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JPS5775264A - Pouring nozzle for molten metal - Google Patents

Pouring nozzle for molten metal

Info

Publication number
JPS5775264A
JPS5775264A JP15083880A JP15083880A JPS5775264A JP S5775264 A JPS5775264 A JP S5775264A JP 15083880 A JP15083880 A JP 15083880A JP 15083880 A JP15083880 A JP 15083880A JP S5775264 A JPS5775264 A JP S5775264A
Authority
JP
Japan
Prior art keywords
molten metal
nozzle
layer
electric current
path
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
JP15083880A
Other languages
Japanese (ja)
Inventor
Shigeki Komori
Haruo Miyano
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 JP15083880A priority Critical patent/JPS5775264A/en
Publication of JPS5775264A publication Critical patent/JPS5775264A/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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/60—Pouring-nozzles with heating or cooling means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE:To prevent applied electric current from flowing into molten metal when the metal passed through a nozzle, by forming an electrically insulating layer at the molten metal flow-path of a pouring nozzle and, by applying electric current between upper and lower end parts of the nozzle. CONSTITUTION:Both upper and lower end parts 1, 1' of a nozzle are constituted of electrically conductive refractory materials, and the central part in the axial direction of the nozzle is doubled with an inner layer 2 and an outer layer 3, and at the molten metal flow-path. an electrically insulated layer 4 is formed. The inner layer 2 is made of resistance-heating refractory materials, and the outer layer 3 formed at the outer periphery of the layer 2, is constituted of nonconductive refractory materials. Accordingly, when electric current is applied between the upper and lower end parts 1,1' from a heating electric source 6 through a lead wire 5, the resistance-heating body of the layer 2 is heated and the path of the molten metal is heated through the insulating layer 4. Therefore, the temp. drop of the molten metal passing through the nozzle is prevented, and the flow of applied electric current into the molten metal is prevented perfectly by the insulating layer 4.
JP15083880A 1980-10-29 1980-10-29 Pouring nozzle for molten metal Pending JPS5775264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15083880A JPS5775264A (en) 1980-10-29 1980-10-29 Pouring nozzle for molten metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15083880A JPS5775264A (en) 1980-10-29 1980-10-29 Pouring nozzle for molten metal

Publications (1)

Publication Number Publication Date
JPS5775264A true JPS5775264A (en) 1982-05-11

Family

ID=15505477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15083880A Pending JPS5775264A (en) 1980-10-29 1980-10-29 Pouring nozzle for molten metal

Country Status (1)

Country Link
JP (1) JPS5775264A (en)

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