Injection Molding Supply, Mold-Building, and Maintenance

Injection molding is the name of a production process of making parts using thermoplastic or thermosetting plastic or from metal and glass. These raw materials are dumped into a heated barrel, where all materials are combined and put into a mold, where it becomes solid according to the shape of the mold.

Injection molding process are using to make many objects like bottle caps, single piece tables and chairs, storage containers, and many objects for daily usage.

There are benefits to injection molding, like minimal raw material wastage, high amount of production, cheap labor costs, and there is reduced necessity to finish the end product after production. One must also list some drawbacks in injection molding - expensive machinery is initially needed, there are high running costs, and there is a requirement to design appropriate molds.

Injection molding supply can be done by a variety of distributors and providers. For the maintenance of all Injection molding machinery, visit www.heattechsystems.com. Virtually all products related to injection molding and all spare parts for maintenance are available at Heat Tech Systems Inc. The supply of spare parts for the above production process must be reliable and fast in order to maintain the high efficiency and the fast pace of production.

Dies or molds are used in the process of producing plastic parts. Normally molds are made of hardened steel, aluminum alloy or beryllium copper alloy. Steel molds are costly to build, but their longevity is impressive. The hardness is normally 38-45 in the Rockwell C-Scale, for steel molds. The mold consists of two main parts, the injection mold and the ejector mold.

Aluminum molds are typically cheaper to make but cannot create as many parts before needing replacement. Beryllium copper is nowadays using in the injection molding production for faster heat removal from the end product.

All polymers, also called resins, including all thermoplastics, thermosets, and elastomers, can be used in this process. There are over 18,000 different materials available for injection molding, and that list is growing at a fast pace.

There are some parts commonly required for the repair of injection molding process machinery. The four parts related to injection molding are heater bands, transducers, hydraulics and filtration. All the equipment required for injection molding repair can be purchased from Heat Tech systems Inc. PVC material hose, barrel blankets, thermocouples, oil filters, mold shields, chutes and drum covers, which are required for periodic maintenance and repair, are readily available.

Shopping around for an Injection Molding Supplier

Looking for the best injection molding companies in the industry does not have to be a daunting task. Fortunately, there are many suppliers available online that a company representative can choose from. However, here is a list of things that one can look for in companies like Heat Tech Systems.

One of the first things that these representatives should look for in a supply company is a way to evaluate the differences between each plastic injection molding company (i.e. Heat Tech Systems vs. competitors). For instance, the representative should make a 3D Model of the plastic component that the company makes. The representative should also request an engineering drawing of this same mold as well. These drafts should contain a surface textures and draft angles. In addition to these 3D models and engineering drawings, it is also essential to specify other features, like the maximum allowable flash.

The next step in this process is to look for companies with affordable pricing, since most companies will be looking to increase bottom line profits by reducing the company’s expenses. However, the company should not compromise quality for the lower cost estimates. For instance, even though some overseas companies in China and Korea can offer lower prices per piece, there are advantages that override the low cost. Sometimes when a company chooses a supplier that is in the United States that get better services. Therefore, by dealing with suppliers within the states, the company can avoid unnecessary and expensive delays. The price of suppliers based on the quality of product they can supply is only one of the factors that should be considered when making a final decision (i.e. the ultimate cost per molded part can easily offset any delays from the supplier).

Another way to choosing an injection molding supplier is to base the cost on a specific project. By choosing suppliers based on a specific project, the company’s representative can find the best prices for that project and they can shop around knowing exactly what is needed. When the company shops around, they can also negotiate lower prices by having between the best suppliers in the industry compete for their business.

In addition to choosing a supplier based on a specific kind of project, the representative should also research the history of the company, along with their capabilities. For instance, the company’s representative will need to know how long the supplier has been in business as well as what industries that they have molded parts for.

Buy Injection Molding Equipment from Heat Tech Systems

Want to buy injection molding heaters for barrel or tooling from a reliable online source that has been in the business for decades? Heat Tech Systems will meet your requirements. Be it mica bands, mineral bands or ceramic bands, this reputed firm has the full range of heaters. You can rely on Heat Tech Systems not only for band heaters, but also for coil and cartridge heaters, at the best prices in the whole of US. By paying a visit to their website you can easily make out the difference between them and others operating in the industry over the past two decades. Heat Tech Systems is easily the forerunner in the field. Place your orders for band heaters, coil heaters and cartridge heaters with the most trusted source in the entire country.

When it comes to band heaters, Heat Tech Systems will make mica bands, mineral bands or ceramic bands according to your choice, in 1 or 2 pieces and in varying voltages of 120V, 240V and 480V. You can also look to this source for different sizes and styles to suit your needs.

With regards to coil heaters that are made from annealed piece of metal bent with the help of a mandrel bender, Heat Tech Systems provides you a variety of options in terms of both size and style. If you’re looking for a different standard exit style, they can do it for you and have it to your doorstep in no time. For those in search of high watt cartridge heaters, this is definitely the ideal place to find your favorite products made in varying lengths of hot and cold sections, bands, and lead termination. Nozzle bands are made available at very low prices here.

This makes it clear that Heat Tech Systems is one place where you can find a full range of injection molding maintenance items that are second to none in quality. For superior quality injection molding and extrusion screws, barrels and screw tip assemblies guarantee, the price that you pay is low. That gives them the lead over their competitors in the plastic industry. So, whenever you are need of heater bands for your barrels and nozzles, the one and only name to bear in mind is Heat Tech Systems. From all of these examples, it is clear to see why they have been the market leaders in the US now for decades.

Major Components of Cartridge Heaters

The cartridge heater is a cylindrical shaped industrial heater used in the injection molding process. They are fabricated from annealed pieces of metal and come with different voltage options. There are seven major components in cartridge heaters. They are heating coil, sheath, insulation, sealant, lead wire type, termination, and watt density.

The heating coil is the most important component in a heater because this is where the electrical load takes place. Nickel-chromium metal alloy is used for fabricating the heating coil and the wires are wound around a thick ceramic core. The number of spirals of the wire varies depending on the required watt density. An alternating current source is attached to the heating coil. When the power supply is switched on, the current flows through the wire and heats up the sheath of the heater. Stainless steel or metal alloys are used for manufacturing the sheath. Stainless steel is used for highly acidic environments and metal alloys like Incoloy are used for corrosive environments.

The coils are insulated in order to prevent short-circuits. A short-circuit can be disastrous and can lead to major equipment failure. Some advanced injection molding systems use a ground fault interrupting circuit for added safety. The Nichrome coil is inserted into the sheath and filled with magnesium oxide. A sealant is applied in order to prevent the coil from coming out. The sealant also prevents moisture and contamination inside the heater. The heaters can be exposed to high temperatures, and pressures.

It is very important for engineers to terminate the lead wires in order to prevent wire damage. Braided metal or metal conduits are used to protect the wires. The type of lead wire used varies depending on the design of the injection molding machines. Fiberglass and silicone rubber is commonly used because it can withstand rough temperature conditions.

A wide range of heater bands for injection molding systems are available in the market today and they can be easily bought online. Some of the popular and bestselling ones include Mica bands, Ceramic bands, and Mineral insulated bands. Always go for heaters that have high watt density. A higher watt density ensures better control and quicker response over the process. These industrial heaters can also be customized depending on application requirements. Make sure you buy branded heaters from trustworthy dealers. They are not only reliable but also durable.

Cartridge heaters play a very important role in the manufacturing process and have become an indispensable part of the injection molding process.

Choose Quality Nissei Screw Tip Assemblies

For those in the injection molding industry, the choice of screw tips they make really make a lot of difference to their production, because inferior tips made from sub-standard materials - particularly those shipped in from outside of the U.S - can jeopardize their operations and leave them in the lurch. In sharp contrast, those injection molders depending on a reliable online source such as Heat Tech Systems Inc. stand to benefit immensely because what they get is the best quality products available on the market.

Not only do you get to find all molding machine brands of injection molding screws, barrels and screw tip assemblies at Heat Tech Systems, but all of them are of the highest quality thereby assuring you the greatest value for your investment. After all, smart injection molders who make their purchases from here know well in hand that the company only makes use of CPM 9V material for manufacturing purposes. So if you're looking for top quality supplies such as Nissei screw tip assemblies, there is no need to look beyond Heat Tech Systems because they make available a complete range of high quality products coming from all front line manufacturers.

Whether you want 3-piece or 4-piece Nissei screw tip assemblies, or locking ring or free flow types, there is no need to search beyond Heat Tech Systems because you can meet your requirements in great style here. The secret behind Heat Tech Systems' success is their ability to make available all top quality products from world-renowned manufacturers such as Sumitomo, Engel and Toshiba, in addition to Nissei, and still manage to stay well ahead of their competitors in terms of price.

So be sure that you are selecting the right type of screw tip design by visiting Heat Tech Systems, because there are others who take you the wrong way by supplying products that skip OEM specifications. When you place orders with Heat Tech Systems Inc. for your screw tips assemblies you know what you get are products made of CPM 9V material unlike some distributors who utilize poor quality stuff to dupe customers.

In summary, if you really value quality and your company’s bottom line, there cannot be a better place than Heat Tech Systems to buy all types of injection molding screws, barrels and screw tip assemblies. It’s the best choice for the continued success of your business, so choose quality over all other factors.

Major Injection Molding Machine Components

Major components of an injection molding machine that determines the quality of the product molded by the machine are the injection screws, injection barrels and the screw tips.

Barrels possess the properties of corrosion resistant and wear resistant in order to withstand the different temperature conditions, humidity and the abrasive nature of the different machining components. Molding barrels are used in a variety of molding machines including the plastic molding machines and the extruding machines.

Barrels are made out of hard materials such as nitride alloys and carbides. Due to this they would be able to handle a variety of resin that gets heated to high temperatures. In addition to these two materials, molding barrels are also made out of materials such as D2 and CPM. Among the different barrel materials, barrels made out of CPM materials lasts twice as longer as the nitride alloys.

Carbide material is the hardest material available for creating barrels. In addition to the carbide tool, it also comes impregnated with glass pieces. The life span of carbide material is twice than that of the CPM material. These carbide barrels are also called as bimetallic barrels. Among the different injection molding barrels, D2 barrels are the ones that are used for molding or extruding light parts and components. There are also cheaper barrels that are available to choose. But these barrels will not last longer.

Injection molding barrel screws are usually made out of materials such as tool steel, high carbon steel, high chrome steel and CPM abrasive material. All the type of molding screws undergo a process of surface treatment where in the hardness of the screws are enhanced considerably.

Some of the surface treatment processes that are used to increase the life span of the screws include Nitriding, Chrome plating and carbide coating. Carbide coating is useful in doubling the life of the CPM screws.

Screw tips are made out of materials such as tool steel and carbide tools such as CPM-9V and CPM-420V. While buying the screw tips, one has to be careful with the quality of the tips being supplied. There are some suppliers supplying duplicate screw tips that are manufactured in countries like China and India.

In order to ensure purchasing original and OEM injection molding barrels, screws and screw tips, one has to genuine and original accessory suppliers such as Heat Tech systems. Heat tech systems have been in the business of providing original injection molding accessories for a number of years.

Injection Molding Accessories, Process, and Buying Tips

Are you looking for quality injection molding accessories at reasonable prices? Look no further. Heat Tech Systems are one of the biggest stocking distributors for injection molding accessories. They sell a wide variety of branded products including injection molding barrels, tips assemblies, screws, mold cleaners, lubricants, rust preventives, mold releases, one shot loaders, heater bands, heaters, PVC material hose, ground wires, coil heaters, nozzle bands, drum covers, chutes, mold shields, industrial chillers, shooting pistons, mold cleaners, barrel blankets, purging compounds, thermocouples, extruder feed screws, toggle clamps, conveyors, portable chillers, grinder blades and oil filters.

Injection molding is an industrial technique that is used for producing spare parts from thermoplastic materials. The raw materials in this manufacturing process are mixed and heated in a large barrel. The ingredients are then forced into a mold cavity to get the final product. The product is usually conceived by an industrial engineer and molds are made either from aluminum or steel by the tool maker. Injection molding is frequently used by mechanical industries to fabricate a wide range of parts including car body panels, wire spools, automotive dashboards, musical instruments, bottle caps, furniture, storage containers and plastic products.

Cartridge heaters are fabricated from premium materials and can provide superior durability and high performance even under extreme temperatures. Heat Tech Systems supply both low watt density and high watt density heaters with durable stranded flexible leads that offer greater reliability and higher wattage per square inch. The cartridge heaters come with a compact refractory insulation and an even heat profile for faster heat transfers. The robust lead terminals, distributed wattage options, built-in thermocouples, swaged construction, welded end disc seals, and the numerous watt density options makes it a great product for industrial applications like plastic industry, packaging industry, hot runner bushings, sealing machinery, and shoe making industry.

Go for stainless steel cartridge heaters instead of aluminum. They are more resistant to oxidation and corrosion. A sheath watt density between 160W – 200W with a nominal bore would be more than sufficient. The heater specifications like overall length, lead type, heater size, voltage, diameter, wattage, and additional performance options like moisture resistance and temperature resistance are required before you can order one. Almost all heaters can be modified to fit custom applications. Injection molding offers many advantages including high production rates, low operation costs, reduced scrap losses, low labor costs, and it is a perfect choice for both small scale industries and factories.