A METHOD OF BRAZING A FIRST METAL MEMBER TO A SECOND METAL MEMBER USING A HIGH WETTABILITY METAL AS LAYER BETWEEN THE TWO METAL MEMBERS; REFORMER MANUFACTURED BY THIS METHOD, THE METAL MEMBERS HAVING GROOVES

摘要

The present application relates to a method for brazing a first metal member (1), on which an oxide (Ia' ) forms during brazing, and a second metal member (2), in which a high-wettability metal (3) having a wettability with a brazing filler metal (4) that is higher than that of the oxide (1a') is applied to at least a brazing surface of the first metal member (1). The first metal member (1) and the second metal member (2) are then joined by first providing the brazing filler metal and then heating the brazing filler metal (4) to melt the brazing filler metal (4). The oxide covering film (Ia) is formed on the portion of the surface of the first metal member (1) to which the high-wettability metal (3) was not applied. The present application relates also to a reformer manufactured by this method, wherein first and second metal members (1,2) having a plurality of grooves.