Device for hydrodynamic stabilization of a continuously travelling metal strip

US10550459B2 · kind B2 · utility

Assignee

• CENTRE DE RECHERCHES MÉTALLURGIQUES ASBL—CENTRUM VOOR RESEARCH IN DE METALLURGIE VZW · BE

Inventors

• Maiwenn Tifenn Soazig Larnicol · Saint-Marc, BE
• Yves Hardy · Saint-Sauveur, CA
• Olivier Bregand · Sprimont, BE
• Pascal Gerkens · Baelen, BE

Key dates

• Filing date: Jan 10, 2017
• Grant date: Feb 4, 2020
• Expiry date: Jan 10, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05C11/04
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A facility for dip-coating a metal strip in continuous motion includes: a liquid coating metal bath from which the strip exits in a vertical strand; a bottom roller, a decambering roller, and, optionally, a stabilizing roller, all immersed in the liquid-metal bath; drying blades at an exit of the bath, for injecting compressed gas in order to remove excess coating that has not yet solidified so as to create a drying wave having a downward return stream of liquid metal; and a dissipating hydrodynamic-stabilization device placed between the drying blades and a last immersed roller, the dissipating hydrodynamic-stabilization device including a plurality of hydrodynamic pads for applying a load to at least one side of the metal strip and mounted so as to pivot around hinges so as to self-align the pads, the plurality of hydrodynamic pads extending transversely across a width of the strip.