产品规格:
Product Specifications
PX-φ62~200
长径比 L/D:18~25
螺杆压缩比根据不同原料及不同产品进行设计
Screw compression ratio according to different raw materials and products design
技术指标:
Technical Index
调质硬度 Tempering hardness:HV≥290
氮化硬度 Nitrding hardness:HV950~1000
氮化深度 Nitrding depth:0.45~0.7mm
表面粗糙度 Surface roughness:Ra0.4
螺杆直线度Screw strightness:0.015mm
氮化后表面镀铬硬度Chrome hardness:≥900HV
镀铬厚度 Chrome thickness:0.05~0.10mm
双合金硬度 Bimetalic hardness:60-70
合金厚度Alloy depth:0.8~2.0mm
