针对传统渗流铸造工艺制备泡沫铝时渗流过程难以控制,易造成渗流不足或渗流过度,提出了一种泡沫铝的新型铸造工艺—低压渗流铸造工艺。研究了新工艺下填料粒子预热温度、熔体铸造温度、充型压力和填料粒子粒径等工艺参数对渗流成型过程的影响规律,获得了孔径可控、结构均匀的泡沫铝制备技术。 Aiming at the difficulty of controlling the seepage process during the preparation of aluminum foam by conventional seepage casting process, it is easy to cause seepage or insufficient seepage. A new casting technology of aluminum foam, low pressure seepage casting process, is proposed. The effects of preheating temperature, melt casting temperature, filling pressure and particle size of filler particles on the seepage forming process under new technology were studied. The preparation technology of aluminum foam with controlled pore size and uniform structure was obtained.