根据球墨铸铁的理化特性 减少其铸件质量缺陷

According to physical and chemical properties of ductile iron, reduced the defect of castings quality

针对电机的生产过程中经常出现的铸件质量问题,经技术攻关反复试验,探索出解决方法。

In the production process of motor,castings often appear some quality problems,in enterprise production,some methods to solution were find through tackling problems in key technologies and repeated test.