介绍了Si元素在纯铝和Al-Zn-Mg-Cu等高强韧舍金中的存在形式及其对合金性能的影响,说明了去除杂质硅元素的意义.综述了目前铝及其合金熔体中杂质硅的控制及去除方法,指出偏析法、三层液电解法以及电磁净化法都存在一定的局限性,而合金化法针对低硅浓度的铝合佥去除效率较低.
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