12V175Z型柴油机机体采用HT25-43材质,是铸铁部件。铸铁采用电焊难度很大,尤其是机体结构复杂,结构尺寸变化比较悬殊,所以采用电焊修复更为困难。但是我段广大革命职工,在《鞍钢宪法》的光辉照耀下,在段党委的正确领导下,破除迷信,解放思想,大胆实践,终于在机体焊修方面取得了可喜成果,为内燃机车的检修闯出了一条道路。我们采用的焊修工艺如下: 12V175Z diesel engine with HT25-43 body material is cast iron parts. The use of cast iron welding is very difficult, in particular, the body structure is complex, structural changes in the size of the more disproportionate, so the use of welding repair more difficult. However, with the glorious shining of “Anshan Iron and Steel” Constitution, my revolutionary workers and staff, under the correct leadership of the Party Committee of Segment, have got rid of superstition, emancipated their minds and daringly practiced. At last, they achieved gratifying results in body welding and repairing, Break a path We use the welding repair process is as follows: