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铁路货车钩舌铸造工艺优化

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介绍了铁路货车用E级铸钢钩舌的铸造工艺设计和产品试制.针对试制过程中出现的钩舌内部缩孔缺陷,采用模数分析方法,发现原设计砂型冒口模数小于冒口座模数而导致冒口补缩能力不足,是造成钩舌缩孔缺陷的主要原因.通过优化冒口设计,采用发热冒口,完全消除了钩舌内部缩孔缺陷,有效保证了产品铸造质量和运行安全.
Casting Technology Optimization of the Railway Freight Car Knuckle
This article introduces the foundry technology design and the trial production of the railway freight car knuckle.The knuckle is made of Grade E cast steel.The calculation of casting modulus shows that the riser pad's modulus is higher than the riser's,which leads to the lack of the riser feeding capacity.And this is the main cause of the shrinkage defects.After the riser was redesigned and using the exothermic riser,the inner defect of the knuckle was eliminated and the casting quality and application safety was enhanced.

knucklemodulusshrinkageexothermic riser

刘涛、董中友、武永亮、焦辉、鄢卓明、熊兵

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中车长江车辆有限公司,湖北武汉430212

中车长江铜陵车辆有限公司,安徽铜陵244142

钩舌 模数 缩孔 发热冒口

2016

铸造
沈阳铸造研究所 中国机械工程学会铸造分会

铸造

CSTPCDCSCD北大核心
影响因子:0.499
ISSN:1001-4977
年,卷(期):2016.65(12)
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