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Fixed point marking method for deformation detection of cold-rolled steel strip

A technology of cold-rolled steel strip and marking method, which is applied in the direction of measuring devices, instruments, and optical devices, which can solve the problems of difficult accurate alignment, direct corresponding analysis, and difficult detection results, and achieve the effect of avoiding differences

Inactive Publication Date: 2012-06-27
SHANDONG TAISHAN STEEL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this method is that the detected results are different due to different locations, and there are no records of the sampling points, so it is difficult to correspond the detection results with the locations of the sampling points, especially when the number of sampling points is large In this case, it is difficult to directly analyze the comprehensive deformation law of rolling force and tension in each pass during the rolling process, especially the complex deformation law of the reversible cold rolling process, which is even more difficult. accomplish

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  • Fixed point marking method for deformation detection of cold-rolled steel strip
  • Fixed point marking method for deformation detection of cold-rolled steel strip
  • Fixed point marking method for deformation detection of cold-rolled steel strip

Examples

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Effect test

Embodiment 1

[0012] The fixed-point marking method for cold-rolled steel strip deformation detection is characterized in that: figure 1 , It is to mark a row of positioning points on the raw material of the hot-rolled steel strip 1 at the same interval, then drill through holes 2 on the positioning points, the diameter of the through holes 2 is 3mm, and finally embed copper wires in the through holes 3 is fine. The embedded copper wire 3 marks the deformation of the raw material of the hot-rolled steel strip 1 at the location during the cold rolling process. After the cold rolling is completed, see figure 2 .

[0013] As an improvement of the present invention, the copper wire 3 is an annealed copper wire, and the copper wire 3 is an interference fit with the through hole 2 to ensure that it will not fall off during the rolling process.

[0014] The distance between adjacent through holes 2 is 100 cm.

[0015] The thickness of the hot-rolled raw material is 2.0mm, the width is 750mm, and the ...

Embodiment 2

[0017] The fixed-point marking method for cold-rolled steel strip deformation detection is to first mark a row of positioning points on the raw material of hot-rolled steel strip 1 at the same interval, then drill through holes 2 on the positioning points, and finally in the through holes Just insert the copper wire 3. Punching holes 2 and rolling are the same as in Example 1. Only the diameter of the through hole 2 is 2 mm and the distance between adjacent through holes 2 is 50 cm. The thickness of the hot-rolled raw material is 2.5mm, the width is 1520mm, and the thickness of the cold-rolled steel strip is 0.3mm.

Embodiment 3

[0019] The fixed-point marking method for cold-rolled steel strip deformation detection is to first mark a row of positioning points on the raw material of hot-rolled steel strip 1 at the same interval, then drill through holes 2 on the positioning points, and finally in the through holes Just insert the copper wire 3. Punching holes 2 and rolling are the same as in Example 1. Only the diameter of the through hole 2 is 4 mm and the distance between adjacent through holes 2 is 200 cm. The thickness of the hot-rolled raw material is 3.5mm, the width is 1250mm, and the thickness of the cold-rolled steel strip is 0.2mm.

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Abstract

The invention discloses a fixed point marking method for deformation detection of a cold-rolled steel strip. The method is characterized in that: a row of locating points are marked on a hot-rolled steel strip raw material according to the same spacing; through holes are drilled on the locating points, wherein the diameter of each through hole is 2 to 4 mm; and copper wires are embedded in the through holes. According to the fixed point marking method for deformation detection of a cold-rolled steel strip in the invention, compared with a currently employed method in which detection is directly carried out on a cold-rolled steel strip, the provided fixed point marking method has the following advantages that: because copper wire fixed point marks are arranged on a hot-rolled steel strip raw material as well as the color and plasticity of the copper sires are different from the color and the plasticity of the steel strip after the cold rolling, sampling and analyzing can be directly carried out in a one-to-one correspondence mode as well as a rule in a deformation process can be visually detected, so that it can be avoided that a difference of detection results occurs due to position dislocation.

Description

Technical field [0001] The invention relates to the technical field of testing steel strip cold-rolled deformation, in particular to a fixed-point marking method for cold-rolled steel strip deformation detection. Background technique [0002] In the experiment of studying the deformation law of cold-rolled steel strip, the direct detection method of cold-rolled steel strip is usually used. The main steps of this method include: first measuring the raw material of the steel strip, and then intercepting multiple passes during the rolling process. Samples of rolled steel strips are monitored and analyzed. The disadvantage of this method is that the detection results will vary depending on the location, and the sampling points are not recorded, so the detection results are difficult to correspond to the location of the sampling points, especially when the number of sampling points is large. It is even more difficult to align accurately. In this way, it is impossible to directly anal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16
Inventor 陈培敦陈坤庄栋栋马正伟谷国刚张恒伟谷国华刘祥银
Owner SHANDONG TAISHAN STEEL GROUP
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