Global Patent Index - EP 1134298 B1

EP 1134298 B1 2007-10-10 - Improvements in preheating metal strips, especially in galvanising or annealing lines

Title (en)

Improvements in preheating metal strips, especially in galvanising or annealing lines

Title (de)

Verbesserungen beim Vorwärmen von Metallbändern, insbesondere in Verzinkungs- oder Glühanlagen

Title (fr)

Perfectionnements apportés au préchauffage de bandes métalliques notamment dans des lignes de galvanisation ou de recuit

Publication

EP 1134298 B1 (FR)

Application

EP 01400142 A

Priority

FR 0002990 A

Abstract (en)

[origin: EP1134298A1] A method for the preheating of metal strip uses a preheating zone that can be divided into a plurality of zones of unitary length each corresponding with a burner. Each burner can be controlled individually with a fixed regime in order to precisely adjust the air/gas regulation and thus the resultant atmosphere in the furnace. A certain number of burners in the downstream part of the preheating zone are lit, the length of the zone of the furnace affected by the lit burners and the length of the recuperation zone are varied as a function of the calorific demand and each burner functions at full power and with a constant air/gas regulation. An Independent claim is included for a furnace using this method for preheating metal strip.

IPC 8 full level (invention and additional information)

C21D 9/56 (2006.01); C23C 2/02 (2006.01); C21D 1/52 (2006.01); C21D 1/76 (2006.01); C21D 11/00 (2006.01)

CPC (invention and additional information)

C21D 1/52 (2013.01); C21D 9/56 (2013.01); C21D 11/00 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

EP 1134298 A1 20010919; EP 1134298 B1 20071010; AT 375408 T 20071015; CN 1179056 C 20041208; CN 1315584 A 20011003; DE 1134298 T1 20020418; DE 60130823 D1 20071122; DE 60130823 T2 20080717; ES 2161660 T1 20011216; ES 2161660 T3 20080301; FR 2806097 A1 20010914; FR 2806097 B1 20020510; JP 2001294941 A 20011026; KR 100785255 B1 20071213; KR 20010088418 A 20010926; PT 1134298 E 20071024; US 2002162612 A1 20021107; US 6761779 B2 20040713

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