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采用分级预热法,对含C量高的及工作条件苛刻的Cr12MoV挤压辊进行了补焊修复。分析了Cr12MoV钢的焊接性,介绍了补焊工艺。
Adopting the method of preheating by classification, the Cr12MoV squeezing roller with high C content and harsh working conditions was repaired. The weldability of Cr12MoV steel was analyzed and the repairing welding process was introduced.