BRAZING METHOD BY HIGH-FREQUENCY INDUCTION HEATING OF METALLIC MATERIAL

摘要

PURPOSE:To securely execute brazing with a smaller amt. of flux at the time of brazing metallic materials by high-frequency induction heating in an atm. atmosphere. CONSTITUTION:An inert gas is blown from the outside to brazing points and a vacuum state is maintained within the hollow metallic material at the time of brazing the other metallic material to the aperture of the hollow metallic material with high-frequency induction heating by using the flux in the atm. atmosphere. Further, the inert gas is blown into the hollow metallic material in which the vacuum state is maintained.