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分析了采用呋喃树脂自硬砂生产球铁曲轴所产生的几种缺陷及原因 ;介绍了用碱性酚醛树脂自硬砂工艺代替呋喃树脂自硬砂工艺后消除缺陷、提高球铁曲轴品质的机理。
The defects and causes of the production of ductile iron crankshaft using furan resin from hard sand were analyzed. The mechanism of eliminating defects and improving the quality of ductile iron crankshaft by replacing the furan resin self-hardening sand with alkaline phenolic resin .