The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2001
Filed:
Dec. 06, 1999
Masashi Tsugeno, Mitaka, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A tandem rolling mill (FM) has mill stands (Fi; i=1 to 7) to be controlled in conformity with given rolling conditions (j) to execute a given path schedule for a coil (,) to be rolled by rolls (WR) of the mill stands (Fi) to scheduled thicknesses (h,) at exit sides of the mill stands (Fi), with scheduled peripheral speeds (V,) of the rolls (WR). The mill stands (Fi) are checked for non-conformity with any rolling condition (j), correction amounts (&Dgr;&ggr;,) are calculated of normalized values (&ggr;,) of rolling forces (P,) of non-conforming mill stands (Fi*), as necessary to meet any rolling condition (j*), the normalized values (&ggr;,) are corrected by a maximal one of the correction amounts (&Dgr;&ggr;,) to provide corrected values as targets (&ggr;,) to be achieved at the non-conforming stands (Fi*), and the given path schedule is re-scheduled to achieve the targets (&ggr;,) by determining re-scheduled thicknesses (h,) of the coil (,) and re-scheduled peripheral speeds (V,) of the rolls (WR), both independently defining a mass flow of the coil (,) to be constant at the respective mill stands (Fi).