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Stable anti-shaking device of double-stand leveling unit band steel and control method thereof
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A stable control method and double-stand technology, applied in the direction of length measuring device, tension/pressure control, metal rolling, etc., to improve the quality of finished strip steel and solve the effect of tension control
Active Publication Date: 2014-07-23
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to provide a double-frame leveling unit strip stable anti-vibration device and control method. By adding a set of anti-vibration devices composed of four rollers between the double-frames, the problem of the double-frame leveling unit is solved. The vibration problem during the operation of the strip steel can solve the problems of the tension control between the strip steel stands, the position control of the rolling line, and the stable threading of the strip, and help realize the single-stand rolling of the double-stand skin pass unit and improve the quality of the finished strip steel
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Embodiment 1
[0069] Under the double-frame mode, the implementation process of the double-frame levelling unit strip steel stability control method of the present invention is as follows:
[0070] Step 1, collect the equipment parameters of the leveling unit, mainly including the distance between the leveling unit frames , determined to be 5m;
[0071] Step 2, determine the parameters of the anti-shake device, including: the diameter of the first roller 8 of the anti-shake device is φ260mm, the diameter of the second roller 9 is φ260mm, the diameter of the third roller 10 is φ260mm, and the surface of the roller is chrome-plated , the roll diameter value of the fourth roll 11 is φ200mm;
[0072] Step 3, collecting the characteristic parameters of the strip to be flattened, the yield strength of the flattened strip is 300 ;
[0073] Step 4, according to the process conditions, the intermediate tension between the racks is set to 100 ;
[0074] Step 5, given the value of ...
Embodiment 2
[0078] Under the single frame mode, the implementation process of the strip steel stability control method of the two-frame skin pass unit of the present invention is as follows:
[0079] Step 1, collect the equipment parameters of the leveling unit, mainly including the distance between the exit of No. 1 rack and the exit S roller , determined to be 6m;
[0080] Step 2, determine the parameters of the anti-shake device, including: the diameter of the first roller 8 of the anti-shake device is φ260mm, the diameter of the second roller 9 is φ260mm, the diameter of the third roller 10 is φ260mm, and the surface of the roller is chrome-plated , the roll diameter value of the fourth roll 11 is φ200mm;
[0081] Step 3, collecting the characteristic parameters of the strip to be flattened, the yield strength of the flattened strip is 200 ;
[0082] Step 4. According to the process conditions, the outlet tension between the No. 1 racks is set to 60 ;
[0083] Step 5, ...
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Abstract
The invention discloses a stable anti-shaking device of double-stand leveling unit band steel and a control method thereof. The anti-shaking device comprises four rollers, wherein the first roller (8) and the second roller (9) are located below a rolling line; the third roller (10) and the fourth roller (11) are located above the rolling line; the third roller realizes lifting through a hydraulic cylinder (12) and a synchronizing mechanism (13); the fourth roller realizes leveling as well as lifting up and pressing down in the tape threading process through the hydraulic cylinder; the third roller is located between the first roller and the second roller; the fourth roller is located above the second roller; in the rolling process of the leveler, the first roller, the second roller and the third roller operate and the fourth roller lifts up; and the anti-shaking device is mounted between a stand 1 and a stand 2 of the leveling unit. The stable anti-shaking device disclosed by the invention can be used for solving the problems of shaking in the operation process of the double-stand leveling unit band steel as well as tension control among the band steel stands and stable tape threading, realizes single-stand rolling of the double-stand leveling unit and improves the quality of the finished product of band steel.
Description
technical field [0001] The invention relates to an anti-vibration device and a control method thereof for the stable operation of strip steel of a double-frame levelling unit. Background technique [0002] In recent years, with the huge demand of household appliances, automobiles, electronics, aerospace and other industries, the production of strips has developed rapidly. At the same time, as most strip users shift from low-end to high-end, users have higher and higher requirements for the surface quality of strip steel. In this way, even a slight mechanical damage on the surface of the strip will greatly reduce the grade of the product and bring greater economic losses to the enterprise. As the last process closest to the finished product, leveling plays a decisive role in the final quality of the strip. In the past, for the double-stand skin pass unit, there is no special attachment between the stands, and the strip passes directly. Due to the large distance between...
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Application Information
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