地铁用球墨铸铁齿轮箱体铸造工艺设计

Casting Process Design of Ductile Iron Gear Box for Metro

介绍了地铁用球铁齿轮箱体的铸造工艺设计。该结构类型齿轮箱体壁薄,形状复杂,尺寸要求较高,在生产过程中易产生变形、夹砂、气孔等铸造缺陷。针对箱体试制过程中出现的各类铸造缺陷,采用流场分析及凝固模拟分析,通过优化工艺消除箱体的铸造缺陷,保证产品的质量及尺寸要求。

The casting process design of ductile iron gear box for metro is introduced.This type of gear box has thin wall,complex shape,and high size requirements.It is easy to produce casting defects such as deformation,sand inclusions and blowhole in the production process.In view of various casting defects in the trial production process of the box body,the flow field analysis and solidification simulation analysis were conducted and the casting process was optimized to eliminate the casting defects and ensure the quality and size requirements of the product.