Global patent index - EP 0971192 A1

EP 0971192 A1 2000-01-12 - Improvements in or relating to heating furnaces for iron and steel products

Title (en)

Improvements in or relating to heating furnaces for iron and steel products

Title (de)

Verbesserung an Wärmöfen für Eisenhüttenprodukte

Title (fr)

Perfectionnements apportés aux fours de réchauffage de produits sidérurgiques

Publication

EP 0971192 A1 (FR)

Application

EP 99401285 A

Priority

FR 9807374 A

Abstract (en)

[origin: FR2779742A1] A furnace for reheating steel products, reducing or eliminating production losses whilst reheating batches of products with differing thermal states introduced successively into the furnace incorporates at least two equalization zones. The zones may be traversed by the products at a different speed to the other zones, regulated as a function of the thermal target of the products being reheated. At least one of the zones is used as a heating zone.

Abstract (fr)

Perfectionnements apportés à un four de réchauffage de produits sidérurgiques en vue de réduire ou de supprimer les pertes de production lors du réchauffage de lots de produits dont l'état thermique est différent, introduits successivement dans le four, ces perfectionnements étant caractérisés en ce que ledit four comporte au moins deux zones d'égalisation (E1, E2): l'une au moins pouvant être traversée par les produits, à une vitesse différente de celle des autres zones, cette vitesse étant réglable en fonction de l'objectif thermique des produits à réchauffer, l'une au moins pouvant être utilisée comme zone de chauffage.

IPC 1-7 (main, further and additional classification)

F27B 9/20; C21D 9/00; C21D 9/70

IPC 8 full level (invention and additional information)

C21D 1/00 (2006.01); C21D 9/00 (2006.01); F27B 9/02 (2006.01); F27B 9/14 (2006.01); F27B 9/20 (2006.01); F27B 9/40 (2006.01)

CPC (invention and additional information)

C21D 9/0081 (2013.01); F27B 9/203 (2013.01); F27B 9/207 (2013.01); F27B 9/40 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE DE ES GB IT LU NL

EPO simple patent family

FR 2779742 A1 19991217; FR 2779742 B1 20000811; AT 259496 T 20040215; CN 1138963 C 20040218; CN 1239216 A 19991222; DE 69914677 D1 20040318; DE 69914677 T2 20050113; EP 0971192 A1 20000112; EP 0971192 B1 20040211; ES 2212490 T3 20040716; JP 2000008119 A 20000111; US 6238210 B1 20010529

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