45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/135, 70/140, 75/150, 80/143, 80/156, 92/188
(以上為標(biāo)準(zhǔn)規(guī)格,可根據(jù)客戶(hù)需求定制)
螺桿壓縮比可根據(jù)不同產(chǎn)品和配方進(jìn)行設(shè)計(jì)
技術(shù)指標(biāo):
調(diào)質(zhì)硬度:HB280-320
氮化硬度:950-1100HV
氮化深度:0.50-0.80mm
氮化脆性:≤2級(jí)
表面粗糙度:Ra 0.4μm
螺桿直線度:0.015mm/m
合金層硬度:HRC60-72
合金層深度:≥3mm
氮化后表面鍍鉻層硬度:≥950HV
鍍鉻層厚度:0.025~0.10mm