EP2011591A2 - Apparatus for dispensing molten metal and method of manufacturing such an apparatus - Google Patents

Apparatus for dispensing molten metal and method of manufacturing such an apparatus Download PDF

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Publication number
EP2011591A2
EP2011591A2 EP08159059A EP08159059A EP2011591A2 EP 2011591 A2 EP2011591 A2 EP 2011591A2 EP 08159059 A EP08159059 A EP 08159059A EP 08159059 A EP08159059 A EP 08159059A EP 2011591 A2 EP2011591 A2 EP 2011591A2
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EP
European Patent Office
Prior art keywords
ceramic
mass
casting
plates
closing mechanism
Prior art date
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Granted
Application number
EP08159059A
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German (de)
French (fr)
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EP2011591A3 (en
EP2011591B1 (en
Inventor
Erkki Helanto
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Indref Oy
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Indref Oy
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Publication of EP2011591A2 publication Critical patent/EP2011591A2/en
Publication of EP2011591A3 publication Critical patent/EP2011591A3/en
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Publication of EP2011591B1 publication Critical patent/EP2011591B1/en
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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
    • 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
    • B22D41/14—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
    • 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
    • B22D41/40—Means for pressing the plates together

Definitions

  • the invention relates to a closing mechanism for a hole-bottomed container for dispensing molten metal and to a method of manufacturing such a closing mechanism.
  • the closing element for a funnel originating from the bottom of a molten-metal holding ladle used to comprise an upward and downward movable stopper rod, which was coupled with a lifting bar extending across the surface of molten metal.
  • the trouble here relates to guiding the stopper rod precisely to the taphole for closing the funnel after a molten metal pouring process.
  • the stopper rod became rapidly worn in use.
  • the slide gate is constituted by a horizontal plate, which is set against the bottom end of a vertical funnel and which is rotatable about a vertical axis, and which is provided with hole which can be aligned with the end of a funnel for opening the funnel, and which can be rotated aside from the alignment with a funnel for closing the funnel.
  • the plate establishing a slide gate is supported on a bulky frame responsible for transmitting a rotation to the plate. Such an assembly is difficult to build, awkward, and unreliable in operation.
  • publication EP 0 332 867 A1 discloses a closing mechanism connected to the bottom of a container, wherein a funnel for pouring molten metal out by way of a bottom hole is established by rotating a hole present in a circular rod to the concentricity with a hole extending through the rest of the closing assembly.
  • a closing mechanism connected to the bottom of a container, wherein a funnel for pouring molten metal out by way of a bottom hole is established by rotating a hole present in a circular rod to the concentricity with a hole extending through the rest of the closing assembly.
  • WO 2005/042190 A1 is a metal-structured apparatus assembled from sliding plates, wherein the middle plate of a plate stack consisting of three plates is capable of being slid with respect to the upper and lower stationary plates for closing and opening a spout extending through the plates.
  • the steel-fabricated plate stack has been assembled by means of a separate, erectable, bulky steel frame, which holds the entire package together. Such a structure is complicated and quite heavy, as well as bulky.
  • An object of the invention is to provide a closing mechanism adaptable to the holed bottom of a metal pouring ladle, which is devoid of drawbacks found in the foregoing closing elements, but which functions well also at high temperatures required by metal casting.
  • the solution according to the invention enables manufacturing an economically efficient closing mechanism and having said closing mechanism integrated for a single piece.
  • Advantages of the invention include simplicity, low manufacturing costs, and easy replacement of the assembly.
  • Fig. 1 illustrates a closing mechanism 1 in cross-section.
  • the closing mechanism 1 consists of three superimposed ceramic plates 2, 3 and 4, each provided with a hole 5.
  • the closing mechanism 1 is in a completely open condition when all three holes 5 are in alignment along a common axis 6.
  • Displacing the middle plate 3 relative to the upper and lower plates 2 and 4 into the interior of the closing mechanism, as indicated by an arrow 14, enables the hole 5 extending through the plates to be closed and the flowing of molten mass out of a hole-bottomed ladle to be stopped.
  • the plate package of three plates 2, 3 and 4 has been assembled together by casting it in a ceramic frame structure 7, which in this embodiment extends continuously around the plate package over five sides, with the exception of a downward pouring spout 8 which is aligned on the same axis 6 as the hole 5 of the fixedly mounted lower and upper plates, and with the exception of a top surface 9 of the upper plate 2 which comes to bear against the bottom of a ladle (not shown in the figure).
  • a ceramic frame structure 7 to be cast of ceramic mass is its metallic casting mold/outer housing 10, in which the plate package and refractory casting mass are placed in a manufacturing stage of the closing mechanism 1.
  • the closing mechanism 1 can be secured to the bottom of a ladle for example by bolts 11 and by brackets/washers 12 associated therewith.
  • the closing mechanism 1 has its middle plate 3 manipulated by means of a guide element 13 for opening and closing a pouring spout, as indicated by the arrow 14.
  • an air conduit 17 for enabling a displacement of the middle plate 3 from a vacant space 16, said air conduit extending through the ceramic frame structure 7 and the metallic casting mold 10.
  • This same conduit 17 can be used for the expulsion of a material used during a casting process, a so-called filler/blocker, which prevents the casting material from reaching certain areas (the middle plate operating range).
  • a filler is any material familiar in casting technology, such as for example urethane, beeswax or the like.
  • Another option for attaching the closing mechanism 1 to the bottom surface of a ladle is provided for example by clamp mechanisms, which are permanently fixed to the ladle's bottom surface and which can be released and secured for a simple replacement of the entire closing mechanism.
  • An essential feature of the invention is the simple closing mechanism 1, which is easy to replace as a single unit.
  • the ceramic casting 7 is molded on at least two sides of the plate stack.
  • the discussed sides of the plate stack would be those present in the viewing plane of the figure.
  • the process can be continued from here in a stepwise manner with different variations for enclosing the plate stack on all six sides within the casting, of course with the exception of spots essential from the standpoint of operation (the air conduit 16, the pouring spout 8, a supply hole in the upper part of the structure for delivering molten mass to the plate stack, and a recess necessary for manipulating the middle plate).
  • Fig. 2 illustrates a closing mechanism 1 of the invention in a second embodiment.
  • the ceramic plates 2, 3 and 4 can be further fitted along the sides thereof with ceramic, substantially vertical support blocks 15 for facilitating an assembling process of the plate package and a manufacturing process of the closing mechanism 1.
  • Neither of the illustrated embodiments requires separate springs for pressing the plates 2, 3 and 4 against each other as opposed to earlier solutions described in the prior art.
  • the ceramic plates 2, 3 and 4 can be at least partially secured to each other by any prior known method, such as a bonding agent or a mechanical coupling.
  • a closing mechanism 1 also enables designing embodiments, displaying one or more of the features described as follows:
  • the ceramic plates 2, 3 and 4 can be manufactured by firing or casting and are integrated for a single unit by casting the same in the refractory casting mass 7 with the assistance of the metallic outer housing 10.
  • the closing mechanism 1 according to the invention is particularly suitable for use in association with molten steel (temperature about 1500°C), but it naturally useful in association with any molten metal (molten zinc 370°C).
  • a limiting factor is the thermal resistance of ceramic plates, which is appr. 1600° in common commercial products used in association with steel casting processes. On the other hand, if plates are manufactured by using special ceramics, temperatures even higher than this can be reached.
  • a method of manufacturing the closing mechanism 1 comprises the following steps of:
  • the method may, if necessary, involve one or more of the following steps:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)

Abstract

The invention relates to a closing mechanism (1) for dispensing molten metal from a hole-bottomed ladle, said closing mechanism containing three at least partially superimposed ceramic plates (2, 3, 4), each of said plates (2, 3, 4) being provided with a hole (5), said three ceramic plates (2, 3, 4) being cast in a ceramic mass (7), said mass (7) being present on at least two sides of the ceramic plates (2, 3, 4), and the ceramic plates (2, 3, 4), the ceramic mass (7), and a metal shell (10), used as a casting mold, establishing together an integrated unit.

Description

  • The invention relates to a closing mechanism for a hole-bottomed container for dispensing molten metal and to a method of manufacturing such a closing mechanism.
  • The closing element for a funnel originating from the bottom of a molten-metal holding ladle used to comprise an upward and downward movable stopper rod, which was coupled with a lifting bar extending across the surface of molten metal. The trouble here relates to guiding the stopper rod precisely to the taphole for closing the funnel after a molten metal pouring process. In addition, the stopper rod became rapidly worn in use.
  • Due to these problems, taphole stoppers have since been replaced by slide gates, as described e.g. in FI publication print 92022 . The slide gate is constituted by a horizontal plate, which is set against the bottom end of a vertical funnel and which is rotatable about a vertical axis, and which is provided with hole which can be aligned with the end of a funnel for opening the funnel, and which can be rotated aside from the alignment with a funnel for closing the funnel. The plate establishing a slide gate is supported on a bulky frame responsible for transmitting a rotation to the plate. Such an assembly is difficult to build, awkward, and unreliable in operation.
  • On the other hand, publication EP 0 332 867 A1 , included in the prior art, discloses a closing mechanism connected to the bottom of a container, wherein a funnel for pouring molten metal out by way of a bottom hole is established by rotating a hole present in a circular rod to the concentricity with a hole extending through the rest of the closing assembly. Such a structure is complicated and inconvenient, as well as expensive in terms of its manufacturing costs.
  • Further known from publication WO 2005/042190 A1 is a metal-structured apparatus assembled from sliding plates, wherein the middle plate of a plate stack consisting of three plates is capable of being slid with respect to the upper and lower stationary plates for closing and opening a spout extending through the plates. The steel-fabricated plate stack has been assembled by means of a separate, erectable, bulky steel frame, which holds the entire package together. Such a structure is complicated and quite heavy, as well as bulky.
  • An object of the invention is to provide a closing mechanism adaptable to the holed bottom of a metal pouring ladle, which is devoid of drawbacks found in the foregoing closing elements, but which functions well also at high temperatures required by metal casting.
  • The solution according to the invention enables manufacturing an economically efficient closing mechanism and having said closing mechanism integrated for a single piece.
  • Advantages of the invention include simplicity, low manufacturing costs, and easy replacement of the assembly.
  • The invention will now be described more closely with reference to the accompanying figures, in which
    • fig. 1 shows a closing mechanism in one embodiment of the invention, and
    • fig. 2 shows a closing mechanism in a second embodiment of the invention.
  • Fig. 1 illustrates a closing mechanism 1 in cross-section. The closing mechanism 1 consists of three superimposed ceramic plates 2, 3 and 4, each provided with a hole 5. As shown in fig. 1, the closing mechanism 1 is in a completely open condition when all three holes 5 are in alignment along a common axis 6. Displacing the middle plate 3 relative to the upper and lower plates 2 and 4 into the interior of the closing mechanism, as indicated by an arrow 14, enables the hole 5 extending through the plates to be closed and the flowing of molten mass out of a hole-bottomed ladle to be stopped.
  • The plate package of three plates 2, 3 and 4 has been assembled together by casting it in a ceramic frame structure 7, which in this embodiment extends continuously around the plate package over five sides, with the exception of a downward pouring spout 8 which is aligned on the same axis 6 as the hole 5 of the fixedly mounted lower and upper plates, and with the exception of a top surface 9 of the upper plate 2 which comes to bear against the bottom of a ladle (not shown in the figure). Around the frame structure 7 to be cast of ceramic mass is its metallic casting mold/outer housing 10, in which the plate package and refractory casting mass are placed in a manufacturing stage of the closing mechanism 1. Adapted to set directly against the bottom surface of a ladle and its taphole in this embodiment is the plate package's upper plate 2. The closing mechanism 1 can be secured to the bottom of a ladle for example by bolts 11 and by brackets/washers 12 associated therewith. The closing mechanism 1 has its middle plate 3 manipulated by means of a guide element 13 for opening and closing a pouring spout, as indicated by the arrow 14. As the cast structure is substantially airtight, there is provided an air conduit 17 for enabling a displacement of the middle plate 3 from a vacant space 16, said air conduit extending through the ceramic frame structure 7 and the metallic casting mold 10. This same conduit 17 can be used for the expulsion of a material used during a casting process, a so-called filler/blocker, which prevents the casting material from reaching certain areas (the middle plate operating range). Useful as such a filler is any material familiar in casting technology, such as for example urethane, beeswax or the like.
  • Another option for attaching the closing mechanism 1 to the bottom surface of a ladle is provided for example by clamp mechanisms, which are permanently fixed to the ladle's bottom surface and which can be released and secured for a simple replacement of the entire closing mechanism. An essential feature of the invention is the simple closing mechanism 1, which is easy to replace as a single unit.
  • The ceramic casting 7 is molded on at least two sides of the plate stack. In this case, the discussed sides of the plate stack would be those present in the viewing plane of the figure. The process can be continued from here in a stepwise manner with different variations for enclosing the plate stack on all six sides within the casting, of course with the exception of spots essential from the standpoint of operation (the air conduit 16, the pouring spout 8, a supply hole in the upper part of the structure for delivering molten mass to the plate stack, and a recess necessary for manipulating the middle plate).
  • Fig. 2 illustrates a closing mechanism 1 of the invention in a second embodiment. If desired, the ceramic plates 2, 3 and 4 can be further fitted along the sides thereof with ceramic, substantially vertical support blocks 15 for facilitating an assembling process of the plate package and a manufacturing process of the closing mechanism 1. Neither of the illustrated embodiments requires separate springs for pressing the plates 2, 3 and 4 against each other as opposed to earlier solutions described in the prior art. In order to facilitate the assembly thereof, the ceramic plates 2, 3 and 4 can be at least partially secured to each other by any prior known method, such as a bonding agent or a mechanical coupling.
  • A closing mechanism 1 according to the invention also enables designing embodiments, displaying one or more of the features described as follows:
    • the casting mass 7 can be applied on just two sides, namely on both long sides of the plate package,
    • the casting mass 7 can be applied not only on these two sides but also arbitrarily on one or more additional sides, including a top face and a bottom face of the plate package,
    • the pouring spout 8 of the closing mechanism 1, which leads out of the ceramic casting 7 and the metallic casting mold/outer housing 10, can be fabricated also from a ceramic bushing 18 and preset in contact with the lowermost ceramic plate 4, whereby the ceramic casting need not be necessarily extended all the way to the mouth of the pouring spout (the bushing 18 shown in the figure in dashed lines),
    • 1-4 pieces of support blocks 15 can be present in a position mounted arbitrarily on a vertical side perpendicular to the plate level of the plates.
  • The ceramic plates 2, 3 and 4 can be manufactured by firing or casting and are integrated for a single unit by casting the same in the refractory casting mass 7 with the assistance of the metallic outer housing 10.
  • The closing mechanism 1 according to the invention is particularly suitable for use in association with molten steel (temperature about 1500°C), but it naturally useful in association with any molten metal (molten zinc 370°C). A limiting factor is the thermal resistance of ceramic plates, which is appr. 1600° in common commercial products used in association with steel casting processes. On the other hand, if plates are manufactured by using special ceramics, temperatures even higher than this can be reached.
  • A method of manufacturing the closing mechanism 1 comprises the following steps of:
    • assembling a plate package, consisting of three finished plates 2, 3 and 4 from precision-machined closing plates used in steel making industry, and optional upright support blocks, the assembling process being performed by using, if necessary, for example a bonding agent, a mechanical coupling or the like option,
    • aligning the plate package of three plates 2, 3 and 4 inside a casting mold 10 in a correct position by using necessary casting support blocks,
    • fitting the plate package with necessary plugging means for preventing the ceramic casting 7 from reaching undesired sites (an air space 16 at the end of a middle plate 3, an air communication 17 out of the air space 16 at the middle plate 3, a pouring spout 8) by the application of methods known in casting engineering,
    • performing the casting of a ceramic mass 7 at room temperature either in the position shown in fig. 1 or alternatively in the upside-down position,
    • drying/curing the ceramic casting mass 7 at room temperature for a period required by the casting mass (typically about a week) or, alternatively, using a casting mass good for dry pressing.
  • In addition to these steps, the method may, if necessary, involve one or more of the following steps:
    • in case the ceramic casting 7 is effected so as to cover also a top face of the closing mechanism 1 (the uppermost plate 2), the pouring spout can have its inlet end between the closing mechanism and the ladle fitted beforehand with necessary connecting bodies/seals to be embedded at least partially within the casting,
    • the final stage of manufacturing is performed by raising the temperature from about 400°C, the casting mass 7 being vacated of possible water (the casting mass may also be originally water-free or it is possible to use for example masses which are good for dry pressing) and/or a so-called filling/plugging medium used in the mold.
  • It is obvious for a person skilled in the art that various embodiments of the invention are not limited to the foregoing example, but may vary within the scope of protection defined in the appended claims.

Claims (13)

  1. A closing mechanism (1) for dispensing molten metal from a gate-bottomed ladle, said closing mechanism (1) containing three at least partially superimposed ceramic plates (2, 3, 4), each of said plates (2, 3, 4) being provided with a hole (5), characterized in that said three ceramic plates (2, 3, 4) are cast in a ceramic mass (7), said mass (7) being present on at least two sides of the ceramic plates (2, 3, 4), and the ceramic plates (2, 3, 4), the ceramic mass (7), and a metal shell (10), used as a casting mold, establish together an integrated unit.
  2. A closing mechanism (1) according to claim 1, characterized in that the ceramic mass (7) is optionally present on 3-6 of the six sides of the ceramic plates (2, 3, 4).
  3. A closing mechanism (1) according to claim 1, characterized in that the side/sides perpendicular to the plate level of the ceramic plates (2, 3, 4) is/are provided with 1-4 ceramic support blocks (15).
  4. A closing mechanism (1) according to claim 1, characterized in that a pouring hole (5) of the ceramic plates (2, 3, 4) has additionally a ceramic bushing (18) mounted as its extension.
  5. A closing mechanism (1) according to claim 1, characterized in that, when the ceramic casting mass (7) comprises a top face of the uppermost ceramic plate (2), the ceramic mass (7) has additionally cast therein a connecting block and/or a sealing block abutting against the bottom hole of a ladle.
  6. A method of manufacturing a closing mechanism (1) used for dispensing molten metal, said method comprising the following steps of:
    - producing three ceramic plates (2, 3, 4), each of which is provided with a hole (5) for establishing a pouring spout,
    - positioning the plates (2, 3, 4) in such a way that a displacement of the middle plate (3) with respect to the uppermost and lowermost plates (2, 4) enables the pouring spout to be closed or opened,
    characterized in that
    - the access of a casting mass (7) to undesired areas is denied by plugging or filling such areas,
    - the ceramic plates (2, 3, 4) are positioned in a metallic outer housing (10), which functions as a casting mold,
    - the outer housing (10) is filled with the refractory casting mass (7), such that some casting mass (7) will be present on at least two sides of the plates (2, 3, 4),
    - the refractory casting mass (7) is cured,
    - the plugging/filling media are removed.
  7. A method according to claim 6, characterized in that it further comprises an installation process of necessary casting support blocks prior to filling the outer housing (10) with the casting mass (7).
  8. A method according to claim 6, characterized in that it further comprises a casting process of the casting mass (7) over 3-6 sides of the ceramic plates (2, 3, 4).
  9. A method according to claim 8, characterized in that, when the casting mass (8) covers a top face of the uppermost plate (2), the casting mass (7) has beforehand inserted therein a connecting block and/or a sealing block for a hole-bottomed ladle.
  10. A method according to claim 6, characterized in that the final step comprises heating the closing mechanism (1) from about 400°C for dewatering the casting mass (7).
  11. A method according to claim 6, characterized in that a curing process of the refractory casting mass (7) is effected at room temperature in about a week, depending on a type of mass being used.
  12. A method according to claim 6, characterized in that a curing process of the refractory casting mass (7) is effected by pressing when using a casting mass suitable for dry pressing.
  13. A method according to claim 6, characterized in that a hole (5) of the lowermost ceramic plate (4) is fitted with a ceramic bushing (18) as its extension.
EP08159059A 2007-07-06 2008-06-26 Apparatus for dispensing molten metal and method of manufacturing such an apparatus Active EP2011591B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20070533A FI120385B (en) 2007-07-06 2007-07-06 Sealing mechanism for metering of metal melt and method for manufacturing a sealing mechanism

Publications (3)

Publication Number Publication Date
EP2011591A2 true EP2011591A2 (en) 2009-01-07
EP2011591A3 EP2011591A3 (en) 2009-02-11
EP2011591B1 EP2011591B1 (en) 2012-02-01

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EP08159059A Active EP2011591B1 (en) 2007-07-06 2008-06-26 Apparatus for dispensing molten metal and method of manufacturing such an apparatus

Country Status (8)

Country Link
US (1) US20090008056A1 (en)
EP (1) EP2011591B1 (en)
JP (1) JP5440829B2 (en)
CN (1) CN101337272B (en)
AT (1) ATE543593T1 (en)
ES (1) ES2386059T3 (en)
FI (1) FI120385B (en)
RU (1) RU2467828C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8366990B2 (en) 2009-01-15 2013-02-05 Indref Oy Repairable slide shutter plate and/or bottom nozzle brick and methods for the manufacture and repair of a repairable slide shutter plate and/or bottom nozzle brick

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2767878C (en) 2009-07-15 2017-12-19 Koninklijke Philips Electronics N.V. Activity adapted automation of lighting
CN106270446B (en) * 2015-05-25 2018-04-10 天津世创机械制造有限公司 A kind of die casting of adjustable die stream speed
CN106273176B (en) * 2015-05-25 2018-07-17 天津市飞奥达风能设备有限公司 A kind of die casting that mould material can crush
KR101795468B1 (en) * 2016-03-10 2017-11-10 주식회사 포스코 Gate Apparatus
CN107175326A (en) * 2017-06-28 2017-09-19 秦皇岛首秦金属材料有限公司 A kind of steel ladle slide board structure
CN115026269A (en) * 2022-05-18 2022-09-09 夏广翠 Molten aluminum casting ladle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332867A1 (en) 1988-03-18 1989-09-20 Didier-Werke Ag Turning and/or sliding lock and its locking parts
WO2005042190A1 (en) 2003-10-31 2005-05-12 Stopinc Aktiengesellschaft Sliding closing element, with coupling

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662986A (en) * 1970-02-25 1972-05-16 Raymond J Domulewicz Sr Stopper block
CH562647A5 (en) * 1973-04-17 1975-06-13 Stopinc Ag
DE2719105B2 (en) * 1977-04-29 1979-10-31 Didier-Werke Ag, 6200 Wiesbaden Fireproof plate for slide valve closures on metallurgical vessels
JPS5598469U (en) * 1978-12-28 1980-07-09
GB2043217B (en) * 1979-03-02 1982-10-20 Flogates Ltd Spring device for sliding gate valve
GB2117498B (en) * 1982-04-01 1985-07-17 Flogates Ltd Sliding gate valves
DE3334438C1 (en) * 1983-09-23 1984-07-12 Zimmermann & Jansen GmbH, 5160 Düren Manual actuation mechanism for a ladle slide closure
GB8723059D0 (en) * 1987-10-01 1987-11-04 Foseco Int Rotary pouring nozzle
CH675976A5 (en) * 1988-01-15 1990-11-30 Stopinc Ag
DE3869609D1 (en) * 1988-08-31 1992-04-30 Metacon Ag FIRE-RESISTANT PLATE SET FOR THREE-PLATE SLIDING LATCHES.
JPH0293065U (en) * 1989-01-10 1990-07-24
CN2091191U (en) * 1991-02-12 1991-12-25 新乡市耐火材料厂 Adjusting sliding water gap valve
JPH07308757A (en) * 1994-05-18 1995-11-28 Tokyo Yogyo Co Ltd Sliding nozzle plate
US5518154A (en) * 1994-11-17 1996-05-21 Usx Corporation Gate and pour tube assembly for use in throttling gate valve
JPH09225628A (en) * 1996-02-26 1997-09-02 Kurosaki Refract Co Ltd Plate brick
JPH1071460A (en) * 1996-08-30 1998-03-17 Kawasaki Refract Co Ltd Manufacture of sliding nozzle plate brick by simultaneously forming different materials
CA2242501C (en) * 1997-07-16 2009-06-16 Werner Keller Sliding gate valve for a vessel containing molten metal
US6250521B1 (en) * 2000-02-02 2001-06-26 Ltv Steel Company, Inc. Preventing air aspiration in slide gate plate throttling mechanisms
MXPA02009077A (en) * 2000-03-16 2003-03-12 Vesuvius Crucible Co Sliding gate for liquid metal flow control.
JP3817109B2 (en) * 2000-03-21 2006-08-30 新日本製鐵株式会社 Sealing material for casting nozzle
JP2002115204A (en) * 2000-10-06 2002-04-19 Masao Sato Manufacturing method for permeable concrete block using molten slag of general waste
DE102004050702B3 (en) * 2004-10-18 2006-02-02 Refractory Intellectual Property Gmbh & Co. Kg slide plate
ITMI20051039A1 (en) * 2005-06-03 2006-12-04 Gio Batta Masnata METHOD FOR THE PREPARATION OF A SIVIERA WITH A FILLING AND CASTING CYCLE AND DEVICE TO IMPLEMENT THIS METHOD
CN2897501Y (en) * 2005-12-23 2007-05-09 濮阳濮耐高温材料有限公司 Sliding water gap mechanism and its frame structure
CN2865931Y (en) * 2006-01-18 2007-02-07 宝山钢铁股份有限公司 Agron sealing device adapted to pouring basket sliding plate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332867A1 (en) 1988-03-18 1989-09-20 Didier-Werke Ag Turning and/or sliding lock and its locking parts
WO2005042190A1 (en) 2003-10-31 2005-05-12 Stopinc Aktiengesellschaft Sliding closing element, with coupling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8366990B2 (en) 2009-01-15 2013-02-05 Indref Oy Repairable slide shutter plate and/or bottom nozzle brick and methods for the manufacture and repair of a repairable slide shutter plate and/or bottom nozzle brick

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FI120385B (en) 2009-10-15
CN101337272B (en) 2012-06-13
FI20070533A (en) 2009-01-07
RU2008126194A (en) 2010-01-10
JP5440829B2 (en) 2014-03-12
US20090008056A1 (en) 2009-01-08
EP2011591A3 (en) 2009-02-11
CN101337272A (en) 2009-01-07
FI20070533A0 (en) 2007-07-06
EP2011591B1 (en) 2012-02-01
JP2009012077A (en) 2009-01-22
ES2386059T3 (en) 2012-08-08
ATE543593T1 (en) 2012-02-15
RU2467828C2 (en) 2012-11-27

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