JPS56122656A - Slag detector - Google Patents

Slag detector

Info

Publication number
JPS56122656A
JPS56122656A JP2410880A JP2410880A JPS56122656A JP S56122656 A JPS56122656 A JP S56122656A JP 2410880 A JP2410880 A JP 2410880A JP 2410880 A JP2410880 A JP 2410880A JP S56122656 A JPS56122656 A JP S56122656A
Authority
JP
Japan
Prior art keywords
coil
molten steel
slag
voltage
primary coil
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.)
Pending
Application number
JP2410880A
Other languages
Japanese (ja)
Inventor
Kazuo Sano
Seigo Ando
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 JP2410880A priority Critical patent/JPS56122656A/en
Publication of JPS56122656A publication Critical patent/JPS56122656A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
    • B22D2/001—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass for the slag appearance in a molten metal stream

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

PURPOSE:To enable the noncontact detection of the slag entering molten steel near the end of continuous casting by disposing a primary coil and a secondary coil with the molten steel flow in-between and detecting the change in the magnetic flux transmitting through the molten steel. CONSTITUTION:A primary coil 10 and a secondary coil 12 are disposed at a fixed spacing with the molten steel 3 flowing out through a nozzle 2 in-between. AC current of a constant frequency and constant amplitude in supplied to the primary coil 10. When the magnetic field from the coil 10 transmits through the molten steel 3, it intersects with the coil 12, thereby generating voltage in the coil 12. When slag enters the molten steel 3, the voltage generated in the coil 12 increases. This voltage is amplified with an amplifier 13 and is measured by using a voltmeter or the like. By this method, the amount of slag inclusion is detected in the absence of contact.
JP2410880A 1980-02-29 1980-02-29 Slag detector Pending JPS56122656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2410880A JPS56122656A (en) 1980-02-29 1980-02-29 Slag detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2410880A JPS56122656A (en) 1980-02-29 1980-02-29 Slag detector

Publications (1)

Publication Number Publication Date
JPS56122656A true JPS56122656A (en) 1981-09-26

Family

ID=12129137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2410880A Pending JPS56122656A (en) 1980-02-29 1980-02-29 Slag detector

Country Status (1)

Country Link
JP (1) JPS56122656A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693614A (en) * 1983-06-20 1987-09-15 Sumitomo Metal Industries, Ltd. Apparatus for detecting slag outflow
JPH01309767A (en) * 1988-06-06 1989-12-14 Nisshin Steel Co Ltd Method and device for cutting slag in continuous casting
JPH0741402B2 (en) * 1984-10-27 1995-05-10 アメパ アンゲヴアンテ メステヒニク ウント プロツエスアウトマテイジ−ルング ゲゼルシヤフト ミツト ベシユレンクテル ハフトウング Slag detection method and device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693614A (en) * 1983-06-20 1987-09-15 Sumitomo Metal Industries, Ltd. Apparatus for detecting slag outflow
JPH0741402B2 (en) * 1984-10-27 1995-05-10 アメパ アンゲヴアンテ メステヒニク ウント プロツエスアウトマテイジ−ルング ゲゼルシヤフト ミツト ベシユレンクテル ハフトウング Slag detection method and device
JPH01309767A (en) * 1988-06-06 1989-12-14 Nisshin Steel Co Ltd Method and device for cutting slag in continuous casting

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