基于ProCAST轴承座零件的铸造工艺设计及优化

Casting Method Design and Optimization of Bearing Seat Based on ProCAST

以大型轴承座铸件为设计对象,根据铸件的技术要求和结构进行工艺性分析,确定初步铸造工艺方案、工艺参数和浇注系统,并结合铸造工艺数值模拟仿真技术,优化工艺设计方案,使其满足工艺要求。设计中借助了计算机技术辅助铸造工艺的设计,对设计的4种浇注系统进行模拟充型并分析浇注系统优劣,最终确定采用底注式浇注系统,在工艺优化中,通过多次调整冒口与冷铁的位置,使铸件实现了顺序凝固方式,有效防止了铸件缺陷的产生。

With large bearing seat casting as the design object,according to the technical requirements and structure,determine the preliminary casting method scheme,method parameters and gating system,and combined with the casting method numerical simulation technology,optimize the method design scheme,so as to meet the method requirements.During method design,with the help of computer-assisted casting method design,according the four gating systems the simulated mold filling were conducted,and analyzed their advantages and disadvantages,and finally determine to adopt the bottom gating system.During method optimizing process,by multiple times of adjusting risers and chills positions,the directional solidification of the casting was realized that effectively prevented casting defects occurring.