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作 者:曹海 王宜 王磊 吴锦江 CAO Hai;WANG Yi;WANG Lei;WU Jin-jiang(Tianjin Rainbow Hills Cast Iron Co.,Ltd.,Tianjin 300457,China)
出 处:《铸造》2024年第1期107-113,共7页Foundry
摘 要:在呋喃树脂砂实型铸造的基础上,通过对铸件凝固过程中铸件—型砂界面处测温得到温度变化曲线,结合ADSTEFAN数值模拟软件的反算功能优化热物性参数,并验证其在实际生产中的有效性,以达到提高CAE计算精度的目的,为铸造工艺优化提供更精准的参考依据。其次用数值分析软件拟合出温度曲线及函数表达式,可以探究实际生产条件下厚大断面铸件的温度变化曲线特征以及本体金相状态与冷却速率之间的关系,为铸件局部位置提升珠光体含量的研究提供参考和新思路。Based on the full mold casting of furan resin-bonded sand,the temperature change curves were obtained by measuring the temperature at the casting-mold sand interface during the solidification process of casting,and the thermophysical property parameters were optimized with the inverse calculation function of the ADSTEFAN numerical simulation software,and its effectiveness was verified in actual production,so as to achieve the purpose of improving the CAE calculation accuracy and providing a more accurate reference for the optimization of casting process.On the other hand,numerical analysis software is used to fit the temperature curve and function expression,which can be applied to explore the temperature change curve characteristics of thick and large section castings under actual production conditions and the relationship between the metallographic state of the body and the cooling rate,so as to provide reference and new ideas for the research on the local position of castings to increase the pearlite content.
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