不锈钢铸件机械粘砂判据研究.pdf

铸 造 Sep. 2010 908 FOUNDRY Vol.59 No.9 · · 不锈钢铸件机械粘砂判据研究 1 1 1 1 1 2 马洪波，孙 逊，曾卫东，李宝治，孙瑞敏，豆志河 （1. 沈阳铸造研究所，辽宁沈阳 110022；2. 东北大学，辽宁沈阳 110004） 摘要：在铸件材质和造型材料确定前提下，砂型表面的受热条件是铸件机械粘砂的主要影响因素。对美国C. Beckermann 教授提出的铸钢件粘砂判据中的主要参数提出了修正建议，并利用铸件凝固过程温度场数值模拟计算技术，结合粘砂 试件试验数据，获得了采用呋喃树脂自硬砂造型工艺条件下ZG06Cr13Ni4Mo低碳马氏体不锈钢铸件的机械粘砂判据曲 线。经验证，机械粘砂判据曲线可定量预测铸件机械粘砂位置和面积。 关键词：机械粘砂；判据；不锈钢铸件；呋喃树脂自硬砂；温度场；数值模拟 中图分类号： 文献标识码： 文章编号： TG245 ；TP391.9 A 1001-4977 （2010）09-0908-05 Study on Metal Penetration Criterion of Stainless Steel Casting 1 1 1 1 1 2 MA Hong-bo , SUN Xun , ZENG Wei-dong , LI Bao-zhi , SUN Rui-min , DOU Zhi-he （1. Shenyang Research Institute of Foundry, Shenyang 110022, Liaoning, China; 2. Northeastern University, Shenyang 110004, Liaoning, China） Abstract ：Assuming that the casting alloy and molding materials are definite, the overheating of sand mould would be the most important technical factor causing the metal penetration. The correction of the main parameters, in the criterion of metal penetration of sand mould steel castings proposed by professor C. Beckermann, was put forward. Furthermore, the criterion curve of metal penetration is established to describe the relationship between the solidification conditions and the metal penetration, by comparing the experimental data with the numerical simulation results of temperature field during casting solidification process. It was ver