利用海岛模型分析了金属熔体中气泡长大的过程,获得了描述金属熔体中气泡长大的动力学方程组,结合铝合金熔体的特性,求解出动力学万程组的近似解根据近似解,得到了泡沫铅工艺因素的影响规律,即溶入铝合金熔体中的气相浓度从0.0005‰增大至0.0025‰,气泡半径从0.28mm增大到7.03mm.且增大的趋势明显加快;发泡时间变化150s,气泡半径增加了1.87mm;表面张力从0.8N n增加到1.2N/m,气泡半径从1.41 mm减小至0.94mm,且减小的趋势明显减缓；发泡温度从953K升至993K.气泡半径从1.08mm增大至1.17mm.这些影响规律在文献中都得到了验证,因此本研究对理解及指导泡沫铝发泡工艺具有重要理论意义.
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