Process for manufacturing a coated metal strip of improved appearance
AssigneeArcelorMittal
InventorsLuc Diez, Jean-Michel Mataigne, Bertrand Orsal, Hubert Saint Raymond
Life of this patent
Estimating the term…
Abstract
An installation for continuous hot-dip coating of a metal strip is provided. The installation includes a tank containing a bath of molten metal, a metal strip running through the bath and a confined wiping device. The confined wiping device includes at least two wiping nozzles placed on each side of a path of the strip after the strip has left the bath of molten metal. Each nozzle has at least one gas outlet orifice and an upper face. The confined wiping device also includes a confinement box adjacent each upper face. The confinement boxes are open on a face which faces the strip. Each box includes at least one upper part and two lateral parts.
Claims26
An installation for the continuous hot-dip coating of metal strip, comprising:
- a tank containing a bath of molten metal;
- a metal strip running through the bath;
- and
- a confined wiping device comprising:
- a respective wiping nozzle placed on each side of a path of the strip after the strip has left the bath of molten metal, each wiping nozzle having at least one gas outlet orifice and an upper face;
- and
- a respective confinement box located adjacent the upper face of each wiping nozzle, wherein the confinement boxes open on a face which faces the strip, each confinement box including an upper part including a vertical plate and a horizontal plate, each confinement box further including two lateral parts, wherein each confinement box further includes a plurality of vertical blades extending from the upper face of the adjacent wiping nozzle up to the horizontal plate of the upper part of said each confinement box, said plurality of vertical blades located between the two lateral parts of said each confinement box, the vertical and horizontal plates extending continuously between the two lateral parts, wherein each confinement box consists of the vertical plate, the horizontal plate, the two lateral parts, and the plurality of vertical blades.
A confined wiping device comprising:
- a respective wiping nozzle placed on each side of a path of a strip after the strip has left a bath of molten metal, each wiping nozzle having at least one gas outlet orifice and an upper face;
- and
- a respective confinement box located adjacent the upper face of each wiping nozzle, the confinement boxes open on a face which faces the strip, each confinement box including an upper part including a vertical plate and a horizontal plate, each confinement box further including two lateral parts, wherein each of the confinement boxes further includes a plurality of vertical blades extending from the upper face of the adjacent wiping nozzle up to the horizontal plate of the upper part of said each confinement box, said plurality of vertical blades located between the two lateral parts of said each confinement box, the vertical and horizontal plates extending continuously between the two lateral parts, wherein each confinement box consists of the vertical plate, the horizontal plate, the two lateral parts, and the plurality of vertical blades.
Dependencies are inferred from the claim text.