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介绍了较大球墨铸铁件铸造缺陷的冷焊修补工艺 ,即采用 Ni基焊条作打底焊 ,再用混合气体保护焊方法焊补余下部分。
The cold welding repairing process of casting defects of larger ductile iron castings is introduced, that is, the backing welding of Ni-based welding rod is adopted, and then the remaining part is welded by the method of mixed gas shielded welding.