Surface hardening treatment device and surface hardening treatment method

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United States of America Patent

PATENT NO 11155891
APP PUB NO 20200190609A1
SERIAL NO

16628724

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Abstract

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Based on the nitriding potential in the processing furnace calculated by the in-furnace nitriding potential calculator and a target nitriding potential, an introduction amount of each of the plurality of furnace introduction gases is controlled by changing a flow rate ratio between the plurality of furnace introduction gases while keeping a total introduction amount of the plurality of furnace introduction gases constant, such that the nitriding potential in the processing furnace is brought close to the target nitriding potential.

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Patent Owner(s)

Patent OwnerAddress
PARKER NETSUSHORI KOGYO CO LTDTOKYO 103-0027

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hiraoka, Yasushi Tokyo, JP 25 299
Watanabe, Youichi Tokyo, JP 26 408

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