感应加热对半固态AlSi7Mg合金连铸坯温度场和组织的影响
来源期刊：中国有色金属学报2000年第6期
论文作者：崔成林 毛卫民 赵爱民 孙峰 甄子胜 钟雪友
文章页码：809 - 814
关键词：铝合金； 半固态； 电磁感应加热；温度场； 组织
Key words：aluminium alloy; semi-solid; induction heating; temperature field; microstructure
摘 要：研究了电磁感应重熔加热对半固态AlSi7Mg合金连铸坯料温度场和组织的影响。结果表明：通过调整加热功率，可使半固态AlSi7Mg合金连铸坯料的温度场均匀一致，保证坯料的径向温度差小于1 ℃；电磁感应重熔加热的半固态AlSi7Mg合金连铸坯料中的初生α(Al)细小、圆整、分布均匀，但重熔过程不能改变坯料表层组织中初生α(Al)枝晶的基本形态。
Abstract: The effect of electromagnetic induction heatingon the temperature field and the microstructures in the nondendritic semi-solid AlSi7Mg alloy billets cast continuously was investigated. The results show that the homogeneous temperature field in the nondendritic semi-solid AlSi7Mg alloy billets can be obtained through adjusting the induction power, and the temperature difference in radial direction is less than 1 ℃. The results also show that the primary α(Al) phases in the billets heated inductively are small， spherical and distributed evenly in the microstructures， but the dendritic primary α(Al) phases in the peripheral layer of the billets cannot be changed basically.
