EP0124667A2 - Zwischengefäss für Stahlguss - Google Patents

Zwischengefäss für Stahlguss Download PDF

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Publication number
EP0124667A2
EP0124667A2 EP83302590A EP83302590A EP0124667A2 EP 0124667 A2 EP0124667 A2 EP 0124667A2 EP 83302590 A EP83302590 A EP 83302590A EP 83302590 A EP83302590 A EP 83302590A EP 0124667 A2 EP0124667 A2 EP 0124667A2
Authority
EP
European Patent Office
Prior art keywords
beams
tundish
fiber
steel casting
weight
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.)
Withdrawn
Application number
EP83302590A
Other languages
English (en)
French (fr)
Other versions
EP0124667A3 (de
Inventor
Masaru Takashima
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.)
Aikoh Co Ltd
Original Assignee
Aikoh 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
Priority to AU14201/83A priority Critical patent/AU1420183A/en
Application filed by Aikoh Co Ltd filed Critical Aikoh Co Ltd
Priority to EP83302590A priority patent/EP0124667A3/de
Publication of EP0124667A2 publication Critical patent/EP0124667A2/de
Publication of EP0124667A3 publication Critical patent/EP0124667A3/de
Withdrawn legal-status Critical Current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
    • B22D11/119—Refining the metal by filtering

Definitions

  • This invention relates to a tundish for steel casting, in which underflow beams and overflow beams are disposed to accelerate the float-up and separation of the non-metallic inclusions in the steel melt.
  • a tundish for steel casting plays an important role such as removing the inclusions in the steel melt, control- ing and stabilizing the flow of the molten steel when the melt is poured into a mold, and making the temperature of the molten steel uniform.
  • the object of the invention is to improve said problematical matters and to dispose within a tundish for steel casting, as overflow beams and underflow beams, beams which base on refractory materials, which consist of 0.5 - 5% by weight of fibrous materials and 1 - 10% by weight of binders and which are formed in such a way that water content is sucked and removed by a wet process.
  • the beams formed by sucking and removing water content by a wet process have a more uniform structure than the known beams made by conventional casting process or pressurizing process, and they become porous so as to be light.
  • refractory materials of the beam composition there are selected from at least one of the basic refractories such as magnesia, calcia, dolomite, chrome magnesia, and magnesia chrome.
  • the fibrous materials there are selected from at least one of the inorganic fibers such as asbestos, rock wool, slag wool, glass wool, alumina fiber, magnesia fiber, silicon carbide fiber and zirconium fiber and/or organic fibers such as pulp, cotton fiber, hemp fiber, synthetic fiber, regenerated fiber and floss-silk, and they are employed in the range 0.5 - 5% by weight.
  • the inorganic fibers such as asbestos, rock wool, slag wool, glass wool, alumina fiber, magnesia fiber, silicon carbide fiber and zirconium fiber and/or organic fibers such as pulp, cotton fiber, hemp fiber, synthetic fiber, regenerated fiber and floss-silk, and they are employed in the range 0.5 - 5% by weight.
  • aluminium, magnesium and silicon carbide are selected from at least one of aluminium, magnesium and silicon carbide and they are used in the range 1 - 20% by weight.
  • the object of adding these materials is to improve the compressive strength and corrosion resistancy by accelerating the shintering of the beams. Less than 1% by weight of them will not produce an effect while more than 20% by weight thereof will reduce the mixing ratio of other materials thereby to reversely deteriorate the compressive strength and corrosion resistancy.
  • the binders there are added at least one of the inorganic binders such as magnesium sulphate, magnesium chloride, sodium phosphate, potassium phosphate, aluminium phosphate, sodium silicate and potassium silicate, and they are used in the range 1 - 10% by weight.
  • the inorganic binders such as magnesium sulphate, magnesium chloride, sodium phosphate, potassium phosphate, aluminium phosphate, sodium silicate and potassium silicate, and they are used in the range 1 - 10% by weight.
  • the molten steel flow is guided upward to promote the floating-up of the inclusions and the weight of the beams is reduced by the portions of said holes, so that the workability is improved and since the thermal capacity is reduced the temperature of the molten steel is less lowered, said temperature being lowered by the heat absorbed by said beams.
  • the dispersion effect of the molten steel pressure received by said beams leads to an improved hardness of the beams, and the same effect may be obtained with the provision of groove in the overflow beams and/or underflow beams.
  • reference 1 designates a ladle nozzle and reference 2 a tundish.
  • Fig. 1 is an example in which overflow beams 3 are disposed in the central portion while underflow beams 4 are arranged outside the overflow beams.
  • Each of said overflow beams 3 is provided with a number of through holes 6 directed outward and upward.
  • Reference 7 shows a reinforcing material provided within each of the overflow and underflow beams.
  • reference 5 designates tundish nozzle.
  • Fig. 2 is an example in which the underflow beams are disposed in the central portion of the tundish while the overflow beams are arranged outside the underflow beams.
  • Fig. 3 shows a front view of the overflow beams or underflow beams provided with a number of through holes 6 for the melt
  • Fig. 4 shows a front view of the overflow or underflow beams provided with groove 8.
  • the beams of the present invention did not generate explosive breaking even if quickly heated at the time of pre-heating, showed superior mechanical strength and corrosion resistancy to conventional beams, and could promote the floating-up of the inclusions whereby purified slabs for thick plate could be obtained.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Ceramic Products (AREA)
EP83302590A 1983-05-03 1983-05-09 Zwischengefäss für Stahlguss Withdrawn EP0124667A3 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU14201/83A AU1420183A (en) 1983-05-03 1983-05-03 Tundish for steel casting
EP83302590A EP0124667A3 (de) 1983-05-03 1983-05-09 Zwischengefäss für Stahlguss

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU14201/83A AU1420183A (en) 1983-05-03 1983-05-03 Tundish for steel casting
EP83302590A EP0124667A3 (de) 1983-05-03 1983-05-09 Zwischengefäss für Stahlguss

Publications (2)

Publication Number Publication Date
EP0124667A2 true EP0124667A2 (de) 1984-11-14
EP0124667A3 EP0124667A3 (de) 1985-05-15

Family

ID=25615393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83302590A Withdrawn EP0124667A3 (de) 1983-05-03 1983-05-09 Zwischengefäss für Stahlguss

Country Status (2)

Country Link
EP (1) EP0124667A3 (de)
AU (1) AU1420183A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230124A1 (de) * 1985-12-13 1987-07-29 Inland Steel Company Vermeiden des Eintritts ungelöster Legierungsbestandteile in die Stranggusskokille
WO1988001651A1 (en) * 1986-08-29 1988-03-10 Usx Engineers And Consultants, Inc. Tundish for mixing alloying elements with molten metal
DE3642201C1 (de) * 1986-12-10 1988-06-16 Radex Deutschland Ag Feuerfestes keramisches Bauteil
US4828014A (en) * 1985-12-13 1989-05-09 Inland Steel Company Continuous casting tundish and assembly
US4995592A (en) * 1988-12-22 1991-02-26 Foseco International Limited Purifying molten metal
WO1996022853A1 (en) * 1995-01-26 1996-08-01 Foseco International Limited Tundish
EP0896197A1 (de) * 1997-08-04 1999-02-10 Oregon Metallurgical Corporation Gerader Herdofen zum Feinen von Titanium
US6264884B1 (en) 1999-09-03 2001-07-24 Ati Properties, Inc. Purification hearth
AT508790B1 (de) * 2009-09-23 2013-11-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zum vergiessen von metallischer schmelze zu stranggegossenen vorprodukten in einer stranggiessmaschine
US9050650B2 (en) 2013-02-05 2015-06-09 Ati Properties, Inc. Tapered hearth
CN105290346A (zh) * 2015-11-06 2016-02-03 遵义智鹏高新铝材有限公司 一种铝液流槽
US11150021B2 (en) 2011-04-07 2021-10-19 Ati Properties Llc Systems and methods for casting metallic materials

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659121A (en) * 1952-06-05 1953-11-17 Continuous Metalcast Co Inc Pouring box for continuous casting machines
FR2134009A1 (de) * 1971-04-22 1972-12-01 Kloeckner Werke Ag
FR2314789A1 (fr) * 1975-06-17 1977-01-14 Foseco Trading Ag Repartiteur garni de refractaire avec barrages pour la coulee de metaux
EP0042897A1 (de) * 1980-07-02 1982-01-06 Aikoh Co. Ltd. Verfahren zur Herstellung einer Auskleidung eines Behälters für geschmolzenes Metall und mit dem Verfahren hergestellte Auskleidung eines solchen Behälters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659121A (en) * 1952-06-05 1953-11-17 Continuous Metalcast Co Inc Pouring box for continuous casting machines
FR2134009A1 (de) * 1971-04-22 1972-12-01 Kloeckner Werke Ag
FR2314789A1 (fr) * 1975-06-17 1977-01-14 Foseco Trading Ag Repartiteur garni de refractaire avec barrages pour la coulee de metaux
EP0042897A1 (de) * 1980-07-02 1982-01-06 Aikoh Co. Ltd. Verfahren zur Herstellung einer Auskleidung eines Behälters für geschmolzenes Metall und mit dem Verfahren hergestellte Auskleidung eines solchen Behälters

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828014A (en) * 1985-12-13 1989-05-09 Inland Steel Company Continuous casting tundish and assembly
EP0230124A1 (de) * 1985-12-13 1987-07-29 Inland Steel Company Vermeiden des Eintritts ungelöster Legierungsbestandteile in die Stranggusskokille
WO1988001651A1 (en) * 1986-08-29 1988-03-10 Usx Engineers And Consultants, Inc. Tundish for mixing alloying elements with molten metal
DE3642201C1 (de) * 1986-12-10 1988-06-16 Radex Deutschland Ag Feuerfestes keramisches Bauteil
US4995592A (en) * 1988-12-22 1991-02-26 Foseco International Limited Purifying molten metal
US5882577A (en) * 1995-01-26 1999-03-16 Foseco International Limited Tundish
WO1996022853A1 (en) * 1995-01-26 1996-08-01 Foseco International Limited Tundish
US5972282A (en) * 1997-08-04 1999-10-26 Oregon Metallurgical Corporation Straight hearth furnace for titanium refining
EP0896197A1 (de) * 1997-08-04 1999-02-10 Oregon Metallurgical Corporation Gerader Herdofen zum Feinen von Titanium
US6264884B1 (en) 1999-09-03 2001-07-24 Ati Properties, Inc. Purification hearth
AT508790B1 (de) * 2009-09-23 2013-11-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zum vergiessen von metallischer schmelze zu stranggegossenen vorprodukten in einer stranggiessmaschine
US11150021B2 (en) 2011-04-07 2021-10-19 Ati Properties Llc Systems and methods for casting metallic materials
US9050650B2 (en) 2013-02-05 2015-06-09 Ati Properties, Inc. Tapered hearth
US9205489B2 (en) 2013-02-05 2015-12-08 Ati Properties, Inc. Hearth and casting system
US9221097B2 (en) 2013-02-05 2015-12-29 Ati Properties, Inc. Method for casting material
US9381571B2 (en) 2013-02-05 2016-07-05 Ati Properties, Inc. Hearth
US9539640B2 (en) 2013-02-05 2017-01-10 Ati Properties Llc Hearth and casting system
CN105290346A (zh) * 2015-11-06 2016-02-03 遵义智鹏高新铝材有限公司 一种铝液流槽

Also Published As

Publication number Publication date
AU1420183A (en) 1984-11-08
EP0124667A3 (de) 1985-05-15

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19860116

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Inventor name: TAKASHIMA, MASARU