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Method and device applied to limit variable-specification rolling of leveler

A technology of skin-pass mill and variable specification, applied in the field of skin-pass mill, can solve the problems of slowdown of annealing furnace and large strip cutting loss, and achieve the effect of ensuring running speed and solving speed reduction of annealing furnace

Active Publication Date: 2019-07-30
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method and device applied to the extreme variable specification rolling of the temper mill, which solves the problem of slowing down of the annealing furnace and large loss of strip cutting during the limit variable specification rolling of the temper mill in the prior art technical issues

Method used

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  • Method and device applied to limit variable-specification rolling of leveler
  • Method and device applied to limit variable-specification rolling of leveler
  • Method and device applied to limit variable-specification rolling of leveler

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Embodiment 1

[0052] figure 1 It is a schematic flow chart of a method applied to extreme variable-gauge rolling in a temper mill in an embodiment of the present invention. The embodiment of the present invention provides a method applied to the extreme variable specification rolling of the temper mill, such as figure 1 As shown, the method includes:

[0053] Step 110: Obtain the first steel strip and the second steel strip in the extreme variable-gauge rolling of the skin pass mill, wherein the first steel strip and the second steel strip are adjacent steel strips.

[0054] Step 120: Obtain the weld seam positions of the first steel strip and the second steel strip in real time.

[0055] Step 130: According to the weld position of the first steel strip and the second steel strip, switch the rolling mode between the first elongation rate and the second elongation rate, wherein the first elongation rate is less than The second elongation.

[0056] Specifically, when the temper mill under...

Embodiment 2

[0067] Based on the same inventive concept as the method applied to the extreme variable specification rolling of the temper mill in the foregoing embodiment, the present invention also provides a device applied to the extreme variable specification rolling of the temper mill, such as figure 2 As shown, the device includes:

[0068] The first obtaining unit 11, the first obtaining unit 11 is used to obtain the first steel strip and the second steel strip in the extreme variable-gauge rolling of the skin pass mill, wherein the first steel strip and the second strip The steel is the adjacent strip;

[0069] A second obtaining unit 12, the second obtaining unit 12 is used to obtain the weld seam positions of the first steel strip and the second steel strip in real time;

[0070] A first switching unit 13, the first switching unit 13 is used to set the rolling mode between the first elongation rate and the second elongation rate according to the weld position of the first steel ...

Embodiment 3

[0092] Based on the same inventive idea as the method applied to the extreme variable-size rolling of the temper mill in the foregoing embodiments, the present invention also provides a device applied to the extreme variable-size rolling of the temper mill, on which a computer program is stored , when the program is executed by the processor, the steps of any one of the above-mentioned methods applied to extreme variable-gauge rolling of the temper mill are realized.

[0093] Among them, in image 3 In, bus architecture (represented by bus 300), bus 300 may include any number of interconnected buses and bridges, bus 300 will include one or more processors represented by processor 302 and various types of memory represented by memory 304 circuits linked together. The bus 300 may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described herein. ...

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Abstract

The invention provides a method and a device applied to the limit variable-specification rolling of a leveler. The method comprises the steps of acquiring first band steel and second band steel duringthe limit variable-specification rolling of the leveler, wherein the first band steel and the second band steel are adjacent band steel; acquiring a welding seam position of the first band steel andsecond band steel in real time; and carrying out switching control on a rolling mode between a first elongation percentage and a second elongation percentage according to the welding seam position ofthe first band steel and second band steel, wherein the first elongation percentage is smaller than the second elongation percentage. The technical problems of speed reduction of an annealing furnaceand large loss of band steel cutting during the limit variable-specification rolling of the leveler are solved. The technical effects on adjusting a rolling force of the leveler through adjusting theelongation percentage, ensuring the operating speed of the annealing furnace, and avoiding the occurrence of the phenomena that the yield is influenced and the loss is caused since the operating speedof the annealing furnace needs to be reduced and disqualified parts of band heads and band tails need to be cut off during the limit variable-specification rolling are achieved.

Description

technical field [0001] The invention relates to the technical field of temper mills, in particular to a method and device applied to extreme variable specification rolling of temper mills. Background technique [0002] The tempering machine is an important part of the continuous annealing production line. It has the functions of flattening the plate shape, eliminating the yield platform, and transferring roughness. It is also a bridge connecting the annealing furnace and the exit section. Return to the normal operation of the production line. If the tempering machine is rolled with limit-changing specifications (such as ordinary steel connected to ultra-high-strength steel), due to the risk of weld seam breakage under the action of large rolling force and high tension, the tempering machine always opens the frame and waits for welding. When the seam passes through the tempering machine, the closed frame continues rolling. In this case, the speed of the annealing furnace is ...

Claims

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Application Information

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IPC IPC(8): B21B1/04B21B37/56
CPCB21B1/026B21B1/04B21B37/56
Inventor 李靖任伟超齐海峰王少飞张晓峰唐伟王飞关军王硕巫雪松李志强宁媛媛高岩
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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