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US 6,089,063 AGranted
Method of and apparatus for producing rolled or cast metal strip with descaled surfaces
AssigneeBWG Bergwerk- und Walzwerk-Maschinenbau GmbH
InventorsRolf Noe, Andreas Noe
Life of this patent
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Abstract
A method of descaling rolled or cast metal strip, especially stainless steel or titanium-alloy steel strip in which the initial descaling is effected in a stretch-bend leveler and the annealing furnace directly follows the stretch-bend leveler and is directly followed by a pickling station so that any shot blast or brush descaler upstream of the annealing furnace is not required.
Claims6
A strip descaling line comprising:
- an unwinding station for delivering a metal strip to be descaled;
- a stretch-bend leveler forming an initial descaler and traversed by the metal strip;
- an annealing furnace downstream of said stretch-bend leveler for directly annealing said metal strip after stretch-bend leveling thereof in said stretch-bend leveler and without intervening processing of the strip;
- a pickling station directly downstream from said annealing furnace and for pickling said strip after it has been annealed in said annealing furnace and without intervening processing of the strip;
- and
- a rewinding station for forming a coil from descaled strip from said pickling station.
3 more elements
A method of descaling rolled or cast metal strip which comprises the steps of:
- (a) initially descaling said metal strip by passing said metal strip through a stretch-bend leveler;
- (b) directly following the passage of said metal strip through said stretch-bend leveler and without intervening processing of the strip, annealing said metal strip;
- and
- (c) directly following annealing of said metal strip and without intervening processing of the strip, pickling said metal strip to yield a descaled strip product.
1 more element
Dependencies are inferred from the claim text.