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B级全牙镍基合金螺杆 B-level full-tooth nickel-based alloy screw 加工范围：￠22mm-￠300mm Processing range: ￠ 22mm-￠ 300mm 原料母材：SKD11、42CMO Raw base material: SKD11,42CMO 材料调制时间：48小时，调质硬度HRC30℃ Modulation hardness of HRC30°C for 48 hours 合金硬度：HRC62-65℃左右 alloy hardness: about 62-65°C in HRC 合金成份：Fe+Ni+Cu+Mo+Cr（镍基合金粉末） Alloy composition: Fe + Ni + Cu + Mo + Cr (nickel-based alloypowder) 合金层厚度：0.8-2.5 thickness of alloy layer is 0.8 - 2.5 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、磨损大含玻纤量为25%-45%，LCP、PA、PC、PBT、PP、PET、PA66、PA666、PEK及无卤料（专用）. In the production of plastic: corrosion, wear and containing glassfiber content of 25% -45%, LCP, PA, PC, PBT, PP, PET, PA66, PA666,PEK and halogen-free materi
