EP 0516899 B1 19951011 - Method of nitriding steel.
Title (en)
Method of nitriding steel.
Title (de)
Verfahren der Nitrierung von Stahl.
Title (fr)
Procédé de nitration d'acier.
Publication
Application
Priority
- EP 91305033 A 19910604
- CN 91104154 A 19910624
Abstract (en)
[origin: EP0516899A1] This invention relates to a method for forming a uniform, deep nitride layer on and in steel works at low cost, wherein a steel work is fluorided in heated condition in an atmosphere of a mixed gas composed of fluorine gas and inert gas with or without nitrogen trifluoride gas and, then, nitrided in heated condition in an atmosphere of nitriding gas.
IPC 1-7
IPC 8 full level
C23C 4/02 (2006.01); C23C 4/18 (2006.01); C23C 8/02 (2006.01); C23C 8/26 (2006.01); C23C 8/34 (2006.01)
CPC (source: EP)
C23C 4/02 (2013.01); C23C 4/18 (2013.01); C23C 8/02 (2013.01); C23C 8/26 (2013.01); C23C 8/34 (2013.01)
Citation (examination)
EP 0481136 A1 19920422 - DAIDO OXYGEN [JP]
Designated contracting state (EPC)
AT CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0516899 A1 19921209; EP 0516899 B1 19951011; AT E129023 T1 19951015; CN 1032375 C 19960724; CN 1067929 A 19930113; DE 69113789 D1 19951116; DE 69113789 T2 19960425; DK 0516899 T3 19960226; ES 2082138 T3 19960316
DOCDB simple family (application)
EP 91305033 A 19910604; AT 91305033 T 19910604; CN 91104154 A 19910624; DE 69113789 T 19910604; DK 91305033 T 19910604; ES 91305033 T 19910604