大型框架铸钢导轨铸造工艺设计与优化

Casting Process Design and Optimization of Large Scale Frame Casting Steel Guide Rail

在对某装备铸钢导轨的结构特点和铸造工艺难点进行分析的基础上,对铸件的初始工艺进行试制和验证,并针对初始工艺铸件产生的浇不足、冷隔、缩孔、缩松和变形等缺陷,利用ProCAST三维数字化仿真模拟软件对铸件的凝固过程进行了仿真模拟和变形规律分析,并根据仿真模拟分析结果制定了改进措施,工艺改进后生产的导轨铸件浇不足、冷隔、缩孔、缩松等缺陷得到了很好的解决,变形量也得到了有效的控制,加工后导轨铸件整体结构和尺寸符合图纸设计要求。

On the basis of the analysis of the structural characteristics and casting process difficulties of a certain equipment casting steel guide, the initial process of the cast steel guide was designed and a few castings have been trial-produced. To eliminate casting defects such as misrun, cold laps, shrinkage, dispersed shrinkage and deformation due to the initial casting process, the solidification process and the deformation law of the cast were simulated by means of the ProCAST three-dimensional digital simulation software. The new casting process was designed based on simulation results and the above-mentioned cast defects have been solved.The deformation of the cast has been effectively controlled, and its overall structures and size of the cast after machining met the design requirements of the drawings.