MANUFACTURE OF METAL BELLOWS

摘要

PURPOSE:To form a metal bellows with a simple work by coating a brazing filler metal on the annular step part or the inner peripheral edge part of one part of an annular metal plate and the end edge part of the outer peripheral edge part of the other part of the annular metal plate and joining both with brazing by overlapping them. CONSTITUTION:Step parts 5, 6 are provided so that the step part 5 of the inner peripheral edge part 1a of a 1st annular metal 1 and the inner side part 1b'' of the outer peripheral edge part 1b may be located in the same plane 7 and a wave projection 4 is formed so as to locate at one side of this plane 7. The inner peripheral edge part 2a of a 2nd annular metal 2 and outer peripheral edge part 2b are formed flat so as to locate in the same plane 8 and the wavy projection 4 is formed so as to locate at one side of the plane 8. Each metal plate 1, 2 is taken as a stainless steel plate in about 0.1mm thickness. The powder brazing filler metal 9 made in a paste shape by kneading it with a resin binder is coated then on the step part 5 surface of the inner peripheral edge part 1a of the metal plate 1 and the outer peripheral end edge part 2b' surface of the outer peripheral edge part 2b of the metal plate 2 and the part joining by overlapping each other is joined by heating with pressure. A metal bellows is thus made by a simple work and jig.