发泡法制备泡沫铝

介绍了发泡法制备泡沫铝的工艺过程，论述了增粘、混合、发泡和冷却４个过程对泡沫铝孔结构的影响。采用ＴｉＨ２的缓释技术，可大大延缓ＴｉＨ２的反应时间，使ＴｉＨ２均匀混入铝熔体，从而制得孔结构均匀、吸声性能优良的泡沫铝。

Fabrication of Foamed Aluminum by Foaming Technique

The preparation of foamed aluminum by foaming technique was introduced. The effects of four main processes (viscosity rising,mixing, foaming and cooling) on the pore structure were discussed. By slow releasing technique, the reaction of TiH_2 is so delayed that TiH_2 can be well distributed in the aluminum melt. Foamed aluminum products with homogeneity pore structure and good property in sound absorbing were prepared.