METHOD OF PRODUCING A PLATE HEAT EXCHANGER
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United States of America Patent
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Mar 11, 2016
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Apr 7, 2015
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Abstract
A method of producing a heat exchanger, comprising: obtaining a titanium plate that has been cladded with a melting depressant foil, and heat treated; pressing a pattern in the titanium plate; stacking the titanium plate on a number of similar titanium plates; heating the stack of titanium plates to a temperature above 850° C. and below the melting point of titanium, the melting depressant foil causing surface layers of the titanium plates to melt and flow to contact points between adjacent titanium plates; and allowing the melted titanium to solidify, such that joints are obtained at the contact points between adjacent titanium plates.
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