预热温度对泡沫铝成形影响的研究与分析  

Reasearch and Analysis of Effects of Preheating Temperatuve on the Forming Process of Foam Al-alloys

作　　者：王录才[1] 柴跃生[1] 张琰[1] 任建富 张五庆 

机构地区：[1]太原重型机械学院机械工艺系

出　　处：《太原重型机械学院学报》1996年第2期163-168,共6页Journal of Taiyuan Heavy Machinery Institute

基　　金：山西省自然科学基金;机械工业部教育司科学基金资助项目

摘　　要：系统研究了粒子预热温度对渗流铸造泡沫铝成形的影响，并对结果进行了理论分析．认为，泡沫铝渗流有效长度随预热温度的提高而提高，对每一粒子——金属液系统存在一相应的临界预热温度Ｔ．当Ｔ０＜Ｔ预＜ＴＥ（金属熔点时、金属可以获得良好的渗流充型．并从凝固的角度。The effects of preheatin temperature of granvles on the forming process of penetrating casting of foam Al-alloys around granules were systematically studied,The experiment vesults were theoretically analysed,it is considered that the higher the preheating temperatvre of granvles,The longer the valid length of penetrating of molten Al-alloys avound graules;and there is a decisive critical preheating temperature To for each granules-metal system;when the pveheating temperature of granules is between To and T E(Melt point of metal)The valid length of metal around granvles is longer enough.And also,The mechanism of pveheating of molten metal avound granules was analyzed and studied.

关 键 词：泡沫金属 渗流铸造 铝 预热温度 

分 类 号：TG292[金属学及工艺—铸造]