Hot-rolling mill and process for producing sheet metal
AssigneeVoest-Alpine Aktiengesellschaft
InventorsFranz Brettbacher, Uwe Langer
Life of this patent
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Abstract
A hot-rolling mill for producing sheet metal has a reversing roughing stand having pairs of roughing rolls and a reversing finishing stand adjacent thereto and having pairs of finishing rolls. Each stand is selectively operable alone and both stands are operable in tandem operation. The roughing rolls have diameters larger than the diameters of the finishing rolls and the finishing rolls operate at a higher rotary speed than the roughing rolls in the tandem operation.
Claims3
A hot-rolling mill for producing sheet metal, comprising a reversing stand having pairs of roughing rolls and a reversing finishing stand adjacent thereto and having pairs of finishing rolls, the roughing rolls having diameters larger than the diameters of the finishing rolls and the finishing rolls being operable at a higher rotary speed than the roughing rolls, each of said stands being selectively operable alone and both stands being operable in tandem operation, and means for operating the finishing rolls at the higher rotary speed in the tandem operation.
In a hot-rolling process of producing sheet metal, comprising
- at least one roughing pass performed in a first reversing stand and
- at least one finishing pass performed in a second reversing stand disposed adjacent said first stand,
- the steps of performing
- said at least one roughing pass while said second stand is inoperative and subsequently performing said at least one finishing pass in said first and second stands in tandem operation.
Dependencies are inferred from the claim text.