Device and method for shifting work roll of cluster mill
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United States of America Patent
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Feb 10, 2004
Grant Date -
May 29, 2003
app pub date -
Mar 4, 2002
filing date -
Mar 27, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A roll shifting cylinder 14 is driven to pivot a lever arm 12, thereby shifting a work roll 1 via a thrust bearing 15. A control unit 27 performs auto-positioning control, based on a shift amount performance value of the thrust bearing 15 detected by a shift amount detection sensor 16, so as to obtain a target roll shift position. A constant clearance amount is maintained between an end surface of the work roll 1 and the thrust bearing 15 during a rolling operation, and a chockless mill is effectively used as a work roll shift mill.
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