| 摘要 |
PROBLEM TO BE SOLVED: To prevent the defect in brazing caused by a dimensional change between the materials for brazing in brazing. SOLUTION: On brazing heating treatment, a composition 1 for brazing obtained by mixing shape retaining powder 1a in which shape and mechanical strength are retained with powder 1b consisting of brazing filler metal components is stuck to the brazing faces of the materials 11 and 13 for brazing. While the gap G between the materials 11 and 13 for brazing is retained by shape retaining powder 1a, brazing and soldering is performed. Thus, the gap between the materials for brazing is retained before and after the brazing treatment. COPYRIGHT: (C)2003,JPO |
