BRAZING DEVICE, BRAZING METHOD, AND HEAT EXCHANGER

摘要

PROBLEM TO BE SOLVED: To provide a brazing device that achieves uniformization of temperature increase of each part of a workpiece by a simple configuration and that achieves high-speed brazing.SOLUTION: A brazing device SB makes high-temperature nitrogen gas convected within a brazing chamber 14. Thus, a header part and a tube part, which are aluminum members configuring a heat exchanger (workpiece) W, are brazed by being heated within a brazing chamber 14. The brazing device comprises a tray 23 for preferentially spraying the high-temperature nitrogen gas on the header part, in which a rate of temperature increase of the heat exchanger (workpiece) W is low, by controlling circulation of the high-temperature nitrogen gas convected within the brazing chamber 14.