WO2003013766A2 - Corps moule en ceramique - Google Patents

Corps moule en ceramique Download PDF

Info

Publication number
WO2003013766A2
WO2003013766A2 PCT/EP2002/008439 EP0208439W WO03013766A2 WO 2003013766 A2 WO2003013766 A2 WO 2003013766A2 EP 0208439 W EP0208439 W EP 0208439W WO 03013766 A2 WO03013766 A2 WO 03013766A2
Authority
WO
WIPO (PCT)
Prior art keywords
molded body
ceramic molded
steel cladding
scale
ceramic
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.)
Ceased
Application number
PCT/EP2002/008439
Other languages
German (de)
English (en)
Other versions
WO2003013766A3 (fr
Inventor
Stefan Pischek
Manfred Winkelmann
Peter Meier
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
Priority to UA2003076165A priority Critical patent/UA73624C2/uk
Priority to EP02758405A priority patent/EP1412306B1/fr
Priority to DE50206679T priority patent/DE50206679D1/de
Priority to MXPA04000948A priority patent/MXPA04000948A/es
Priority to AU2002325375A priority patent/AU2002325375A1/en
Priority to US10/472,609 priority patent/US20040100003A1/en
Priority to BR0205831-6A priority patent/BR0205831A/pt
Publication of WO2003013766A2 publication Critical patent/WO2003013766A2/fr
Publication of WO2003013766A3 publication Critical patent/WO2003013766A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B22D41/50—Pouring-nozzles

Definitions

  • ceramic moldings are used in metal casting, for example as a spout in slide closure systems, for example in continuous metal casting.
  • the invention is not limited to the use of ceramic shaped bodies as a spout in slide closure systems, it is described below by way of example for such an application.
  • spouts in the slide closure system are used to introduce melt, for example steel melt, from the ladle into the intermediate container (tundish) or from the tundish into the mold.
  • the spouts can be made up in the form of tophats (plate with integrated spout) or as an exchangeable spout. With the interchangeable spout, the spout can be removed as a separate part from the slide closure system and can therefore be replaced.
  • Ceramic moldings in the form of spouts are usually surrounded on their outer circumferential surface with a sheet metal jacket made of steel. This can improve the mechanical properties as well as the chemical resistance of the spout.
  • oxides scale
  • This so-called scaling is based on the reaction of the metal sheet jacket with the oxygen in the air.
  • the oxidation begins above approximately 400 ° C and becomes particularly strong at temperatures above approximately 600 ° C.
  • the thickness of the scale layer increases with time and temperature. If the scale layer flakes off, is removed by mechanical attack or, as is usually the case with thermal cycling, becomes cracked, the scaling of the sheet metal shell increases considerably.
  • the sheet metal jacket can scale to such an extent that it can no longer perform its task of improving the mechanical and chemical properties of the spout.
  • the argon gassing cannot always completely prevent the scaling of the sheet metal jacket.
  • the invention has for its object to provide a ceramic molded body, the surface of which is at least partially covered by a steel cladding, which can be used economically and in which the steel cladding is subject to reduced scaling even at high temperatures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Building Environments (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

L'invention concerne un corps moulé en céramique dont la surface est recouverte au moins par endroits par un revêtement en acier. Ledit revêtement en acier est recouvert, sur sa face qui ne recouvre pas le corps moulé, au moins par endroits, d'un matériau résistant au calaminage.
PCT/EP2002/008439 2001-08-02 2002-07-30 Corps moule en ceramique Ceased WO2003013766A2 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
UA2003076165A UA73624C2 (en) 2001-08-02 2002-07-30 Ceramic molded body
EP02758405A EP1412306B1 (fr) 2001-08-02 2002-07-30 Corps moule en ceramique
DE50206679T DE50206679D1 (de) 2001-08-02 2002-07-30 Keramischer formkörper
MXPA04000948A MXPA04000948A (es) 2001-08-02 2002-07-30 CUERPO MOLDEADO DE CERaMICA.
AU2002325375A AU2002325375A1 (en) 2001-08-02 2002-07-30 Ceramic moulded body
US10/472,609 US20040100003A1 (en) 2001-08-02 2002-07-30 Ceramic moulded body
BR0205831-6A BR0205831A (pt) 2001-08-02 2002-07-30 Corpos moldados cerâmicos

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10137758A DE10137758C2 (de) 2001-08-02 2001-08-02 Keramischer Formkörper
DE10137758.4 2001-08-02

Publications (2)

Publication Number Publication Date
WO2003013766A2 true WO2003013766A2 (fr) 2003-02-20
WO2003013766A3 WO2003013766A3 (fr) 2003-12-04

Family

ID=7694038

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/008439 Ceased WO2003013766A2 (fr) 2001-08-02 2002-07-30 Corps moule en ceramique

Country Status (12)

Country Link
US (1) US20040100003A1 (fr)
EP (1) EP1412306B1 (fr)
AR (1) AR035271A1 (fr)
AT (1) ATE325086T1 (fr)
AU (1) AU2002325375A1 (fr)
BR (1) BR0205831A (fr)
DE (2) DE10137758C2 (fr)
ES (1) ES2261711T3 (fr)
MX (1) MXPA04000948A (fr)
RU (1) RU2249494C1 (fr)
UA (1) UA73624C2 (fr)
WO (1) WO2003013766A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004008382A1 (de) * 2004-02-20 2005-09-08 Refratechnik Holding Gmbh Metallummanteltes Wechselbauteil einer Stahlgießanlage

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841539A (en) * 1973-03-01 1974-10-15 United States Steel Corp Collector nozzle for slidable gates
DE2451180A1 (de) * 1973-10-29 1975-04-30 Uss Eng & Consult Verfahren und vorrichtung zum vergiessen von metall aus einem giessgefaess in ein anderes
GB1490982A (en) * 1974-01-16 1977-11-09 Flogates Ltd Pouring of molten metals
GB1477173A (en) * 1974-06-15 1977-06-22 Flogates Ltd Sliding gate valve
US3937372A (en) * 1974-10-25 1976-02-10 United States Steel Corporation Sliding gate mechanism with side wall mounted biasing springs
GB1593371A (en) * 1976-06-25 1981-07-15 Didier Werke Ag Refractory structures
DE2733665C2 (de) * 1977-07-26 1985-10-24 Didier-Werke Ag, 6200 Wiesbaden Auswechselbare Verschleißteile für Schiebeverschlüsse
GB2065278B (en) * 1979-12-14 1983-10-12 Flogates Ltd Composite moulded refractory articles amd their manufacture
IT1142623B (it) * 1981-12-22 1986-10-08 Flocon Italiana Procedimento per rigenerare una piastra mobile di un cassetto di colata di una siviera
US4561573A (en) * 1982-08-20 1985-12-31 Flo-Con Systems, Inc. Valve and replaceable collector nozzle
DE3434857C1 (de) * 1984-09-22 1992-06-11 Didier-Werke Ag, 6200 Wiesbaden Schieberverschluss fuer den Ausguss metallurgischer Gefaesse
US4822689A (en) * 1985-10-18 1989-04-18 Union Carbide Corporation High volume fraction refractory oxide, thermal shock resistant coatings
BE1000948A3 (fr) * 1987-10-02 1989-05-23 Internat Ind Engineering Sprl Tube de coulee pour dispositif de fermeture coulissante.
CH675976A5 (fr) * 1988-01-15 1990-11-30 Stopinc Ag
JP2934187B2 (ja) * 1996-05-17 1999-08-16 明智セラミックス株式会社 連続鋳造用ロングノズル

Also Published As

Publication number Publication date
EP1412306B1 (fr) 2006-05-03
WO2003013766A3 (fr) 2003-12-04
BR0205831A (pt) 2003-08-26
DE10137758A1 (de) 2003-02-27
MXPA04000948A (es) 2004-04-20
UA73624C2 (en) 2005-08-15
RU2003120457A (ru) 2005-01-10
ES2261711T3 (es) 2006-11-16
DE10137758C2 (de) 2003-06-05
EP1412306A2 (fr) 2004-04-28
DE50206679D1 (de) 2006-06-08
AR035271A1 (es) 2004-05-05
US20040100003A1 (en) 2004-05-27
AU2002325375A1 (en) 2003-02-24
RU2249494C1 (ru) 2005-04-10
ATE325086T1 (de) 2006-06-15

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