铸钢件的主要铸造缺陷包括铸件表面粘砂。本技术开发旨在使用了球状人造砂的呋喃树脂铸型中,通过添加球状氧化铁来防止铸钢件粘砂缺陷的产生。利用本技术,可以使添加了球状人造砂的呋喃树脂铸型顺利应用,本技术成果已获得明显的经济效益和技术实施。 Casting the main casting defects include casting surface sticky sand. This technology has been developed to prevent the occurrence of sticking sand defects in steel castings by adding spherical iron oxide in a furan resin mold that uses spherical artificial sand. By using the technology, the furan resin mold with the spherical artificial sand added can be successfully used, and the technical achievements have obtained obvious economic benefits and technical implementation.