我们曾接受过一批管子缩口的外协任务。众所周知,这种变形在强力旋压机上进行较为理想,但我厂无这种稀有设备,经三结合研究,决定在空气锤上进行试验,结果成功。订货厂将锻件进行磁力探伤检查,未发现任何锻造缺陷;加工成零件后,进行了高压试验和工作试验,都达到了设计标准,证明了锻造缩口 We have received a host of outsourcing contracting tasks. As we all know, this deformation in the strong spinning machine is more ideal, but I have no such rare plant equipment, the three combined research, decided to test the air hammer, the result is successful. Forging factory forging magnetic inspection, did not find any forging defects; processed into parts, the high-pressure test and work tests, have reached the design standards, proved that the forging necking