圆柱面桥梁支座燃烧除碳法消失模铸造
Eliminating Carbon in Lost Foam Casting by Baking in Advance for Cylindrical Surface Bearing
李立新
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作者单位：（河北科技大学 材料科学与工程学院，河北 石家庄 050018）
中文关键字：消失模铸造；钢支座；模型燃烧
英文关键字： lost foam casting (LFC)； steel bearing； burning out EPS pattern
中文摘要：YZM系列圆柱面支座是一种新型铁路桥梁钢支座，采用消失模铸造工艺生产铁路桥梁钢支座有许多优点。介绍了模样燃烧消失空型壳消失模铸造的工艺过程，研究了燃烧除碳法的模样材料性质、涂料、真空负压等主要因素的影响。实践证明这种工艺方法可有效地解决铸钢件的增碳缺陷问题。
英文摘要： YZM cylindrical surface bearing is a new kind of railway bridge cast steel bearing. LFC process has many advantages in producing railway bridge cast steel bearing. The process of burnning out EPS pattern in LFC was introduced. Also the influence of such factors as pattern quality, coating, vacuum negative pressure on quality of lost foam cast steel was studied. The method of eliminating carbon can solve availably carburizing defect of steel casting was proved by practical production.