Appearance and specification: white powder, - 300 mesh
Melting point (melting range): 545-570℃

Applicable process: Welding in protective atmosphere furnace, applicable to welding of aluminum heat exchanger with a small amount of magnesium.

It is welded with corresponding powdery solder. The developed chemical coprecipitation method to synthesize solder solves the problems of low reaction conversion rate and high free fluoride in the preparation of aluminum solder. The technical level is leading in the country and won the first prize of Guangdong Provincial Department of Heavy and Chemical Industry for technological progress.