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.
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