The reasons causing socket pipes produced with EPC process to have defects of too big ellipticity, mould wall moving, mould shell collapsing, metal run-out and so...

• 进一步分析了消失模工艺生产球铁管件中遇到的承插口随圆度超标、型壁位移、塌箱、跑火等缺陷产生的原因,并给出了相应的解决方法,指出:对于管件类产品,消失模工艺有其独特的优越性。