EA200500241A1 - Способ и устройство для определения толщины обедненной хромом зоны поверхностной области стального элемента - Google Patents

Способ и устройство для определения толщины обедненной хромом зоны поверхностной области стального элемента

Info

Publication number
EA200500241A1
EA200500241A1 EA200500241A EA200500241A EA200500241A1 EA 200500241 A1 EA200500241 A1 EA 200500241A1 EA 200500241 A EA200500241 A EA 200500241A EA 200500241 A EA200500241 A EA 200500241A EA 200500241 A1 EA200500241 A1 EA 200500241A1
Authority
EA
Eurasian Patent Office
Prior art keywords
tube
chromium
layer
thickness
surface region
Prior art date
Application number
EA200500241A
Other languages
English (en)
Other versions
EA008014B1 (ru
Inventor
Эмиль Эдвин
Торе Арнесен
Original Assignee
Бореалис Текнолоджи Ой
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 Бореалис Текнолоджи Ой filed Critical Бореалис Текнолоджи Ой
Publication of EA200500241A1 publication Critical patent/EA200500241A1/ru
Publication of EA008014B1 publication Critical patent/EA008014B1/ru

Links

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/10—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
    • G01B7/105—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance for measuring thickness of coating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • 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
    • G01N27/80—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating mechanical hardness, e.g. by investigating saturation or remanence of ferromagnetic material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
    • G01N33/202—Constituents thereof
    • G01N33/2028—Metallic constituents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
    • G01N33/208—Coatings, e.g. platings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

В изобретении предложены способ и устройство для мониторинга приповерхностного обеднения хромом стального элемента, такого как пиролизная трубка. В агрессивных условиях пиролизной печи содержащийся в трубке 16 хром мигрирует по направлению к поверхности трубки, что приводит к образованию обеднённого хромом слоя 14. Этот слой может дать полезную информацию о состоянии и функционировании печи. Степень обеднения хромом измеряют, используя магнитный источник известной напряжённости для создания магнитного поля в поверхностной области трубки 16. Оценку толщины обеднённого хромом слоя 14 определяют по результирующей магнитной индукции, которую можно измерить при помощи элемента на основе эффекта Холла, расположенного по существу под углом 45° по отношению к продольной оси магнита.Международная заявка была опубликована вместе с отчетом о международном поиске.
EA200500241A 2002-07-22 2003-07-22 Способ и устройство для определения толщины обедненной хромом зоны поверхностной области стального элемента EA008014B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0216981.1A GB0216981D0 (en) 2002-07-22 2002-07-22 Testing steel members
PCT/EP2003/007997 WO2004023133A1 (en) 2002-07-22 2003-07-22 Method and apparatus for determining the thickness of a chromium depleted zone of a surface region of a steel member

Publications (2)

Publication Number Publication Date
EA200500241A1 true EA200500241A1 (ru) 2005-08-25
EA008014B1 EA008014B1 (ru) 2007-02-27

Family

ID=9940901

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200500241A EA008014B1 (ru) 2002-07-22 2003-07-22 Способ и устройство для определения толщины обедненной хромом зоны поверхностной области стального элемента

Country Status (8)

Country Link
US (1) US7449881B2 (ru)
EP (1) EP1523677A1 (ru)
KR (1) KR20050026504A (ru)
CN (1) CN100462720C (ru)
AU (1) AU2003250135A1 (ru)
EA (1) EA008014B1 (ru)
GB (1) GB0216981D0 (ru)
WO (1) WO2004023133A1 (ru)

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CA2634252A1 (en) * 2005-12-21 2007-07-05 Exxonmobil Research And Engineering Company Corrosion resistant material for reduced fouling, heat transfer component with improved corrosion and fouling resistance, and method for reducing fouling
US7982459B2 (en) * 2008-06-30 2011-07-19 Eaton Corporation Hydraulic cylinder rod position sensing method
RU2602731C1 (ru) 2012-12-10 2016-11-20 Арселормитталь Инвестигасьон И Десарролло Сл Способ и устройство для определения состояния и остающегося срока службы труб риформера из аустенитной стали и т.п.
CN104457547A (zh) * 2014-12-08 2015-03-25 中国特种设备检测研究院 炉管渗碳层厚度的测量方法
JP6285893B2 (ja) * 2015-07-02 2018-02-28 アイシン高丘株式会社 焼入れ加工後の鋼板の硬さ測定方法
EP3322772B1 (en) * 2015-07-13 2021-09-22 Basell Polyolefine GmbH Methods for testing non- or weakly ferromagnetic test objects
JP6514592B2 (ja) * 2015-07-16 2019-05-15 住友化学株式会社 欠陥測定方法、欠陥測定装置および検査プローブ
JP6579840B2 (ja) 2015-07-16 2019-09-25 住友化学株式会社 欠陥測定方法、欠陥測定装置、および検査プローブ
CN110146003B (zh) * 2019-06-13 2020-11-17 北京科技大学 一种利用稀土永磁材料测量钢管管壁厚度及质量缺陷方法
CN110146004B (zh) * 2019-06-13 2021-03-30 北京科技大学 一种利用稀土永磁材料检测钢管的检测装置

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US3359495A (en) * 1964-08-13 1967-12-19 Bell Inc F W Magnetic reaction testing apparatus and method of testing utilizing semiconductor means for magnetic field sensing of an eddy-current-reaction magnetic field
DE1303674C2 (de) * 1965-07-19 1973-04-12 Nix H Magnetischer schichtdickenmesser
US3689828A (en) * 1970-03-17 1972-09-05 Hitachi Ltd Manually controlled case depth measuring instrument with indicators to guide its use
DE2107076C3 (de) * 1971-02-15 1975-01-30 Elektro-Physik Hans Nix & Dr.-Ing. E. Steingroever Kg, 5000 Koeln Magnetischer Schicht-Dickenmesser
EP0028487A1 (en) * 1979-11-02 1981-05-13 Upa Technology, Inc. Hall effect thickness measuring instrument
EP0193168A3 (en) * 1985-02-25 1989-01-25 Kubota Limited Method of inspecting carburization and probe therefor
NO162537C (no) 1986-02-17 1990-01-10 Dam Patent A S Fremgangsmaate og anordning for ikke-destruktiv materialproevning.
SU1375942A1 (ru) 1986-02-24 1988-02-23 Институт Физики Ан Азсср Измерительна головка дл контрол толщины
US5105151A (en) * 1990-10-02 1992-04-14 Kubota Corporation Method and apparatus for magnetically detecting a carburized portion of an article while discriminating a non-carburized deteriorated layer of the article
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DE19511397C1 (de) * 1995-03-28 1996-09-12 Norbert Nix Gerät zur Feststellung eines Lackschadens
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NO302202B1 (no) 1996-05-30 1998-02-02 Norske Stats Oljeselskap Tykkelsesmåling II

Also Published As

Publication number Publication date
KR20050026504A (ko) 2005-03-15
CN100462720C (zh) 2009-02-18
US20050200354A1 (en) 2005-09-15
US7449881B2 (en) 2008-11-11
WO2004023133A1 (en) 2004-03-18
CN1678902A (zh) 2005-10-05
AU2003250135A1 (en) 2004-03-29
GB0216981D0 (en) 2002-08-28
EA008014B1 (ru) 2007-02-27
EP1523677A1 (en) 2005-04-20

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Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): RU