METAL BASE PLATE MATERIAL FOR HEAT EXCHANGE PLATE
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United States of America Patent
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Issued Date -
Aug 6, 2020
app pub date -
Sep 27, 2018
filing date -
Oct 12, 2017
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Abstract
A metal base plate material includes trip-shaped first regions each having a plurality of first ridges arranged substantially parallel to each other and at substantially equal intervals such that an angle of intersection with a longitudinal direction is greater than or equal to 10° and less than or equal to 25°. Strip-shaped second regions each have a plurality of second ridges arranged substantially parallel to each other and at substantially equal intervals and angled to face the plurality of the first ridges in a crosswise direction. The first regions and second regions are separated by a gap regions therebetween, at substantially equal intervals. First ends on a downstream side of the plurality of the first ridges and second ends on a downstream side of the plurality of the second ridges are positioned differently from each other in the longitudinal directions.
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