EP 1280943 A1 20030205 - LOW-PRESSURE CARBURISING METHOD
Title (en)
LOW-PRESSURE CARBURISING METHOD
Title (de)
VERFAHREN ZUR NIEDERDRUCK-AUFKOHLUNG
Title (fr)
PROCEDE DE CEMENTATION BASSE PRESSION
Publication
Application
Priority
- FR 0200674 W 20020222
- FR 0102513 A 20010223
Abstract (en)
[origin: US7118634B2] The invention relates to a low-pressure carburising method comprising alternating low-pressure enrichment steps and diffusion steps in the presence of a neutral gas. During the enrichment steps, an enriching gas and neutral gas mixture is used, the proportion of the neutral gas being between 5 and 50% by volume of the enriching gas. The enriching gas can be, for example, acetylene (C<SUB>2</SUB>H<SUB>2</SUB>).
IPC 1-7
IPC 8 full level
C23C 8/22 (2006.01)
CPC (source: EP KR US)
C23C 8/22 (2013.01 - EP KR US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
US 2003168125 A1 20030911; US 7118634 B2 20061010; AT E377097 T1 20071115; BR 0204223 A 20030218; CA 2407372 A1 20020906; CA 2407372 C 20110419; CN 1220788 C 20050928; CN 1457373 A 20031119; DE 60223202 D1 20071213; DE 60223202 T2 20080814; EP 1280943 A1 20030205; EP 1280943 B1 20071031; ES 2295315 T3 20080416; FR 2821362 A1 20020830; FR 2821362 B1 20030613; JP 2004519556 A 20040702; JP 3833615 B2 20061018; KR 100875547 B1 20081224; KR 20030014204 A 20030215; MX PA02010434 A 20030425; PL 356901 A1 20040712; WO 02068707 A1 20020906
DOCDB simple family (application)
US 25841003 A 20030506; AT 02704886 T 20020222; BR 0204223 A 20020222; CA 2407372 A 20020222; CN 02800383 A 20020222; DE 60223202 T 20020222; EP 02704886 A 20020222; ES 02704886 T 20020222; FR 0102513 A 20010223; FR 0200674 W 20020222; JP 2002568800 A 20020222; KR 20027014044 A 20020222; MX PA02010434 A 20020222; PL 35690102 A 20020222