EP 1080243 A1 20010307 - LOW PRESSURE CARBONITRIDING METHOD FOR METAL ALLOY PARTS
Title (en)
LOW PRESSURE CARBONITRIDING METHOD FOR METAL ALLOY PARTS
Title (de)
VERFAHREN ZUM NIEDERDRÜCK-NITROCARBURIEREN METALLISCHER WERKSTÜCKE
Title (fr)
PROCEDE DE CARBONITRURATION A BASSE PRESSION DE PIECES EN ALLIAGE METALLIQUE
Publication
Application
Priority
- FR 9900998 W 19990427
- FR 9805311 A 19980428
Abstract (en)
[origin: WO9955928A1] The invention concerns a method for carbonitriding metal alloy parts which consists in treating said parts with a fuel mixture consisting of ethylene and hydrogen and with a nitriding gas consisting of ammonia, under pressure less than 100 hPa and at a temperature of about 750 to 1050 DEG C. The invention is particularly advantageous for treating passivable and stainless steel since it enables to attain very high surface enrichment in nitrogen.
IPC 1-7
IPC 8 full level
C23C 8/32 (2006.01)
CPC (source: EP)
C23C 8/32 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI LU PT
DOCDB simple family (publication)
FR 2777911 A1 19991029; FR 2777911 B1 20000728; AT E220732 T1 20020815; CA 2326239 A1 19991104; CA 2326239 C 20080219; DE 69902169 D1 20020822; DE 69902169 T2 20030227; EP 1080243 A1 20010307; EP 1080243 B1 20020717; ES 2179639 T3 20030116; PT 1080243 E 20021231; TW 460620 B 20011021; WO 9955928 A1 19991104
DOCDB simple family (application)
FR 9805311 A 19980428; AT 99915850 T 19990427; CA 2326239 A 19990427; DE 69902169 T 19990427; EP 99915850 A 19990427; ES 99915850 T 19990427; FR 9900998 W 19990427; PT 99915850 T 19990427; TW 88106769 A 19990427