Common market with 45 steel screw, 40Cr steel (chrome), 38CrMoAIA nitriding steel, if your product is +fiberglass words. Chrome plating about three months later when will slowly fall off, chromatic aberration.Best selection nitriding of stainless steel screw can not do + glass fiber. generally non-special materials are used more ordinary screw, such as PC \ PMMA \ PA and other materials. screw compression zonemust be long. mutated form of the screw is generally used to produce crystalline plastic. lengthcompressed section of the molten material and the results are good. and cut small local temperature will not result. rocket head and screw head is also very important.
Double-alloy screw made of high quality material for the substrate SACM645 steel, threaded topwelding imported double-layer metal; bimetallic barrel made of high quality 38CrMoALA to the substrate,quenched; cylinder bore centrifugal casting doublet metal, dual alloy screw barrel: with wear, corrosion, high temperature, high pressure, for, lenses, transparent shell, cosmetic containers, transparent acrylic, nylon, PVC, PC, PPA, PPO, PPS, PA6T, LCP, ABS fire, Bakelite, PC + glass fiber, nylon + glass fiber,powder, ceramic powder, magnesium powder, iron, electric injection molding machines, users can also beprocessed to design customized product requirements.