Method for preventing vibration of steel bar under high-speed rolling station of ultra-thin plate

Abstract

The invention relates to a method for the vibration of band steel in high-speed rolling process, wherein said method is characterized in that: the first frame inlet of cold rolling machine is arranged with three-roller stabilizer which comprise left low roller, right low roller and upper middle roller; the upper middle roller is above the left and right low rollers, and above the rolling line; the left and right low rollers are under the rolling line; the band steel is through between the upper middle roller and left low roller and right low roller, the upper middle roller is lifted by hydraulic cylinder; when in normal rolling, the upper middle roller compresses the band steel; the last frame outlet of machine has single-roller vibration resistor; when in normal rolling, the vibration-resistant roller extends out driven by the hydraulic cylinder, to tension the bane steel.

Description

technical field

[0001] The invention belongs to the field of high-speed rolling of ultra-thin plates, and in particular relates to a method for preventing chattering of strip steel under the working condition of high-speed rolling of ultra-thin plates. technical background

[0002] The rolling speed of modern tandem cold rolling mills is generally between 1500m / min and 3000m / min. For tandem cold rolling mills that produce extremely thin plates (thin plates below 0.4mm), in terms of production efficiency, the normal production speed is higher than that of ordinary cold rolling mills. plate. In the process of rolling extremely thin plates, under the action of various disturbance forces, the rolling mill is prone to treble or quintuple frequency flutter, which is transmitted to the connected racks through the tension between the racks, causing system vibration and resulting in strip thickness. Severely out of tolerance or even broken belt, damage equipment. Therefore, stable ...

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