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JPS577366A - Immersion nozzle for continuous casting - Google Patents

Immersion nozzle for continuous casting

Info

Publication number
JPS577366A
JPS577366A JP8025380A JP8025380A JPS577366A JP S577366 A JPS577366 A JP S577366A JP 8025380 A JP8025380 A JP 8025380A JP 8025380 A JP8025380 A JP 8025380A JP S577366 A JPS577366 A JP S577366A
Authority
JP
Japan
Prior art keywords
molten
immersion nozzle
zirconia
binder
continuous casting
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
JP8025380A
Other languages
Japanese (ja)
Inventor
Fukuichi Kitani
Tatsuto Takahashi
Tadaaki Takahashi
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 JP8025380A priority Critical patent/JPS577366A/en
Publication of JPS577366A publication Critical patent/JPS577366A/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
    • B22D41/505—Rings, inserts or other means preventing external nozzle erosion by the slag

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

PURPOSE:To provide an immersion nozzle which prevents local abrasion owing to the percolation of molten powder by disposing the zirconia-graphite base mixture compounded with a silica source and a binder in the part to be in contact with the molten molding power of a nozzle body, then molding and calcining the same. CONSTITUTION:65-95wt% Zirconia, <=35% graphite, 0.2-5.0% silica of <=50mu grain size, silicic acid base raw material, one or more kinds of SiC, ZrO2, SiO2, Si3N4, ZrC, ZrN and <=13% binder (resin and pitch or the like) that provides carbon bonds after reduction calcination are kneaded. This compound is disposed near the part in contact with a molten powder layer 3 in a nozzle body 5, and is molded by an isostatic press, after which it is calcined in a reducing atmosphere, whereby a refractory layer 6 is formed. Thereby, the immersion nozzle for continuous casting of less generator of local abrasion near the interface of the molten steel 2 and the molten powder 3, and a long service life is obtained.
JP8025380A 1980-06-16 1980-06-16 Immersion nozzle for continuous casting Pending JPS577366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8025380A JPS577366A (en) 1980-06-16 1980-06-16 Immersion nozzle for continuous casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8025380A JPS577366A (en) 1980-06-16 1980-06-16 Immersion nozzle for continuous casting

Publications (1)

Publication Number Publication Date
JPS577366A true JPS577366A (en) 1982-01-14

Family

ID=13713143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8025380A Pending JPS577366A (en) 1980-06-16 1980-06-16 Immersion nozzle for continuous casting

Country Status (1)

Country Link
JP (1) JPS577366A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100774918B1 (en) 2006-12-14 2007-11-09 조선내화 주식회사 Molten Steel Castings
US7757747B2 (en) * 2005-04-27 2010-07-20 Nucor Corporation Submerged entry nozzle
JP2019503973A (en) * 2015-12-01 2019-02-14 リフラクトリー・インテレクチュアル・プロパティー・ゲー・エム・ベー・ハー・ウント・コ・カーゲー Particles for producing refractories, use of the particles, refractories, processes for producing refractories, and products produced by the processes
CN110090946A (en) * 2019-05-23 2019-08-06 江苏沙钢集团有限公司 A core nozzle for thin strip continuous casting and its manufacturing method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54141332A (en) * 1978-04-26 1979-11-02 Akechi Taikarenga Kk Nozzle for use in continuous casting
JPS5554244A (en) * 1978-10-16 1980-04-21 Nippon Rutsubo Kk Two layer type immersion nozzle and production thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54141332A (en) * 1978-04-26 1979-11-02 Akechi Taikarenga Kk Nozzle for use in continuous casting
JPS5554244A (en) * 1978-10-16 1980-04-21 Nippon Rutsubo Kk Two layer type immersion nozzle and production thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7757747B2 (en) * 2005-04-27 2010-07-20 Nucor Corporation Submerged entry nozzle
KR100774918B1 (en) 2006-12-14 2007-11-09 조선내화 주식회사 Molten Steel Castings
JP2019503973A (en) * 2015-12-01 2019-02-14 リフラクトリー・インテレクチュアル・プロパティー・ゲー・エム・ベー・ハー・ウント・コ・カーゲー Particles for producing refractories, use of the particles, refractories, processes for producing refractories, and products produced by the processes
CN110090946A (en) * 2019-05-23 2019-08-06 江苏沙钢集团有限公司 A core nozzle for thin strip continuous casting and its manufacturing method
CN110090946B (en) * 2019-05-23 2021-11-16 江苏沙钢集团有限公司 Core nozzle for thin strip continuous casting and manufacturing method thereof

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