Hot-rolling mill and process for producing sheet metal
Patent 4580428 Issued on April 8, 1986. Estimated Expiration Date: 
July 27, 2004. 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.
July 27, 2004. 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 References 3331232 Plant and process for hot-rolling strip or plate stock Patent #: 4497191 InventorsAssigneeApplicationNo. 06/634963 filed on 07/27/1984US Classes:72/226, Plural roller-couples (e.g., successively or optionally usable)72/229, To reverse-roll the workpiece72/234Including successively-acting roller-couplesExaminersPrimary: Husar, Francis S.Assistant: Griffin, Jorji M. Attorney, Agent or FirmInternational ClassesB21B 1/30 (20060101)B21B 1/34 (20060101) B21B 1/26 (20060101) B21B 35/08 (20060101) B21B 35/04 (20060101) B21B 35/00 (20060101) Foreign Application Priority Data1981-03-25 ATAbstractA hot-rolling mill for producing sheet metal has a reversing roughing stand having pairs of roughing rolls and a reversing finishing stand adjacent thereto and having pairs of finishing rolls. Each stand is selectively operable alone and both stands are operable in tandem operation. The roughing rolls have diameters larger than the diameters of the finishing rolls and the finishing rolls operate at a higher rotary speed than the roughing rolls in the tandem operation. | |
