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

A strip, high-speed technology, used in metal rolling, manufacturing tools, metal rolling, etc., can solve the problems of ultra-thin plate chatter, affecting the normal rolling of ultra-thin plates, tension fluctuations, etc., achieving significant rolling and reducing ultra-thin plates. Vibration and thin strip thickness difference control has remarkable effect

Active Publication Date: 2007-05-16
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For ultra-thin plates, the air flow will cause the ultra-thin plates to vibrate, which in turn will cause tension fluctuations, seriously affecting the normal rolling of ultra-thin plates

Method used

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

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Embodiment Construction

[0015] As shown in Figure 1, a kind of method that prevents the steel strip from vibrating under the high-speed rolling condition of extremely thin plate, in the first stand (being the first stand 1 of tandem cold rolling mill; the tandem cold rolling mill of the present embodiment includes 5 racks, i.e. the first rack 1, the second rack 2, the third rack 3, the fourth rack 4, the fifth rack 5) add a three-roller stabilizing device 6 at the entrance, and a three-roller stabilizing device 6 Comprising left lower roll 20, right lower roll 18 and an upper intermediate roll 19, upper intermediate roll is positioned at the center of left lower roll, right lower roll, and the upper intermediate roll of three-roll stabilizer is positioned at rolling line 21 (i.e. first rolling mill 1 and the strip center line between the fifth rolling mill 5), the lower left roll 20 and the lower right roll 18 of the three-roller stabilizing device 6 are positioned under the rolling line 21, and the s...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B39/02B21B39/14B21B1/40B21B28/00
Inventor 丁文红闵威陈行忠
Owner WISDRI ENG & RES INC LTD
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