JPS56165553A - Method for controlling molten steel level - Google Patents

Method for controlling molten steel level

Info

Publication number
JPS56165553A
JPS56165553A JP6958680A JP6958680A JPS56165553A JP S56165553 A JPS56165553 A JP S56165553A JP 6958680 A JP6958680 A JP 6958680A JP 6958680 A JP6958680 A JP 6958680A JP S56165553 A JPS56165553 A JP S56165553A
Authority
JP
Japan
Prior art keywords
level
opening degree
molten steel
determined
lowered
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
JP6958680A
Other languages
Japanese (ja)
Other versions
JPS5935709B2 (en
Inventor
Hiroshi Uno
Masao Umezawa
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.)
Uchida Oil Hydraulics Mfg Co Ltd
Saginomiya Seisakusho Inc
Original Assignee
Uchida Oil Hydraulics Mfg Co Ltd
Saginomiya Seisakusho Inc
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 Uchida Oil Hydraulics Mfg Co Ltd, Saginomiya Seisakusho Inc filed Critical Uchida Oil Hydraulics Mfg Co Ltd
Priority to JP6958680A priority Critical patent/JPS5935709B2/en
Publication of JPS56165553A publication Critical patent/JPS56165553A/en
Publication of JPS5935709B2 publication Critical patent/JPS5935709B2/en
Expired 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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

PURPOSE:To maintain molten steel level constant by periodically adjusting the opening degree of a sliding nozzle in such a manner that the fluctuations of the molten steel level within molds are kept within a permissible range. CONSTITUTION:An arbitrary level h1 is set by manual operation in a manner as to attain h1>h0 with respect to a targeted molten steel level h0, and the opening degree of a nozzle is set at x1. Thence, the operation is switched to automatic operation, and the level displacements are sampled at a period T, from which a level h2 and an area S1 are determined. From the level h2 at a time T, DELTAh=h2-h1 is determined and is compared with a permissible fluctuation range DELTAH. When it is out of said range, the opening degree is lowered to x2, thereby lowering the rate of increase. A area S2 is determined at a time 2T, and a level h3 is determined. If h3- h2 is not within the permissible range, further the opening degree is lowered to x3, thereby lowering the rate of increase in the level. When the levels h4-h3 in periods 2T-3T are within the permissible range, h4-h is calculated and the opening degree is lowered to x4, thereby largely lowering the level. When the level coincides with the target molten steel level h0, the opening degree of the nozzle is set at x3. Thereby, the level enters the permissible range.
JP6958680A 1980-05-27 1980-05-27 Molten steel liquid level control method Expired JPS5935709B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6958680A JPS5935709B2 (en) 1980-05-27 1980-05-27 Molten steel liquid level control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6958680A JPS5935709B2 (en) 1980-05-27 1980-05-27 Molten steel liquid level control method

Publications (2)

Publication Number Publication Date
JPS56165553A true JPS56165553A (en) 1981-12-19
JPS5935709B2 JPS5935709B2 (en) 1984-08-30

Family

ID=13407071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6958680A Expired JPS5935709B2 (en) 1980-05-27 1980-05-27 Molten steel liquid level control method

Country Status (1)

Country Link
JP (1) JPS5935709B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625787A (en) * 1985-01-22 1986-12-02 National Steel Corporation Method and apparatus for controlling the level of liquid metal in a continuous casting mold
US4770230A (en) * 1985-03-19 1988-09-13 Metacon Aktiengesellschaft Process and apparatus for starting a continuous casting plant
US4771821A (en) * 1985-09-02 1988-09-20 Nippon Steel Corporation Method for controlling early casting stage in continuous casting process
EP0564674A1 (en) * 1992-04-06 1993-10-13 Zimmermann & Jansen GmbH Method of starting a continuous-casting installation
FR2698806A1 (en) * 1992-12-07 1994-06-10 Lorraine Laminage Automatic filling of a continuous casting mould - at start of casting before the onset of product extraction

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625787A (en) * 1985-01-22 1986-12-02 National Steel Corporation Method and apparatus for controlling the level of liquid metal in a continuous casting mold
US4770230A (en) * 1985-03-19 1988-09-13 Metacon Aktiengesellschaft Process and apparatus for starting a continuous casting plant
US4771821A (en) * 1985-09-02 1988-09-20 Nippon Steel Corporation Method for controlling early casting stage in continuous casting process
EP0564674A1 (en) * 1992-04-06 1993-10-13 Zimmermann & Jansen GmbH Method of starting a continuous-casting installation
FR2698806A1 (en) * 1992-12-07 1994-06-10 Lorraine Laminage Automatic filling of a continuous casting mould - at start of casting before the onset of product extraction

Also Published As

Publication number Publication date
JPS5935709B2 (en) 1984-08-30

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