汽车减速器副箱体铸造工艺的优化

Foundry Method Optimization of Automobile Reductor Sub-Housing

对4QZ、5QZ汽车减速器副箱体铸件立做立浇与平做平浇两种铸造工艺方案进行对比,指出后者的优点是:可以减少加工余量、提高铸件表面质量,有利于减少气孔、浇不足、冷隔缺陷,砂铁比低,工艺出品率高,铸件合格率提高15%以上。

A Comparison between vertical moulding-vertical pouring method and the horizontal mouldinghorizontal pouring method for the automobile reductor sub-housing castings was made, and it was pointed that the latter method has following advantage： less machining allowance, better casting surface quality, favourable to reduce blowhole, misrun, cold shut, low sand/iron ratio, high process yield rate, and the qualified rate being increased by more than 15%.