CA1235925A - Method for quantitatively detecting the decarburization reaction in the production process of an electrical steel sheet - Google Patents

Method for quantitatively detecting the decarburization reaction in the production process of an electrical steel sheet

Info

Publication number
CA1235925A
CA1235925A CA000470214A CA470214A CA1235925A CA 1235925 A CA1235925 A CA 1235925A CA 000470214 A CA000470214 A CA 000470214A CA 470214 A CA470214 A CA 470214A CA 1235925 A CA1235925 A CA 1235925A
Authority
CA
Canada
Prior art keywords
water vapor
steel sheet
gas
electromagnetic wave
electrical steel
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.)
Expired
Application number
CA000470214A
Other languages
English (en)
French (fr)
Inventor
Tohru Iuchi
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
Nippon Steel Corp
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
Priority claimed from JP58240678A external-priority patent/JPS60131446A/ja
Priority claimed from JP59009192A external-priority patent/JPS60166846A/ja
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Application granted granted Critical
Publication of CA1235925A publication Critical patent/CA1235925A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
    • C21D3/02—Extraction of non-metals
    • C21D3/04—Decarburising
    • 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
    • G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
    • G01N25/66—Investigating or analyzing materials by the use of thermal means by investigating moisture content by investigating dew-point

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
CA000470214A 1983-12-20 1984-12-14 Method for quantitatively detecting the decarburization reaction in the production process of an electrical steel sheet Expired CA1235925A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP58240678A JPS60131446A (ja) 1983-12-20 1983-12-20 炉内露点測定方法
JP58-240678 1983-12-20
JP59-9192 1984-01-20
JP59009192A JPS60166846A (ja) 1984-01-20 1984-01-20 電磁鋼板製造プロセスにおける脱炭反応計測方法

Publications (1)

Publication Number Publication Date
CA1235925A true CA1235925A (en) 1988-05-03

Family

ID=26343874

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000470214A Expired CA1235925A (en) 1983-12-20 1984-12-14 Method for quantitatively detecting the decarburization reaction in the production process of an electrical steel sheet

Country Status (7)

Country Link
US (1) US4647319A (enExample)
BE (1) BE901317A (enExample)
CA (1) CA1235925A (enExample)
DE (1) DE3446193A1 (enExample)
FR (1) FR2556838B1 (enExample)
GB (1) GB2153520B (enExample)
IT (1) IT1177473B (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8609619D0 (en) * 1986-04-19 1986-05-21 Procal Analytics Gas analysis
FR2676280B1 (fr) * 1991-05-10 1994-08-05 Lorraine Laminage Dispositif de mesure de la quantite d'un constituant contenu dans un echantillon de produit brule dans un four.
DE4203166C2 (de) * 1992-02-05 1995-05-04 Erno Raumfahrttechnik Gmbh Vorrichtung zur Analyse von Gasen oder Gasgemischen, insbesondere von Spurengasen, mittels Infrarotspektroskopie
US5472520A (en) * 1993-12-24 1995-12-05 Kawasaki Steel Corporation Method of controlling oxygen deposition during decarbutization annealing on steel sheets
FR2824130B1 (fr) * 2001-04-26 2003-12-12 Air Liquide Procede de controle d'un produit traite dans un four et four ainsi equipe de moyens de contole
FR2835613B1 (fr) * 2002-02-06 2004-10-01 Air Liquide Procede et dispositif de determination de la concentration de carbone dans de l'acier liquide
US20050000596A1 (en) * 2003-05-14 2005-01-06 Ak Properties Inc. Method for production of non-oriented electrical steel strip
FR2859467B1 (fr) * 2003-09-09 2007-03-02 Air Liquide Procede de controle de la fusion de verre dans un four
FR2859468B1 (fr) * 2003-09-09 2006-02-17 Air Liquide Procede de controle de la fusion de verre dans la zone d'affinage d'un four
CN103134771A (zh) * 2013-02-02 2013-06-05 浙江大学 Co浓度和能见度检测仪及其检测方法
WO2019013351A1 (ja) * 2017-07-13 2019-01-17 新日鐵住金株式会社 方向性電磁鋼板及びその製造方法
JP6915690B2 (ja) 2017-07-13 2021-08-04 日本製鉄株式会社 方向性電磁鋼板

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2886478A (en) * 1953-06-29 1959-05-12 Honeywell Regulator Co Method and control apparatus for carburizing ferrous objects
US2914434A (en) * 1956-04-11 1959-11-24 Harold L Snavely Method for controlling atmospheres while heat treating steel
FR1402856A (fr) * 1963-12-03 1965-06-18 Siderurgie Fse Inst Rech Procédé et dispositif de surveillance des réactions d'oxydation en cours d'affinage d'un bain métallique
JPS4955386A (enExample) * 1972-04-27 1974-05-29
JPS54160514A (en) * 1978-06-09 1979-12-19 Nippon Steel Corp Decarburization and annealing method for directional electromagnetic steel plate
JPS55128530A (en) * 1979-03-24 1980-10-04 Nippon Steel Corp Method and apparatus for controlling atmosphere of direct fire heating type deoxidizing furnace
US4288062A (en) * 1979-08-09 1981-09-08 Holcroft Apparatus for control and monitoring of the carbon potential of an atmosphere in a heat-processing furnace
JPS5843691A (ja) * 1981-09-09 1983-03-14 Nec Corp トランク回路
JPS5932528B2 (ja) * 1981-09-26 1984-08-09 川崎製鉄株式会社 磁気特性のすぐれた一方向性けい素鋼板の製造方法

Also Published As

Publication number Publication date
DE3446193C2 (enExample) 1987-10-22
US4647319A (en) 1987-03-03
GB2153520B (en) 1987-04-23
GB8431441D0 (en) 1985-01-23
IT1177473B (it) 1987-08-26
FR2556838A1 (fr) 1985-06-21
GB2153520A (en) 1985-08-21
FR2556838B1 (fr) 1988-10-21
BE901317A (fr) 1985-04-16
IT8424146A0 (it) 1984-12-20
DE3446193A1 (de) 1985-06-27

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