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The screw is a precision - engineered component, typically made of high - strength alloy steel. It features a helical flight design. During the operation of the injection molding machine, the screw rotates to convey, compress, and mix the plastic material. In an extruder, it continuously pushes the molten plastic through the die. The pitch and diameter of the screw are carefully designed according to the specific application requirements. For example, a larger pitch is often used for materials that are easy to process, while a smaller pitch is suitable for more viscous plastics to ensure better mixing and pressure build - up.
Product Description
https://g-plasmc.en.made-in-china.com/product-list-1.html
***Sizes:
1. Diameter of screw: D12-D300mm
2. L/D ratio of screw: 10 - 26
***Grade available:
1. Standard grade: 38CrMoAlA + nitriding 96 hours
2. Bimetallic grade: 38CrMoAlA + bimetallic alloy
3. TC-A grade: Tungsten carbide 35%
4. TC-B grade: Tungsten carbide 25%
5. TC-C grade: Tungsten carbide 15%
***injection screw barrel and bimetallic injection screw and barrel
1)38CrMoALA(JIS SACM645)
2)42CrMo(JIS SCM440)
3)9Cr18MoV
4)CW6Mo5Cr4V2
5)Various high quality alloy steels,According to different usage, the choose for alloy is different, some require for abrasion-resistant while some require for corrsion-resistant. For standard, we have Fe-based, Ni-based,W2Calloy,Tunsten alloy etc for choice.
6)The foreign material we used as following:
*Germanysteel, GH113 ,2250 ,2842 ,1.8509 ,1.442 ,1.6582 ,1.6523 ,1.2080,1.4542,
*USA steel, P20,420,L6,H13,W110,D3,A2,D6,O1,S1,M35,8620,3115,K52440
*Sweden steel, 718S,718H,S136,S136H,STAVAX,ASP-23,ASP-30
*Australia Steel, M202,M300,W302,K460,W300,K900,K100,W321
*Hardness steel, YG6X,YG 6A,YG 6,YG8N,YG8,YG8C,YG11C,YG 15,YT5,YT14,YT30
*Japan Steel, SKT 4,YXM 4,YXM 42,SNC 815,SK -3,SKS 3,and etc.
