EP 2881493 B1 20160824 - Process for the nitrocarburization of a deep drawn article or a bent pressed article made of austenitic stainless steel
Title (en)
Process for the nitrocarburization of a deep drawn article or a bent pressed article made of austenitic stainless steel
Title (de)
Verfahren zur Nitrocarburierung eines Tiefziehartikels oder eines Stanzbiegeartikels aus austenitischem nichtrostendem Edelstahl
Title (fr)
Procédé de nitrocarburation d'un article thermoformé ou d'un article plié-découpé à partir d'acier inoxydable austénitique
Publication
Application
Priority
EP 13196075 A 20131206
Abstract (en)
[origin: CN104694873A] A method for the nitro-carburization of a deep-drawn article or a stamped-bent article made of austenitic rustproof stainless steel includes inserting the article into an oven in a first process step and heating the article to a first temperature, wherein an oxygen containing standard atmosphere that is present in the oven is replaced by a first gas mixture, and in which the article is heated up to a second temperature in a second process step, wherein the first gas mixture is replaced by a second gas mixture, and in which the article is maintained on the second temperature in a third process step, wherein the article is treated with the second gas mixture, and in which the article is cooled down to a third temperature in a fourth process step, wherein the second gas mixture is replaced by a third gas mixture.
IPC 8 full level
CPC (source: CN EP US)
C23C 8/02 (2013.01 - CN EP US); C23C 8/10 (2013.01 - CN EP US); C23C 8/32 (2013.01 - CN EP US); C23C 8/34 (2013.01 - CN EP US); C23C 8/80 (2013.01 - CN EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2881493 A1 20150610; EP 2881493 B1 20160824; CN 104694873 A 20150610; CN 104694873 B 20180316; PL 2881493 T3 20170228; US 2015159262 A1 20150611; US 9738964 B2 20170822
DOCDB simple family (application)
EP 13196075 A 20131206; CN 201410734836 A 20141204; PL 13196075 T 20131206; US 201414557592 A 20141202