某厂自制的油泵车为消除噪声,设计了油泵消音装置。其材质为45°钢,一端为焊接结构。使用压力P_(max)=250公斤/厘米~2。焊后试压有漏油现象,经补焊仍未达到设计压力。在分析前两次焊接失败原因的基础上,拟订了质量保证措施,成功地修复了缸体。其具体措施如下: 1.铲除原焊缝并改变原接头的结构形式 A factory-made pump truck to eliminate noise, the design of the pump muffler. Its material is 45 ° steel, one end of the welded structure. Use the pressure P_ (max) = 250 kg / cm ~ 2. After welding pressure test leaks, the repair welding has not yet reached the design pressure. Based on the analysis of the causes of the first two welding failures, a quality assurance measure was drafted to successfully repair the cylinder. The specific measures are as follows: 1. Eradicate the original weld and change the structure of the original connector