Spiral Pouring System in Lost Foam Casting
Author of the article:LIU Lizhong
Author's Workplace：Hangzhou Guiju Casting Machinery Co.,Ltd.,Hangzhou 311400,China
Key Words：EPC alloy steel shaft "golden dragon climbing jade column"spiral pouring system
Abstract：Three hollow special alloy steel shafts were needed for large equipment.Lost foam casting by vertical side casting step casting process.When the molten steel was injected from one side of the cylinder,the temperature of the injected side of the molten steel was higher than that of the symmetrical side far from the inner gate,and the shrinkage of both sides was different,which would lead to the arc-shaped deformation of the casting.The results show that the"golden dragon climbing jade column"spiral pouring system adopts the side injection of rotating arc curve,the heat field is reasonably distributed through the regulation of flow field,and the deformation problem of hollow shaft is effectively solved.
