Porduct Name: Injection machine barrel screw [back]
Product characteristics：
1. 38CrMOAL nitriding index：Hv≥900 Nitriding depth：0.5-0.8mm Nitriding brittleness：≤Grade II
2. HK series centrifugal pouring: base material（42CrMo）Alloy（HKA、HK1、HK5、HK6、HK7）Hardness HRC50-62, thickness 1.5-3.0mm（single edge）
3. Stainless steel：quenching, quenching hardness HRC55±2
4. 42CrMo electroplating: mid-frequency quenching+ electroplating; quenching and tempering+ electroplating
Chrome plating hardness：≥HV800, thickness 0.03-0.05mm, roughness Ra0.2um
5. Screw gap PTA：base material（38CrMOAL、42CrMo、SKD61）, alloy（Nr60）alloy layer thickness≥2mm, hardness HRC52-58
6. Sprayed carbon tungsten HY series：base material（42CrMo）, alloy（100% carbon tungsten、Co-Cr carbon tungsten、nickel-chromium carbide）, hardness HRC58-68
7. HPT series full hard screw：HPT1、HPT2、HPT3、HPT5, wear resistance, corrosion resistance, high temperature resistance, pressure-resistance and high speed