轮盘铁型覆砂铸造成型凝固过程的模拟分析
Numerical Analysis on Solidification Process of Turntable in Sand-Faced Iron Mould
陈 霞1,2， 温 彤2
点击：3474次 下载：0次
作者单位：（1．重庆大学 机械传动国家重点实验室，重庆 400044；2．重庆大学 机械工程学院，重庆 400044）
中文关键字： 液态成形；模拟；铁型覆砂；轮盘
英文关键字：solidification process; numerical simulation; sand-faced iron mould; turntable
中文摘要：铁型覆砂铸造是在金属型内腔覆上一薄层型砂而形成铸型的一种铸造工艺，兼具有金属型和壳型铸造的特点。对轮盘的铁型覆砂铸造成形过程进行了数值模拟，获取了铸造填充过程的基本参数。对铸造过程可能产生的缺陷进行了分析，预测了铸件的缩孔、缩松等。相关结论在实际生产中得到了很好的印证。
英文摘要：Sand-faced iron moulding casting is a casting method that the metal mould is covered with a layer of resin sand in the mould cavity has the characters of permanent mold casting and shell mould casting. The solidification process of turntable in sand-faced iron mould was numerically studied, and the basic parameters of the process were obtained. The potential defects, including shrinkage and porosity, were also analyzed. The responding conclusion was verified in practice.