EP0313052B1 - Récipient intermédiaire pour la coulée continue horizontale - Google Patents

Récipient intermédiaire pour la coulée continue horizontale Download PDF

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Publication number
EP0313052B1
EP0313052B1 EP88117499A EP88117499A EP0313052B1 EP 0313052 B1 EP0313052 B1 EP 0313052B1 EP 88117499 A EP88117499 A EP 88117499A EP 88117499 A EP88117499 A EP 88117499A EP 0313052 B1 EP0313052 B1 EP 0313052B1
Authority
EP
European Patent Office
Prior art keywords
tundish
discharging
diameter
runner pipe
molten metal
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.)
Expired - Lifetime
Application number
EP88117499A
Other languages
German (de)
English (en)
Other versions
EP0313052A1 (fr
Inventor
Masahiro C/O Patent & License And Tsuru
Shunji C/O Patent & License And Ootomo
Tadayoshi C/O Patent & License And Shinozaki
Yoshitaka C/O Patent & License And Ishizuka
Tatsuo C/O Patent & License And Saeki
Kenichi C/O Patent & License And Kobuchi
Shinichi C/O Patent & License And Muto
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
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 filed Critical NKK Corp
Publication of EP0313052A1 publication Critical patent/EP0313052A1/fr
Application granted granted Critical
Publication of EP0313052B1 publication Critical patent/EP0313052B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B22D11/11—Treating the molten metal
    • B22D11/116—Refining the metal
    • B22D11/118—Refining the metal by circulating the metal under, over or around weirs
    • 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
    • B22D11/047—Means for joining tundish to mould
    • 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

Definitions

  • the present invention relates to a tundish for horizontal continuous casting, and more particularly, to a discharging mechanism for molten metal remaining in a tundish at the end of the horizontal continuous casting.
  • a continuous horizontal casting apparatus which is provided with a mold mounted horizontally at a lower portion of a first side wall of a tundish.
  • the mold is adjoining to the tundish through a feed nozzle in the first side wall.
  • a billet is pulled out through the mold in the horizontal direction and thus the billet is continuously cast.
  • molten metal remaining in the tundish is discharged through a discharging bore provided opposite the feed nozzle at the bottom of the tundish in a second side wall thereof by removing a plug provided in and mating with the discharging bore.
  • a tundish for a horizontal continuous casting comprising:
  • a feed nozzle 18 is fixed at a lower portion of a first side wall 12a of a tundish 10, supplying molten metal 14 to a horizontal mold 16.
  • a discharging nozzle 26 is fixed in a confronting position at a lower portion of a second side wall 12b of the tundish on the opposite side of the first side wall, and is used for discharging a part of the molten metal remaining in the tundish 10.
  • the discharging nozzle 26 has a discharging bore 28 which flares outwardly through the second side wall.
  • a plug 30 mating with the discharging bore is inserted into the discharging bore 28 from the outside of tundish 10 in a releasable manner so as to be able to be fitted to or taken out of the discharging bore.
  • a runner pipe 22 is arranged at the bottom wall 20 of tundish 10, and comprises an opening 24 through which molten metal 14 flows into the runner pipe 22 from the tundish above the runner pipe and which runner pipe connects the feed nozzle 18 with the discharging nozzle 26.
  • the runner pipe 22 is made from refractory.
  • the refractory is preferably selected as any one from the group consisting of zircon, magnesia, alumina-graphite and magnesia-graphite which have property of corrosion resistance and spalling resistance against molten metal 14.
  • the diameter D1 of a circle corresponding to the sectional area of the runner pipe is 0.5 to 2.0 of diameter D of a circle corresponding to the sectional area of the mold 16, provided, however, that D1 is preferably 80 mm or more, where a diameter of circle corresponding to the sectional area equals a diameter when the sectional shape of the runner pipe is a circle and it equals the length computed by the formula "(2/ ⁇ ) ⁇ (a length of a side)" when the sectional shape of the runner pipe is a square.
  • the opening 24 of the runner pipe 22 is preferably arranged close to the discharging nozzle 26.
  • the distance from the discharging nozzle 26 to the center of the opening 24 is preferably determined to be the diameter D1 of the runner pipe 22 or less.
  • the diameter D2 of a circle corresponding to the sectional area of the opening 24 is preferably 0.7 to 1.2 of the diameter D1 of a circle corresponding to the sectional area of the runner pipe 22, provided, however, that the minimum dimension of the diameter D2 is preferably 80 mm or more.
  • the plug 30 mating with the discharging bore 28 is made from refractory.
  • the refractory is preferably selected as any one from the group consisting of zircon, magnesia, alumina-graphite and magnesia-graphite which have property of corrosion resistance and spalling resistance against molten metal 14.
  • tundish 10 The inside of tundish 10 is preheated by fuel to 1200 to 1300°C before molten metal 14 is charged.
  • molten metal 14 is poured onto the bottom wall 20 of the tundish 10 from a ladle (not shown).
  • the molten metal introduced into the tundish flows into the runner pipe 22 through the opening 24 and the runner pipe fills with the molten metal 14.
  • a drawer (not shown) set in the mold 16 begins to work and a billet to be made from the molten metal is drawn out.
  • Molten metal 14 in the runner pipe 22 moves into the mold 16 through the feed nozzle 18. Since molten metal 14 in the tundish 10 flows close to discharging bore 28, the second side wall 12b and a portion of the bottom wall 20 neighboring with a lower portion of the second side wall are kept at a high temperature and there is no fear that molten metal 14 solidifies and adheres to walls of the tundish. Consequently, when the molten metal 14 is as high as an upper side level of runner pipe 22 at the end of the casting operation, the molten metal 14 flows out promptly through the discharging bore 28 upon the withdrawal of the plug 30 inserted in the discharging nozzle 26.

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

Claims (6)

1. Panier de coulée pour coulée continue horizontale comportant une tuyère distributrice (18) qui est fixée à une première paroi latérale (12a) d'un panier de coulée (10) et qui achemine du métal en fusion (14) jusqu'à une lingotière horizontale (16), le panier de coulée comprenant:
une tuyère de déversement (26) qui est fixée selon une position située en face, au niveau d'une partie inférieure d'une seconde paroi latérale (12b) du panier de coulée (10) opposée à la première paroi latérale (12a) et qui a un alésage de déversement (28) qui s'évase vers l'extérieur du panier de coulée (10) pour déverser une partie du métal en fusion (14) qui reste dans le panier de coulée (10);
un bouchon d'obturation (30) qui est adapté à l'alésage de déversement (28) et qui est inséré de façon amovible depuis l'extérieur du panier de coulée (10) à l'intérieur de l'alésage de déversement (28) de manière à pouvoir être adapté à l'intérieur de l'alésage de déversement (28) et à en être enlevé,
caractérisé par
un canal de coulée (22) qui a une ouverture (24) au travers de laquelle le métal en fusion (14) s'écoule à l'intérieur du canal de coulée (22) depuis le panier de coulée (10) situé au-dessus du canal de coulée (22), le canal de coulée (22) reliant la tuyère distributrice (18) à la tuyère de déversement (26).
2. Panier de coulée selon la revendication 1, caractérisé en ce que l'ouverture (24) du canal de coulée (22) est positionnée à proximité de l'alésage de déversement (28).
3. Panier de coulée selon la revendication 1, caractérisé en ce que le canal de coulée (22) a une section transversale circulaire d'un diamètre D₁, en ce que l'ouverture (24) est circulaire et a un diamètre D₂ et en ce que le diamètre D₂ est égal à 0,7 à 1,2 fois le diamètre D₁, le diamètre D₂ étant au moins égal à 80 mm.
4. Panier de coulée selon la revendication 1, caractérisé en ce que le canal de coulée (22) a une section transversale circulaire de diamètre D₁, en ce que la lingotière (16) a une section transversale circulaire d'un diamètre D et en ce que le diamètre D₁ est égal à 0,5 à 2,0 fois le diamètre D, le diamètre D₁ étant au moins égal à 80 mm.
5. Panier de coulée selon la revendication 1, caractérisé en ce que le canal de coulée (22) est réalisé à partir de n'importe lequel des matériaux sélectionné parmi le groupe constitué par le zircon, la magnésie, le graphite d'aluminium et le graphite de magnésie.
6. Panier de coulée selon la revendication 1, caractérisé en ce que le bouchon d'obturation (30) est réalisé à partir de n'importe lequel des matériaux sélectionné parmi le groupe constitué par le zircon, la magnésie, le graphite d'aluminium et le graphite de magnésie.
EP88117499A 1987-10-21 1988-10-20 Récipient intermédiaire pour la coulée continue horizontale Expired - Lifetime EP0313052B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP265875/87 1987-10-21
JP62265875A JPH01107951A (ja) 1987-10-21 1987-10-21 水平連続鋳造用タンデイッシュ

Publications (2)

Publication Number Publication Date
EP0313052A1 EP0313052A1 (fr) 1989-04-26
EP0313052B1 true EP0313052B1 (fr) 1991-06-12

Family

ID=17423310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117499A Expired - Lifetime EP0313052B1 (fr) 1987-10-21 1988-10-20 Récipient intermédiaire pour la coulée continue horizontale

Country Status (4)

Country Link
EP (1) EP0313052B1 (fr)
JP (1) JPH01107951A (fr)
KR (1) KR920000515B1 (fr)
ES (1) ES2022570B3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO302804B1 (no) * 1995-09-08 1998-04-27 Norsk Hydro As Utstyr for horisontal direktekjölt stöping av lettmetaller, spesielt magnesium og magnesiumlegeringer
CN1906293A (zh) 2005-03-08 2007-01-31 科学技术研究院 固定化酶
KR101852305B1 (ko) * 2017-08-24 2018-04-25 국방기술품질원 스포크 및 이를 이용한 비공기입 타이어

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE786630A (fr) * 1971-08-12 1973-01-24 Technicon Instr Procede et appareil pour la coulee continue de metal en moule refroidi ferme a une extremite
DE2825360C2 (de) * 1978-06-09 1983-10-27 Fried. Krupp Gmbh, 4300 Essen Induktiv beheizte Rinne zum Zuführen von Metall in eine Stranggießkokille
DE3447987C1 (de) * 1984-03-30 1986-04-17 Mannesmann AG, 4000 Düsseldorf Horizontalstranggießvorrichtung

Also Published As

Publication number Publication date
EP0313052A1 (fr) 1989-04-26
ES2022570B3 (es) 1991-12-01
KR920000515B1 (ko) 1992-01-14
JPH01107951A (ja) 1989-04-25
KR890006326A (ko) 1989-06-13
JPH0575499B2 (fr) 1993-10-20

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