HIGH FREQUENCY INDUCTION COIL FOR BRAZING AND BRAZING METHOD BY USING THIS COIL

摘要

PURPOSE: To uniformly and easily execute the brazing of a tube made of Al alloy of complicated shape as the member for a heat exchanger of an automobile with a joint made of Al alloy by those other than skilled engineers, to execute the brazing work in the automated line, and to improve the productivity because the heating time is short. ;CONSTITUTION: In the brazing method where a tube 6 made of Al alloy is combined with a joint 7 made of Al alloy, the brazing filler metal is placed at the part A to be joined, and the brazing filler metal and the part to be joined are joined by executing the high frequency induction heating, the part to be joined is set in a freely inserting/removing manner through the part B where a part of the coil is lost inside the high frequency induction heating coil 8 which partly surrounds the circumference of the part A to be joined, and the induction-heated tube made of Al alloy is brazed with the joint.;COPYRIGHT: (C)1994,JPO