支承座铸钢件的凝固缺陷模拟及铸造工艺优化

Simulation on Solidification Defects and Optimization on Casting Process for Supporting Stand Steel Castings

对支承座铸钢件设计了两种初始铸造工艺方案,分别采用中注式和底注式两种浇注系统。通过UG软件对铸造工艺方案进行三维造型,并运用HZCAE软件对铸件进行凝固缺陷模拟。模拟表明,该铸钢件的中下部位产生了严重的缩孔缺陷。通过对冒口和冷铁等工艺方案进行改进后,铸件本体上的缩孔缺陷显著减少。

Two initial casting processes for supporting stand steel castings were designed,which were parting gating and bottom gating respectively.The processes were conducted 3-D moulding by UG software.Then,the solidification defects of the castings were simulated by HZCAE software.The simulated results of initial casting processes show that the castings＇ middle and bottom sections produced serious shrinkage.The simulation defects of the castings were significantly decreased by rationally setting riser,chill iron and gating system.