【摘要】 本文针对生产中6″活扳手扳体淬火裂纹问题进行研究。分析了原工艺常规淬火产生裂纹的原因,根据扳体的技术要求,选择了直接亚温淬火的新工艺进行试验,找出扳体直接亚温淬火的最佳工艺方案,然后投入生产,解决了扳体淬火裂纹问题.更多还原

【Abstract】 The problem of cracks of making 6" wrenches in quenching wrench bodies is studied here. Causes for cracks in former conventional manufacture of wernch bodies are analysed and according to the requirements of wrench bodies, the best way for making bodies by means of a direct intercritical quenching through testa of this method has been used and it proves successful in production, and the problem of cracks in making bodies has been solved.更多还原