It was found in the production practice with using kiss gating-feeder,that some defects in-cluding top surface depression and shrinkage at kissing area etc.

• 在使用压边浇冒口的生产实践中,由于化学成分、浇注温度、压边宽度、长度和冒口体积等选取不当,易造成铸件顶面凹陷、冒口根部缩孔、缩松等缺陷。