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EP0563376A1 - Brique a nez ou brique de repartition pour le soufflage de gaz dans du metal en fusion - Google Patents

Brique a nez ou brique de repartition pour le soufflage de gaz dans du metal en fusion Download PDF

Info

Publication number
EP0563376A1
EP0563376A1 EP89906468A EP89906468A EP0563376A1 EP 0563376 A1 EP0563376 A1 EP 0563376A1 EP 89906468 A EP89906468 A EP 89906468A EP 89906468 A EP89906468 A EP 89906468A EP 0563376 A1 EP0563376 A1 EP 0563376A1
Authority
EP
European Patent Office
Prior art keywords
brick
nozzle
molten metal
pipes
gas
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
EP89906468A
Other languages
German (de)
English (en)
Other versions
EP0563376A4 (fr
EP0563376B1 (fr
Inventor
Kakashi Otsuka
Kenji Yamamoto
Mototsugu Osada
Tado Taniguchi
Yoshifumi Shigeta;
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.)
Shinagawa Refractories Co Ltd
Original Assignee
Shinagawa Refractories Co 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 Shinagawa Refractories Co Ltd filed Critical Shinagawa Refractories Co Ltd
Publication of EP0563376A4 publication Critical patent/EP0563376A4/fr
Publication of EP0563376A1 publication Critical patent/EP0563376A1/fr
Application granted granted Critical
Publication of EP0563376B1 publication Critical patent/EP0563376B1/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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/42—Features relating to gas injection
    • 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
    • B22D41/58—Pouring-nozzles with gas injecting means

Definitions

  • This invention relates to an inert gas injecting plate brick or nozzle brick for use in a sliding gate valve apparatus (or discharge regulator) of molten metal.
  • the molten metal received at a ladle is poured into a mold through a tundish.
  • a certain amount of molten metal is kept stored within the tundish before starting the pouring of the molten metal into the mold at the beginning of casting, and after the flowing-up of impurities a nozzle is opened to start a pouring. This procedure is called a closed start, and these days this technique has begun to be introduced.
  • a gas injecting ring in which a gas injecting ring is arranged, said ring having a plurality of small radial orifices provided toward the slide plate side from a groove formed along the outer periphery within the opening of a bottom plate brick to the center of the opening.
  • the inventors of this invention have made extensive studies and researches to solve the various problems innate in the known systems, and as the result, they have been successful in developing a novel inert gas injecting plate brick or nozzle brick for use in a sliding gate valve apparatus of molten metal, which brick is of quite different idea from the known systems.
  • the present invention is technically constituted such that a plate brick or nozzle brick for use in an apparatus of discharging molten metal is split into at least two parts horizontally, and said split surfaces are provided with a number of small diameter pipes (2) in the sealed state, and said pipes are secured to said split surface.
  • Fig. 1 shows an embodiment in which the present invention is applied to a bottom plate brick.
  • said plate brick is split into bricks 3 and 4, a number of small diameter pipes 2 each having a connecting port 1 to the gas source are involved and arranged in the jointing surfaces of said split bricks 3 and 4, and gas injecting openings 5 of said small diameter pipes 2 in group communicate with the melt passing hole.
  • Fig. 2 is similar in construction to Fig. 1, and it is an embodiment in which the gas injecting direction of the small diameter pipe 2 is brought close to the normal direction of the outer periphery of the melt passing hole.
  • Fig. 2 is similar to Fig. 1 in other constitution.
  • Fig. 3a is a plan view showing an assembling mode of the group of said small diameter pipes 2
  • Fig. 3b shows a sectional view of the group of said small diameter pipes 2 in the bound state.
  • Fig. 4 is an embodiment in which the present invention is applied to an insert nozzle brick.
  • the insert nozzle brick is split into bricks 3 and 4, a group of the small diameter pipes 2 are involved and arranged, similarly to the above, in the split surfaces, and gas injecting openings 5 communicate with the melt passing hole.
  • Fig. 5 shows an embodiment in which the invention is applied to an immersion nozle 8.
  • a through hole is provided in the nozzle body and the small diameter pipes 2 in group are arranged in said holes.
  • Fig. 6 is a sectional view where respective parts in the embodiment of Fig. 1 are separately shown thereby to exemplify their arranging relationship.
  • Fig. 7 shows an embodiment in which the insert nozzle brick is split into three parts (3, 3' and 4), and the gas injecting openings 5 are disposed in two rows of upward and horizontal directions in the melt passing hole.
  • Fig. 8 shows an embodiment in which similarly, the insert nozzle brick is split into three parts (3, 3' and 4), and the injecting openings 5 are disposed also in two rows up and down.
  • a plate brick or a nozzle brick which is used in a sliding gate valve apparatus of molten metal is split into two or more parts, several slender stainless or copper pipes are arranged in the split surfaces toward the nozzle opening, and thereafter the split plate bricks or nozzle bricks are adhered with mortar or the like.

Landscapes

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

Abstract

Brique à nez ou brique de répartition pour le soufflage de gaz dans un éjecteur de métal en fusion, caractérisées en ce qu'elles sont divisées horizontalement en au moins deux segments, un ensemble de conduites de petit diamètre étant fixées et scellées sur les surfaces de division. Chacune de ces briques empêche la fuite d'un gaz soufflé dans l'installation susmentionnée, permet d'effectuer une opération de coulée stable, et rend superflues les coûteuses étapes supplémentaires, telles que l'étape de découpage, l'étape de perçage et l'étape de jonction des briques.
EP89906468A 1989-06-01 1989-06-01 Brique a nez ou brique de repartition pour le soufflage de gaz dans du metal en fusion Expired - Lifetime EP0563376B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1989/000551 WO1990014908A1 (fr) 1989-06-01 1989-06-01 Brique a nez ou brique de repartition pour le soufflage de gaz dans du metal en fusion

Publications (3)

Publication Number Publication Date
EP0563376A4 EP0563376A4 (fr) 1993-01-09
EP0563376A1 true EP0563376A1 (fr) 1993-10-06
EP0563376B1 EP0563376B1 (fr) 1997-03-05

Family

ID=13958702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89906468A Expired - Lifetime EP0563376B1 (fr) 1989-06-01 1989-06-01 Brique a nez ou brique de repartition pour le soufflage de gaz dans du metal en fusion

Country Status (6)

Country Link
EP (1) EP0563376B1 (fr)
KR (1) KR960005885B1 (fr)
AU (1) AU652916B2 (fr)
BR (1) BR8907894A (fr)
DE (1) DE68927834T2 (fr)
WO (1) WO1990014908A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2683753A1 (fr) * 1991-11-19 1993-05-21 Stopinc Ag Plaque d'obturateur pour un obturateur a tiroir d'une cuve contenant un bain de metal en fusion.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019206018A (ja) * 2018-05-29 2019-12-05 日本製鉄株式会社 鋼の給湯方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1472532A (en) * 1973-04-27 1977-05-04 Didier Werke Ag Sliding gate nozzles for metallurgical vessels
DE2555285A1 (de) * 1975-12-09 1977-06-16 Kloeckner Werke Ag Vorrichtung zum abgiessen von stahl
JPS53123336A (en) * 1977-04-04 1978-10-27 Nippon Steel Corp Rectifier method of molten steel pouring
DE2749405C2 (de) * 1977-11-04 1982-05-27 Korf-Stahl Ag, 7570 Baden-Baden Metallstranggießverfahren, insbesondere Stahlstranggießverfahren und Vorrichtung zur Durchführung des Verfahrens
ATA511281A (de) * 1981-11-27 1987-03-15 Zimmermann & Jansen Gmbh Vorrichtung zum stranggiessen von metallen
JPS61195734A (ja) * 1985-02-26 1986-08-30 Nippon Kokan Kk <Nkk> 複合金属塊の製造用ノズル
AT383529B (de) * 1985-10-24 1987-07-10 Voest Alpine Ag Einrichtung zum vergiessen von schmelzen
US4756452A (en) * 1986-11-13 1988-07-12 Shinagawa Refractories Co., Ltd. Molten metal pouring nozzle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2683753A1 (fr) * 1991-11-19 1993-05-21 Stopinc Ag Plaque d'obturateur pour un obturateur a tiroir d'une cuve contenant un bain de metal en fusion.

Also Published As

Publication number Publication date
EP0563376A4 (fr) 1993-01-09
BR8907894A (pt) 1992-04-28
KR960005885B1 (ko) 1996-05-03
AU652916B2 (en) 1994-09-15
WO1990014908A1 (fr) 1990-12-13
EP0563376B1 (fr) 1997-03-05
DE68927834T2 (de) 1997-10-02
AU3746889A (en) 1991-01-07
DE68927834D1 (de) 1997-04-10

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