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新聞中心

不銹鋼鑄件發生脆斷的原因

發布時間:2022-04-21    字號:    
不銹鋼鑄件發生脆斷的原因如下:
 
1、熔煉時的脫氧劑一鋁用量過高,它與鋼中的氮化合易構成氮化鋁夾 雜而使鑄件脆斷。
 
2、筑爐襯時硼酸用量過高,而使鋼發生碳硼化合物。
 
3、碳含量過高以及其他合金元素大于規模也會使鋼的脆性增加,例如在用生鐵增碳時,加料不仔細或不經核算,會帶進有害元素。
 
4、鋼水嚴峻過熱以及熱處理操作不妥,晶粒粗大。
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