Method for gaseous carburization of steel

Details Method for gaseous carburization of steel Method for gaseous carburization of steel

1988-04-25

1989-11-21

Roy, Upendra

Metal treatment

Compositions

Heat treating

148 13, 148 16, C23C 1110

Patent

active

048819824

ABSTRACT:
A method for gaseous carburization of steel, where, in a carbon-rich gaseous atmosphere, an article that is to be carburized is, in a first carburization phase, exposed to a carbon charge that is as great as possible, at the black limit, and, in a subsequent diffusion phase, a lower carbon charge that corresponds to the desired carbon content at the surface of the article is established, with carburization being regulated via the two target values carbon content at the surface and depth of carburization. In order, independent of the carbide limit, to provide a regulation with which it is possible to achieve in a straightforward manner, reliably and reproducibly, the desired carbon content curve (carbon profile) in the article, at least one further target value that is characteristic of the carbon content curve is used to regulate the carburization. When this additional target value is reached, the carbon level that characterizes the carburization phase is reduced, and the diffusion phase is initiated.

REFERENCES:
patent: 3925109 (1975-12-01), Nilsen
patent: 4108693 (1978-08-01), L'Hermite et al.
patent: 4168186 (1979-09-01), Limque et al.
patent: 4306918 (1980-04-01), Kaspersma et al.
patent: 4306919 (1981-12-01), Roberge et al.
patent: 4372790 (1983-02-01), Gohring et al.
patent: 4472209 (1984-09-01), Langerich et al.
patent: 4744839 (1988-05-01), Quelle
"Prozessrechner zur Steuerung des Diffusionsverlaufs wahrend der Aufkohlu, Dr.-Ing. J. Wunning, 1982, pp. 424-426, Zeitschrift Wirtschaftliche Fertigung-H.9.
"Oxygen Carbon Controller", Process-Electronic Analyse- und Regelgerate GmbH, Dr.-Ing. J. Wunning, 1983.

Affiliated with

Also associated with

Rating

Method for gaseous carburization of steel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for gaseous carburization of steel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for gaseous carburization of steel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1424019