EP0630710A2 - Plaque réfractaire obturatrice pour obturateurs coulissants de récipients métallurgiques et procédé de fabrication de la plaque obturatrice - Google Patents

Plaque réfractaire obturatrice pour obturateurs coulissants de récipients métallurgiques et procédé de fabrication de la plaque obturatrice Download PDF

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Publication number
EP0630710A2
EP0630710A2 EP94104659A EP94104659A EP0630710A2 EP 0630710 A2 EP0630710 A2 EP 0630710A2 EP 94104659 A EP94104659 A EP 94104659A EP 94104659 A EP94104659 A EP 94104659A EP 0630710 A2 EP0630710 A2 EP 0630710A2
Authority
EP
European Patent Office
Prior art keywords
frame
base body
closure
plate
closure plate
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
EP94104659A
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German (de)
English (en)
Other versions
EP0630710B1 (fr
EP0630710A3 (fr
Inventor
Leopold Dipl.-Ing. Schladofsky
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Publication of EP0630710A2 publication Critical patent/EP0630710A2/fr
Publication of EP0630710A3 publication Critical patent/EP0630710A3/fr
Application granted granted Critical
Publication of EP0630710B1 publication Critical patent/EP0630710B1/fr
Anticipated expiration legal-status Critical
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    • 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
    • B22D41/28—Plates therefor
    • 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
    • B22D41/28—Plates therefor
    • B22D41/30—Manufacturing or repairing thereof

Definitions

  • the invention relates to refractory closure plates with at least one sliding surface for slide closures on metallurgical vessels such as ladles and on distribution channels that receive a molten metal, with a base body made of refractory material and an insert molded into the base body, which has a flow opening for the melt and from a high heat - and crack-resistant, peeling and erosion-resistant and chemically resistant material.
  • the invention further relates to processes for producing the closure plates.
  • two-component closure plates of the generic type for two- and three-plate closures on metallurgical vessels consist of a base body made of refractory refractory concrete and an oxide ceramic insert molded into the refractory concrete, which is designed as an insert plate which extends over the adjustment range the sealing plates come into contact with the melt.
  • These two-substance sealing plates are embedded in a sheet metal cassette or a sheet metal bandage, which due to their limited durability are only intended for use, so that the sheets can no longer be used after the refractory material has worn out.
  • the manufacture of the plates for a product manufactured in large quantities is relatively expensive.
  • DE 28 30 199 C2 describes a slide closure plate with a base body made of refractory, tar-containing Pressed material and mortar in a sheet metal cassette or a sheet metal jacket of small wall thickness.
  • the tin cassette with the refractory plate is fastened in a metal support frame of the slide lock.
  • a tar ring with a flow opening for the melt is mortared into the base body of the closure plate.
  • a slide closure plate according to DE 37 09 812 C1 consists of a flow opening for the molten metal refractory plate, which is surrounded by a shrink ring made of thin sheet metal and is clamped in the support frame of the slide closure.
  • the fatigue strength of the slide closure plates known from DE 28 30 199 C2 and DE 37 09 821 C 1 is due to the high thermal stresses that lead to cracking in the base body and damage to the sheet metal cassette or the shrink ring that surround the refractory plate due to the thermal stresses that occur and cause thermal expansion, very low.
  • the production price for these closure plates is too high in view of the limited usability.
  • Another disadvantage is the difficult disposal of e.g. can be seen in the closure plates according to DE 28 30 199 C 2 used tar-containing refractory materials.
  • the invention has for its object to further develop the generic slide closure plate with a view to cost-effective production and a high level of economy through the possibility of multiple use due to a renewal of the refractory base body.
  • the slide closure plate according to the invention is characterized by the following advantages: Pouring the base body made of cement or the like. Simple refractory material into the solid metal frame serving as casting mold around the wear part made of high-quality refractory material with the flow opening for the molten metal represents an inexpensive manufacturing process for slide closure plates. After use in a slide closure, the closure plate can be replaced by Knocking out or pushing the base body out of the metal frame and pouring a new base body into the frame can be overhauled for a new use.
  • the closure plate can be adapted to all slide systems on the market by appropriate shaping of the frame, which is preferably burned out or milled out of a steel plate. Finally, the manufacturing material for the base body of the plate can be disposed of without difficulty.
  • the closure plate 1 a which e.g. is used as a middle plate in a three-plate slide closure of a distribution channel for molten metal, has a solid, one-piece steel frame 2 with an oval shape, which is characterized by high mechanical strength and great thermal resistance.
  • recesses 3 of any shape and holes 4 are incorporated for cooling purposes and to save weight.
  • the steel frame 2 encompasses a refractory base body 5 made of cement or the like material, into which a wear part 6 designed as a ring with a flow opening 7 for the steel melt is molded.
  • the wear part 6 consists of a highly heat and crack resistant, peel and erosion resistant and chemically resistant material, e.g. an oxide ceramic material.
  • the closure plate 1 a can be clamped by means of the head wedges 8 and the side wedges 9 into the displaceable carrier frame of the slide closure, not shown.
  • the slide closure plate 1b according to FIG. 3 has a frame 2 with an outer peripheral surface 10 enlarged by a wave shape for cooling purposes.
  • the wave-shaped configuration of the opening 12 of the frame increases the inner peripheral surface 21 of the frame and improves the heat dissipation from the cast-in base body 5 onto the frame 2.
  • the frame 2 can be made in several parts, and the individual parts of the frame are welded, screwed or glued to one another.
  • the frame 2 of the closure plates 1a, 1b is preferably burned out or milled out of steel plate material with a shape adapted to the respective slide system.
  • the recesses 3 of the frame 2 are also burned out or milled, and the holes 4 are burned out or milled or drilled depending on the size.
  • the base body 5 made of cement or the like material is poured into the frame 2 serving as a casting mold, a casting template being provided on the top and bottom of the frame 2 11 is fastened with an opening 13 corresponding to the frame opening 12 by means of screws 14 which are inserted through the holes 4 in the frame 2 and secured by nuts 15, and the wearing part 6 is held on a fixing mandrel 16 of a base plate 17 on which the frame 2 is placed with the casting templates 11.
  • the closure plate 1a, 1b is then dried at temperatures in a range from 150 to 400.degree.
  • the base body 5 is cast around the insert ring 6 in a separate mold, then dried at temperatures of 150 to 400 ° C. and then mortared or screwed into the frame or frames 2.
  • the top and bottom of the base body 5, which is cast with an excess thickness and held by the frame 2 are ground flat or plane-parallel to the nominal thickness dimension 18 of the plate, so that the plates have an upper and a lower sliding surface 19, 20 received.
  • top and bottom plates of a three-plate slide fastener and the two plates of a two-plate slide fastener are produced in the same manner as described above.
  • FIGS. 5 to 8 show further exemplary embodiments 1c, 1d, 1e of closure plates.
  • closure plate 1e of the embodiment shown in FIG. 8 When using a closure plate 1e of the embodiment shown in FIG. 8 with an outer shape adapted to the shape of the displaceable support frame of a slide closure, the closure plate 1e takes over the function of the previously usual support frame, so that it can be omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Sliding Valves (AREA)
EP94104659A 1993-04-03 1994-03-24 Plaque réfractaire obturatrice pour obturateurs coulissants de récipients métallurgiques et procédé de fabrication de la plaque obturatrice Expired - Lifetime EP0630710B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4310965 1993-04-03
DE4310965 1993-04-03

Publications (3)

Publication Number Publication Date
EP0630710A2 true EP0630710A2 (fr) 1994-12-28
EP0630710A3 EP0630710A3 (fr) 1996-01-31
EP0630710B1 EP0630710B1 (fr) 2000-09-06

Family

ID=6484647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94104659A Expired - Lifetime EP0630710B1 (fr) 1993-04-03 1994-03-24 Plaque réfractaire obturatrice pour obturateurs coulissants de récipients métallurgiques et procédé de fabrication de la plaque obturatrice

Country Status (7)

Country Link
EP (1) EP0630710B1 (fr)
AT (1) ATE196108T1 (fr)
DE (2) DE4339316C2 (fr)
DK (1) DK0630710T3 (fr)
ES (1) ES2149224T3 (fr)
GR (1) GR3034993T3 (fr)
PT (1) PT630710E (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001094056A1 (fr) * 2000-06-09 2001-12-13 Orient Abrasives Limited Systeme de plaques pour vanne tiroir renforcees a la fibre d'acier
CN102900892A (zh) * 2012-09-28 2013-01-30 长兴国盛耐火材料有限公司 三次风阀板生产方法
KR20230149612A (ko) * 2022-04-20 2023-10-27 조선내화 주식회사 캠을 이용한 슬라이드 게이트용 밸브판의 자동 클램핑 장치
KR20230149611A (ko) * 2022-04-20 2023-10-27 조선내화 주식회사 개선된 구조의 슬라이드 게이트용 밸브판 및 이를 이용한 슬라이드 게이트

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19615696C2 (de) * 1996-03-21 1999-01-07 Zimmermann & Jansen Gmbh Gießpfannen-Schieberanordnung
DE19917851C2 (de) * 1999-04-21 2003-04-10 Didier Werke Ag Drehschieberplatte
DE10301049A1 (de) * 2003-01-13 2004-07-22 Pa-Ha-Ge Feuerfeste Erzeugnisse Gmbh & Co. Kg Feuerfeste Verschlussplatte für Schieberverschlüsse an metallurgischen Gefäßen und Verfahren zu ihrer Herstellung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2620487A1 (de) * 1976-05-08 1977-11-24 Bayer Ag Verfahren zur herstellung vernetzter kunststoffe
DE2719105B2 (de) * 1977-04-29 1979-10-31 Didier-Werke Ag, 6200 Wiesbaden Feuerfeste Platte für Schieberverschlüsse an metallurgischen Gefäßen
FR2419785A1 (fr) * 1978-03-13 1979-10-12 Kaiser Electro Refractaire Procede pour la fabrication d'obturateurs glissants pour busettes de coulee et objets analogues
DE2830199C2 (de) * 1978-07-10 1979-11-08 Martin & Pagenstecher Gmbh, 5000 Koeln Feuerfeste Platte für einen Schieber-Verschluß an Metallschmelze enthaltenden Gefäßen
DE8013402U1 (de) * 1980-05-17 1980-08-21 Martin & Pagenstecher Gmbh, 5000 Koeln Schieberplatte fuer schieberverschluesse
DE3337105A1 (de) * 1983-10-12 1985-05-15 Gonschorek, Axel Friedrich, 6670 St Ingbert Verfahren zur herstellung oder reparatur eines plattenfoermigen schieberelementes aus feuerfestem material fuer den schieberverschluss einer giesspfanne
DE3538499C1 (de) * 1985-10-30 1987-05-07 Didier Werke Ag Feuerfeste Verschleissplatte fuer Schieberverschluesse an metallurgischen Gefaessen
DE3614730A1 (de) * 1986-04-30 1987-11-05 Didier Werke Ag Feuerfester formkoerper, insbesondere platte fuer schieberverschluesse
DE3709812C1 (de) * 1987-03-25 1988-01-21 Stopinc Ag Feuerfeste Platte fuer Schiebeverschluesse am Ausguss metallurgischer Gefaesse

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001094056A1 (fr) * 2000-06-09 2001-12-13 Orient Abrasives Limited Systeme de plaques pour vanne tiroir renforcees a la fibre d'acier
CN102900892A (zh) * 2012-09-28 2013-01-30 长兴国盛耐火材料有限公司 三次风阀板生产方法
KR20230149612A (ko) * 2022-04-20 2023-10-27 조선내화 주식회사 캠을 이용한 슬라이드 게이트용 밸브판의 자동 클램핑 장치
KR20230149611A (ko) * 2022-04-20 2023-10-27 조선내화 주식회사 개선된 구조의 슬라이드 게이트용 밸브판 및 이를 이용한 슬라이드 게이트
KR102608857B1 (ko) 2022-04-20 2023-12-04 조선내화 주식회사 개선된 구조의 슬라이드 게이트용 밸브판 및 이를 이용한 슬라이드 게이트
KR102622383B1 (ko) 2022-04-20 2024-01-10 조선내화 주식회사 캠을 이용한 슬라이드 게이트용 밸브판의 자동 클램핑 장치

Also Published As

Publication number Publication date
EP0630710B1 (fr) 2000-09-06
ATE196108T1 (de) 2000-09-15
PT630710E (pt) 2000-12-29
ES2149224T3 (es) 2000-11-01
GR3034993T3 (en) 2001-03-30
EP0630710A3 (fr) 1996-01-31
DE4339316C2 (de) 1996-11-14
DK0630710T3 (da) 2001-03-19
DE59409511D1 (de) 2000-10-12
DE4339316A1 (de) 1994-10-06

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