Method and device for tension levelling cold-strip

Details Method and device for tension levelling cold-strip Method and device for tension levelling cold-strip

B - Operations, Transporting

21

D

B21D 1/05 (2006.01)

Patent

CA 2420353

The invention relates to a method for tension levelling a cold-rolled strip, whereby the strip passes through a series of brake rolls and a series of traction rolls and in the course of its extension is subjected to traction between the two series of rolls. The strip is bent under traction in a series of high-traction rolls, located between the brake roll and the traction roll series, in order to increase the degree of levelling. To achieve this, the series of high-traction rolls between the brake and the traction rolls has at least two traction rolls for generating the strip traction and bending operation.

L'invention concerne un procédé de dressage par étirage de feuillards laminés à froid. Le feuillard traverse un jeu de rouleaux de freinage et un jeu de rouleaux de traction et, au cours de son étirage, il est soumis à un pliage sous traction dans un jeu de rouleau de forte traction, destiné à augmenter son degré d'étirage et implanté entre le jeu de rouleaux de freinage et le jeu de rouleaux de traction. Pour ce faire, le jeu de rouleaux de forte traction implanté entre le jeu de rouleaux de freinage et le jeu de rouleaux de traction présente au moins deux rouleaux de traction placés pour produire un étirage et un pliage.

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