The commonly used Extruder Screw on the market are No.4 […]
The commonly used Extruder Screw on the market are No.45 steel, 40Cr steel (chrome plated), and 38CrMoAIA nitrided steel. If your product is +glass. When chrome plating is applied, it will gradually fall off after about 3 months, causing a color difference. The best choice for nitriding. Stainless steel screw can not do + glass fiber.
General non-special materials are generally more common screws. Such as PC \ PMMA \ PA and other materials. The compression section of the screw must be long. Mutant screws are generally used to produce crystalline plastics. The long compression section melts and the effect is good. And cutting small will not cause the local temperature to be too high. And the head of the screw head is also very important.
Double alloy screw barrel material adopts high-quality SACM645 alloy steel as base material, and the top of the thread is welded and welded with double metal layer; the double metal material barrel adopts high-quality 38CrMoALA as the base material and undergoes quenching and tempering; the inner hole of the barrel is centrifugally casted with double metal, Double alloy screw barrel: wear-resistant, corrosion-resistant, high-temperature resistant, high-pressure resistant, suitable for lens, transparent shell, cosmetic containers, transparent acrylic, nylon, PVC, PC, PPA, PPO, PPS, PA6T, LCP, ABS fireproof, Bakelite, PC + glass fiber, nylon + glass fiber, magnetic powder, ceramic powder, aluminum magnesium powder, iron powder, electric injection molding machine, etc., can also be customized according to the requirements of the user processing products.