| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method of manufacturing welded pipe arrangement that can easily ensure that a filler material such as a brazing material is sufficiently filled between pipes without requiring cost hike.SOLUTION: A method of manufacturing a welded pipe arrangement 1 including a first pipe 10 and a second pipe 20 connected to the first pipe by being welded to the first pipe 10, includes: a ring brazing filler arranging step S12 of inserting a connection part 21 of the second pipe 20 and a ring brazing filler 25 into an interior of an enlarged-diameter connection part 12 formed to increase a diameter in the first pipe 10, and interposing the ring brazing filler 25 between an end surface 22 of the connection part 21 located inside of the enlarged-diameter connection part 12 and the enlarged-diameter connection part 12; and a filling step S13 of melting the ring brazing filler 25 and filling the ring brazing filler 25 between the enlarged-diameter connection part 12 and the connection part 21.</p> |
