作者单位:Li Zengmin(Hebei University of Science and technology, CFA Full Mold Casting Branch, Shijiazhuang 050000, Hebei)李增民(河北科技大学,中国铸造协会实型铸造分会,河北石家庄050000)Liang Guangze(China Foundry Association, Full Mold Casting Branch, Shanghai 200090)梁光泽(中国铸造协会实型铸造分会,上海200090)