total life cycle cost for your stamped component. A good die maintenance program will address die and die component inspection, synchronization and adjustment of die/press/peripheral equipment, proper assembly/disassembly techniques, die component replacement schedules, etc.

 

Sixth, a precision metal stamping supplier’s delivery track record will reveal whether or not a supplier has the proper systems in place to not only quote a good delivery time frame, but actually to deliver on-time. If a precision metal stamping supplier is not officially tracking their on-time delivery performance, then it is better to select another supplier.

 

The precision metal stamping supplier’s ability to achieve certain running speeds is the seventh factor that should be considered. An experienced supplier will be able to run at faster speeds (while maintaining quality), and consequently provide the most optimized pricing.

 

The eighth factor to consider is spare tooling. Often overlooked, a discussion of a spare tooling list is critical to a precision metal stamping job. A good supplier will suggest discussing spare tooling up front in order to maximize the likelihood of success for a stamping campaign. Make sure that this cost is taken into account when judging one quote against another. Require all bidders to address spare tooling. If a precision metal stamping supplier has the added capability of being able to manufacture its own spare tooling, this is an obvious benefit.

 

Next, it is important to determine if a precision metal stamping supplier is one that will pay close attention to the “fine details” of a job. In addition to looking at the quality of a supplier’s previous sample parts, try to determine if a supplier is concerned about fine details by noticing their behavior early in the quoting process. A supplier who asks a lot of questions pertaining to part quality, key features, and tolerances is typically one who will likely over-deliver in the area of “attention to detail”.

 

Lastly, a precision metal stamping supplier who has the added capability of performing secondary operations is invaluable in area of overall supply chain logistics. A supplier that can perform any of the following additional operations will typically result in significant savings for your company: cleaning, electroplating, packaging, product assembly, custom automation (in conjunction with the stamping operation), and machine vision inspection.

 

Coolmosa is a 20-year-experience stamping parts company, offering metal stamping parts, metal parts custom stamping, precision stamping parts for cooler field. Have ISO 9002 approval, they provide the most comprehensive stamping parts solutions in the industry. For more metal stamping parts information, please feel free to send inquiry to Coolmosa Technology Co., Ltd.

 

With a long reputation as a chief manufacturer of stamping parts, Coolmosa will be your right choice on your business needs.

 

 

Article Source: http://EzineArticles.com/3597384

Custom Key Chains and Why They Are Ideal Promotional Gifts

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In the current economic market, spending money on promotional items may seem like an unnecessary thing to do but the truth is that giving out promotional products can help your business grow. Giving out promotional products like personalized promotion key chains is a creative, effective marketing campaign and advertising method which will give your company more exposure to public at large and your target customer group. This type of advertising a company’s product through promotional products and items is fast gaining popularity, as it has many advantages over traditional methods of advertising a company’s products through the print media or electronic media.

 

Giving out promotional products bearing the company’s name or logo, such as custom made key chains is a great advertising method. It is always nice to get a free gift and people or your clients will be using it every day, it is tangible – they can touch and feel it, and unlike an advertisement on TV which they will just see for a few seconds and forget about it, the potential clients and his colleagues and friends will see the company’s name or logo frequently enough, so as to not forget the name or logo of the company.

 

Some of the other factors that make promotional advertisements such a good idea would be the ability to attract traffic. Whenever a company sets up a corporate event or trade show, the stalls which offer free promotional items like custom key chains have the highest traffic. If the promotional products being handed out are unique, useful for daily life or fun to use, the better it is as it will give the company’s name or logo more exposure. Another advantage for handing out personalized promotional products is that it attracts or increases incoming referrals. One of the main reasons for that is when people enjoy using a promotional product, they tell their friends, families and colleagues about the product and the company’s name. In this way, many other people will be acquainted with the company’s name and it will serve as reminders when they go shopping or need the services of that company. Promotional items like custom key chains, log T-shirts and promotional caps have become very popular.

 

Another advantage of giving out personalized promotional gifts like custom key chains, pens, T-shirts, travel mugs, caps, stress balls etc. beating the company’s name or log is that it increases employee morale and helps employees to bond and create team spirit. Small things like this can help employees of a company to identify themselves with the company and make them feel that they are an important part of the company and increases loyalty to the company.

 

Among various promotional products that a company can give away, custom key chains have a lot of benefits. Unlike business cars or advertisements on TV, promotional key chains are used by the potential customer every day and each time they use the key chain, which is probably many times a day, they will always be reminded of your company. There is also a concept called gift theory, that when you give a promotional product for free to a potential client, next time the requires your products or services, on the back of his mind, he feels some sense that he is obliged to hire the services of your company again. Another advantage of using personalized promotion key chains, even though there are so many other promotional gift ideas, is that they are cost effective and can be made in a variety of styles and designs. Since they are not expensive, especially when they are ordered in bulk, they can just be given to any person that has come in to contact with your company or its employees.

 

To summarize, handing out promotional gifts is a great way to advertise about the products and services that your company provides. Custom key chains are ideal promotional gifts as they are used daily by potential clients, are cost effective and can be made into a variety of styles and designs.

 

To custom your own key chains, I recommend that you can visit the website of Tech Arts International Co., Ltd.. This company is a professional manufacturer of varied custom lapel pin products. Its custom lapel pin and key chain have reasonable price and best quality, welcome to contact with Tech Arts for more custom lapel pins and key chains information.

 

 

Article Source: https://www.slideshare.net/keychains/custom-key-chains-and-why-they-are-ideal-promotional-gifts

5 Major Advantages to Using Plastic Injection Molding for the Manufacturing of Parts

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Plastic injection molding is extremely versatile method of producing parts and products. It is one of the preferred methods for manufacturing parts because it has multiple advantages over other methods of plastic molding. Not only is plastic injection molding simpler and more reliable, it is also extremely efficient. You should have no doubts about using this method to manufacture parts.

 

Here are 5 major advantages of using injection molding for manufacturing plastic parts and components.

 

  1. Detailed Features and Complex Geometry

 

The injection molds are subjected to extremely high pressure. As a result the plastic within the molds is pressed harder against the mold compared to any other molding process. Due to this excessively high pressure, it is possible to add a large amount of details into the design of the part.

 

Furthermore, due to high pressure during the molding process, complex and intricate shapes can easily be designed and manufactured which otherwise would have been too complicated and expensive to manufacture.

 

  1. High Efficiency

 

Once the injection molds have been designed to the customer’s specifications and the presses pre-programmed, the actual molding process is very quick compared to other methods of molding. Plastic injection molding process hardly takes times and this allows more parts to be manufactured from a single mold. The high production output rate makes plastic injection molding more cost effective and efficient.

 

  1. Enhanced Strength

 

In plastic injection molding, it is possible to use fillers in the injection molds. These filler reduce the density of the plastic while it being molded and also help in adding greater strength to the part after it has been molded. In fields where parts need to be strong and durable, plastic injection has an option that other molding processes do not offer.

 

  1. Ability to Use Multiple Plastic Types Simultaneously

 

One of the major advantages of using plastic injection molding for manufacturing parts is the ability to use different types of plastic simultaneously. This can be done with the help of co-injection molding, which takes away the worry about using a specific type of plastic.

 

  1. Automation to Save Manufacturing Costs

 

Plastic injection molding is an automated process. A majority of the injection molding process is performed by machines and robotics which a sole operator can control and manage. Automation helps to reduce manufacturing costs, as the overheads are significantly reduced. Furthermore, with reduced labor force the overall cost of manufacturing the parts is reduced and this cost saving can easily be passed on to the customer.

 

Furthermore, automation allows for making precise and accurate injection molds. Computer aided design (CAD) and computer aided manufacturing (CAM) allow close tolerances during the making of the molds.

 

The Bottom Line

 

Using injection molding also ensures the parts manufactured hardly require any work after the production. This is because the parts have more or less a finished appearance after they are ejected from the injection molds.

 

Today, plastic injection molding is an environment-friendly process. The scrap plastic generated during the production process is reground and re-used. Hence, the process generates very little waste.

 

Learn more information about plastic injection molding or injection moulding products, try to visit Shin Fang Plastic Industrial. The company can provide a variety of plastic bag accessories for customers. Feel free to contact with Shin Fang.

 

Article Source: http://nanomoldcoating.com/5-major-advantages-to-using-plastic-injection-molding-for-the-manufacturing-of-parts/

How Do You Choose an O Ring?

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When installing a pressure sensor, especially on units with parallel threads, such as BSP, UNF etc, it is necessary to use an O ring on the external face of the hexagon mounting face to ensure complete sealing.

 

It is important to choose the right sealing gasket to give long-life performance. Several factors must be taken into consideration when you choose an O ring, including compatibility with the fluid under test, the temperature range of the application, mounting torque, size, pressure ranges etc.

 

There are many types of seals on the market, from gaskets in copper, lead, Viton, nitrile, Teflon etc. The following are some of the more commonly used seals.

 

Viton O Rings

Viton O rings are oil resistant and are capable of operating in temperatures between -15 and +200°C.

 

Teflon O Rings

Teflon O rings have similar properties to Viton, but are used for pressure ranges above 500bar (7000psi).

 

Dowty Bonded O Rings

Dowty bonded O rings are versatile but relatively expensive. They comprise a metal annulus to which a medium nitrile elastomeric ring of trapezoidal section is bonded. Dowty bonded O rings are commonly used with hydraulic fluids or mineral-based engine lubricating oils. Temperature range is -30 to +110°C, and maximum pressure is 1500bar.

 

Nitrile O Rings

Versatile and economical, nitrile O rings are suitable for temperatures from -40 to +110°C, and are resistant to mineral hydraulic oils, greases and certain chemicals. Nitrile O rings are available in imperial and metric sizes.

 

In addition there are now many different adapter ranges available that have built-in seals. Alternatively there is the option of choosing a thread that self-seals or has a cone sealing arrangement, such as Swagelock, -3 fitting etc.

 

Need more information about O rings? Do not hesitate to visit the professional manufacturer of vehicle and mechanical oil seals – Lian Yu Oil Seal Enterprise Co., Ltd.

 

You can find high quality oil seals, rubber parts, bonded seals, swivel kits, o rings, and much more products at Lian Yu. Feel free to send inquiry or contact them directly to get further details.

 

 

Article Source: https://appmeas.co.uk/resources/pressure-measurement-notes/how-do-you-choose-an-o-ring/

Global Water Purifier Market 2017 : Dynamics, Scope, Competition, Analysis, Value

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The competitive framework study Global Water Purifier Market is an in-depth study that covers all the aspects of the industry. The research report delivers key insights verified by key industry participants. These include market-leading participants, key clients and consumers, and product types and applications.

 

As per the world economic growth, the Water Purifier market size is estimated from 8310 million $ in 2013 to 10550 million $ in 2016 .The Water Purifier Market is expected to exceed more than US$ 13140 million by 2021 at a CAGR of 8.28% in the given forecast period.

 

This Water Purifier Market report provides:

  1. An overview of the global market for Global Water Purifier Market and related technologies.
  2. Analyses of global market trends, with data from 2013, estimates for 2014 and 2016, and projections of CAGR through 2021.
  3. Forecast horizon for geographical segments (regions) as well as sub-areas will expand at the most elevated rate.
  4. Primary strategies for development, and the demand for new products and new applications.
  5. Pricing Strategy, Brand Strategy, Target Clients.
  6. Competitive landscaping of major market players.

 

More information regarding this report at Market Research Store

 

Well, maybe you also want to understand where you can find quality and reliable water purifiers. Here, I recommend a manufacturer to you – that’s TRIWIN Watertec Co., Ltd.

 

Taiwan Recommended RO Water Purifier Manufacturer – TRIWIN Watertec

 

Triwin Watertec is a professional manufacturer of water treatment equipment. They mainly offer a full line of RO systems, water filtration system, water coolers, POU water dispensers, accessories/components and so on.

 

With the advance technology and rich experience, Triwin Watertec has verified by BV (Bureau Veritas) on-site checking & inspection and to be qualified as an assessed supplier of Water Purifiers. They always fulfill the needs for top quality products and equipment in the water treatment industry worldwide.

 

If you have any water treatment question or Water Purifiers requirements, please feel free to visit Triwin Watertec: www.triwinwater.com

 

 

Article Source: https://2bnews.wordpress.com/2018/01/12/global-water-purifier-market-2017-dynamics-scope-competition-analysis-value/

Electric Chain Hoists – Choose The Right One For Your Industry

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Electric chain hoists are used in industry and related areas to lift heavy objects, equipment, or machinery. By using electric chain hoists, the task is done faster and easily with less risk involved. They are much easier and sophisticated to use than manual chain hoists. Moreover, they are more convenient and can achieve the task more efficiently than manual chain-hoists. Electric chain hoists are available in a variety of sizes and for a variety of lifting equipment depending upon the load to be lifted.

 

These days, it is not hard for one to find the hoists that you require for your type of industry. These hoists are now manufactured by reputed manufacturers in Taiwan as well as abroad. Many online dealers also stock reputed brands, so you need to know the exact specifications that you require for lifting the required loads.

 

Nowadays, hoists have a variety of features and come with a range of price tags. Depending upon the type of the hoist you require, it is essential you are away of the safety parameters and whether the hoist will stand up to the rigorous operational requirements. Therefore, you should be knowledgeable about the operations requirements of the hoist you propose you wish to purchase. At the same time, you should be aware of the quality standards that are applicable to electric chain hoists. Do not go for a cheaper hoist if you are in a position to purchase a more expensive one. A cheap hoist may leave out the safety and quality parameters essential under various rules, laws, and regulations.

 

A manual chain can lift up a lighter load, but an electric chain hoist can be used to lift heavier loads. Nevertheless, they should not be used for lifting loads beyond their lifting capacity. Therefore, it is always advisable to check the rated capacity of the electric chain hoist before actually buying it. At times, there are circumstances which require continuous operation of the hoist, so be sure that the operators do not exceed the rated capacity. For example, if the rated capacity is 30 minutes on and 30 minutes off, you cannot run the hoist more than this capacity.

 

A torque limiting device on the hoist will prevent accidental or intentional overload. Also check for safety features like upper and lower limit switches and low voltage controls. A stop button can take care of emergency situations. A variety of speed capacities are available so you can make the right choice while purchasing a hoist. There will be a number of manufacturers providing you with the same types or hoists.

 

They are also available in different speed capacities and speeds to be able to endure a variety of handling procedures. Since there are many manufacturers offering various types of hoists, you need to know exactly what you are going to buy. Therefore, while buying an electric chain hoist, do not buy the ones that seem cheap or spurious for you, or do not even buy the ones that violate safety norms. Train your staff adequately on the use of electric chain hoists and always read the operation manual before installation and operation.

 

For quality electric chain hoists for use in various industries, try to visit Cheng Day: www.chengday.com

 

With 44-year experience of electric chain hoist manufacturing in Taiwan, Cheng Day exactly realizes what customers need and offers custom-made design. They consistently improve and upgrades products quality. Moreover, Cheng Day has patents for parts in electric chain hoists; they also create new models every year to extend usage.

 

Cheng Day electric chain hoists are proudly manufactured in Taiwan. More details, please feel free to contact Cheng Day Machinery Works Co., Ltd.

 

 

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