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MX2008001543A - Un aparato y metodo para detectar defectos en la superficie en una pieza a trabajar tal como una barra de metal laminado/estirado. - Google Patents

Un aparato y metodo para detectar defectos en la superficie en una pieza a trabajar tal como una barra de metal laminado/estirado.

Info

Publication number
MX2008001543A
MX2008001543A MX2008001543A MX2008001543A MX2008001543A MX 2008001543 A MX2008001543 A MX 2008001543A MX 2008001543 A MX2008001543 A MX 2008001543A MX 2008001543 A MX2008001543 A MX 2008001543A MX 2008001543 A MX2008001543 A MX 2008001543A
Authority
MX
Mexico
Prior art keywords
metal
cross
surface defects
metal bars
section
Prior art date
Application number
MX2008001543A
Other languages
English (en)
Inventor
Tzyy-Shuh Chang
Daniel Gutchess
Hsun-Hau Huang
Original Assignee
Og Technologies Inc
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 Og Technologies Inc filed Critical Og Technologies Inc
Publication of MX2008001543A publication Critical patent/MX2008001543A/es

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/95Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/952Inspecting the exterior surface of cylindrical bodies or wires
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00Features of devices classified in G01N21/00
    • G01N2201/08Optical fibres; light guides
    • G01N2201/0826Fibre array at source, distributing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00Features of devices classified in G01N21/00
    • G01N2201/08Optical fibres; light guides
    • G01N2201/084Fibres for remote transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

La presente invencion se dirige a resolver los problemas asociados con la deteccion de defectos de la superficie en barras metalicas asi como los problemas asociados con la aplicacion de sistemas de inspeccion de superficies metalicas a barras metalicas para la deteccion de defectos en superficie no destructivos. Un sistema de formacion de imagenes especialmente designado, que esta comprendido de una unidad de computo, luces en linea y camaras de escaneo en linea de alta proporcion de datos, se desarrolla para el proposito anteriormente mencionado. La aplicacion blanco es las barras metalicas que tienen una proporcion de area transversal/circunferencia igual a o menor que 4.25 cuando el area de seccion transversal es unitaria para la forma dada, cuyas secciones transversales son redondas, ovaladas o en la forma de un poligono y se fabrican mediante procesos de reduccion mecanicamente transversales. Dicho metal puede ser acero, acero inoxidable, aluminio, cobre, bronce, titanio, niquel y asi sucesivamente y/o sus aleaciones. Dichas barras metalicas pueden estar en la temperatura cuando estan siendo fabricadas. Una cinta removible incluye varios espejos. Un tubo protector aisla el movimiento de la barra metalica del ensamble de luz en linea y la camara de adquisicion de imagenes. Un mecanismo de reduccion de contaminantes aplica un vacio para remover los contaminantes portados en el aire.
MX2008001543A 2005-08-02 2006-07-31 Un aparato y metodo para detectar defectos en la superficie en una pieza a trabajar tal como una barra de metal laminado/estirado. MX2008001543A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/194,985 US7324681B2 (en) 2002-12-03 2005-08-02 Apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar
PCT/US2006/029884 WO2007016544A2 (en) 2005-08-02 2006-07-31 An apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar

Publications (1)

Publication Number Publication Date
MX2008001543A true MX2008001543A (es) 2008-04-22

Family

ID=37709306

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2008001543A MX2008001543A (es) 2005-08-02 2006-07-31 Un aparato y metodo para detectar defectos en la superficie en una pieza a trabajar tal como una barra de metal laminado/estirado.

Country Status (15)

Country Link
US (1) US7324681B2 (es)
EP (1) EP1913520B1 (es)
JP (1) JP4875704B2 (es)
KR (1) KR101263254B1 (es)
CN (1) CN101258510B (es)
AU (1) AU2006275457B2 (es)
BR (1) BRPI0614518A2 (es)
CA (1) CA2617158C (es)
MX (1) MX2008001543A (es)
PL (1) PL1913520T3 (es)
RU (1) RU2376586C2 (es)
TW (1) TWI302855B (es)
UA (1) UA94236C2 (es)
WO (1) WO2007016544A2 (es)
ZA (1) ZA200800948B (es)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7460703B2 (en) * 2002-12-03 2008-12-02 Og Technologies, Inc. Apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar
US7415335B2 (en) * 2003-11-21 2008-08-19 Harris Corporation Mobile data collection and processing system and methods
KR100891842B1 (ko) * 2007-08-28 2009-04-07 주식회사 포스코 원형 선재 광학결함 검출장치 및 방법
US20100079653A1 (en) * 2008-09-26 2010-04-01 Apple Inc. Portable computing system with a secondary image output
US8610726B2 (en) * 2008-09-26 2013-12-17 Apple Inc. Computer systems and methods with projected display
US7881603B2 (en) 2008-09-26 2011-02-01 Apple Inc. Dichroic aperture for electronic imaging device
US8143885B2 (en) * 2008-10-30 2012-03-27 Og Technologies, Inc. Surface flaw detection and verification on metal bars by Eddy current testing and imaging system
US8723675B2 (en) * 2009-04-15 2014-05-13 Identity Stronghold, Llc Smartcard connector
US8538132B2 (en) * 2010-09-24 2013-09-17 Apple Inc. Component concentricity
TWI393597B (zh) * 2010-10-29 2013-04-21 China Steel Corp Detection system of steel surface defects and its detection method
TWI420069B (zh) * 2011-01-03 2013-12-21 China Steel Corp Method of measurement of derusting device configuration
AT510849B1 (de) * 2011-06-28 2012-07-15 Medek & Schoerner Gmbh Vorrichtung zur optischen erfassung von objekten
EP2647949A1 (fr) * 2012-04-04 2013-10-09 Siemens VAI Metals Technologies GmbH Méthode et dispositif de mesure de planéité d'un produit métallique
CN103389312B (zh) * 2012-05-08 2015-10-14 珠海格力电器股份有限公司 铜管检测系统
NL2009980C2 (en) * 2012-12-13 2014-06-16 Ct Voor Tech Informatica B V A method of producing glass products from glass product material and an assembly for performing said method.
CN103163150B (zh) * 2013-03-18 2015-07-15 长飞光纤光缆股份有限公司 一种线缆表面缺陷在线检测装置及方法
RU2538340C1 (ru) * 2013-07-23 2015-01-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тамбовский государственный технический университет" ФГБОУ ВПО ТГГУ Способ совмещения изображений, полученных с помощью разнодиапазонных фотодатчиков
US9356061B2 (en) 2013-08-05 2016-05-31 Apple Inc. Image sensor with buried light shield and vertical gate
EP3080664B1 (fr) * 2013-12-10 2018-08-29 Shakti Dispositif et procede d'imagerie d'un objet
CN104777175B (zh) * 2014-01-09 2017-08-25 宝山钢铁股份有限公司 热态圆柱形长材表面质量视觉检测的成像方法和装置
CN103900424B (zh) * 2014-04-18 2015-04-15 东冠科技(上海)有限公司 一种使用线扫相机的枪弹炮弹视觉检测设备和方法
MX373614B (es) * 2014-11-25 2020-05-07 Corning Inc Métodos de inspección de material extrudido y control de retroalimentación integrados para la fabricación de cuerpos de panal.
CN104777174B (zh) * 2015-03-27 2017-11-28 中国人民解放军装甲兵工程学院 轴类零件截面突变部位表面疲劳裂纹检测系统及方法
US9955802B2 (en) 2015-04-08 2018-05-01 Fasteners For Retail, Inc. Divider with selectively securable track assembly
CN107666569B (zh) * 2016-07-29 2020-04-28 宝山钢铁股份有限公司 钢管表面检测装置的自动对焦方法
JP2018205099A (ja) * 2017-06-02 2018-12-27 コニカミノルタ株式会社 筒状物の検査装置
US10908127B2 (en) * 2017-07-14 2021-02-02 Illinois Tool Works Inc. Testing apparatus and handles for testing apparatus
CN107421963A (zh) * 2017-09-18 2017-12-01 重庆大学 一种核燃料生坯裂纹检测装置及裂纹检测方法
CN107917916B (zh) * 2017-11-16 2020-09-01 哈尔滨工业大学 一种利用双自由度导轨检测椭球形玻壳的检测方法
CN108016020B (zh) * 2017-12-12 2023-10-24 河北天昱恒科技有限公司 塑料管自动检测装置
RU2687511C1 (ru) * 2018-04-09 2019-05-14 Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" Устройство для измерения положения лазерного луча
IT201800010374A1 (it) * 2018-11-15 2020-05-15 Xepics Sa Metodo e sistema automatico di misura per la misurazione di parametri fisici e dimensionali di articoli combinati.
JP6973623B2 (ja) * 2018-12-25 2021-12-01 Jfeスチール株式会社 学習済みモデルの生成方法、学習済みモデル、表面欠陥検出方法、鋼材の製造方法、合否判定方法、等級判定方法、表面欠陥判定プログラム、合否判定プログラム、判定システム、及び鋼材の製造設備
CN110412055B (zh) * 2019-05-06 2021-10-01 天津大学 一种基于多光源暗场照明的透镜白雾缺陷检测方法
EP3968012A1 (en) * 2020-09-11 2022-03-16 Schott Ag Apparatus for the inspection of a circular elongated element
CN113310994A (zh) * 2021-06-28 2021-08-27 同济大学 一种多目隧道式线性构件扫描装置
KR102694091B1 (ko) * 2021-08-04 2024-08-12 주식회사 온옵틱스 봉체의 표면크랙 검사장치
KR102372816B1 (ko) * 2021-12-07 2022-03-08 김상록 파이프 가공홈 성형장치
CN114166131B (zh) * 2021-12-08 2025-01-28 郑州天宏工程检测有限公司 一种钢筋断后伸长率检测系统及其使用方法
US20230421909A1 (en) * 2022-06-27 2023-12-28 Mitutoyo Corporation Lighting configuration for metrology system with images acquired at different focus positions
KR102514703B1 (ko) * 2022-07-29 2023-03-29 (주)한맥기술 복수 개의 카메라를 이용하여 구조물의 손상 영역을 촬영하는 무인 비행 장치 및 이를 이용한 구조물 손상 검사 장치
CN115452838B (zh) * 2022-09-21 2025-10-14 广东奥普特科技股份有限公司 一种基于光度立体的金属表面缺陷检测装置及检测方法
CN116183628A (zh) * 2022-09-27 2023-05-30 上海交通大学 电缆径向曲面检测的多重光源装置、成像方法及系统
CN115791790B (zh) * 2022-10-31 2024-08-23 重庆长安汽车股份有限公司 一种汽车钣金件表面凹凸缺陷检测工装
FI20235604A1 (fi) * 2023-05-30 2024-12-01 Konecranes Global Oy Synteettisen köyden kunnonvalvontalaite
TWI845346B (zh) * 2023-06-15 2024-06-11 中國鋼鐵股份有限公司 長條狀鋼產線之視覺檢測裝置
CN116625621B (zh) * 2023-07-25 2023-09-26 合肥沛顿存储科技有限公司 一种裸芯片振动检测设备
CN117405685A (zh) * 2023-12-15 2024-01-16 深圳市什方智造科技有限公司 发光装置、发光方法及电池检测设备
CN119869970B (zh) * 2025-01-20 2025-12-30 武汉瑞德仪科技有限公司 精密金属件加工用视觉检测装备
CN120833513A (zh) * 2025-07-04 2025-10-24 徐州互腾机械科技有限公司 一种轴类零件加工用表面检测方法

Family Cites Families (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3933532A (en) * 1972-09-20 1976-01-20 Eschweiler Bergwerks-Verein Aktiengesellschaft Method for exposing surface defects on hot steel blanks
US4024470A (en) 1974-05-20 1977-05-17 Republic Steel Corporation Eddy current detector for hot test pieces having coolant fluid and purge features
JPS6026176B2 (ja) 1976-07-09 1985-06-22 日本鋼管株式会社 赤熱金属材料の表面疵検出装置
US4118732A (en) * 1977-02-15 1978-10-03 Nippon Steel Corporation Apparatus for detecting a surface flaw of a material at high temperature
US4141071A (en) 1977-03-17 1979-02-20 Bethlehem Steel Corporation Automatic diametric dimension control for mill for rolling round bars
US4121294A (en) * 1977-03-17 1978-10-17 Bethlehem Steel Corporation Electro-optical gaging system
US4139890A (en) * 1977-03-17 1979-02-13 Bethlehem Steel Corporation Bar gauge plotting and display system
US4122815A (en) * 1977-03-31 1978-10-31 Gerry Martin E Non-DC ignition system with variable ignition timing
US4203673A (en) * 1978-01-26 1980-05-20 E. I. Du Pont De Nemours And Company Method and apparatus for optically inspecting cylindrical articles
GB2019009B (en) 1978-03-23 1982-11-17 Futec Inc Method of imaging the surface of a continuous cast hot metal strip for detection of scarfs appearing thereon and apparatus for the same
US4338822A (en) 1978-06-20 1982-07-13 Sumitomo Metal Industries, Ltd. Method and apparatus for non-contact ultrasonic flaw detection
US4319270A (en) 1979-01-12 1982-03-09 Kobe Steel, Ltd. Surface inspection system for hot radiant material
US4223346A (en) 1979-04-05 1980-09-16 Armco Inc. Automatic defect detecting inspection apparatus
US4358202A (en) * 1980-07-28 1982-11-09 Essex Group, Inc. Apparatus and method for monitoring the surface character of circular objects
US4377238A (en) * 1980-08-27 1983-03-22 The United States Of America As Represented By The United States Department Of Energy Flaw detection and evaluation
US4461995A (en) 1981-10-29 1984-07-24 Republic Steel Corporation Cooling method and apparatus for eddy current flaw detection
US4495587A (en) * 1981-12-08 1985-01-22 Bethlehem Steel Corporation Automatic nondestructive roll defect inspection system
AT382458B (de) 1982-02-11 1987-02-25 Voest Alpine Ag Verfahren zur oberflaechenpruefung von ueber dem curie-punkt heissem stahlgut sowie einrichtung zur durchfuehrung des verfahrens
US4519041A (en) 1982-05-03 1985-05-21 Honeywell Inc. Real time automated inspection
US4493859A (en) 1982-09-13 1985-01-15 Cyclops Corporation Method for marking hot pipe
US4616139A (en) * 1983-05-31 1986-10-07 Hauni-Werke Korber & Co. Kg. Apparatus for optical scanning of the exterior of a moving cigarette rod or the like
US4561104A (en) 1984-01-16 1985-12-24 Honeywell Inc. Automated inspection of hot steel slabs
FR2559581B1 (fr) 1984-02-10 1986-07-11 Siderurgie Fse Inst Rech Procede et installation de detection de defauts de surface sur une bande en cours de defilement
CA1229392A (en) 1984-02-28 1987-11-17 Hirosato Yamane Method and apparatus for detection of surface defects of hot metal body
US4593710A (en) * 1984-07-16 1986-06-10 Fabric And Structure Technology, Inc. Framed tension structure
US4635111A (en) * 1985-04-05 1987-01-06 The United States Of America As Represented By The United States Department Of Energy Optical fiber inspection system
US5068799A (en) 1985-04-24 1991-11-26 Jarrett Jr Harold M System and method for detecting flaws in continuous web materials
US4926928A (en) 1985-07-29 1990-05-22 Essex Group, Inc. Protective device of restraining rod produced in continuous casting and rolling process
SE456864B (sv) 1986-08-27 1988-11-07 Toernbloms Kvalitetskontroll Anordning foer att vid virvelstroemsprovning av omagnetiska provobjekt detektera och undertrycka inverkan av stoerande magnetiska omraaden
US4837510A (en) 1987-01-30 1989-06-06 Tornbloms Kvalitetskontroll Ab Device for suppression and/or separation of signals due to magnetic oxide scales in hot cast billets
US4953710A (en) 1988-12-21 1990-09-04 China Steel Corporation Automated apparatus for inspecting columnar bodies by eddy current method
JPH041614A (ja) * 1990-04-18 1992-01-07 Mitsubishi Electric Corp 光増幅装置
US5103722A (en) 1990-09-24 1992-04-14 Artisan Equipment, Inc. Method and apparatus for marking metal products at incipient formation temperatures
US5146311A (en) 1991-06-21 1992-09-08 Aluminum Company Of America Method of indentifying and quantifying oxides on rolled metal strip
WO1993003350A1 (de) * 1991-08-01 1993-02-18 Birkle Sensor Gmbh + Co. Optische bauelemente zum optischen abtasten der oberfläche eines objektes, dessen oberfläche licht zu reflektieren, zu streuen oder zu brechen imstande ist
NO914574L (no) 1991-11-22 1993-05-24 Elkem Technology Fremgangsmaate for detektering av pin-hull i strengestoeptemetallemne
JP3446223B2 (ja) 1992-07-07 2003-09-16 富士ゼロックス株式会社 シート分配収容装置
JPH06241740A (ja) 1993-02-17 1994-09-02 Nippon Steel Corp 電縫管溶接ビード切削不良・欠陥検出方法
US5442285A (en) 1994-02-28 1995-08-15 Westinghouse Electric Corporation NDE eddy current sensor for very high scan rate applications in an operating combustion turbine
US5654977A (en) * 1995-02-02 1997-08-05 Teledyne Industries Inc. Method and apparatus for real time defect inspection of metal at elevated temperature
JPH08233751A (ja) * 1995-02-23 1996-09-13 Asahi Eng Co Ltd 線状体の表面検査装置
US6002251A (en) 1995-12-15 1999-12-14 Sun; Yu-Shi Electromagnetic-field-focusing remote-field eddy-current probe system and method for inspecting anomalies in conducting plates
US5866820A (en) 1996-09-20 1999-02-02 Camplin; Kenneth R. Coil volumetric and surface defect detection system
US5963918A (en) * 1996-10-29 1999-10-05 Morgan Construction Company System and method of optimizing rolling mill roll inventory
US6092059A (en) 1996-12-27 2000-07-18 Cognex Corporation Automatic classifier for real time inspection and classification
EP0880023A1 (de) 1997-05-23 1998-11-25 Siemag Transplan Gmbh Verfahren und Vorrichtung zur automatischen Detektion von Oberflächenfehlern beim kontinuierlichen mechanischem Abtragen von Material von Stranggiessprodukten
AUPP298698A0 (en) 1998-04-17 1998-05-07 Crc For Intelligent Manufacturing Systems & Technologies Ltd Fault detection apparatus
KR20000042522A (ko) 1998-12-26 2000-07-15 이구택 강판의 표면결함 검출장치
JP3592990B2 (ja) 2000-03-15 2004-11-24 石川県 棒状切削工具の欠陥検査装置
JP2002139446A (ja) 2000-10-31 2002-05-17 Nkk Corp 表面欠陥検出方法及び装置
US6950546B2 (en) 2002-12-03 2005-09-27 Og Technologies, Inc. Apparatus and method for detecting surface defects on a workpiece such as a rolled/drawn metal bar
CN100365414C (zh) * 2003-08-18 2008-01-30 林俊明 高速金属管、棒、线材在线探伤方法及其装置

Also Published As

Publication number Publication date
KR101263254B1 (ko) 2013-05-10
AU2006275457A1 (en) 2007-02-08
PL1913520T3 (pl) 2017-09-29
EP1913520A4 (en) 2009-11-25
KR20080040756A (ko) 2008-05-08
RU2008104563A (ru) 2009-09-10
JP2009507211A (ja) 2009-02-19
UA94236C2 (ru) 2011-04-26
TW200732057A (en) 2007-09-01
AU2006275457B2 (en) 2011-08-04
EP1913520A2 (en) 2008-04-23
CA2617158A1 (en) 2007-02-08
RU2376586C2 (ru) 2009-12-20
CA2617158C (en) 2011-12-20
BRPI0614518A2 (pt) 2012-11-27
WO2007016544A2 (en) 2007-02-08
EP1913520B1 (en) 2017-05-24
ZA200800948B (en) 2009-02-25
JP4875704B2 (ja) 2012-02-15
WO2007016544A3 (en) 2007-09-27
US20060002605A1 (en) 2006-01-05
CN101258510B (zh) 2012-05-09
CN101258510A (zh) 2008-09-03
TWI302855B (en) 2008-11-11
US7324681B2 (en) 2008-01-29

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