JPWO2015137200A1 - 鋼管の表面検査方法、表面検査装置、製造システム、欠陥発生部位特定方法、及び製造方法 - Google Patents
鋼管の表面検査方法、表面検査装置、製造システム、欠陥発生部位特定方法、及び製造方法 Download PDFInfo
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- JPWO2015137200A1 JPWO2015137200A1 JP2015536697A JP2015536697A JPWO2015137200A1 JP WO2015137200 A1 JPWO2015137200 A1 JP WO2015137200A1 JP 2015536697 A JP2015536697 A JP 2015536697A JP 2015536697 A JP2015536697 A JP 2015536697A JP WO2015137200 A1 JPWO2015137200 A1 JP WO2015137200A1
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 125
- 239000010959 steel Substances 0.000 title claims abstract description 125
- 230000007547 defect Effects 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims description 58
- 238000007689 inspection Methods 0.000 title claims description 54
- 238000004519 manufacturing process Methods 0.000 title claims description 29
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 19
- 238000009826 distribution Methods 0.000 claims abstract description 13
- 230000009467 reduction Effects 0.000 claims abstract description 13
- 238000012935 Averaging Methods 0.000 claims abstract description 3
- 238000001514 detection method Methods 0.000 claims description 16
- 238000012937 correction Methods 0.000 claims description 14
- 238000003384 imaging method Methods 0.000 claims description 11
- 238000009628 steelmaking Methods 0.000 claims description 6
- 230000000737 periodic effect Effects 0.000 claims 1
- 230000008569 process Effects 0.000 description 19
- 238000005096 rolling process Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 14
- 238000012545 processing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000003303 reheating Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000015654 memory Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/48—Thermography; Techniques using wholly visual means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/93—Detection standards; Calibrating baseline adjustment, drift correction
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
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- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Description
継目無鋼管の製造システムにおいて、レデューサの後面に近赤外域に感度を持つCMOSカメラを設置した。この熱画像カメラの全面に可視光をカットするフィルタを取り付け、波長700nm以上の近赤外域で撮像を行った。なお、使用する波長はさらに長くても良く、波長20μm以下の赤外域でも良い。鋼管の搬送速度に合わせて自発光画像間に抜けがないように撮像タイミングの間隔を設定し、鋼管の長手方向の100mm〜500mm程度の位置を1mmピッチの解像度で撮像した。材料の温度域は600℃〜1000℃である。
2 加熱炉
3 ピアサー(穿孔機)
4 マンドレルミル
5 再加熱炉
6 レデューサ
7 冷却床
10 表面検査装置
11 熱画像カメラ
12 制御装置
13 制御ケーブル
Claims (10)
- 熱間で鋼管の表面欠陥を探傷する鋼管の表面検査方法であって、
熱間で鋼管の自発光画像を撮像する撮像ステップと、
前記自発光画像の周方向の輝度ムラを均一化して補正する補正ステップと、
前記補正ステップで補正された自発光画像に基づいて表面欠陥を検出する検出ステップと、
を含むことを特徴とする鋼管の表面検査方法。 - 前記自発光画像はレデューサの後面の位置で撮像されることを特徴とする請求項1に記載の鋼管の表面検査方法。
- 前記レデューサによる前記鋼管の減径率が110%以上であることを特徴とする請求項1または2に記載の鋼管の表面検査方法。
- 前記補正ステップにおいて、前記自発光画像の前記鋼管の長手方向の輝度を平均化した周方向輝度分布を用いて該自発光画像の周方向の輝度ムラを均一化することを特徴とする請求項1〜3のいずれか1項に記載の鋼管の表面検査方法。
- 前記補正ステップにおいて、前記鋼管の長手方向の位置を変えて撮像された複数枚の前記自発光画像の輝度の差分を用いて該自発光画像の周方向の輝度ムラを均一化することを特徴とする請求項1〜3のいずれか1項に記載の鋼管の表面検査方法。
- 前記撮像ステップにおいて、波長700nm以上の近赤外線から波長20μm以下の赤外線の帯域内を用いて前記自発光画像を撮像することを特徴とする請求項1〜5のいずれか1項に記載の鋼管の表面検査方法。
- 熱間で鋼管の表面欠陥を探傷する鋼管の表面検査装置であって、
熱間で鋼管の自発光画像を撮像する撮像手段と、
前記自発光画像の周方向の輝度ムラを均一化して補正する補正手段と、
前記補正ステップで補正された自発光画像に基づいて表面欠陥を検出する検出手段と、
を備えることを特徴とする鋼管の表面検査装置。 - 請求項7に記載の鋼管の表面検査装置を備えることを特徴とする鋼管の製造システム。
- 請求項1〜6のいずれか1項に記載の鋼管の表面検査方法を利用して鋼管の表面欠陥を探傷して検出し、表面欠陥の検出位置に周期性がある場合は鋼管製造プロセス中に表面欠陥の発生原因があると特定し、表面欠陥の検出位置に周期性がない場合には製鋼段階に表面欠陥の発生原因があると特定することを特徴とする鋼管の欠陥発生部位特定方法。
- 請求項9に記載の鋼管の欠陥発生部位特定方法を利用して特定された表面欠陥の発生原因に応じて、該表面欠陥が発生しないように鋼管製造プロセスの製造条件及び/又は製鋼段階での操業条件の変更を行うことを特徴とする鋼管の製造方法。
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JP2014049163 | 2014-03-12 | ||
JP2014049163 | 2014-03-12 | ||
PCT/JP2015/056246 WO2015137200A1 (ja) | 2014-03-12 | 2015-03-03 | 鋼管の表面検査方法、表面検査装置、製造システム、欠陥発生部位特定方法、及び製造方法 |
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JP6004114B2 JP6004114B2 (ja) | 2016-10-05 |
JPWO2015137200A1 true JPWO2015137200A1 (ja) | 2017-04-06 |
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US (1) | US10209199B2 (ja) |
EP (1) | EP3118612B1 (ja) |
JP (1) | JP6004114B2 (ja) |
CN (1) | CN106104262B (ja) |
BR (1) | BR112016019638B8 (ja) |
MX (1) | MX365794B (ja) |
WO (1) | WO2015137200A1 (ja) |
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CN109496271B (zh) * | 2017-03-20 | 2021-08-10 | 深圳配天智能技术研究院有限公司 | 一种视觉检测系统及其光场校正方法 |
US11222419B1 (en) | 2017-12-06 | 2022-01-11 | Boise Cascade Company | Method and system for veneer grading and stacking using vision system analysis |
US11200663B1 (en) | 2017-12-06 | 2021-12-14 | Boise Cascade Company | Method and system for layered wood product production using local robotic panel assembly cells and vision system analysis |
CN108088845B (zh) * | 2017-12-07 | 2020-09-11 | 武汉精测电子集团股份有限公司 | 一种基于微弱信息保留的成像校正方法与装置 |
DE102018210264A1 (de) * | 2018-06-25 | 2020-01-02 | Robert Bosch Gmbh | Verfahren zur kontaktfreien Ermittlung einer Temperaturverteilung sowie Infrarot-Messsystem |
US20200173914A1 (en) | 2018-11-30 | 2020-06-04 | Boise Cascade Company | Method and system for detecting moisture levels in wood products using near infrared imaging |
US11090833B2 (en) * | 2018-11-30 | 2021-08-17 | Boise Cascade Company | Method and system for ensuring the quality of a wood product based on surface irregularities using near infrared imaging |
US11186990B1 (en) | 2020-07-23 | 2021-11-30 | Boise Cascade Company | LVL structure |
US11453211B2 (en) | 2020-11-20 | 2022-09-27 | Boise Cascade Company | Method and system for layered wood product production |
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US4983836A (en) * | 1988-06-30 | 1991-01-08 | Nkk Corporation | Method for detecting thinned out portion on inner surface or outer surface of pipe |
JPH0212045A (ja) * | 1988-06-30 | 1990-01-17 | Nkk Corp | 赤外線カメラによる欠陥部の検出方法 |
US5654977A (en) * | 1995-02-02 | 1997-08-05 | Teledyne Industries Inc. | Method and apparatus for real time defect inspection of metal at elevated temperature |
EP1326064A1 (de) * | 2002-01-08 | 2003-07-09 | Christian Florin | Verfahren und Messgerät zum Kontrollieren der Qualität einer Prüfmasse |
CN100586885C (zh) | 2003-10-04 | 2010-02-03 | 大连路明发光科技股份有限公司 | 一种长余辉发光玻璃的制造方法 |
KR20090108103A (ko) * | 2007-02-28 | 2009-10-14 | 제이에프이 스틸 가부시키가이샤 | 근적외선 카메라를 사용한 금속띠의 열간 압연 방법 및 장치 |
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MX2016011666A (es) | 2016-10-31 |
JP6004114B2 (ja) | 2016-10-05 |
BR112016019638A2 (ja) | 2017-08-15 |
WO2015137200A1 (ja) | 2015-09-17 |
EP3118612A1 (en) | 2017-01-18 |
CN106104262A (zh) | 2016-11-09 |
EP3118612B1 (en) | 2018-10-31 |
US10209199B2 (en) | 2019-02-19 |
MX365794B (es) | 2019-06-14 |
EP3118612A4 (en) | 2017-09-20 |
CN106104262B (zh) | 2019-05-03 |
BR112016019638B8 (pt) | 2022-11-16 |
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BR112016019638B1 (pt) | 2022-08-30 |
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