Metal treatment – Compositions – Heat treating
Patent
1987-09-04
1989-08-01
Niebling, John F.
Metal treatment
Compositions
Heat treating
148 16, 20419235, C21D 138
Patent
active
048530468
ABSTRACT:
A heat treat process is disclosed for use in an ion glow discharge chamber for carburizing ferrous workpieces. The process provides rapid carburizing cycles by optimizing the power supplied to the glow discharge correlated to temperature and desired uniformity of the carbon gradient profile while also optimizing the mass flow of the substantially pure carbon bearing gas which is correlated to the desired uniformity of the carbon gradient profile.
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pp. A72-A75 of the Mar., 1986 issue of Industrial Heating article entitled "Greater Uniformity of Plasma Carburizing Rapidly", by Stephen H. Verhoff.
Tackett Garrol
Verhoff Stephen H.
Leader William T.
Niebling John F.
Surface Combustion, Inc.
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