Design of Induction Coils for Portable Brazing Induction Furnace

This paper deals with an induction furnace especially designed, analyzed, and implemented to work as a portable device used to perform brazing copper tubes and repair copper parts operations on site. Hence, it must be flexible, compatible, and able to concentrate the changing magnetic flux on the required position to shorten the brazing time and avoid transferring thermal effects to unrequired positions. The design is intended to maximize the power transfer to the load and reduces the losses that occur in the furnace power supply. These requirements are approved, and the practical results agree with the simulation.