A 级全牙碳化钨合金螺杆
A -level full-tooth tungsten carbide alloy screw

加工范围：￠16mm-￠300mm  
Processing range: ¢ 16mm-¢ 300mm

原料母材：SKD61、42CMO、
HTP.Raw base material: SKD61, 42CMO, HTP

材料调制时间：48小时，调质硬度HRC30℃

Material modulation time: Modulation hardness of HRC30°C for 48 hours

合金硬度：HRC70-72℃左右
Alloy hardness: about HRC70-72°C

合金成份：Ni+Co+Cr+B+Wc（碳化钨合金粉末）
Alloy composition: Ni + Co + Cr + B,Wc (tungsten carbide alloy powder)

合金层厚度：0.15-0.5   
Thickness of alloy layer is 0.15-0.5

螺杆直线度：0.015mm/m  
Screw straightness: 0.015mm / m

表面光洁度：Ra0.6um    
Surface finish: Ra0.6um

适用于生产塑胶类：腐蚀性大、磨损大含添加剂为40%-60%加磁粉、铁粉、石粉、LCP、PA、PC、PBT、PP、PET、PA66、PA666、PEK及无卤料（专用）

In the production of plastic: corrosion, wear big-containing additives of 40% -60% of magnetic powder, iron powder, powder, LCP, PA, the PC, of PBT, PP, PET,, PA66, PA666, PEK and halogen-free material for only