论文部分内容阅读
T10A钢制冲子如图1所示。其热处理技术条件为HRC60～64。冲子在制造和使用过程中,有时有破裂现象产生,下面介绍我们所遇到的两种破裂情况。一、原材料质量不佳一批冲子共三件,在热处理和镀铬工序中因开裂各报废一件。第一件在热处理水淬完毕进入油中继续冷却时,冲子沿轴线纵向一裂为两半爿;第二件是在热处理
T10A steel punch shown in Figure 1. The heat treatment of technical conditions for HRC60 ~ 64. Punch in the manufacture and use of the process, sometimes rupture phenomenon, the following describes the two we have encountered the case of rupture. First, the poor quality of raw materials A total of three punching a total of three, in the heat treatment and chrome plating process due to a scrap one. The first piece in the heat treatment water quench finished into the oil to continue cooling, the punch along the longitudinal axis of a crack for two and a half 爿; the second is in the heat treatment