WO2008126554A1 - 渦流検査方法、該渦流検査方法で検査した鋼管、及び該渦流検査方法を実施するための渦流検査装置 - Google Patents

渦流検査方法、該渦流検査方法で検査した鋼管、及び該渦流検査方法を実施するための渦流検査装置 Download PDF

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Publication number
WO2008126554A1
WO2008126554A1 PCT/JP2008/054335 JP2008054335W WO2008126554A1 WO 2008126554 A1 WO2008126554 A1 WO 2008126554A1 JP 2008054335 W JP2008054335 W JP 2008054335W WO 2008126554 A1 WO2008126554 A1 WO 2008126554A1
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WO
WIPO (PCT)
Prior art keywords
eddy current
current inspection
inspection method
hardness portion
carrying
Prior art date
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Ceased
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PCT/JP2008/054335
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English (en)
French (fr)
Inventor
Shigetoshi Hyodo
Satoshi Kureishi
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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Filing date
Publication date
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of WO2008126554A1 publication Critical patent/WO2008126554A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents

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  • 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

　磁性を有する金属材料に局部的に存在する高硬度部を確実に検出可能であると共に、高硬度部を除去するための手入れ処理を施した後に、該高硬度部が除去されているか否かを確実に確認することができる渦流検査方法を提供する。 　本発明に係る渦流検査方法は、金属材料Ｐに誘起された渦電流を一対の検出コイル１１ａ、１１ｂで検出して得られる差動信号に基づいて、局部的な高硬度部の有無を検知し、金属材料に誘起された渦電流を前記一対の検出コイルの内のいずれか一方で検出して得られる絶対値信号に基づいて、前記検知した局部的な高硬度部の位置を特定することを特徴とする。
PCT/JP2008/054335 2007-03-14 2008-03-11 渦流検査方法、該渦流検査方法で検査した鋼管、及び該渦流検査方法を実施するための渦流検査装置 Ceased WO2008126554A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-064844 2007-03-14
JP2007064844A JP4998821B2 (ja) 2007-03-14 2007-03-14 渦流検査方法及び該渦流検査方法を実施するための渦流検査装置

Publications (1)

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WO2008126554A1 true WO2008126554A1 (ja) 2008-10-23

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PCT/JP2008/054335 Ceased WO2008126554A1 (ja) 2007-03-14 2008-03-11 渦流検査方法、該渦流検査方法で検査した鋼管、及び該渦流検査方法を実施するための渦流検査装置

Country Status (2)

Country Link
JP (1) JP4998821B2 (ja)
WO (1) WO2008126554A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010050134A1 (ja) * 2008-10-28 2010-05-06 トヨタ自動車株式会社 渦流測定における周波数選定方法および焼き入れ深さ測定方法
JP2015508897A (ja) * 2012-02-23 2015-03-23 インスティトゥート ドクトル フェルスター ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト 貫通コイル構成、貫通コイル構成を有する試験装置、及び試験方法
WO2015072365A1 (ja) * 2013-11-18 2015-05-21 Ntn株式会社 渦流探傷装置

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* Cited by examiner, † Cited by third party
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WO2016057814A1 (en) * 2014-10-10 2016-04-14 Exxam Systems, LLC Eddy current pipeline inspection apparatus and method
US10746698B2 (en) 2017-01-31 2020-08-18 Exxam Systems, LLC Eddy current pipeline inspection using swept frequency
JP6948297B2 (ja) * 2017-09-04 2021-10-13 Ｊｆｅスチール株式会社 鋼板の製造方法、磁性材用表層硬さ計測装置及び鋼板の製造設備列
KR102164105B1 (ko) * 2018-11-30 2020-10-12 주식회사 포스코 강판 표면의 고경도 부위 검출 장치 및 방법
JP2021043160A (ja) * 2019-09-13 2021-03-18 日本製鉄株式会社 硬度変化部検出装置、硬度変化部検出方法及びプログラム
JP7095817B2 (ja) 2020-06-15 2022-07-05 Ｊｆｅスチール株式会社 機械的特性の計測装置、機械的特性の計測方法、物質の製造設備、物質の管理方法および物質の製造方法
EP4166252A4 (en) 2020-06-15 2023-11-29 JFE Steel Corporation Mechanical property measuring device, mechanical property measuring method, substance manufacturing facility, substance management method, and substance manufacturing method
US12099033B2 (en) 2020-06-15 2024-09-24 Jfe Steel Corporation Mechanical property measuring apparatus, mechanical property measuring method, substance manufacturing equipment, substance management method, and substance manufacturing method
KR20240093532A (ko) 2021-12-09 2024-06-24 제이에프이 스틸 가부시키가이샤 강판의 제조 방법 및 강판의 제조 설비열

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5026951B1 (ja) * 1969-02-10 1975-09-04
JPS6039552A (ja) * 1983-08-13 1985-03-01 Shimadzu Corp 渦流探傷装置
JPS60185158A (ja) * 1984-03-02 1985-09-20 Sumitomo Metal Ind Ltd 電磁誘導試験方法及び装置
JPS62174651A (ja) * 1986-01-28 1987-07-31 Suzuki Motor Co Ltd 磁性体の硬度判別方法およびその装置
JPH11189844A (ja) * 1997-12-25 1999-07-13 Kansai Electric Power Co Inc:The 耐溶融亜鉛めっき割れ性に優れる鉄塔用電縫鋼管及びその製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5026951B1 (ja) * 1969-02-10 1975-09-04
JPS6039552A (ja) * 1983-08-13 1985-03-01 Shimadzu Corp 渦流探傷装置
JPS60185158A (ja) * 1984-03-02 1985-09-20 Sumitomo Metal Ind Ltd 電磁誘導試験方法及び装置
JPS62174651A (ja) * 1986-01-28 1987-07-31 Suzuki Motor Co Ltd 磁性体の硬度判別方法およびその装置
JPH11189844A (ja) * 1997-12-25 1999-07-13 Kansai Electric Power Co Inc:The 耐溶融亜鉛めっき割れ性に優れる鉄塔用電縫鋼管及びその製造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010050134A1 (ja) * 2008-10-28 2010-05-06 トヨタ自動車株式会社 渦流測定における周波数選定方法および焼き入れ深さ測定方法
JP2010107214A (ja) * 2008-10-28 2010-05-13 Toyota Motor Corp 渦流測定における周波数選定方法および焼き入れ深さ測定方法
US8432161B2 (en) 2008-10-28 2013-04-30 Toyota Jidosha Kabushiki Kaisha Frequency selection method and hardening depth measurement method of eddy current measurement
JP2015508897A (ja) * 2012-02-23 2015-03-23 インスティトゥート ドクトル フェルスター ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト 貫通コイル構成、貫通コイル構成を有する試験装置、及び試験方法
WO2015072365A1 (ja) * 2013-11-18 2015-05-21 Ntn株式会社 渦流探傷装置
JP2015099043A (ja) * 2013-11-18 2015-05-28 Ntn株式会社 渦流探傷装置

Also Published As

Publication number Publication date
JP2008224495A (ja) 2008-09-25
JP4998821B2 (ja) 2012-08-15

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