电弧热焊法在柴油机机体惯穿性裂纹焊修工艺中的应用

Application on arc heat welding method in welding repairing process of diesel engine body through cracks

针对16V280柴油机整铸机体铸造过程中产生的裂纹进行了焊接修复工艺的研究。通过对柴油机机体基本状况的了解,分析确定修复方法,并进行较为详细的焊前准备工作,提出了下缸孔、右侧缸体、孔洞的施焊修复工艺,最后进行焊后热处理。通过检测、检验等步骤后达到了合格产品的标准,并能够正常使用。

According to 16V280 diesel engine cast-body′s crack in casting process,the welding repairing process has studied in this paper.Based on the analyzing of the basic status of diesel engine body,the repairing method is determined and a more detailed preparation before welding work is carried on,the repairing process of next cylinder hole,right side of cylinder body and holes are put forward,and the corresponding heat treatment is proceeded after welding in the end.Through the steps of testing and inspection etc.the diesel engine body achieves the standard of qualified products,and can be used normally.