Discussion on Technology of Pouring Riser with Bending-in Pouring and crossing Sand Core of Cast Iron
In order to solve the clefeet of sleeve type casting’s shrinkage, dispersed shrinkage, slag inclusion and blowhole, using non-directional solidification technology to improve the intrinsic foundry technology, which reduced defect a mentioned and make the production rate increase from 50%～80% to above 98%. It shows that top casting preferential riser keep to the side is an effective way to solve the defect of shrinkage, dispersed shrinkage and slag blone of sleeve tyke casting.