ELEMENT FOR HEAT EXCHANGER AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To appropriately connect a header part by increasing amplitude of waves and heat transfer area. SOLUTION: In an element for heat exchanger, a flat flow passage is formed inside by connecting peripheral collars of a pair of corrugated metal plates facing each other and a header part 3 is provided at an end part. A corrugated heat transfer part 4 is extended to a header part 3 and wave is pressed down and contact-bonded at the header part and a flange part 10 is formed at its collar part. A pair of flange parts are overlapped each other and are fit with a groove-shape member 11 to be integrally welded by seam welding from an outer peripheral of the groove-shape member. COPYRIGHT: (C)2005,JPO&NCIPI