JPS5660323A - Continuous measuring method of molten metal - Google Patents

Continuous measuring method of molten metal

Info

Publication number
JPS5660323A
JPS5660323A JP13513079A JP13513079A JPS5660323A JP S5660323 A JPS5660323 A JP S5660323A JP 13513079 A JP13513079 A JP 13513079A JP 13513079 A JP13513079 A JP 13513079A JP S5660323 A JPS5660323 A JP S5660323A
Authority
JP
Japan
Prior art keywords
molten metal
radiation
transfer tube
gas
immersing
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.)
Granted
Application number
JP13513079A
Other languages
Japanese (ja)
Other versions
JPS617245B2 (en
Inventor
Moriyuki Ishiguro
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP13513079A priority Critical patent/JPS5660323A/en
Publication of JPS5660323A publication Critical patent/JPS5660323A/en
Publication of JPS617245B2 publication Critical patent/JPS617245B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01J5/02—Constructional details
    • 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
    • G01J5/0037—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the heat emitted by liquids
    • G01J5/004—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the heat emitted by liquids by molten metals
    • 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
    • G01J5/02—Constructional details
    • G01J5/05—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path
    • G01J5/051—Means for preventing contamination of the components of the optical system; Means for preventing obstruction of the radiation path using a gas purge
    • 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
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • 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
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0818—Waveguides
    • 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
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0818—Waveguides
    • G01J5/0821—Optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Continuous Casting (AREA)
  • Radiation Pyrometers (AREA)

Abstract

PURPOSE:To measure continuously the true temperature of the molten metal dependent upon the radiation thermometer stably, by immersing a radiation transfer tube in the molten metal and by leading inactive gas of required pressure into the radiation transfer tube. CONSTITUTION:Immersing part 4 of radiation transfer tube 15 is inserted into molten metal 7 in vessel 8 such as a tundish. Inactive gas of gas pressure controlled properly by control mechanism 13 is fed to leading-in tube 14, and pressure in radiation transfer tube 15 is caused to balance with metal static pressure to form interface 19 between gas and the molten metal in the aperture part of immersing part 4. The radiation light in this interface 9 is led to radiation thermometer 1 through material 2 such as a fiber glass. By this method, a stable thermometric result of a small variance range can be obtained.
JP13513079A 1979-10-22 1979-10-22 Continuous measuring method of molten metal Granted JPS5660323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13513079A JPS5660323A (en) 1979-10-22 1979-10-22 Continuous measuring method of molten metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13513079A JPS5660323A (en) 1979-10-22 1979-10-22 Continuous measuring method of molten metal

Publications (2)

Publication Number Publication Date
JPS5660323A true JPS5660323A (en) 1981-05-25
JPS617245B2 JPS617245B2 (en) 1986-03-05

Family

ID=15144506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13513079A Granted JPS5660323A (en) 1979-10-22 1979-10-22 Continuous measuring method of molten metal

Country Status (1)

Country Link
JP (1) JPS5660323A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189527A (en) * 1982-04-30 1983-11-05 Nippon Kokan Kk <Nkk> Apparatus for measuring molten steel temperature utilising two-color thermometer
JP2021102213A (en) * 2019-12-24 2021-07-15 新東工業株式会社 Molten metal pouring device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189527A (en) * 1982-04-30 1983-11-05 Nippon Kokan Kk <Nkk> Apparatus for measuring molten steel temperature utilising two-color thermometer
JP2021102213A (en) * 2019-12-24 2021-07-15 新東工業株式会社 Molten metal pouring device

Also Published As

Publication number Publication date
JPS617245B2 (en) 1986-03-05

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