JPS5527423A - Abnormality detecting method of tundish nozzle - Google Patents

Abnormality detecting method of tundish nozzle

Info

Publication number
JPS5527423A
JPS5527423A JP9907978A JP9907978A JPS5527423A JP S5527423 A JPS5527423 A JP S5527423A JP 9907978 A JP9907978 A JP 9907978A JP 9907978 A JP9907978 A JP 9907978A JP S5527423 A JPS5527423 A JP S5527423A
Authority
JP
Japan
Prior art keywords
nozzle
molten steel
inputted
sectional area
slab
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
JP9907978A
Other languages
Japanese (ja)
Inventor
Tetsuhiro Kondo
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9907978A priority Critical patent/JPS5527423A/en
Publication of JPS5527423A publication Critical patent/JPS5527423A/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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring

Landscapes

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

Abstract

PURPOSE:To detect the abnormality of the tundish nozzle and enable molten steel level to be smoothly controlled by calculating the sectional area of the nozzle from the molten steel change quantity in mold and slab movement quantity. CONSTITUTION:A slab movement quantity calculator 13, which receives the signal of a timing generator 11, is inputted with the pulse number from a pulse generator 10 mounted to a drive roll 9 for drawing and calculates the slab movement quantity within unit time. A molten steel quantity calculator 12 takes in the molten steel level in mold from a molten steel level detector 8 and obtains the difference from the previous take-in amount. A sectional area calculator 15 is inputted with the outputs of the calculators 13, 12 to be inputted with the width and thickness of the slab and calculates the nozzle sectional area at the present moment. A nozzle opening comparator 16 compares this value and the preset nozzle opening, judges nozzle clogging or nozzle abrasion and inputs the signal thereof to an alarm device 17. The alarm device 17 announces the results of this judgement to the operator so that suitable remedy is taken.
JP9907978A 1978-08-16 1978-08-16 Abnormality detecting method of tundish nozzle Pending JPS5527423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9907978A JPS5527423A (en) 1978-08-16 1978-08-16 Abnormality detecting method of tundish nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9907978A JPS5527423A (en) 1978-08-16 1978-08-16 Abnormality detecting method of tundish nozzle

Publications (1)

Publication Number Publication Date
JPS5527423A true JPS5527423A (en) 1980-02-27

Family

ID=14237902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9907978A Pending JPS5527423A (en) 1978-08-16 1978-08-16 Abnormality detecting method of tundish nozzle

Country Status (1)

Country Link
JP (1) JPS5527423A (en)

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