Brazing in air with flux.
Vacuum brazing stainless steel to copper.
Brazing stainless steels requires adequate planning as the alloys used to form joints must have properties compatible with the base metal.
However a key advantage is that many dissimilar metals can be joined to stainless steels by brazing.
To vacuum braze copper to stainless two things are essential.
Brazing in air with flux.
The brazing process can yield strong joints that are ductile clean and smooth.
The first parts to braze copper and stainless steel in the electronics industry were later applied to the aerospace industry and the atomic energy industry.
The stainless steel should be nickel plated since the chromium in the stainless oxidizes extensively during heating and those oxides can t be reduced removed by chemical reaction or by dissociation until temperatures of at least 1850 1900 f 1010 1040 c are reached.
Most stainless steel types with the exception of titanium or niobium stabilised grades can be brazed.
You can purchase brazing rods with varying of silver content and either flux coated or un coated rod.
Hydrogen brazing is a metal joining technique where the materials typically ceramic steel stainless steel or oxygen free copper are joined together in a high temperature hydrogen environment.
The braze filler material braze alloy is usually a combination of copper nickel and precious metals such as gold or silver.
If this video we show you how to do just that using 56 silver flux coated brazing alloy by solderweld.
Brazing under reducing atmosphere.
But will also cost more and requires the use of an acetylene or mapp gas torch to melt the brazing rod.
Brazing copper will provide a stronger bond because of the high of silver in the brazing rod.
How to braze stainless steel to copper.
Brazing stainless steels introduction.
The three main methods in common use for brazing stainless steels are.
Brazing copper to steel is actually pretty easy.
In 1959 they were applied to the manufacture of stainless steel plate fin heat exchangers.
Vacuum brazing is a precision brazing technique used to join critical assemblies many of which employ delicate or intricate features.
Extensive experience in materials joining enables vpe to customize our vacuum brazing services and ensure the best process conditions for your assembly application.
