Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Detection method of micro-cracks in continuous casting slab section

A technology of tiny cracks and detection methods, applied in measuring devices, optical testing flaws/defects, instruments, etc., to reduce the over-detection of cracks and defects and improve the correct detection rate

Active Publication Date: 2017-10-31
BAOSHAN IRON & STEEL CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, for the detection of micro-crack defects in continuous casting slabs, there is currently no machine vision detection device that can eliminate the interference of false defects and achieve accurate detection.

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
  • Detection method of micro-cracks in continuous casting slab section
  • Detection method of micro-cracks in continuous casting slab section
  • Detection method of micro-cracks in continuous casting slab section

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. First of all, it should be noted that the present invention is not limited to the following specific embodiments. Those skilled in the art should understand the present invention from the spirit embodied in the following embodiments, and each technical term can be optimized based on the spirit of the present invention. broad understanding. The same or similar components in the figures are denoted by the same reference numerals.

[0036] Such as figure 1 and figure 2 As shown, a continuous casting slab micro-crack detection device according to an embodiment of the present invention includes a camera 1 , a light source 2 , an image acquisition card 3 , and a computer 4 . The camera 1 and the detection light source 2 are installed above...

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

No PUM Login to View More

Abstract

The present invention is a method for detecting micro-cracks in the section of continuous casting slabs, which is implemented by using a device for detecting micro-cracks in the section of continuous casting slabs. The device includes: camera, light source, image acquisition card, and computer; the detection method includes: edge detection, Gaussian filter , Gradient binarization, clustering, calculating crack width, comparing width with threshold and manual intervention, crack defect judgment, saving crack data or discarding non-crack data. The invention realizes accurate detection of tiny cracks in the section of continuous casting slabs, and avoids misjudgment and missed judgment of crack defects on the surface of continuous casting slabs; Make the right decision.

Description

technical field [0001] The invention relates to a material defect detection method, in particular to a strip material defect detection method. Background technique [0002] At present, the online detection system based on machine vision has been successfully applied to the production lines of various continuous strips such as strip steel, strip aluminum, copper foil, paper, plastic, etc., which can realize real-time and efficient detection of surface defects of these strips. This type of inspection equipment relies on high-speed cameras to take images of materials on the production line, and uses computers to analyze whether there are defects and what kind of defects exist. [0003] The currently developed surface quality detection devices based on machine vision are mostly used in the steel strip surface detection in the steel industry. Cracks often appear inside the continuous casting slab, and most of the cracks are very small, only a few tens of microns, smaller than a ...

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 Patents(China)
IPC IPC(8): G01N21/88G01B11/00
Inventor 石桂芬王国兴何永辉梁爽彭铁根宗德祥杨水山陈勇
Owner BAOSHAN IRON & STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com