EP0485686A1
Expired / Lapsed
EP
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Method of nitriding steel articles under pressure
Assignee: Evonik Operations GmbH
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Filing: 1991-03-16
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Granted: —
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Expires: 2011-03-16
Abstract
Abstract In gas-nitriding under pressure, thick nitride layers with very few pores are obtained in a short time, if a mixture of 5 to 95% by volume of ammonia and 95-5% by volume of nitrogen is used and the nitriding is carried out at constant pressure above 0.2 MPa.
Inventors
- 👤 Friedrich Dr. Dipl.-Phys. Preisser
- 👤 Rudolf Dr. Dipl.-Ing. Seif
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 04:09
CPC Classifications
C; C23; C23C; C23C8/00; C23C8/06; C23C8/08; C23C8/24; C23C8/26
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References Cited (Backward Citations)
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