EP 1521855 A1 20050413 - VACUUM CARBURIZING METHOD AND DEVICE
Title (en)
VACUUM CARBURIZING METHOD AND DEVICE
Title (de)
VERFAHREN UND VORRICHTUNG ZUM UNTERDRUCKAUFKOHLEN
Title (fr)
PROCEDE ET DISPOSITIF DE CARBURATION SOUS DEPRESSION
Publication
Application
Priority
- DE 10232432 A 20020717
- EP 0307194 W 20030704
Abstract (en)
[origin: WO2004007779A1] The invention relates to a method and a device for carburizing at subatmospheric pressures. According to said method, a treatment gas containing hydrocarbons is supplied to a treatment chamber and an exhaust stream exits said chamber. The opacity of the gas atmosphere that prevails in the treatment chamber (3) and/or the opacity of the exhaust stream (4) that exits said chamber (3) is/are determined and the supply of the treatment gas (1) containing hydrocarbons to the treatment chamber (3) is regulated in accordance with the opacity that has been determined. If an opacity value that has been set or can be set is exceeded, the supply of the treatment gas (1) containing hydrocarbons to the treatment chamber (3) can be interrupted, or the quantity of treatment gas (1) containing hydrocarbons that is supplied to said chamber (3) can be reduced.
IPC 1-7
IPC 8 full level
C21D 1/773 (2006.01); C23C 8/20 (2006.01); C21D 11/00 (2006.01)
CPC (source: EP US)
C21D 1/773 (2013.01 - EP US); C23C 8/20 (2013.01 - EP US); C21D 11/00 (2013.01 - EP US)
Citation (search report)
See references of WO 2004007779A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004007779 A1 20040122; AU 2003246386 A1 20040202; DE 10232432 A1 20040129; EP 1521855 A1 20050413; US 2006108719 A1 20060525
DOCDB simple family (application)
EP 0307194 W 20030704; AU 2003246386 A 20030704; DE 10232432 A 20020717; EP 03763709 A 20030704; US 52143405 A 20051020