气流搅拌法制备半固态铝硅合金浆料的工艺研究

Study on Preparation of Semi-solid Aluminum-silicon Alloy Slurries by Gas-bubbling Methods

为获得气流搅拌法制备Al-7%Si合金半固态浆料的最佳工艺,运用正交试验方法分析不同搅拌工艺参数对Al-7%Si合金半固态组织的影响。通过直观分析与方差分析表明,气流搅拌法制备Al-7%Si合金半固态浆料的最佳条件为:搅拌时间为30 s,搅拌温度为620℃,取样温度为605℃,气体流量为1 L/min。

For achieving the optimal process of preparing semi-solid slurry of A1-7%Si alloy by gas-bubbling method, the effects of process parameters on the microstructures of semi-solid A1-7%Si alloy were analyzed by orthogonal test method. By intuitional and square difference analysis, the optimal preparing conditions are stirring time 30 s, stirring temperature 620℃, sampling temperature 605℃ and gas flow 1L/min.