ORIGINAL PLATE MATERIAL FOR HEAT-EXCHANGING PLATE AND HEAT-EXCHANGING PLATE USING THE SAME
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United States of America Patent
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Issued Date -
Jul 24, 2014
app pub date -
Sep 14, 2012
filing date -
Sep 16, 2011
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Abstract
An original plate material for a heat exchanging plate includes a titanium flat plate material including a minute recess and projections on the surface thereof, and the flat plate material is press-worked to obtain the heat exchanging plate. The shape parameter, defined as [height (μm) of the projections]×[width (μm) of the recess/pitch (μm) of adjacent projections], is 85 μm or less. Relating to this original plate material for a heat exchanging plate, the shape parameter, defined as [height (μm) of the projections]×[width (μm) of the recess/pitch (μm) of adjacent projections/angle (deg) of the projections], is 0.94 μm/deg or less.
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