Molding Die for Fuel Cell Bipolar Plate, Manufacturing Method of Fuel Cell Bipolar Plate, and Fuel Cell Bipolar Plate
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United States of America Patent
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Issued Date -
May 7, 2009
app pub date -
May 25, 2006
filing date -
May 25, 2005
priority date (Note) -
Abandoned
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Abstract
To obtain a fuel cell bipolar plate of high quality and high productivity with less deformation, warpage, and cracking at the time of product removal from a die by making equal the density balance between a gas flow passage groove part area and a surrounding part area on the surface of the bipolar plate. on each of the front and rear surfaces at the time of die opening for molded product removal after compression molding.
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