EP0102292A2 - Rohre für das Giessen von schmelzflüssigem Metall - Google Patents

Rohre für das Giessen von schmelzflüssigem Metall Download PDF

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Publication number
EP0102292A2
EP0102292A2 EP83401659A EP83401659A EP0102292A2 EP 0102292 A2 EP0102292 A2 EP 0102292A2 EP 83401659 A EP83401659 A EP 83401659A EP 83401659 A EP83401659 A EP 83401659A EP 0102292 A2 EP0102292 A2 EP 0102292A2
Authority
EP
European Patent Office
Prior art keywords
tube
pouring tube
metal
reinforcement
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.)
Granted
Application number
EP83401659A
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English (en)
French (fr)
Other versions
EP0102292A3 (en
EP0102292B1 (de
Inventor
Jean Charles Daussan
Gérard Daussan
André Daussan
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.)
Daussan SAS
Original Assignee
Daussan SAS
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.)
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4286064&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0102292(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Daussan SAS filed Critical Daussan SAS
Priority to AT83401659T priority Critical patent/ATE22826T1/de
Publication of EP0102292A2 publication Critical patent/EP0102292A2/de
Publication of EP0102292A3 publication Critical patent/EP0102292A3/fr
Application granted granted Critical
Publication of EP0102292B1 publication Critical patent/EP0102292B1/de
Expired 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
    • B22D41/24—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 characterised by a rectilinearly movable plate
    • 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

Definitions

  • the present invention relates to pouring tubes for the conduct of liquid metal in a transfer operation thereof.
  • the present invention aims to eliminate the drawbacks listed above.
  • the pouring tube composed of a thin external metallic envelope and an internal coating of insulating material sinterable at temperatures, in play, its upper end being fixed in a substantially sealed manner to the outlet orifice of a container of liquid metal, the lower end of the pouring tube immersed in the liquid metal of a second container located downstream from the first, is characterized in that it comprises, in combination with the external metal envelope, a frame reinforcement tubular embedded in the coating material, this frame extending in height over the part of the tube in contact with the liquid metal.
  • the reinforcing reinforcement consists of a metal sleeve associated with anchoring means, such as a perforated sheet or a mesh.
  • the reinforcing reinforcement may also consist of a layer of a mechanically resistant material which is distinct from the covering material, such as woven fibers - or not, or a tubular layer of mineral and / or organic grains joined together by a binder, organic - or not.
  • the inner lining of the tube can be an acidic or basic sinterable material.
  • the pouring tube thus arranged can receive various applications.
  • it can be mounted under the outlet orifice of a container for molten metal such as a ladle or a transfer container and be part in particular of a drawer system which can be moved transversely relative to the axis of the tube.
  • the tube can also constitute a removable nozzle engaged at the top of a pouring tube proper and connecting the latter, in leaktight manner, to the orifice of the casting container located upstream.
  • FIG. 1 which represents a complete continuous casting system, we see at 10 the base of the ladle, lined with its refractory lining 12, at 22 the sinterable insulating refractory and at 23 the seat brick of the fixed nozzle 21 .
  • the orifice of the nozzle 21 can be concealed by a sliding shutter, the moving plate of which is seen at 30 and the fixed plate at 35, both pierced with an orifice for the passage of the metal.
  • the shutter is in the closed position in FIG. 1.
  • the pouring tube 3 which can slide transversely to its axis at the same time as the plate 30 and a removable connection nozzle 19 mounted in leaktight manner thanks to a refractory cement joint between the plate 30 which allows its mounting and the upper part of the tube 3 where it is engaged.
  • the nozzle 19 is supported, in the example shown, on an inner hoop 17, metallic and / or refractory formed at the top of the pouring tube 3.
  • the tube 3 is located between the ladle 10 and the tundish 13, commonly called “tundish”. This in turn carries a pouring tube 4 - or nozzle - which can also belong to a drawer system and which is located between the distributor 13 and the continuous casting mold 15.
  • the invention is applied both to the pouring tubes 3 and 4 and to the connection nozzle 19.
  • the tubes 3 and 4 are thus constituted respectively by a thin outer metal casing 1 and 2 whose thickness is of the order of a millimeter.
  • the thin metal casing 1 has an annular boss 7 which comes to bear on the sliding support 8.
  • the metal envelopes 1 and 2 are lined inside a coating of sinterable insulating material 3a and 4a, acid or basic, the density of which can vary from 0.7 to 2.
  • An acid formula can contain:
  • the loss on ignition of the material being advantageously less than 6%.
  • a basic formula which may be suitable for coating 3 is as follows:
  • the loss on ignition being advantageously less than 6%.
  • the frame 5 or 6 can preferably be made using a steel sheet about 2 mm thick provided with anchoring means; it may, in particular, include perforations with a diameter of 10 mm, themselves spaced 5 mm apart. It can also be a wire mesh.
  • the reinforcement 5 or 6 can also be produced by means of a layer of fibers constituting a nonwoven and / or a tubular layer of mineral and / or organic grains joined together by an organic or mineral binder.
  • the reinforcement considered can also be made by means of a fabric of fibers, for example mineral fibers. In all cases, the reinforcement must be mechanically resistant with respect to the material of the coating of the tube within which it is incorporated.
  • the thickness of the armature is advantageously between 0.3 and 15 mm depending on the thickness of the coating 3a or 4a of the pouring tube.
  • the height of the reinforcements 5 and 6 is such that it reaches - or preferably exceeds - the upper level of the cast metal coming into contact with the outside of the tube.
  • the removable interior nozzle 19 of the pouring tube 3 is also produced in accordance with the present invention and comprises (FIG. 3) an internal reinforcement frame 31 similar to the frames 5 and 6 and which extends over the entire height of this nozzle.
  • the nozzle 19 is thus composed of a solid and / or perforated metal envelope 20 lined internally with sinterable refractory insulating material 19a similar to the coatings 3a and 4a and in which the frame 31 is embedded.
  • the distributor 13 is shown with liquid metal 14 filling it up to level NN1.
  • the continuous casting ingot mold 15 is shown with its metal ingot 16 being solidified.
  • the mode of action of the means provided for the invention is the following (see FIG. 2).
  • the tubular region 26 of the coating 3a located behind the thin outer metallic envelope 1 can only sinter when the corresponding part of this metallic envelope 1 has approximately melted.
  • the inner face 24 of the pouring tube which is substantially in contact with the metal jet, gradually sintered during the sequential casting (s) until the sintering reaches the sintered part 26.
  • This progressive sintering of the mass of the coating 3a is only possible thanks to the internal frame 5 which, while strengthening the plunging part of the tube, allows it to undergo this transformation without risk of rupture.
  • Figure 1 shows the pouring tubes 3 and 4 just before the lower part of their metal casing 1 and 2 has melted.
  • the sintering process does not generally reach a sufficient degree of progress at this time so that the plunging end of the tube, assumed to be homogeneous, can withstand the effect of internal pressure and turbulence of liquid steel, which occur at this location.
  • the reinforcing reinforcements such as 5, 6 or 31, embedded in the sinterable material, provide the necessary relay to allow the completion without breaking of the sintering process.
  • the cutting of the plunging end of the tube which normally occurred along the line lb is then eliminated, which avoids any contact of the metal with the ambient air.
  • the reinforcement provided by the invention while remaining coaxial with the pouring tube, must be adapted to the shape of the latter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Continuous Casting (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Ceramic Products (AREA)
EP83401659A 1982-08-23 1983-08-12 Rohre für das Giessen von schmelzflüssigem Metall Expired EP0102292B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83401659T ATE22826T1 (de) 1982-08-23 1983-08-12 Rohre fuer das giessen von schmelzfluessigem metall.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4992/82A CH650176A5 (fr) 1982-08-23 1982-08-23 Dispositif pour la coulee du metal fondu.
CH4992/82 1982-08-23

Publications (3)

Publication Number Publication Date
EP0102292A2 true EP0102292A2 (de) 1984-03-07
EP0102292A3 EP0102292A3 (en) 1984-07-11
EP0102292B1 EP0102292B1 (de) 1986-10-15

Family

ID=4286064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83401659A Expired EP0102292B1 (de) 1982-08-23 1983-08-12 Rohre für das Giessen von schmelzflüssigem Metall

Country Status (6)

Country Link
US (1) US4792070A (de)
EP (1) EP0102292B1 (de)
AT (1) ATE22826T1 (de)
AU (1) AU569254B2 (de)
CH (1) CH650176A5 (de)
DE (2) DE3366855D1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178053A1 (de) * 1984-09-06 1986-04-16 Foseco Trading A.G. Giessrohre
FR2617157A1 (fr) * 1987-06-26 1988-12-30 Vesuvius Crucible Co Revetement isolant pour corps refractaires, procede de revetement et article associes
EP0636441A1 (de) * 1993-07-26 1995-02-01 Magneco/Metrel, Inc. Montageblock für eine Ausgussdüse eines Zwischenbehälters
US5645120A (en) * 1992-09-02 1997-07-08 Krosaki Corporation Joint structure for casting nozzle

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951852A (en) * 1988-06-23 1990-08-28 Gilbert Rancoulle Insulative coating for refractory bodies
JPH06134557A (ja) * 1992-10-23 1994-05-17 Tokyo Yogyo Co Ltd 溶融金属収容容器用スライディングノズル
GB9222453D0 (en) * 1992-10-26 1992-12-09 Shaw Richard D Improved device for use in continuous casting
DE102004057381A1 (de) * 2004-11-26 2006-06-01 Heraeus Electro-Nite International N.V. Verfahren zur Regelung des Durchflusses sowie Bodenausguss für ein metallurgisches Gefäß
AU2007249057B2 (en) * 2004-11-26 2010-08-12 Rhi Ag Regulation method for throughflow and bottom nozzle of a metallurgical vessel
JP5116852B2 (ja) * 2010-03-30 2013-01-09 明智セラミックス株式会社 鋳造ノズル
JP6829930B2 (ja) 2016-08-09 2021-02-17 エーケー スティール プロパティ−ズ、インク． タンディッシュ漏斗

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997988A (en) * 1932-08-27 1935-04-16 Ajax Electrothermic Corp Furnace lining protection
GB583050A (en) * 1944-05-02 1946-12-05 Brassert & Co Improvements relating to bessemer converters
US2711954A (en) * 1950-02-23 1955-06-28 Illinois Clay Products Co Method of reducing sulphur in molten iron and steel
US3192582A (en) * 1962-10-03 1965-07-06 Harbison Walker Refractories Bottom pour ladle nozzle and stopper rod construction
US3229970A (en) * 1964-03-02 1966-01-18 Harbison Walker Refractories Metallurgical furnace lining
US3934640A (en) * 1969-09-16 1976-01-27 Concast Ag Submerged nozzle for continuous casting
DE2423358A1 (de) * 1974-05-14 1975-11-20 Masamitsu Miki Verfahren zur auskleidung von giesspfannen
LU72865A1 (de) * 1975-06-30 1977-03-07
FR2333599A1 (fr) * 1975-12-02 1977-07-01 Daussan Henri Dispositif a element tubulaire pour la coulee des metaux fondus
DE2646707C3 (de) * 1976-10-13 1984-01-26 Mannesmann AG, 4000 Düsseldorf Tauchausguß aus feuerfestem Werkstoff für das Stranggießen von Stahl
JPS591229B2 (ja) * 1978-04-26 1984-01-11 明知耐火煉瓦株式会社 溶鋼の連続鋳造用浸漬ノズル
FR2433995A1 (fr) * 1978-08-24 1980-03-21 Daussan & Co Procede et dispositif pour deboucher l'orifice de coulee d'un recipient metallurgique
US4257473A (en) * 1978-10-02 1981-03-24 Inland Steel Company Continuous casting shroud apparatus and method
DE2919880C2 (de) * 1979-05-17 1983-10-13 Didier-Werke Ag, 6200 Wiesbaden Feuerfestes Gießrohr zwischen Gießpfanne und Zwischenbehältern von Stranggießanlagen
FR2451789A1 (fr) * 1979-03-22 1980-10-17 Daussan & Co Revetement thermiquement isolant pour recipients metallurgiques et procede s'y rapportant
BE881486A (fr) * 1980-01-31 1980-07-31 Hainaut Sambst Perfectionnement aux dispositifs de coulee d'acier liquide
JPS5727967A (en) * 1980-07-18 1982-02-15 Nippon Steel Corp Dipping nozzle for continuous casting
JPS5738380A (en) * 1980-08-20 1982-03-03 Kamogawa Kogyo Kk Tundish lining material for continuous casting
FR2493316A1 (fr) * 1980-11-06 1982-05-07 Science Union & Cie Nouveau procede de preparation des (trialcoxy benzyl)-1 piperazines et notamment de la (trimethoxy-2', 3', 4' benzyl)-1 piperazine
US4423833A (en) * 1981-01-16 1984-01-03 Didier-Werke A.G. Refractory immersion spout
FR2506641A1 (fr) * 1981-05-27 1982-12-03 Daussan & Co Tube de coulee et son procede de fabrication
US4568007A (en) * 1984-01-23 1986-02-04 Vesuvius Crucible Company Refractory shroud for continuous casting
JP2002001566A (ja) * 2000-06-16 2002-01-08 Matsushita Electric Ind Co Ltd レーザ加工装置及びレーザ加工方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178053A1 (de) * 1984-09-06 1986-04-16 Foseco Trading A.G. Giessrohre
FR2617157A1 (fr) * 1987-06-26 1988-12-30 Vesuvius Crucible Co Revetement isolant pour corps refractaires, procede de revetement et article associes
EP0296981A3 (en) * 1987-06-26 1990-05-02 Vesuvius Crucible Company Insulating coating for refractories, coating process, and associated articles
US5645120A (en) * 1992-09-02 1997-07-08 Krosaki Corporation Joint structure for casting nozzle
EP0636441A1 (de) * 1993-07-26 1995-02-01 Magneco/Metrel, Inc. Montageblock für eine Ausgussdüse eines Zwischenbehälters

Also Published As

Publication number Publication date
US4792070A (en) 1988-12-20
DE102292T1 (de) 1984-07-19
CH650176A5 (fr) 1985-07-15
EP0102292A3 (en) 1984-07-11
EP0102292B1 (de) 1986-10-15
AU569254B2 (en) 1988-01-28
ATE22826T1 (de) 1986-11-15
AU1811183A (en) 1984-03-01
DE3366855D1 (en) 1986-11-20

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