大断面球铁车轮的铸造工艺  

Casting Method of Heavy Section Nodular Iron Wheel

作　　者：杜瑞昌[1] 方晓辉[1] 邵抗振[1] 李克锐[1] 吴现龙[1] 张忠仇[1] 

机构地区：[1]郑州机械研究所,河南郑州450052

出　　处：《现代铸铁》2010年第6期18-20,共3页Modern Cast Iron

摘　　要：采用半封闭底注式浇注系统,热节处设置一定数量的外冷铁,并在浇注时进行随流孕育的工艺来生产大断面球铁车轮。检测结果表明:铸件没有铸造缺陷,避免了球化衰退,保证了力学性能。The casting method of a heavy section nodular iron wheel was introduced：semi-pressured and bottom-gated gating system was adopted,some chills were put at the hot spots,and stream inoculation was conducted during pouring process.Inspection showed that the wheel had no casting defects,no nodularization fading,and all mechanical properties met requirements.

关 键 词：大断面球铁铸件 登机桥车轮 铸造工艺 

分 类 号：TG255[金属学及工艺—铸造]