Title:
EDGE DROP CONTROL METHOD FOR METALLIC STRIP
Document Type and Number:
Japanese Patent JP3260664
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the occurrence of the body elongation and ear of a metallic strip, thereby stabilizing operation by stopping feedback control and applying a specific fixed offset value to single trapezoidal work rolls, then executing shift movement when the joint part of the preceding metallic strip and succeeding metallic strip of cold rolling pass a rolling stand.
SOLUTION: The edge control applied to the stationary part thus far is stopped in a start position 6 at the rear end of the preceding material 1. The upper and lower roller roll shift is executed and held by applying the fixed offset value of 5 to 3 mm having the respective stop points of the upper and lower work roll shifts as start points. The edge drop control is reset in the end position 7 of the front end of the succeeding material 2. If the metallic strip widths of the preceding material 1 and the succeeding material 2 vary, the hold position at the front end of the succeeding material 2 of the upper and lower work rolls is corrected by half the difference in the width between the preceding material 1 and the succeeding material 2, by which the edge drop control is effectively exhibited.
More Like This:
| JP3309791 | BILLET END FORMING EQUIPMENT |
| JP3368573 | CONTINUOUS HOT ROLLING EQUIPMENT |
| JP2006239777 | METHOD FOR MANUFACTURING HOT-ROLLED STEEL SHEET |
Inventors:
Hisao Imai
Teruhiro Saito
Teruhiro Saito
Application Number:
JP19982497A
Publication Date:
February 25, 2002
Filing Date:
July 25, 1997
Export Citation:
Assignee:
Kawasaki Steel Co., Ltd.
International Classes:
B21B15/00; B21B37/00; B21B37/26; B21B37/28; B21B37/42; (IPC1-7): B21B37/28; B21B15/00; B21B37/00; B21B37/26; B21B37/42
Domestic Patent References:
| JP10166020A | ||||
| JP10192932A | ||||
| JP10192933A | ||||
| JP9253713A |
Attorney, Agent or Firm:
Eiichi Kobayashi