EP1526940B1 - Feuerfestes keramisches bauteil - Google Patents

Feuerfestes keramisches bauteil Download PDF

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Publication number
EP1526940B1
EP1526940B1 EP03784140A EP03784140A EP1526940B1 EP 1526940 B1 EP1526940 B1 EP 1526940B1 EP 03784140 A EP03784140 A EP 03784140A EP 03784140 A EP03784140 A EP 03784140A EP 1526940 B1 EP1526940 B1 EP 1526940B1
Authority
EP
European Patent Office
Prior art keywords
walls
component according
component
inner surfaces
base
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
EP03784140A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1526940A1 (de
Inventor
Alexander Retschnig
Bernhard Longin
Dieter Pirkner
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.)
Refractory Intellectual Property GmbH and Co KG
Original Assignee
Refractory Intellectual Property GmbH and Co KG
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 Refractory Intellectual Property GmbH and Co KG filed Critical Refractory Intellectual Property GmbH and Co KG
Publication of EP1526940A1 publication Critical patent/EP1526940A1/de
Application granted granted Critical
Publication of EP1526940B1 publication Critical patent/EP1526940B1/de
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
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
    • 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
    • B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors
    • 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
    • B22D41/003—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with impact pads

Definitions

  • the invention relates to a refractory ceramic component, which, for example, in Shape of a baffle or a melt trough can be designed.
  • a molten metal for example, after a pan treatment in a Tundish is poured due to the partly high Flow rate (for example: 3 m / s) to considerable mechanical Strains of fireproof tundish lining area on which the Melt impinges. In addition, it comes to turbulence at least in the environment of Impingement.
  • the kinetic energy of the melt stream is exemplary 2 to 10 Ws / kg.
  • the baffle plate may consist of highly wear-resistant refractory materials.
  • baffle pots are known (WO 00/06324, WO 97/37799, EP 0 729 393B1, EP 0 790 873 B1).
  • baffle pots are designed so that they at the top, so where the Melt is supplied, but also where the melt the baffle again leaves, have a cross-sectional taper. This creates a "undercut" profile.
  • the invention is based on the consideration that To make the component so that on the one hand a directional deflection of the supplied Molten metal, on the other hand, a reduction in the kinetic energy of Melt.
  • the invention provides a special Orientation / inclination of the corresponding inner surfaces of the boundary walls.
  • the type and extent of the energy reduction depend on the angle of inclination of the inner surfaces the walls off.
  • topfförmije components namely regardless of the (horizontal) cross-sectional geometry, so for example for Baffles with more or less circular, oval or rectangular Internal cross-section.
  • the distance of the inner surfaces of the walls in the region of the free ends the walls and the bottom ends of the walls are larger than at least an area in between.
  • Said angle of inclination amounts in one embodiment between 10 and 80 degrees, according to another embodiment between 30 and 60 degrees.
  • the free end of the wall adjacent sections have a greater angle of inclination than that of the Bottom of the component adjacent section.
  • the inner cross section should of the component to the free, open end to increase.
  • the individual slope sections can be either directly (continuous) merge into each other (as stated, even with different Angles). But it is also possible, the inner surfaces of said walls - im Section considered - form with a sawtooth profile, so that "undercut Zones be formed on the wall side, as a flow brake on the Molten metal act. The mentioned constriction can of such "Tooth geometry" are formed.
  • the inner surfaces of the walls can be rounded, facing each other Profile sections or groove-like depressions.
  • the component can also be designed pot-shaped.
  • a curved design of the wall surfaces can be this end connect, so that a closed component with, for example, oval or round Inner cross section (and / or outer cross section) is formed.
  • a closed component with, for example, oval or round Inner cross section (and / or outer cross section) is formed.
  • at least two more walls are provided, the two already described walls under formation of a (rectangular or polygonal) Connect pot shape.
  • Profiles of the circumferential inner wall can be helical, thread-like or helical.
  • the ratio height: width (of the wall bounded interior) can in vary widely. It will usually be> 2: 1 to 1: 4, can be without but also go up to the ratio of 1:15. The same applies to the relationship Height: maximum diameter for the described pot-like geometries.
  • the opening between the walls at the outlet end of the melt is larger
  • the opening between the walls at the outlet end of the melt is larger
  • Any undercuts can be formed for example by burnable filler in the production become.
  • connecting surfaces can also be horizontal (parallel to the ground), vertical (perpendicular to the ground), with an inclination angle> 90 ° to the vertical or with curved profile can be arranged.
  • FIG. 1 shows a possible basic geometry of a component according to the invention with a bottom 10.
  • Two walls 12, 14 extend with wall portions 12u, 14u of opposite portions 101, 10r of the bottom 10, in the same direction (namely, upward) , but with opposite inclination, namely initially directed against each other (up to a minimum distance d min ) and then diverging (wall sections 12o, 14o)
  • the maximum distance of the lower wall portions 12u, 14u of the walls 12, 14 is indicated by d
  • the distance of the upper portions of the walls 12, 14 in the region of their free ends 12r, 14r is indicated by D.
  • the walls 12, 14 are mirror images of an imaginary plane of symmetry EE.
  • the angle of inclination a of the lower portions of the walls 12, 14 is about 70 ° to the top of the bottom 10.
  • the upper portions of the walls 12, 14 extend at an angle b of about 20 ° to a plane parallel to the plane EE.
  • the component according to FIG. 1 is designed as a channel.
  • a first inner wall section 12.1 extends at an angle a to the plane EE of approximately 45 degrees. This section is followed by a parallel to the bottom 10 extending portion 12.2, which extends inwards (in the direction of the opposite wall 14). This section 12.2 is followed by a further section 12.3 which extends at an angle ⁇ of approximately 40 degrees to the plane EE up to the upper edge 12r of the wall 12. Between the sections 12.2 and 12.3, the wall distance d min is therefore the smallest.
  • Figure 3 is similar to that of Figure 2, wherein it is at the component shown here, however, designed around a rotationally symmetrical, pot-like component, so a kind of baffle.
  • the rotational symmetry results with respect to an imaginary center longitudinal axis M-M.
  • Wall surface can be referred to as a wall surface 14.
  • wall surface acts course around the same wall surface 12 shown in the left part of the figure, because this wall rotates due to the described pot geometry.
  • the bottom 10 has a dome-like surface 10o, which also vice versa could be arched.
  • FIG. 4 shows a further embodiment of an impact pot, wherein a wall section 12.6 adjoins a lower, inclined wall section 12.1, which runs perpendicular to the floor 10 and is followed by a bead-like inner wall surface 12.7 which projects towards the free outer edge 12r of the impact pot extended outside, so that the baffle pot at the upper free end has a much larger inner diameter Q than in the area of the impact surface 24 of the bottom 10 (diameter q).
  • the baffle pot at the upper free end has a much larger inner diameter Q than in the area of the impact surface 24 of the bottom 10 (diameter q).
  • the body can be produced in one piece from a casting compound (for example based on Al 2 O 3 ).
  • Figure 4 shows - dashed - also a possible modification.
  • reverse Curvature convex curvature
  • One or more inner floor and wall surfaces of the described impact body can be rectilinear or curved, convex as concave curved, also merging with each other, with same or different angles of inclination / radii of curvature run. As a result, the flow behavior of the melt on the specific application.
  • the curved wall sections 12.1, 12.6 and 12.7 each have different angles, under which they to the plane E-E run.
  • the point P is on the opening mouth O directed surface section 12.7, the tangent T applied.
  • the surface section 12.7 At the point P is the surface section 12.7 at the angle ⁇ of about 80 degrees to Level E-E.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Ink Jet (AREA)
  • Thermistors And Varistors (AREA)
  • Ceramic Products (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Inorganic Insulating Materials (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Building Environments (AREA)
EP03784140A 2002-08-05 2003-08-01 Feuerfestes keramisches bauteil Expired - Lifetime EP1526940B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10235867A DE10235867B3 (de) 2002-08-05 2002-08-05 Feuerfestes keramisches Bauteil
DE10235867 2002-08-05
PCT/EP2003/008535 WO2004014585A1 (de) 2002-08-05 2003-08-01 Feuerfestes keramisches bauteil

Publications (2)

Publication Number Publication Date
EP1526940A1 EP1526940A1 (de) 2005-05-04
EP1526940B1 true EP1526940B1 (de) 2005-12-14

Family

ID=31501726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03784140A Expired - Lifetime EP1526940B1 (de) 2002-08-05 2003-08-01 Feuerfestes keramisches bauteil

Country Status (15)

Country Link
US (1) US7128247B2 (zh)
EP (1) EP1526940B1 (zh)
CN (1) CN1298464C (zh)
AT (1) ATE312678T1 (zh)
AU (1) AU2003258559B2 (zh)
BR (1) BR0305743B1 (zh)
CA (1) CA2466646C (zh)
DE (2) DE10235867B3 (zh)
EG (1) EG23513A (zh)
ES (1) ES2253708T3 (zh)
MX (1) MXPA04005836A (zh)
PL (1) PL199731B1 (zh)
RU (1) RU2284246C2 (zh)
TW (1) TWI238748B (zh)
WO (1) WO2004014585A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007035452A1 (de) 2007-07-26 2009-01-29 Pa-Ha-Ge Feuerfeste Erzeugnisse Gmbh & Co. Kg Pralltopf
EP2769785A1 (en) * 2013-02-25 2014-08-27 Refractory Intellectual Property GmbH & Co. KG Refractory impact pad

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8066935B2 (en) 2007-12-14 2011-11-29 The Harrison Steel Castings Company Turbulence inhibiting impact well for submerged shroud or sprue poured castings
SI2418032T2 (sl) 2010-07-19 2016-05-31 Refractory Intellectual Property Gmbh & Co. Kg Ognjevzdržen keramičen udarni lonec
RU2507028C1 (ru) * 2012-12-06 2014-02-20 Общество С Ограниченной Ответственностью "Группа "Магнезит" Металлоприемник
PL2865464T3 (pl) * 2013-10-22 2016-08-31 Refractory Intellectual Property Gmbh & Co Kg Ognioodporna ceramiczna wkładka podstrumieniowa
US9308581B2 (en) * 2014-03-28 2016-04-12 ArceloMittal Investigacion y Desarrollo, S.L. Impact pad, tundish and apparatus including the impact pad, and method of using same
JP6317478B2 (ja) 2015-08-17 2018-04-25 日新製鋼株式会社 環状堰
JP6452633B2 (ja) * 2016-01-18 2019-01-16 東京窯業株式会社 焼成プレキャストブロック

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6324A (en) * 1849-04-17 Piston-valve cut-off
US729393A (en) * 1902-04-19 1903-05-26 William Newman Knotter for grain-binders.
US790873A (en) * 1905-01-03 1905-05-23 Lodge & Shipley Machine Tool Company Head-stock for lathes.
US5188796A (en) * 1990-05-29 1993-02-23 Magneco/Metrel, Inc. Tundish impact pad
US5358551A (en) * 1993-11-16 1994-10-25 Ccpi, Inc. Turbulence inhibiting tundish and impact pad and method of using
CN2192420Y (zh) * 1994-06-07 1995-03-22 河南省安阳钢铁公司 组合式大包注流保护及钢液导向装置
ES2104525T3 (es) * 1994-11-09 1998-09-16 Foseco Int Placa de impacto para artesa refractaria.
GB9517633D0 (en) * 1995-08-30 1995-11-01 Foseco Int Tundish impact pad
DE19542367C2 (de) * 1995-11-14 1999-06-02 Feuerfest Technik M B H Ges Metallurgisches Gefäß und Verfahren zur Herstellung oder Reparatur desselben sowie Platte hierfür
GB9607556D0 (en) * 1996-04-11 1996-06-12 Foseco Int Tundish impact pad
US6102260A (en) * 1996-11-21 2000-08-15 Psc Technologies, Inc. Impact pad
GB9816458D0 (en) * 1998-07-29 1998-09-23 Foseco Int Tundish impact pad
GB9903937D0 (en) * 1999-02-22 1999-04-14 Foseco Int Tundish impact pad
GB9913241D0 (en) * 1999-06-08 1999-08-04 Foseco Int Impact pad for tundish
US6554167B1 (en) * 2001-06-29 2003-04-29 North American Refractories Co. Impact pad
DE10143396C1 (de) * 2001-09-04 2002-11-28 Rhi Ag Wien Pralltopf
CN2516294Y (zh) * 2001-12-25 2002-10-16 王文刚 连铸中间包冲击槽

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007035452A1 (de) 2007-07-26 2009-01-29 Pa-Ha-Ge Feuerfeste Erzeugnisse Gmbh & Co. Kg Pralltopf
DE102007035452B4 (de) * 2007-07-26 2013-02-21 Pa-Ha-Ge Feuerfeste Erzeugnisse Gmbh & Co. Kg Pralltopf
EP2769785A1 (en) * 2013-02-25 2014-08-27 Refractory Intellectual Property GmbH & Co. KG Refractory impact pad
WO2014128013A1 (en) * 2013-02-25 2014-08-28 Refractory Intellectual Property Gmbh & Co. Kg Refractory impact pad
US9815112B2 (en) 2013-02-25 2017-11-14 Refractory Intellectual Property Gmbh & Co. Kg Refractory impact pad
EA028440B1 (ru) * 2013-02-25 2017-11-30 Рифрэктори Интеллектчуал Проперти Гмбх Унд Ко. Кг Футеровочный отбойный предохранительный стакан

Also Published As

Publication number Publication date
US7128247B2 (en) 2006-10-31
ATE312678T1 (de) 2005-12-15
ES2253708T3 (es) 2006-06-01
TW200414951A (en) 2004-08-16
AU2003258559A1 (en) 2004-02-25
DE10235867B3 (de) 2004-04-08
BR0305743A (pt) 2004-09-28
CN1628006A (zh) 2005-06-15
MXPA04005836A (es) 2005-05-17
US20040256775A1 (en) 2004-12-23
PL369961A1 (en) 2005-05-02
PL199731B1 (pl) 2008-10-31
BR0305743B1 (pt) 2011-05-31
CA2466646A1 (en) 2004-02-19
RU2284246C2 (ru) 2006-09-27
DE50301952D1 (de) 2006-01-19
EP1526940A1 (de) 2005-05-04
CN1298464C (zh) 2007-02-07
EG23513A (en) 2006-03-08
RU2004113204A (ru) 2005-08-20
TWI238748B (en) 2005-09-01
WO2004014585A1 (de) 2004-02-19
CA2466646C (en) 2009-07-28
AU2003258559B2 (en) 2005-06-02

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