支撑锭模用精整盘的铸造工艺  

Casting Method of Finishing Plate Used to Support Ingot Mold

作　　者：李健[1] 

机构地区：[1]鞍钢集团铁路运输设备制造公司,辽宁鞍山114048

出　　处：《现代铸铁》2017年第5期80-83,共4页Modern Cast Iron

摘　　要：介绍了用于支撑锭模的精整盘的铸造工艺、造型方法、铁液熔炼工艺和成分控制、浇注工艺以及热处理工艺。铸件材料牌号为HT150,质量为3 000 kg,主要尺寸为2 000 mm×1 200 mm×150 mm,属于较大型厚壁类铸件。采用水玻璃和硅砂配制型砂,铸件全部放在下型,倾斜浇注,浇注系统设在铸件最低处,在铸件最高处设置压边冒口。首件试制的浇注温度偏高,结果在内浇道附近有严重粘砂缺陷。将浇注温度降低后,对生产的铸件进行检查,结果显示:铸件表面光洁度、形状尺寸和力学性能均符合技术要求,无任何铸造缺陷。The casting method,molding method,iron melting process and composition control,pouring process and heat treating process were introduced. The iron grade of the casting was HT150,casting weight was of 3 000 kg,its main dimensions were of 2 000 mm ×1 200 mm ×150 mm,belonging to the relatively large and heavy section casting. Water glass and silica sand were used for preparation of molding sand. The whole casting was put into the bottom mold and the casting was poured on a tilted position with the gating system set at the lowest place and a kiss riser set on the highest place of the casting. The first casting was trial-poured with too high temperature and as the result,sever burning-on defect occurred at place near to the ingate. Then,after the pouring temperature was decreased,inspection of produced castings showed that surface cleanness,form,dimensions and mechanical properties totally met technical requirements without any casting defects.

关 键 词：精整盘 灰铸铁 铸造工艺 

分 类 号：TG251[金属学及工艺—铸造]