(太原重型機(jī)械學(xué)院 材料科學(xué)與工程分院，太原 030024)
摘 要: 在實(shí)驗(yàn)的基礎(chǔ)上，繪制出填料粒子成型時(shí)的體積與泡沫鋁合金的孔隙率相對(duì)應(yīng)的變化曲線，并應(yīng)用力學(xué)的基本原理對(duì)泡沫鋁合金孔結(jié)構(gòu)的成形機(jī)理進(jìn)行了研究。確定填料粒子成型時(shí)的體積變化應(yīng)在0%～12%之間(此時(shí)泡沫鋁合金的孔隙率應(yīng)在41.6%～47.6%之間)，才能穩(wěn)定填料粒子尺寸，從而更好地控制泡沫鋁合金的孔徑尺寸，提高成型質(zhì)量，穩(wěn)定泡沫鋁合金的使用性能。
關(guān)鍵字: 填料粒子；泡沫鋁合金；孔結(jié)構(gòu)；孔隙率；散粒介質(zhì)
YOU Xiao-hong, CHAI Yue-sheng
（Branch of Materials Science and Engineering,
Taiyuan Heary Machinery Institute, Taiyuan 030024, China）
Abstract:The changing curve of the volume of shaped filler particles in relation to foam aluminum porosity was described on the basis of experiment. The shaping mechanism of foam aluminum pore structure was shown by the basic principle of mechanics. It was asserted that the volume changes (decreasing) of shaped filler particles should be 0%～12% (at this time, the porosity of foam aluminum should be 41.6 %～47.6%), thus, the size of the particle can be stabilized so as to better control the aperture of the foam aluminum and stabilize its operating performance.
Key words: filler particle; foam Al alloy; hole structure; porosity; scattering particle medium
