EP2011591B1 - 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
EP2011591B1
EP2011591B1 EP08159059A EP08159059A EP2011591B1 EP 2011591 B1 EP2011591 B1 EP 2011591B1 EP 08159059 A EP08159059 A EP 08159059A EP 08159059 A EP08159059 A EP 08159059A EP 2011591 B1 EP2011591 B1 EP 2011591B1
Authority
EP
European Patent Office
Prior art keywords
ceramic
mass
casting
plates
closing mechanism
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.)
Active
Application number
EP08159059A
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German (de)
English (en)
French (fr)
Other versions
EP2011591A2 (en
EP2011591A3 (en
Inventor
Erkki Helanto
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.)
Indref Oy
Original Assignee
Indref Oy
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Publication of EP2011591A2 publication Critical patent/EP2011591A2/en
Publication of EP2011591A3 publication Critical patent/EP2011591A3/en
Application granted granted Critical
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)
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 (fi) 2007-07-06 2007-07-06 Sulkumekanismi sulan metallin annostelemiseksi ja menetelmä sulkumekanismin valmistamiseksi

Publications (3)

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

Family

ID=38331550

Family Applications (1)

Application Number Title Priority Date Filing Date
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 (fi)
EP (1) EP2011591B1 (fi)
JP (1) JP5440829B2 (fi)
CN (1) CN101337272B (fi)
AT (1) ATE543593T1 (fi)
ES (1) ES2386059T3 (fi)
FI (1) FI120385B (fi)
RU (1) RU2467828C2 (fi)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI122542B (fi) 2009-01-15 2012-03-15 Indref Oy Liukusuljinlevyn ja alasuutiilen yhdistelmä ja menetelmä liukusuljinlevyn ja alasuutiilen yhdistelmän korjaamiseksi
CN102474944A (zh) 2009-07-15 2012-05-23 皇家飞利浦电子股份有限公司 照明的活动适应自动化
CN106273176B (zh) * 2015-05-25 2018-07-17 天津市飞奥达风能设备有限公司 一种模料可粉碎的压铸模具
CN106270446B (zh) * 2015-05-25 2018-04-10 天津世创机械制造有限公司 一种可调节模料流速的压铸模具
KR101795468B1 (ko) * 2016-03-10 2017-11-10 주식회사 포스코 게이트 장치
CN107175326A (zh) * 2017-06-28 2017-09-19 秦皇岛首秦金属材料有限公司 一种钢包滑板结构
CN115026269A (zh) * 2022-05-18 2022-09-09 夏广翠 一种铝水浇铸浇包

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US3662986A (en) * 1970-02-25 1972-05-16 Raymond J Domulewicz Sr Stopper block
CH562647A5 (fi) * 1973-04-17 1975-06-13 Stopinc Ag
DE2719105B2 (de) * 1977-04-29 1979-10-31 Didier-Werke Ag, 6200 Wiesbaden Feuerfeste Platte für Schieberverschlüsse an metallurgischen Gefäßen
JPS5598469U (fi) * 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 (de) * 1983-09-23 1984-07-12 Zimmermann & Jansen GmbH, 5160 Düren Handbetaetigungsmechanismus fuer einen Giesspfannenschieberverschluss
GB8723059D0 (en) * 1987-10-01 1987-11-04 Foseco Int Rotary pouring nozzle
CH675976A5 (fi) * 1988-01-15 1990-11-30 Stopinc Ag
DE3809072A1 (de) 1988-03-18 1989-09-28 Didier Werke Ag Dreh- und/oder schieberverschluss und dessen verschlussteile
EP0356551B1 (de) * 1988-08-31 1992-03-25 Metacon AG Feuerfester Plattensatz für Dreiplattenschieberverschlüsse
JPH0293065U (fi) * 1989-01-10 1990-07-24
CN2091191U (zh) * 1991-02-12 1991-12-25 新乡市耐火材料厂 一种调整式滑动水口阀
JPH07308757A (ja) * 1994-05-18 1995-11-28 Tokyo Yogyo Co Ltd スライディングノズルプレート
US5518154A (en) * 1994-11-17 1996-05-21 Usx Corporation Gate and pour tube assembly for use in throttling gate valve
JPH09225628A (ja) * 1996-02-26 1997-09-02 Kurosaki Refract Co Ltd プレートれんが
JPH1071460A (ja) * 1996-08-30 1998-03-17 Kawasaki Refract Co Ltd 異材質の同時成形によるスライディングノズルプレートれんがの製造法
TW369448B (en) * 1997-07-16 1999-09-11 Stopinc Ag 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
ATE309877T1 (de) * 2000-03-16 2005-12-15 Vesuvius Crucible Co Schieberverschluss zur regelung des giessstrahls von flüssigem metall
JP3817109B2 (ja) * 2000-03-21 2006-08-30 新日本製鐵株式会社 鋳造用ノズルのシール材
JP2002115204A (ja) * 2000-10-06 2002-04-19 Masao Sato 一般廃棄物の溶融スラグを用いた透水性コンクリートブロックの製造法
KR20060126975A (ko) * 2003-10-31 2006-12-11 스토핑크 아크티엔게젤샤프트 커플링을 포함하는 미끄럼 폐쇄 요소
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CN2897501Y (zh) * 2005-12-23 2007-05-09 濮阳濮耐高温材料有限公司 滑动水口机构及其框架结构
CN2865931Y (zh) * 2006-01-18 2007-02-07 宝山钢铁股份有限公司 一种适用于中间包滑板的氩封装置

Also Published As

Publication number Publication date
EP2011591A2 (en) 2009-01-07
JP5440829B2 (ja) 2014-03-12
RU2008126194A (ru) 2010-01-10
CN101337272B (zh) 2012-06-13
EP2011591A3 (en) 2009-02-11
ES2386059T3 (es) 2012-08-08
CN101337272A (zh) 2009-01-07
FI20070533A (fi) 2009-01-07
RU2467828C2 (ru) 2012-11-27
FI120385B (fi) 2009-10-15
ATE543593T1 (de) 2012-02-15
US20090008056A1 (en) 2009-01-08
JP2009012077A (ja) 2009-01-22
FI20070533A0 (fi) 2007-07-06

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