Method for modernizing a hot strip mill
Patent 4308739 Issued on January 5, 1982. Estimated Expiration Date: 
January 28, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 28, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References3803891 InventorAssigneeApplicationNo. 06/115611 filed on 01/28/1980US Classes:72/229, To reverse-roll the workpiece72/234Including successively-acting roller-couplesExaminersPrimary: Mehr, Milton S.Attorney, Agent or FirmInternational ClassesB21B 1/26 (20060101)B21B 1/34 (20060101) B21B 1/30 (20060101) AbstractStandard hot strip mills include a roughing train and a finishing train having a plurality of finishing stands F-1, F-2, F-3 . . . F-X. F-2 is eliminated from the finishing train and F-1 is converted into a reversing mill. Coiling furnaces are installed on either side of F-1 with the downstream coiling furnace replacing F-2. The resultant reversing mill and coiling furnaces are arranged so that a transfer bar is first reduced as it passes through F-1 in a forward direction and coiled in the downstream coiling furnace, then further reduced as it is passed in a reverse direction through F-1 to the upstream coiling furnace, then further reduced as it is passed the third time through F-1, and then further reduced to the final gauge as it passes successively through F-3 and the remainder of the finishing stands in the finishing train. | |
