在实际压铸实验的基础上,求解了铸件一铸型界面换热系数h与铸件凝固速率v的关系.结果表明,二者呈线性变化关系:h=kh-v·v+ω(其中,斜率kh-v为铸型初始表面温度及铸件厚度的函数,ω为常数);通过线性拟合确定kh-v和ω值,从而确立换热系数与铸件凝固速率的关系.这种关系同时适用于镁合金AM50和铝合金ADC12.
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