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A precision control method for ultra-flat and ultra-thin precision strip steel roll system for backlight panels

A technology of roll system and configuration method, applied in manufacturing tools, metal rolling, metal rolling, etc., can solve problems such as restricting the flatness of ultra-flat precision stainless steel products, high requirements for roll system configuration, and large deformation of rolling mill stands. , to solve the production bottleneck, stabilize the surface quality, and improve the product quality.

Active Publication Date: 2022-05-17
SHANXI TAIGANG STAINLESS STEEL PRECISION STRIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the currently configured rolling mills, such as the SUNDWIG four-column twenty-high-650 rolling mill, the overall rigidity of the rolling mill is poor, the deformation of the rolling mill stand is large during rolling, and the requirements for the configuration of the roll system are high. bottleneck

Method used

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  • A precision control method for ultra-flat and ultra-thin precision strip steel roll system for backlight panels
  • A precision control method for ultra-flat and ultra-thin precision strip steel roll system for backlight panels
  • A precision control method for ultra-flat and ultra-thin precision strip steel roll system for backlight panels

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Experimental program
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Effect test

Embodiment 1

[0057] In this embodiment, Sundewei four-column 20-high rolling mill is used. According to the production plate shape, the roll system that the rolling mill needs to be equipped with is: the diameter of the backup roll is 165mm, the driving roll of the second intermediate roll is a flat roll, and the free roll of the second intermediate roll The convexity is 0.2 mm, the taper of the first intermediate roll is 130×0.2 mm, and the working roll is a flat roll.

[0058] The equipment process of the roll train of the rolling mill of the present embodiment is as follows:

[0059] Select a 165mm backing bearing for assembly, first measure the runout value of the bearing, and the runout value is within 0.005mm.

[0060] The bearing diameters are arranged according to the backing bearing diameter as follows:

[0061]

[0062] Measure the middle of the driving roll of the second intermediate roll, the double 1 / 4 side and the two ends of the roll, numbered 1-5, and ensure that the di...

Embodiment 2

[0072] In this embodiment, stainless steel with a steel grade of SUS316L, a thickness of 0.15 mm, and a width of 510 m is selected as a raw material. Select the 165mm support roll, driving roll, free roll with a crown of 0.2mm, the first intermediate roll of 130×0.2mm, and the work roll that has been ground according to the precision requirements. Roll trains are assembled for rolling.

[0073] The rolling table is as follows:

[0074]

[0075] During the rolling process, the shape control is fully automatic, and the work rolls are replaced every two passes. The finished product pass is tested for rolling, and after the rolled plate shape is stable, stop the car to take a sample with a length of 1m, and observe the warpage of the steel strip. After inspection, the warpage of the steel plate is less than 5cm, and the wave height is less than 3IU. Continue rolling until the rolling is completed.

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Abstract

The invention relates to the technical field of stainless steel rolling technology and equipment, in particular to a precision control method for ultra-flat and ultra-thin precision strip steel rolls of a backlight plate. The roll train of the rolling mill of the present invention comprises a work roll, a first intermediate roll, a second intermediate roll and a backup roll, wherein the diameter deviation of the backup roll is not more than 0.02 mm; the diameter deviation of the drive roll of the second intermediate roll is not more than 10 microns and The diameter difference of the same roll is not more than 2 microns; the diameter difference of the free roll of the second intermediate roll is not more than 2 microns at the center line equidistant position; the diameter difference of the same roll of the first intermediate roll is not more than 2 microns; the same roll of the working roll The difference in diameter does not exceed 3 microns. With the aid of the rolling mill roll set and configuration method thereof of the present invention, the precision control of the ultra-flat and ultra-thin precision strip steel roll set for the backlight plate can be realized.

Description

technical field [0001] The invention relates to the technical field of stainless steel rolling technology and equipment, in particular to a precision control method for ultra-flat and ultra-thin precision strip steel rolls of a backlight plate. Background technique [0002] Ultra-flat and ultra-thin precision strip steel for backlight panels refers to ultra-flat stainless steel strip steel with a thickness of less than 0.1mm. This stainless steel is used for the bottom substrate of the display screen. Excellent flatness, high-strength mechanical properties and light and thin characteristics are favored by high-tech and cutting-edge markets. However, with the increasing market requirements for products, the requirements for the flatness of ultra-thin stainless steel strips are more refined and strict, and the market applications are more extensive. For example, electronic products such as conventional LED substrates, OLED curved screens, and folding mobile phone screens, The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B13/02B21B29/00
CPCB21B13/02B21B29/00
Inventor 王天翔李学斌任岩刘玉栋段浩杰韩小泉折启耀房旭张艳霞
Owner SHANXI TAIGANG STAINLESS STEEL PRECISION STRIP CO LTD
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