垂直DISA线生产高铁用球墨铸铁底板类产品铸造工艺设计及优化

Casting Process Design and Optimization of Ductile Iron Base Plate for High Speed Railway on Vertical DISA Molding Line

为了提高垂直分型DISA线的生产效率和产品质量,以高铁用球墨铸铁底板类产品为例,阐述了垂直分型DISA线高铁用底板产品的模具工艺布局及浇注系统设计方法。结果表明,按照新的工艺设计,DISA线生产效率提高100%,并且通过壳芯内嵌式冷铁技术,解决了铸件关键热节部位内部的缩松、缩孔问题,成功实现了长度405 mm和宽度185 mm高铁用底板在DISA A板上每模2腔批量生产。

In order to improve the production efficiency and product quality of vertical DISA line,taking the ductile iron base plate products for high-speed railway as an example,the pattern layout and gating system of the base plate castings on the vertical DISA line were designed.The production results show that by adopting the new casting process,the production efficiency of the DISA line is increased by 100%,and the shrinkage and porosity defects in the hot spot region of the casting are eliminated by using the technique of the chill embedded shell cores.The mass production of 2 cavities ductile iron base plate castings with the length of 405 mm and width of 185 mm is successfully implemented with the A size molding plate of the vertical DISA line.