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运用Anycasting软件对灰铁转子座铸造工艺进行数值模拟,分析了铸件易产生缺陷的位置及缺陷形成的原因。通过三维造型软件不断调整浇注系统、冒口、冷铁尺寸及位置,并对改进方案进行数值模拟分析,最终获得合适的工艺。结果表明,铁水通过陶瓷管底注方式进入铸件型腔有助于消除氧化夹渣;在消除灰铸铁缩松缺陷时,根据实际情况将冷铁与冒口配合使用,冷铁消除热节,冒口设置在热节附近,使铸件均衡凝固,对解决灰铁转子的局部缩松较为有效。
Anycasting software is used to simulate the casting process of gray iron rotor seat, and the position of defects and the causes of defects are analyzed. Through three-dimensional modeling software to continuously adjust the pouring system, riser, chill size and location, and to improve the program numerical simulation analysis, and ultimately obtain the appropriate technology. The results show that the molten iron enters the casting cavity through the ceramic tube bottom injection, which helps to eliminate the oxidation slag. When the gray cast iron defects are eliminated, the chilled iron is combined with the riser according to the actual conditions. Set in the mouth near the hot section, so that the casting solidification equilibrium, to solve the gray iron rotor local shrinkage more effective.