What is Induction Brazing?

Rather than using a torch to heat the metal, the parts to be brazed are placed in an inductor. (a single or multiple turn coil formed from copper tubing).

Very high frequency current (in the range of  1kHz to 450 KHz) is applied to the inductor via a high frequency generator and this induces eddy currents into the part being heated.  

These induced eddy currents  cause the metal placed within the inductor to be heated. The applied  flux on the metal  subsequently turns into solution thereby cleaning the braze joint and the alloy then melts and flows in and around this braze area.  

The advantages of induction heating are:

a) A controlled heat affected zone. (The heat is localized and eliminates the necessity to  apply     heat to the entire part.Distortion and oxidation levels are minimized)

b) Improved operator input:

The operator has the advantage of  sliding or rotating  the parts during the brazing process  enabling  both of the brazed  surfaces to receive a much fuller coverage of alloy.

The heat applied by induction is completely controlled by the operator
and allows us to stay within the operating ranges of the alloy .

Each part is brazed individually and should a problem arise, it is confined
to this particular part only and not to an entire lot.