Global Patent Index - EP 0571353 B2

EP 0571353 B2 2000-01-26 - Process of galvanizing a strip and arrangement for carrying out the process

Title (en)

Process of galvanizing a strip and arrangement for carrying out the process

Title (de)

Verfahren zum Verzinken eines Bandes sowie Anlage zur Durchführung des Verfahrens

Title (fr)

Procédé pour galvaniser un feuillard et installation pour la mise en oeuvre de ce procédé

Publication

EP 0571353 B2 (DE)

Application

EP 93890053 A

Priority

AT 65492 A

Abstract (en)

[origin: EP0571353A2] In a process for galvanising a strip (1) the strip (1) is continuously coated with zinc, is then, so as to form a Zn-Fe layer, subjected to a heat treatment in a continuous furnace (10, 11), followed by on-line monitoring of the zinc layer, the iron content of the zinc layer being measured and the galvanising operation being controlled as a function of the iron content of the zinc layer. In order to be able to manufacture a strip (1) having a defined layer structure ensuring uniform quality, a value of the iron content of the Zn-Fe layer is determined as a reference input variable, the actual value of the iron content of the Zn-Fe layer is compared with the reference input variable and any system deviation is compensated via a controller (19) by means of a change in the continuous furnace (10, 11) heating output which serves as the manipulated variable (Fig. 1). <IMAGE>

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

C23C 2/28

IPC 8 full level (invention and additional information)

C23C 2/06 (2006.01); C23C 2/28 (2006.01); C25D 7/06 (2006.01)

CPC (invention and additional information)

C23C 2/28 (2013.01)

Designated contracting state (EPC)

AT BE DE ES FR GB IT LU NL SE

DOCDB simple family

EP 0571353 A2 19931124; EP 0571353 A3 19940126; EP 0571353 B1 19960131; EP 0571353 B2 20000126; AT 133717 T 19960215; AT 397815 B 19940725; AT A65492 A 19931115; DE 59301528 D1 19960314; JP H06207297 A 19940726