JPS5554247A - Continuous casting method of steel - Google Patents

Continuous casting method of steel

Info

Publication number
JPS5554247A
JPS5554247A JP12611778A JP12611778A JPS5554247A JP S5554247 A JPS5554247 A JP S5554247A JP 12611778 A JP12611778 A JP 12611778A JP 12611778 A JP12611778 A JP 12611778A JP S5554247 A JPS5554247 A JP S5554247A
Authority
JP
Japan
Prior art keywords
powder
level
sent
molten steel
eddy current
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
JP12611778A
Other languages
Japanese (ja)
Inventor
Moriyuki Ishiguro
Hirohisa Nakajima
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 JP12611778A priority Critical patent/JPS5554247A/en
Publication of JPS5554247A publication Critical patent/JPS5554247A/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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/108—Feeding additives, powders, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE:To maintain the adequate thickness of powder layer and continuously cast the slab of good quality by controlling the charging amount of the powder being sprayed to molten steel surface through the use of a level gauge using gamma rays and an eddy current type range finder. CONSTITUTION:The level signal corresponding to the level of a powder layer 6 is outputted from a gamma ray source vessel 7 in which radioactive material is disposed above and below with the reference surface level of the powder layer 6 as a center, a scintillator 9 and rate meter 10 and is compared with the level signal output of an eddy current type range finder 14 by a comparator 13. The level signal output corresponding to the level of the molten steel surface is sent from the detecting part 16 installed above the molten steel surface in the mold is sent to a comparator 13 with the eddy current type range finder 14, whereby the differential signal from the signal output from the foregoing level gauge is obtained and his is sent to a computer 17 to compute the powder feed rate corresponding thereto. The calculated value is then sent to a powder supply control unit 18 which in turn operates an automatic powder feeder 19 to supply the correct amount of powder.
JP12611778A 1978-10-16 1978-10-16 Continuous casting method of steel Pending JPS5554247A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12611778A JPS5554247A (en) 1978-10-16 1978-10-16 Continuous casting method of steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12611778A JPS5554247A (en) 1978-10-16 1978-10-16 Continuous casting method of steel

Publications (1)

Publication Number Publication Date
JPS5554247A true JPS5554247A (en) 1980-04-21

Family

ID=14927051

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12611778A Pending JPS5554247A (en) 1978-10-16 1978-10-16 Continuous casting method of steel

Country Status (1)

Country Link
JP (1) JPS5554247A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553604A (en) * 1982-02-24 1985-11-19 Kawasaki Steel Corporation Method of controlling continuous casting equipment
JPS61293640A (en) * 1985-06-24 1986-12-24 Mitsubishi Heavy Ind Ltd Method for controlling feeding rate of powder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553604A (en) * 1982-02-24 1985-11-19 Kawasaki Steel Corporation Method of controlling continuous casting equipment
JPS61293640A (en) * 1985-06-24 1986-12-24 Mitsubishi Heavy Ind Ltd Method for controlling feeding rate of powder

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