发泡法制备泡沫铝

Fabrication of Foamed Aluminum by Foaming Technique

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。

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.