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1. WO2006097237 - CONTROLLED THICKNESS REDUCTION IN HOT-DIP COATED HOT-ROLLED STEEL STRIP AND INSTALLATION USED THEREFOR

Publication Number WO/2006/097237
Publication Date 21.09.2006
International Application No. PCT/EP2006/002155
International Filing Date 09.03.2006
Chapter 2 Demand Filed 17.10.2006
IPC
C23C 2/20 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
2Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
14Removing excess of molten coatings; Controlling or regulating the coating thickness
16using fluids under pressure, e.g. air knives
18Removing excess of molten coatings from elongated material
20Strips; Plates
C23C 2/26 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
2Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
26After-treatment
CPC
C23C 2/02
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
2Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
02Pretreatment of the material to be coated, e.g. for coating on selected surface areas
C23C 2/14
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
2Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
14Removing excess of molten coatings; Controlling or regulating the coating thickness
C23C 2/26
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
2Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
26After-treatment
C23C 2/40
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
2Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
34characterised by the shape of the material to be treated
36Elongated material
40Plates; Strips
Applicants
  • SMS DEMAG AKTIENGESELLSCHAFT [DE]/[DE] (AllExceptUS)
  • WUPPERMANN STAAL NEDERLAND BV [NL]/[NL] (AllExceptUS)
  • KLÖCKNER, Hans-Georg [DE]/[DE] (UsOnly)
  • GRAMER, Andreas [DE]/[DE] (UsOnly)
Inventors
  • KLÖCKNER, Hans-Georg
  • GRAMER, Andreas
Agents
  • SIECKMANN, Ralf
Priority Data
10 2005 013 103.418.03.2005DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) KONTROLLIERTE DICKENREDUKTION BEI SCHMELZTAUCHBESCHICHTETEM WARMGEWALZTEM STAHLBAND UND HIERBEI EINGESETZTE ANLAGE
(EN) CONTROLLED THICKNESS REDUCTION IN HOT-DIP COATED HOT-ROLLED STEEL STRIP AND INSTALLATION USED THEREFOR
(FR) REDUCTION CONTROLEE D'EPAISSEUR POUR UN FEUILLARD D'ACIER LAMINE A CHAUD ET REVETU PAR IMMERSION A CHAUD ET INSTALLATION CORRESPONDANTE
Abstract
(DE)
Offenbart wird ein Verfahren zum Schmelztauchbeschichten von warmgewalztem Stahlband, wobei das Stahlband eine Beizstation, eine Spülstation, eine Trockenstation, einen Erwärmungsofen und dann ein Schmelzbad durchläuft, wobei die Fertigdicke und die Dickentoleranz des schmelztauchbeschichteten Stahlbandes durch eine kontrollierte Dickenreduktion in einem Walzgerüst in der Prozesslinie erreicht wird, bei der durch mindestens ein Dickenmessgerät im Auslauf des Walzgerüstes das Erreichen der Fertigdicke kontrolliert wird und Abweichungen von dieser nach oben oder unten als Stellsignal auf die Anstellung des Walzgerüstes zurückgeführt werden, um die Dickenreduktion entsprechend zu erhöhen oder zu reduzieren sowie eine Anlage zur Erzeugung eines derartigen Stahlbandes.
(EN)
The invention relates to a method for hot-dip coating hot-rolled steel strip, during which the steel strip passes through a pickling station, a rinsing station, a drying station, a heating furnace and then through a molten bath. The final thickness and the thickness tolerance of the hot-dip coated steel strip are achieved by a controlled thickness reduction in a roll stand in the process line. The achievement of the finished thickness is controlled by at least one thickness measuring unit at the outlet of the roll stand, and deviations upward or downward therefrom are fed back in the form of an actuating signal for actuating the roll stand in order to appropriately increase or decrease the thickness reduction. The invention also relates to an installation for producing a steel strip of the aforementioned type.
(FR)
L'invention concerne un procédé pour le revêtement par immersion à chaud de feuillard d'acier laminé à chaud. Selon ce procédé, le feuillard d'acier traverse une station de décapage, une station de rinçage, une station de séchage, un four de chauffage, puis un bain de fusion. L'épaisseur finale et la tolérance quant à l'épaisseur du feuillard d'acier revêtu par immersion à chaud sont obtenues par une réduction d'épaisseur contrôlée dans une cage de laminoir de la ligne de processus dans laquelle au moins une jauge de mesure d'épaisseur à la sortie de la cage de laminoir vérifie que l'épaisseur finale est atteinte, des écarts vers le haut ou le bas par rapport à cette épaisseur finale étant réintroduits en tant que signal de réglage pour l'ajustement de la cage de laminoir afin d'accroître ou de diminuer la réduction d'épaisseur en conséquence. L'invention concerne également une installation servant à produire un tel feuillard d'acier.
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