气门锁夹槽的断裂失效分析浙江大学材料系（杭州３１００２７）吴进明张升才李志章吴年强浙江汤齿集团公司金华县齿轮厂陈丰土１问题的提出内燃机气门工作时，以很高的频率作往返运动，气图１气门示意图门杆承受很高的交变拉伸应力作用，而且在锁夹槽（图１截面Ｃ）处发生... Fracture Failure Analysis of Valve Locking Slots Department of Materials, Zhejiang University, Hangzhou 310027 Wu Jinming Zhang Shengcai Li Zhizhang Wu Nianqiang Proposal of Chen Fengtu, Gear Factory of Jinhua County, Zhejiang Tooth Gear Group Co., Ltd. 1 The reciprocating motion of gas valve with high frequency during gas valve work, 1 Valve Schematic Door to withstand high alternating tensile stress, but also in the lock clip slot (Figure 1 section C) occurred ...