Unlock instant, AI-driven research and patent intelligence for your innovation.

Device for detecting surface defects of hot rolled strip steel

A technology for hot-rolled strip steel and defect detection, which is applied in the direction of optical detection of defects/defects, and can solve the problems of inability to comprehensively evaluate product surface quality, defect types and defect quantitative description parameters, etc.

Inactive Publication Date: 2021-06-01
王玮佳
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the detection systems implemented by eddy current, infrared and magnetic flux leakage detection technologies are only suitable for some applications with low requirements. The limitations of the detection principle lead to extremely limited types of defects that can be detected and quantitative description parameters of defects, which cannot be integrated Evaluate the surface quality condition of the product

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for detecting surface defects of hot rolled strip steel
  • Device for detecting surface defects of hot rolled strip steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Please refer to Figure 1-Figure 2 ,in, figure 1 A functional block diagram of a preferred embodiment of the hot-rolled strip surface defect detection device provided by the present invention; figure 2 A schematic diagram of the positions of the two light sources, the line array camera and the hot-rolled strip of the hot-rolled strip surface defect detection device provided by the present invention, figure 2 The two sides are the light source, and the middle one is the line scan camera. The hot-rolled steel strip surface defect detection device includes: an image acquisition unit, a light source, an image processing unit and an output unit.

[0020] The image acquisition unit includes a line array camera, which is placed on one side of the hot-rolled strip, and is used to collect images of the surface of the hot-rolled strip, such as figur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
widthaaaaaaaaaa
Login to View More

Abstract

The invention provides a device for detecting surface defects of hot rolled strip steel. The device comprises an image acquisition unit, a light source, an image processing unit and an output unit. The device for detecting the surface defects of the hot-rolled strip steel has the advantages that the images of the surface of the hot-rolled strip steel are collected through a line-scan digital camera, and various defects such as cracks, inclusions, plaques, pits and iron oxide scale pressing-in on the surface of the hot-rolled strip steel can be automatically detected through a deep learning algorithm.

Description

technical field [0001] The invention relates to the technical field of detection of hot-rolled steel strips, in particular to a detection device for surface defects of hot-rolled steel strips. Background technique [0002] Hot-rolled strip steel generally refers to coiled strip steel with a thickness of 1-20 mm and a width of 600-2000 mm. The hot-rolled steel strip can be used directly as a hot-rolled steel plate, or it can be supplied as a cold-rolled steel strip as a billet. It is widely used in automobile, electrical machinery, chemical industry, shipbuilding and other industrial sectors, and it is also used as a blank for cold rolling, welded pipe, and cold-formed steel production. The quality of its surface will directly affect the performance and quality of the final product. However, the production process of hot-rolled strip steel is complicated, and it has high requirements on the production environment, and it is easy to produce defects due to mechanical, human o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88
CPCG01N21/88
Inventor 王玮佳
Owner 王玮佳