| 摘要 |
PROBLEM TO BE SOLVED: To provide such a sandwich panel as capable of reducing costs while improving strength. SOLUTION: In a sandwich panel wherein core materials 3 are interposed between a pair of surface plates 2, the surface plate 2 is joined by brazing to the core material 3 and the core materials 3 are mutually joined by brazing, fluoride flux incorporating silicon powder is coated on a brazed surface at the time of being brazed, one of the surface plate 2 or the core material 3 is formed with an iron material made thin sheet 2b on the surface of which an aluminum film 2a is coated, and the other is formed with an aluminum material. |
