曉昀 發(fā)表于 2018-6-22 23:17 $ v: V d0 z; C, I& K7 |45#做傳動軸,,一般正火處理或者調(diào)質(zhì)處理就行,調(diào)質(zhì)HB228-255.裝軸承的部位淬火:HRC45-50. # G5 B9 E \8 ], G, H/ A; G$ w$ Y4 |0 x% v 45#的齒輪零 ...