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WO2015088089A8 - 강판의 결함 탐상 장치 및 방법 - Google Patents

강판의 결함 탐상 장치 및 방법 Download PDF

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Publication number
WO2015088089A8
WO2015088089A8 PCT/KR2013/012076 KR2013012076W WO2015088089A8 WO 2015088089 A8 WO2015088089 A8 WO 2015088089A8 KR 2013012076 W KR2013012076 W KR 2013012076W WO 2015088089 A8 WO2015088089 A8 WO 2015088089A8
Authority
WO
WIPO (PCT)
Prior art keywords
steel plate
magnetic flux
magnetic pole
flux leakage
defect
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2013/012076
Other languages
English (en)
French (fr)
Other versions
WO2015088089A1 (ko
Inventor
이주승
박창현
신건
최상우
강신환
배호문
오기장
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Priority to CN201380081616.XA priority Critical patent/CN105874329B/zh
Priority to US15/102,506 priority patent/US10088453B2/en
Priority to JP2016538612A priority patent/JP6248201B2/ja
Priority to EP13899072.6A priority patent/EP3081932B1/en
Publication of WO2015088089A1 publication Critical patent/WO2015088089A1/ko
Publication of WO2015088089A8 publication Critical patent/WO2015088089A8/ko
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

강판의 결함 탐상 장치 및 방법이 제공된다. 강판의 결함 탐상 장치는, 제1 자화극 및 제2 자화극을 통해 강판을 자화시키기 위한 자속을 발생시키는 자화부와, 발생된 자속이 결함을 통과할 때 누설되는 누설 자속의 세기를 검출하는 누설 자속 검출부를 포함하며, 누설 자속 검출부는, 제1 자화극 및 제2 자화극의 하부의 중앙에서 강판의 주행 방향 또는 반대 방향으로 이격되게 배치되되, 강판의 양면 중 자화부가 배치된 면의 반대면 쪽에 배치되는 제1 누설 자속 검출부와, 제1 자화극 또는 제2 자화극 중 적어도 어느 하나의 하부 방향에 배치되되, 강판의 양면 중 자화부가 배치된 면 쪽에 배치되는 제2 누설 자속 검출부를 포함함으로써, 낮은 증폭율로도 강판의 결함 검출이 가능하다.
PCT/KR2013/012076 2013-12-11 2013-12-24 강판의 결함 탐상 장치 및 방법 Ceased WO2015088089A1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201380081616.XA CN105874329B (zh) 2013-12-11 2013-12-24 检测钢板的缺陷的设备和方法
US15/102,506 US10088453B2 (en) 2013-12-11 2013-12-24 Apparatus and method of detecting defect of steel plate
JP2016538612A JP6248201B2 (ja) 2013-12-11 2013-12-24 鋼板の欠陥探傷装置及び方法
EP13899072.6A EP3081932B1 (en) 2013-12-11 2013-12-24 Apparatus and method of inspecting defect of steel plate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2013-0154036 2013-12-11
KR1020130154036A KR101657745B1 (ko) 2013-12-11 2013-12-11 강판의 결함 탐상 장치 및 방법

Publications (2)

Publication Number Publication Date
WO2015088089A1 WO2015088089A1 (ko) 2015-06-18
WO2015088089A8 true WO2015088089A8 (ko) 2015-08-13

Family

ID=53371376

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/012076 Ceased WO2015088089A1 (ko) 2013-12-11 2013-12-24 강판의 결함 탐상 장치 및 방법

Country Status (6)

Country Link
US (1) US10088453B2 (ko)
EP (1) EP3081932B1 (ko)
JP (1) JP6248201B2 (ko)
KR (1) KR101657745B1 (ko)
CN (1) CN105874329B (ko)
WO (1) WO2015088089A1 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016124522A1 (de) * 2016-12-15 2018-06-21 Thyssenkrupp Ag Verfahren zur Inspektion eines Stahlbands
US10408764B2 (en) 2017-09-13 2019-09-10 Applied Materials Israel Ltd. System, method and computer program product for object examination
CN111751440B (zh) * 2020-06-17 2022-07-01 清华大学 钢材缺陷内外磁扰动综合检测装置及检测方法

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Also Published As

Publication number Publication date
CN105874329A (zh) 2016-08-17
US20160313285A1 (en) 2016-10-27
WO2015088089A1 (ko) 2015-06-18
JP6248201B2 (ja) 2017-12-13
EP3081932B1 (en) 2021-03-10
EP3081932A1 (en) 2016-10-19
KR20150068157A (ko) 2015-06-19
CN105874329B (zh) 2019-03-01
JP2017501401A (ja) 2017-01-12
KR101657745B1 (ko) 2016-09-19
US10088453B2 (en) 2018-10-02
EP3081932A4 (en) 2016-12-21

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