| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a heat exchanger with good productivity and less pressure loss. SOLUTION: A corrugated element 8 is made by bonding a corrugated plate 6, which is formed by working a thin plate in a wave shape, to one side of a heat conductive, thin plate partition member 2, and an opened corrugated 4 is made by cutting and removing the respective crest parts of the corrugated plate 6 of the corrugation element 8. The opened corrugated elements 4 are piled up and bonded together such that flow channels defined by the cut corrugated plates 6 alternately cross each other and extend parallel to each other. The corrugated element is formed in a both side pasteboard structure and is cut horizontally at about a half of a corrugation height of its corrugated plate 6 to make two opened corrugation elements. The opened corrugation elements are piled up and bonded together such that flow channels defined by the cut corrugated plates alternately cross each other and extend parallel to each other.
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