CPC B21D 53/04 (2013.01) [Y10T 29/18 (2015.01)] | 11 Claims |
1. A method of manufacturing a heat and humidity exchange plate for an air-to-air counterflow enthalpy heat exchanger, the method comprising the following steps:
(a) continuously forming a supporting member of the exchange plate in a form of an expanded metal structure from a strip of metal foil by sitting the metal foil in a transverse direction, then stretching the metal foil in a longitudinal direction, and then rolling over an entire width of the strip of stretched metal foil;
(b) annealing the expanded metal structure;
(c) providing a vapour-permeable polymeric membrane on the annealed expanded metal structure;
(d) forming corrugated and embossed shaped elements on the annealed expanded metal structure with the vapour-permeable polymeric membrane applied thereon by means of omnidirectional deformation; and
(e) creating a circumferential shape of the exchange plate by removing excess edges from the annealed expanded metal structure with the vapour-permeable polymeric membranes.
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