Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Keiji Yokose0
Hidetoshi Juryozawa0
Hisashi Ebihara0
Jun Takahashi0
Fumitaka Abukawa0
Date of Patent
August 18, 2009
Patent Application Number
10107206
Date Filed
March 28, 2002
Patent Primary Examiner
Patent abstract
The invention provides a carburization treatment method in which the carburization treatment is conducted under a condition where an atmosphere within the furnace is maintained at a high carbon potential which is slightly blow a carbon solid solubility. Preferably, the internal pressure within the furnace is kept at 0.1 to 101 kPa, the hydrocarbon gas is one, two or more than two kinds of gases selected from the group consisting of C3H8, C3H6, C4H10, C2H2, C2H4, C2H6 and CH4, while the oxidative gas is an air, an O2 gas, or CO2 gas.
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