KTH330-08连接件铸造工艺改进研究

Research on Improvement of Casting Process of KTH330-08 Connector

本文针对某铸造厂可锻铸铁连接件生产效率较低的问题,设计开发出一箱两件铸造工艺。在原有一箱一件铸造工艺基础上,结合铸铁件铸造工艺设计方法,采用ProCAST数值模拟软件对连接件的初步铸造工艺模拟优化,并进行了生产试制。结合试生产中铸件暴露出的浇不足缺陷,通过模拟仿真获得的可视化结果,分析其成因并通过调整剩余压头高度、浇注温度、冒口位置等方式,最终确定了可锻铸铁连接件的铸造工艺,提高了该铸造厂连接件的产能,使铸件合格率达到90%以上。

Aiming at the problem of low production efficiency of malleable cast iron connectors in a foundry,this paper developed a casting process of one box and two pieces based on the original casting process of one box and one piece.Combined with the casting process design method of cast iron,the preliminary casting process of the connector was simulated and optimized by ProCAST numerical simulation software,and the production trial was carried out.Considering the insufficient casting defects exposed in the trial production,the causes were analysed through the visual results obtained by simulation.By adjusting the height of the residual indenter,the pouring temperature and the riser position,the casting process of the malleable iron connector is finally determined,which improves the production capacity of the connector in the foundry and makes the qualified rate of the casting reach more than 90%.