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通过采集高压铸造过程中铸型内部温度的变化曲线,采用热传导反算法,求解了以铝合金ADCl2Z为铸件材料的铸件(?)铸型界面换热系数,分析了该界面换热系数随铸件厚度的变化规律.计算及分析结果表明:在压铸过程中,铸件－铸型界面换热系数迅速升至最大值,随后下降,凝固结束后趋于稳定．涛件厚度增大不仅提高了换热系数,而且对换热系数的变化趋势也有很大影响.同时,不同厚度的铸件,其固相率和冷却速率的变化规律也有较大区别,
The heat transfer coefficient was used to solve the heat transfer coefficient of the interface of castings with aluminum alloy ADCl2Z as casting material. The heat transfer coefficient of the interface with the casting thickness The results of calculation and analysis show that during the die-casting process, the heat transfer coefficient of the casting-mold interface rapidly increases to the maximum, then decreases, and then tends to be stable after the solidification. Increasing the thickness of the Tao pieces not only increases the heat transfer coefficient but also greatly affects the change tendency of the heat transfer coefficient.At the same time, the variation rules of the solid fraction and the cooling rate of castings with different thicknesses are also greatly different,