Exhaust gas treatment article and methods of manufacturing same
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United States of America Patent
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Nov 5, 2019
Grant Date -
Mar 15, 2018
app pub date -
Mar 18, 2016
filing date -
Mar 23, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
An article, includes a porous ceramic honeycomb body and a housing disposed on at least one of an outer periphery of the porous ceramic honeycomb body and opposing end faces of the porous ceramic honeycomb body, wherein the housing exerts a compressive force on the porous ceramic honeycomb body in at least one of radial direction and axial direction. A method of making the article, includes heating to greater than or equal to about 200 C the housing, crimping the housing tightly around the honeycomb body while the housing is greater than or equal to about 200 C, and cooling the housing. The housing exerts a compressive force on the porous ceramic honeycomb body in at least one of radial direction and axial direction by shrinking on cooling more than the honeycomb body.
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