Development Of Brazing Grease For Stainless Steel-Aluminum In High Frequency Induction Brazing

In order to solve the problem that brazing filler metal power and flux bring for stainless steel-aluminum by high frequency induction brazing, the brazing grease is developed.All performences of the brazing grease are tested in comparing with the original brazing filler metal, and the fixed quantity evaluation is made. It's wettability,spreadability,filling capacity erosion property,joint strength,brazing temperature,holding time and joint metallographic cross-sections have reached the original brazing filler metal's.Serviceability test is done for comparation.No spatter happens in the course of brazing with the brazing grease.While it happens with the original brazing filler metal. Their physical and chemical properties are tested,within the fixed time, serviceahility is tested,and the brazing grease has reached the original one.The brazing grease's wettability,spreadability,filling capacity,erosion property,joint strength and so on have reached the original one used in the factory. It has excellent serviceability and no soatter on heating in the course of high frequency induction brazing.And it doesn't dry out and lose efficacy within quite a long time.Research achievements in this paper replenish blank space of brazing grease for stainless steel-aluminum high frequency induction brazing at home and abroad and have tremendous social and economical advantages.