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针对20Cr钢钻机立轴轴套渗碳淬火热处理存在的变形问题进行了原因分析,提出了改进的碳氮共渗工艺,并已用于工业生产,取得了显著的经济效益。
Aiming at the reason of deformation existing in carburizing and quenching heat treatment of vertical shaft sleeve of 20Cr steel drilling rig, the improved carbonitriding technology is proposed and has been used in industrial production with significant economic benefits.