冷压-溶解-真空烧结法制备泡沫铝的工艺研究  

Manufacturing Aluminum Foam by Press-Dissolution-Vacuum Sintering Process

作　　者：赵乃勤[1] 赵万祥[1] 富东慧[2] 徐家富[2] 周福刚[1] 

机构地区：[1]天津大学材料科学与工程学院,天津300072 [2]天津大学机械工程学院,天津300072

出　　处：《金属热处理》2005年第12期20-23,共4页Heat Treatment of Metals

摘　　要：介绍了以NaC l粒子为造孔剂利用冷压-溶解-真空烧结法制备泡沫铝的新工艺。研究了该方法制备泡沫铝的关键工艺过程,分析讨论了试验工艺条件和工艺参数对泡沫铝形成及质量的影响。结果表明,该方法工艺简单,可制备出孔分布较均匀,且孔结构及孔隙率易于控制的通孔泡沫铝。压制压力250MPa、烧结温度540℃保温2h为最佳的制备工艺参数。A new process of press-dissolution-vacuum sintering for manufacturing aluminum foam was introduced, NaCl particles were used as the pore formation agent. The effects of the compaction and sintering parameters on the properties of aluminum foam were investigated. The results show that the process can produce the open-cell aluminum foam with u- niform hole, and the hole structure and porosity can be easily controlled. The optimum range of compacting pressure and sintering parameters are 250MPa,540℃ for 2h, respectively.

关 键 词：泡沫铝 粉末冶金 真空烧结 

分 类 号：TG146.2[一般工业技术—材料科学与工程] TF125.6[金属学及工艺—金属材料]