Method and arrangement for annealing of strips
The invention is relating to an arrangement for annealing a strip ( 1 ) with direct resistance heating comprising at least two rotable supported rollers ( 2, 7; 8, 9; 12, 13; 17, 18, 19 ), where at least one of said rollers ( 2; 8, 9; 12, 13; 17, 18 ) is having a plurality of electrically conductive...
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Zusammenfassung: | The invention is relating to an arrangement for annealing a strip ( 1 ) with direct resistance heating comprising at least two rotable supported rollers ( 2, 7; 8, 9; 12, 13; 17, 18, 19 ), where at least one of said rollers ( 2; 8, 9; 12, 13; 17, 18 ) is having a plurality of electrically conductive segments ( 5 ) at the circumference of the said roller ( 2; 8, 9; 12, 13; 17, 18 ), which segments ( 5 ) are insulated from each other and where the electric current is conducted simultaneously to only a part of said electrically conductive segments ( 5 ) by at least one sliding contact ( 3, 4; 10, 11; 14, 15, 16 ) so that the electric contact to the segment ( 5 ) is made after the mechanical contact of the strip ( 1 ) and the electrical contact being disconnected from the segment ( 5 ) before the mechanical contact is disconnected. It is also relating to a method for annealing a strip ( 1 ). |
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