Global Patent Index - EP 0753599 B1

EP 0753599 B1 19990407 - Method for producing corrosion and wear resistant protective coatings on iron based substrates

Title (en)

Method for producing corrosion and wear resistant protective coatings on iron based substrates

Title (de)

Verfahren zur Erzeugung von Korrosions- und Verschleissschutzschichten auf Eisenbasiswerkstoffen

Title (fr)

Procédé pour l'obtention de revêtements résistant à la corrosion et l'usure sur des substrats à base de fer

Publication

EP 0753599 B1 19990407 (DE)

Application

EP 96110790 A 19960704

Priority

DE 19525182 A 19950711

Abstract (en)

[origin: EP0753599A1] The method concerns production of corrosion and wear resistant layers on ferrous material, according to which near-surface regions are enriched with nitrogen, carbon and oxygen. It is characterized by the following process steps: (a) carbonitration of the material to produce a connector layer consisting of iron carbonitrides; (b) activation of the material surface by a low-pressure plasma-assisted process; (c) oxidation of the material to produce a closed oxide layer. Also claimed is an appts. for implementation of the method in which processes at normal and low pressures can be carried out.

IPC 1-7

C23C 8/34

IPC 8 full level

C23C 8/22 (2006.01); C23C 8/32 (2006.01); C23C 8/34 (2006.01); C23C 8/38 (2006.01); C23C 16/36 (2006.01)

CPC (source: EP KR US)

C23C 8/32 (2013.01 - KR); C23C 8/34 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE DE FR GB IT NL

DOCDB simple family (publication)

EP 0753599 A1 19970115; EP 0753599 B1 19990407; EP 0753599 B2 20050413; AT E178659 T1 19990415; BR 9603031 A 19980505; CA 2180927 A1 19970112; CA 2180927 C 20061003; DE 19525182 A1 19970116; DE 19525182 C2 19970717; DE 59601585 D1 19990512; JP 3185015 B2 20010709; JP H09104960 A 19970422; KR 100245361 B1 20000302; KR 970006536 A 19970221; US 5679411 A 19971021

DOCDB simple family (application)

EP 96110790 A 19960704; AT 96110790 T 19960704; BR 9603031 A 19960709; CA 2180927 A 19960710; DE 19525182 A 19950711; DE 59601585 T 19960704; JP 20751596 A 19960704; KR 19960027296 A 19960705; US 68092696 A 19960711