重卡过桥箱铸造工艺优化及生产实践  

Casting Process Optimization and Production Practice of Bridge Boxes

作　　者：王玉国 吕猛 WANG Yu-guo;LV Meng(Taiyuan Heawy Machinery Group Yuci Hydraulic Industry Co.,Lid.,Yuci Shanxi 030600,China)

机构地区：[1]太重集团榆液液压工业有限公司,山西榆次030600

出　　处：《铸造设备与工艺》2023年第6期5-7,共3页Foundry Equipment & Technology

摘　　要：针对QT450-10结构复杂汽车部件过桥箱铸件的缩孔和缩松缺陷问题进行研究,结合Procast软件模拟结果,通过调整铁液共晶度和再辉度,并使用铬铁矿砂芯的方法,成功降低铸件废品率,综合废品率在2%以下。实验结果表明,调整铁液共晶度接近1、再辉度小于3℃,以及采用铬铁矿砂芯可以有效减轻铸件缩松的机率,消除缩孔缺陷。该研究对于提高铸件质量和性能具有重要意义。Based on Procast software,for QT450-10 auto parts with complex structure,it is easy to produce casting defects such as shrinkage cavity and porosity,the causes of such casting defects are analyzed,by changing the raw material of sand core and optimizing the process,the rejection rate of castings was successfully reduced,and the comprehensive rejection rate was below 2%.

关 键 词：过桥箱铸件 QT450-10 缩孔缩松 Procast数值模拟软件 

分 类 号：TG245[金属学及工艺—铸造]