Material selection of alloy steel products: 38CRMOALA, quenching and tempering, qualitative, nitriding, grinding and other processes, with high wear resistance, corrosion resistance and so on. Suitable for PP, PE, PVC, ABS, PBT, PET, PC, PA, PPS, acrylic, bakelite and other plastic injection molding.
1 Specification
250~32000KN Clamping force
30~25000g Injection volume
Screw diameter：Φ20~Φ140
Screw can choose a different screw head, the barrel can choose to respond to the nozzle.
Screw compression ratio can be based on different products and different formulations to design
2 Substrate material
1) 38CrMoAlA(JIS SACM645)
2) 42CrMo(AISI 4140)
3) 4Cr5MoSi V1 (JIS SKD-61)
3. Treatment Process
Quenched and tempered, qualitative, nitriding treatment.
4 Technical Parameters
Nitriding depth: 0.50mm-0.80mm
Nitriding hardness: 850-1000HV
Nitriding brittle: ≤ 1级
Surface roughness: Ra 0.4
Screw straightness: 0.015mm
