压边浇冒口工艺在高铬铸铁件上的应用国营３８８厂（枝城４４３３０１）雷培元我们在生产高铬铸铁球磨机衬板等铸件时，起初采用靠边耳冒口工艺，内浇口处往往存在气缩孔，且内浇口残留量在ｓｍｍ以上，难以清除，严重时导致铸件报废。后来用压边浇冒口工艺生产，此种缺陷... Application of high-chrome cast iron at the edge of the runner 388 (Zhicheng 443301) Lei Peiyuan When producing castings such as high chrome cast iron ball mill liners, There are often shrinkage holes, and the gate within the residue smm above, it is difficult to remove, causing serious casting scrapped. Later with pressure Riser craft production, such defects ...