Brazing is joining two pieces of metal together. Most people think that two pieces of metal can only be joined together with welding. However, there are plenty of other ways by which metal pieces can be joined. Brazing joins two pieces of metal with each other with the help of a filler material that’s placed between the joint interfaces. The temperature of the filler metal is kept below the melting point of the base metal, but it’s over the base temperature rating of 900 F. By the time the filler metal cools and turns into its solid state, it creates a very strong bond between the two metals. In aluminum dip brazing, the filler metal is made using 88% aluminum and around 12% silicon.
The Process
Before the brazing process begins, the parts to be brazed together are cleaned thoroughly using different chemicals. Then, the filler metal is used to place the pieces as close to each other as possible. The assembly in which the aluminum dip brazing process will be carried out is then heated within an air furnace, reaching a temperature as high as 1,025 F. This allows for uniform temperature throughout the process. Once that is completed, the specific work piece is kept within a molten salt bath. This is an aluminum brazing flux. The liquid heat acts rapidly and in a uniform manner, allowing for maximum contact and quick cooling.
Designs
When it comes to aluminum dip brazing, the design of the process plays an important role. There are several companies that offer dip brazing services, which include engineering services, as well as free consultation. You should generally inquire with an expert before making any sort of decision. It will improve the results considerably.
There are many Aluminum Dip Brazing Companies in the market today. Hi-Temp Brazing Inc. is an industry leader, NADCAP accredited for 12 years in all requirements of aluminum dip brazing and related services.
