Cold rolling mill to laminate a strip of steel, systems of tandem rolling mill and inverter, and methods of modifying a system of rolling mill and cold rolling mill operation of a

摘要

Cold rolling mill to laminate a strip of steel, systems of tandem rolling mill and inverter, and methods of modifying a system of rolling mill and operating a rolling mill cold.If you reduce the diameter of the work roll, rolling a strip of steel harder than ever, and rolling a strip of steel of the same hardness than before in a higher ratio of reduction can be achieved, while avoiding the lowering of productivity due to the use of A rolling mill working roller of small diameter as in the rolling mill of the type cluster.A rolling mill cold 51 to a strip metal laminar 1 minimum width of not less than 600 mm and a maximum width of not less than 1500 mm but not more than 1900 mm, comprises a pair of upper and lower intermediate rolls 2 to laminate the steel strip 1 to be laminated; a pair of The upper and lower intermediate rolls and supporting rolls 3 work 2.Respectively; a pair of upper and lower rollers 4, supporting the intermediate rolls 3, respectively; a device for displacement of the roll axial direction 23 for each of the intermediate rolls 3, and devices of deviation 10,11 for rolls of work rolls 2. Intermediate 3.Each of the rolls of work 2 has a diameter not less than 300 mm but not greater than 400 mm and each intermediate roller 3 has a diameter not less than 560 mm but not more than 690 mm.