Study on the Main Sources of Casting Inclusions
Author of the article:WANG Wenzhong
Author's Workplace：Casting Center of China Sinotruck Group Co., Ltd., Ji'nan 250000, China
Key Words：Ladle slag inclusion refractory materials molten metal filter
Abstract：
The sources and forming methods of casting inclusions were studied. The results show that the inclusions mainly come from the slag formed by ladle lining under the corrosion of high temperature liquid metal and flow into the mold cavity. Casting ladle adopts various ways to block slag, which can only prevent the slag floating on the liquid metal. Casting ladle lining should be more refractory than furnace lining refractory materials to reduce corrosion. Setting molten metal filter on the runner system can play a certain role in slag resistance.
