火车闸瓦消失模铸造工艺

Lost Foam Casting Technology Research of the Brake Shoe

简述消失模铸造小批量生产闸瓦的铸造工艺流程。包括铸件的成分设计,模样的制作,耐火涂料的组成及配制,铸件的造型操作及熔炼工艺。经生产验证,铸件的化学成分及组织满足要求,得到了表面质量较好的样品,产品合格率达到了95%以上。说明采用消失模铸造工艺生产火车闸瓦铸件是可行性的,并在实际应用中取得了很好的效果。

The casting production process of small batch train brake shoe was introduced, including chemical composition design, pattern preparation, the composition and preparation of refractory paint, mold making and melting process. The production trials show that the chemical composition and structure of casting meet the requirements, the surface quality of the samples is good, the qualified rate of the product reached more than 95%, so the lost foam casting is feasibility to train brake shoe, and good effects was achieved in practical application.