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如何減少重卡齒輪批發(fā)的產(chǎn)品淬火開裂與變形呢?
首先要正確選擇重卡齒輪批發(fā)其材料并合理設(shè)計(jì)齒形狀。對(duì)于形狀復(fù)雜的重卡齒輪批發(fā)應(yīng)選用淬透性較高的齒輪鋼,使之能在緩冷的淬火介質(zhì)中冷卻,以減小內(nèi)應(yīng)力。對(duì)于精度要求較高的重卡齒輪批發(fā),可選用底變形鋼,并采用分級(jí)或等溫淬火。重卡齒輪批發(fā)設(shè)計(jì)時(shí)盡量減少截面厚薄懸殊、避免薄邊尖角;在齒輪厚薄交界處盡可能平滑過(guò)渡,對(duì)于大型齒輪,宜采用分離鑲拼結(jié)構(gòu)以盡量創(chuàng)造在熱處理后仍能用機(jī)械加工修整變形的條件。