Die for forming honeycomb structure and manufacturing method therefor
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United States of America Patent
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Apr 11, 2017
Grant Date -
Mar 26, 2015
app pub date -
Dec 1, 2014
filing date -
Jun 4, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A die for forming a honeycomb structure, including: a second plate-shaped portion that is formed of iron and the like and has back holes; and a first plate-shaped portion that is formed of tungsten carbide based cemented carbide and has cavities communicating with the back holes and slits communicating with the cavities, with the first plate-shaped portion having a first layer arranged in the second plate-shaped portion side and a second layer arranged on the first layer, the cavities are opened on both sides of the first layer, and the slits are opened on both sides of the second layer.
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