COLD ROLLED MATERIAL MANUFACTURING EQUIPMENT AND COLD ROLLING METHOD

摘要

Cold rolled material manufacturing equipment comprises: an unwinding device for unwinding a hot rolled coil after acid pickling; joining means, disposed on the exit side of the unwinding device, for joining the tail end of a preceding coil to the leading end of a succeeding coil unwound from the unwinding device; a rolling mill for continuously rolling the coils in one direction; a strip storage device, disposed between the joining means and the rolling mill, for storing a strip to perform continuous rolling during the joining; a strip cutting device for cutting the strip to a desired length; a winding device for winding the rolled coil; transport means for transporting the coil to the unwinding device so that the coil is rolled a plurality of times; and a rolling speed control device for controlling a rolling speed during the joining to a lower speed than a steady rolling speed.

主权项

1. Cold rolled material manufacturing equipment, comprising:
an unwinding device for unwinding a hot rolled coil after acid pickling; joining means, disposed on an exit side of the unwinding device, for joining a tail end of a preceding coil to a leading end of a succeeding coil unwound from the unwinding device; a rolling mill or a plurality of rolling mills for continuously rolling the coils, with the leading end of the coil and the tail end of the coil being joined, in one direction; a strip storage device, disposed between the joining means and the rolling mill, for storing a strip in order to perform continuous rolling by the rolling mill during joining of the preceding coil and the succeeding coil by the joining means; a strip cutting device, disposed on an exit side of the rolling mill, for cutting the strip to a desired length; a winding device for winding the rolled coil; transport means for withdrawing the coil from the winding device, and transporting the withdrawn coil to the unwinding device so that the coil is rolled a plurality of times until a strip thickness of the coil reaches a desired product strip thickness; and a rolling speed control device for controlling a rolling speed during joining of the tail end of the preceding coil to the leading end of the succeeding coil to a lower speed than a steady rolling speed.