EP 1544318 A4 20081231 - ATMOSPHERE HEAT TREATMENT COCATALYST, METHOD OF ITS APPLICATION, HEAT TREATMENT METHOD AND HEAT TREATMENT ATMOSPHERE OF USING THE COCATALYST

Title (en)

ATMOSPHERE HEAT TREATMENT COCATALYST, METHOD OF ITS APPLICATION, HEAT TREATMENT METHOD AND HEAT TREATMENT ATMOSPHERE OF USING THE COCATALYST

Title (de)

ATMOSPHûRENWûRMEBEHANDLUNGSCOKATALYSATOR, VERFAHREN ZU SEINER ANWENDUNG, WûRMEBEHANDLUNGSVERFAHREN UND WûRMEBEHANDLUNGSATMOSPHûRE DER VERWENDUNG DES COKATALYSATORS

Title (fr)

COCATALYSEUR DE TRAITEMENT THERMIQUE D'ATMOSPHERE, PROCEDE POUR SON APPLICATION, PROCEDE DE TRAITEMENT THERMIQUE ET ATMOSPHERE THERMOTRAITEE A L'AIDE DE CE COCATALYSEUR

Publication

EP 1544318 A4 20081231 (EN)

Application

EP 02750765 A 20020709

Priority

CN 0200486 W 20020709

Abstract (en)

[origin: EP1544318A1] The present invention provides operation methods of cocatalysts for atmosphere heat treatment. The cocatalyst are dissolved or dispersed into atmosphere material or atmosphere directly or indirectly, and the cocatalyst keep up the form of gas phase or finer dispersion (such as mote) and diffuse into atmosphere in heat treatment equipment or heat treatment gas-producing equipment so that cocatalyst have largest area contact with atmosphere material and atmosphere and play a catalysis and activation role to the atmosphere in the atmosphere heat treatment. Also the present invention provides a variety kind of cocatalysts for atmosphere heat treatment of metal material and the methods of atmosphere heat treatment.

IPC 1-7

C23C 8/20; C23C 8/24; C23C 8/30

IPC 8 full level

C21D 1/06 (2006.01); C21D 1/76 (2006.01); C23C 8/20 (2006.01); C23C 8/24 (2006.01); C23C 8/30 (2006.01); F27D 7/06 (2006.01)

CPC (source: EP)

C21D 1/763 (2013.01); C23C 8/20 (2013.01); C23C 8/24 (2013.01); C23C 8/30 (2013.01)

Citation (search report)

[X] GB 374096 A 19320526 - ELECTRO METALLURG CO
[X] US 4267205 A 19810512 - PASTOR RICARDO C, et al
[X] US 3837905 A 19740924 - HILE J, et al
[X] GB 190921419 A 19100526 - HODGKINSON WILLIAM RICHARD
[X] GB 875998 A 19610830 - BERGWERKSVERBAND GMBH
[X] US 3728168 A 19730417 - ALLEN L, et al
[X] GB 518726 A 19400306 - ROYSEL JOHN COWAN
[E] JP 2002256411 A 20020911 - NSK LTD
See references of WO 03006700A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

EP 1544318 A1 20050622; EP 1544318 A4 20081231; JP 2005532471 A 20051027

DOCDB simple family (application)

EP 02750765 A 20020709; JP 2003512456 A 20020709