Metal treatment – Compositions – Heat treating
Patent
1981-10-07
1984-09-18
Sheehan, John P.
Metal treatment
Compositions
Heat treating
148 165, 148 166, C21D 100
Patent
active
044722095
ABSTRACT:
A method of carburizing a metal workpiece and a carburizing apparatus in which the workpiece, generally of steel, is introduced into an annealing oven and subjected to a high temperature in the presence of a carbon-containing gas mixture as a result of which the workpiece is hardened. According to the invention, one or more of the carbon-containing gas components of the mixture effective upon the surface of the work-piece, can be periodically and impulsively injected into the gas mixture for sudden increases in carbon potential followed by longer diffusion phase.
REFERENCES:
patent: Re29881 (1979-01-01), Westeren et al.
patent: 2886478 (1959-05-01), Beard
patent: 4035203 (1977-07-01), L'Hermite et al.
patent: 4049473 (1977-09-01), Davis et al.
patent: 4152177 (1979-05-01), Mantel et al.
patent: 4168186 (1979-09-01), Limque et al.
Conrad Rudiger
Danzer Wolfgang
Langerich Karlheinz
Dubno Herbert
Linde Aktiengesellschaft
Ross Karl F.
Sheehan John P.
Xaver Fendt & Co.
LandOfFree
Carburizing method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Carburizing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carburizing method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-792323