BRAZING APPARATUS, BRAZING METHOD, AND HEAT EXCHANGER

摘要

Provided is a brazing apparatus that uniformly raises the temperature of workpieces by means of a simple structure, and is capable of high-speed brazing. This brazing apparatus (SB) circulates hot nitrogen gas by convection flow inside a brazing chamber (14), thereby heating and brazing aluminum members, each of which comprises a header part and tube part, inside the brazing chamber (14), said members constituting heat exchangers (workpieces) (W). The brazing apparatus (SB) is provided with trays (23) that preferentially blow the hot nitrogen gas on the header part of the heat exchangers (workpieces) (W), which rise in temperature slowly, by controlling the circulation of the hot nitrogen gas circulating by convection inside the brazing chamber (14).