Method for optimizing Parsytec on-line surface defect detection system

A surface detection and system optimization technology, applied in the field of thin plate rolling, can solve the problems that the detection system cannot stably improve the detection and judgment capabilities, cannot participate well, and lacks

Active Publication Date: 2012-05-30
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of systematic and scientific optimization methods, the online surface defect detection systems of many companies cannot stably improve the detection and judgment capabilities for a long time, so that they cannot participate in product quality management well

Method used

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  • Method for optimizing Parsytec on-line surface defect detection system
  • Method for optimizing Parsytec on-line surface defect detection system
  • Method for optimizing Parsytec on-line surface defect detection system

Examples

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Effect test

example 1

[0063] Example 1 Establishment and optimization of a warping defect classifier for cold-rolled base material

[0064] The Baishitai online surface defect detection system on the 2160 hot rolling production line of Shougang Qiangang has been debugged and optimized. The hardware maintenance and equipment calibration are as described in steps (1) and (2). This case focuses on the description of the material group as cold rolling The process of collecting warped skin defect pictures of the base material and establishing and optimizing the classifier.

[0065] (1) Defect verification and collection of typical defect samples

[0066] When carrying out defect verification, a large number of defect verifications have been carried out for edge warping defects. Figure 5 It is a typical picture of warped skin defects detected by Bepsitech system, attached Figure 6 to attach Figure 5 The real photo of the defect in the corresponding part of the steel coil. After it is determined th...

example 2

[0078] Example 2 Establishment and optimization of roll printing defect classifier for cold-rolled base material

[0079] The Baishitai online surface defect detection system on the 2160 hot rolling production line of Shougang Qiangang has been debugged and optimized. The hardware maintenance and equipment calibration are as described in steps (1) and (2). This example focuses on the description of the material group as cold rolling The process of collecting images of roll printing defects of the base material and establishing and optimizing the classifier.

[0080] (1) Defect verification and collection of typical defect samples

[0081] When roller printing defects occur, collect samples, and for the same roll of roller printing defects, collect no more than 2-3 roller printing defects. attached Figure 8 It is a typical roller printing defect.

[0082] (2) Build a classifier

[0083] When the number of roll printing samples reaches about 100, the defect features are suf...

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Abstract

The invention discloses a method for optimizing a hot rolling production line on-line surface defect detection system. The method mainly comprises the following steps of: (1) maintaining hardware; (2) calibrating equipment; (3) grouping materials; (4) verifying defect; (5) establishing and optimizing a classifier; and (6) performing post-treatment. By the method, the hot rolling production line on-line surface defect detection systemis optimized, so that the surface defect detection rate of the system can be increased to over 95 percent in a short time, the surface defect classification rate is increased to over 90 percent, and instantaneous, stable and accurate on-line surface defect detection and classification are realized.

Description

technical field [0001] The invention relates to an optimization method of an on-line surface defect detection system of PepsiCo, which belongs to the technical field of thin plate rolling. Background technique [0002] For cold-rolled sheets for automobiles and household appliances, the surface quality requirements are relatively high, and traditional manual visual inspection cannot meet the requirements of high-speed rolling at all. Therefore, the surface quality online inspection system has been put into use in the hot rolling, acid rolling, continuous annealing, galvanizing and other production lines of major domestic steel plants (Baosteel, Wuhan Iron and Steel, Anshan Iron and Steel) in recent years. [0003] After the surface quality inspection system is put into use, a lot of work must be carried out to adapt the system to the production line, grasp the characteristics of the surface defects on the production line, and perform correct detection and classification. Ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/88
Inventor 徐海卫李飞朱国森李本海焦会立胡志远安冬阳关建东李明余威李彬李瑞王伦李振山焦晋沙赵林
Owner SHOUGANG CORPORATION
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