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根据旋流器铸钢件的结构特点,对旋流器进行铸造工艺设计。在铸件一侧设计浇注系统,在铸件顶部设计了冒口来实现对壳体进行补缩。用CAD软件建立了铸件的三维模型,运用ViewCast模拟软件对旋流器进行凝固过程模拟,发现在铸件顶部及热节处存在缩孔、缩松等缺陷。根据数值模拟结果并结合理论分析,通过改用保温冒口、增加冷铁的方法修改铸造工艺方案。结果表明,只在热节处出现少量的缩松,铸件的缺陷已经完全消失,从而获得了优化的工艺。
According to the structural characteristics of the cyclone steel casting, the cyclone casting process design. Casting system designed on the side of the casting, the top of the casting design riser to achieve the shell to make up. The 3D model of the casting was established by using CAD software. The simulation of the solidification process of the cyclone was carried out by using ViewCast simulation software. It was found that there were shrinkage and shrinkage defects in the top and the hot section of the casting. According to the numerical simulation results and theoretical analysis, the casting process is modified by replacing the riser with cold iron and adding cold iron. The results show that only a small amount of shrinkage in the hot section, casting defects have completely disappeared, resulting in an optimized process.