METHOD AND APPARATUS FOR ALLOYING OF COATINGS

摘要

METHOD AND APPARATUS FOR ALLOYING OF COATINGS A method and apparatus particularly adapted for alloying a coating on a stool strip. The invention uses an induction heating furnace to produce a galvannealed product. In particular, the operating frequency to the heating zone of the furnace. Preferably the invention comprises imposing a frequency modulation on the operating frequency of the power signal to the heating coils.