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在原有大型立柱铸造工艺基础上,利用Anycasting铸造模拟软件模拟了铸件的充型和凝固过程。根据计算结果和缺陷发生情况,分析了成型过程中铸件的温度场变化和凝固规律。研究结果表明,底部平板未能形成顺序凝固,由于补缩不足容易生成多处缩孔缺陷。优化后在底部平板一侧开设浇冒口工艺,在局部区域形成利于补缩的顺序凝固,解决了缩孔缺陷,满足了实际生产的要求。
Based on the existing large-scale column casting process, casting and solidification process of the casting is simulated by Anycasting casting simulation software. According to the calculation results and the occurrence of defects, the changes of the temperature field and the solidification rules of the castings during the forming process are analyzed. The results show that the bottom of the plate failed to form the order of solidification, due to inadequate shrinkage is likely to generate multiple shrinkage defects. After the optimization, a pouring and riser process is set up on the side of the bottom plate to form the order of solidification in favor of shrinkage in the partial area, and the defect of shrinkage cavity is solved to meet the actual production requirements.