Method and device for hot dip coating a metal strand

C - Chemistry – Metallurgy – 23 – C

Patent

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Details

C23C 2/14 (2006.01) C23C 2/00 (2006.01) C23C 2/24 (2006.01)

Patent

CA 2506389

The invention relates to a method for hot-dip coating a metal bar (1), particularly a steel strip, according to which at least some sections of the metal bar (1) are vertically directed through a container (3) receiving the molten coating metal (2) at a given conveying speed (v). In order to influence the quality of the coating process, the time (t) during which the metal bar (1) remains in the molten coating metal (2) is predefined by controlling or regulating the surface level (h) of the molten coating metal (2) in the container (3). The invention also relates to a device for hot-dip coating a metal bar.

La présente invention concerne un procédé de revêtement par immersion en bain de fusion d'un boyau de métal (1), notamment d'un boyau d'acier, le boyau de métal (1) passant au moins par parties, dans une direction verticale, par un réservoir (3) contenant le métal de revêtement en fusion (2), avec une vitesse de déplacement prédéterminée (v). Selon l'invention, pour agir sur la qualité du processus de revêtement, le temps de séjour (t) du boyau de métal (1) dans le métal de revêtement en fusion (2) est prédéterminé par commande ou régulation de la hauteur (h) du niveau de métal de revêtement en fusion (2) dans le réservoir (3). L'invention a également pour objet un dispositif de revêtement par immersion en bain de fusion d'un boyau de métal.

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