EP1567297B1 - Einlegekörper zum schutz der aufprallfläche eines giessstahls in einem metallurgischen gefäss - Google Patents

Einlegekörper zum schutz der aufprallfläche eines giessstahls in einem metallurgischen gefäss Download PDF

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Publication number
EP1567297B1
EP1567297B1 EP03775174A EP03775174A EP1567297B1 EP 1567297 B1 EP1567297 B1 EP 1567297B1 EP 03775174 A EP03775174 A EP 03775174A EP 03775174 A EP03775174 A EP 03775174A EP 1567297 B1 EP1567297 B1 EP 1567297B1
Authority
EP
European Patent Office
Prior art keywords
insert
insert according
cover
impact
boundary walls
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
EP03775174A
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German (de)
English (en)
French (fr)
Other versions
EP1567297A1 (de
Inventor
Richard Fechner
Robert Fechner
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.)
Weerulin Feuerfeste Produkte & Co KG GmbH
Original Assignee
Weerulin Feuerfeste Produkte & Co KG GmbH
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 Weerulin Feuerfeste Produkte & Co KG GmbH filed Critical Weerulin Feuerfeste Produkte & Co KG GmbH
Publication of EP1567297A1 publication Critical patent/EP1567297A1/de
Application granted granted Critical
Publication of EP1567297B1 publication Critical patent/EP1567297B1/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
    • 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
    • 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

Definitions

  • From CH 581 513 A is an insert body made of metal to protect the impact surface of a pouring stream in a metallurgical Known vessel.
  • the insert body has a wire grid, which extends over the upper opening of the insert body and has the task of braking the falling beam during passage.
  • an insert body is known, can be arranged in the material that is to mix with the incident pouring stream. So that the material can not escape from the insert body, the material can be arranged in a bag or the insert body can be provided with a closure made of paper or a material based on cellulose.
  • this insert body on its one side, to which the pouring stream is deflected, no boundary wall. It has been found that the insert bodies disclosed in US Pat. No. 5,169,591 do not reliably prevent uncontrolled spraying of the cast steel. This is due to the fact that formed by the boundary walls upper inlet opening for the casting steel must be kept larger than the diameter of the pouring stream, so that it can always reach safely into the insert body, without impinging on the boundary walls, whereby the casting steel would certainly splash out of the intermediate housing.
  • European patent EP 0 790 873 also discloses a baffle plate for an intermediate vessel made of refractory material, the baffle plate having a baffle surface surrounded by side walls which in turn form an upper surface which forms the inlet opening for the inflowing cast steel. It is essential in this baffle plate that in each case a right angle is formed between the side walls and the baffle surface and between the side walls and the upper surface and / or the inlet opening has a rectangular shape. Also in this baffle plate, the problem arises that the inlet opening must be selected to be larger than the diameter of the inflowing pouring stream, so that it is reliably prevented that the pouring stream does not miss the inlet opening.
  • Object of the present invention is therefore to develop a generic insert body such that the inlet opening is the same size or only slightly larger than the cross section of the inflowing pouring stream, so that uncontrolled splashing out of the casting steel from the insert body upwards is avoided.
  • the insert body has a closed lid, which is partially destroyed or opened only by the impinging cast steel, so that the cast steel can get into the insert body.
  • the jet of the cast steel can in principle impinge on any point of the lid of the insert body, so that no special measures for accurate pouring of the cast steel must be made and the filling of the intermediate container designed a total of simpler.
  • the lid is this advantageous thin-walled design. It may alternatively or additionally be perforated and / or have predetermined breaking points, so that it only breaks up where the cast steel impinges.
  • the predetermined breaking points can in principle be arranged arbitrarily. Thus, it is possible to arrange the predetermined breaking points as transverse and longitudinal lines.
  • the predetermined breaking points can form concentric circles, ellipses, rectangles or polygons.
  • the holes are advantageous so small diameter to be dimensioned that the sprinkling of the impact surface upwards casting steel can not pass through the remaining holes in the lid outside.
  • the lid area which has not been torn into the insert body by the cast steel, advantageously remains existing until the insert body is almost or completely filled.
  • the lid is advantageous during or after completion of the filling process of the insert body melted so that the cast steel can run out over the edge of the insert body.
  • the basic idea here is that it no longer comes to spraying the casting steel when it is filled into an already filled container.
  • the lid is not completely melted, but is broken away from the pressing from below cast steel to the outside, so that the way for the cast steel up from the insert body is free.
  • the lid material of the insert body should be of the same or at least similar nature and quality as the cast steel itself so that it does not contaminate the casting steel. Due to the small dimensions and the particular thin-walled design of the lid, however, there will be no significant contamination when a completely different material is used for the lid.
  • the lid can be bent around the top edges of the side walls so that it is secured against loss.
  • the pot-shaped insert body rests a closed container, which is supported with its outer walls on the inner walls of the insert body.
  • the container forms with its upper wall the lid of the insert body.
  • the container can be easily used from above and is particularly thin-walled, so that it melts during filling of the insert body and mixes with the casting steel. It is also possible to fill the container with a fluid, in particular a gas, such as argon, so that the casting steel does not come into contact with oxygen, and thus there is no unwanted oxidation of the steel.
  • a fluid in particular a gas, such as argon
  • FIG. 1 shows a perspective view of an intermediate container 1, as used for example in continuous casting.
  • the intermediate container has an upper opening 1a, over which the casting steel 3 passes by means of a spigot 2 in the inserted in the intermediate container 1 insert body 4.
  • the insert body 4 according to the invention has a cover 4d which is partially destroyed by the jet of the cast steel 3 when it strikes the cover 4d.
  • the cast steel 3 flows over the edges of the side walls of the insert body 4 and reaches the bottom 1b of the intermediate container 1.
  • the cast steel 3 then passes through openings 1c into molds or tools (not shown).
  • FIG. 2 shows a cross section through an insert body 4 according to the invention, as has already been shown in FIG.
  • the insert body 4 has a bottom 4e, which forms the baffle surface 4f for the impinging cast steel 3.
  • the baffle 4f is bounded by the side walls 4a of the insert body 4.
  • the insert body 4 is closed at the top by the lid 4d. Only the area of the lid 4d, which is hit by the jet of the cast steel 3, is destroyed, so that the steel 3c spouting away from the baffle 4f can reach against the side walls 4c and the lid 4d, but not out of the insert body.
  • the cavity 4b of the insert body 4 is filled relatively quickly with the casting steel 3b, so that the surface 3a of the casting steel accumulating in the insert body rises rapidly and, as shown in FIG. 3, reaches the lid 4d.
  • the lid is made of a similar or identical material to the cast steel 3, so that the lid 4d melts due to the hot cast steel 3 and clears the path for the cast steel from the insert body, as shown in FIG.
  • the cast steel then flows over the side edges 4g of the side walls 4a of the insert body 4 and enters the intermediate container, not shown.
  • FIG. 5 shows an alternative embodiment of an insert body 104 according to the invention, with a baffle surface 104f, sidewalls 104a and a cavity 104b.
  • the in particular thin-walled cover 104d is fastened by means of screws.
  • FIG. 6 also shows an alternative embodiment of an insert body 204 with bottom 204e, which forms the curved baffle 204f, which in the middle has an elevation sloping towards the side walls 204a, through which the impinging cast steel is discharged to the sidewalls 204a.
  • the end faces 204g of the side walls 204a are shown rounded off by way of example. Of course, they can also be edged.
  • the lid 204d is bent around the end faces 204g and engages behind the outwardly directed side walls positively, whereby it is securely held on the insert body.
  • FIG. 7 shows a further possible embodiment of an insert body 304 according to the invention, wherein here the lid 304d is pushed laterally into a slot 304m, which is worked into the inwardly directed end faces 304g of the side walls 304a, with its outer edges 304n.
  • the side walls 304a are curved so that the cast steel impinging on the inner walls 304c is deflected downward, in particular, from the upper part of the side walls 304a.
  • FIG. 8 shows an embodiment in which in the insert body 404 a vessel or closed container 404p rests, which with its upper wall forms the lid 404d of the insert body 404.
  • the container 404q is supported with its outer walls on the inner walls 404c, 404f of the insert body 404.
  • the side walls 404a are directed outwardly so that the container 404p is easily insertable from above into the insert body 404.
  • the container 404p may be filled with a gas 404q for corrosion protection.
  • the container 404p may be thin-walled in the lid region 404d so that it can melt relatively easily.
  • FIG. 9 shows a cross section through a cover 6, whose region 6b, which is to be pierced by the cast steel, has a thin-walled construction, the region surrounding the region 6b being slightly thicker.
  • the transition from region 6a to region 6b can in principle be of any desired design and is illustrated here in a simplified bevelled manner.
  • FIG. 10 shows a cross section through a further possible embodiment of a cover 7 which has perforations in the form of blind bores or recesses 7b.
  • a possible arrangement of the perforations 7b is shown in FIG. 11, wherein the region 7c to be broken by the casting steel is surrounded by perforations 7b arranged in a circle. If the cast steel now strikes the region 7c, the cover is broken along the line formed by the perforations 7b, leaving only the regions 7a of the cover intact.
  • the isolated perforations can also be replaced by continuous break lines or combined with them.
  • Figure 12 shows an embodiment of a lid 8 in which perforations 8b are arranged in rows and columns. Circular the incident beam 3a of a casting steel 3 is shown. The beam 3a will break the portion 8c of the lid 8 along the line 8d which connects the perforations 8b closest to the beam to the lid 8 so that only the portions 8a which have an optimally large reflection area for that of the Impact surface of the insert body high-profile cast steel forms.
  • FIGS. 13 and 14 show a further possible embodiment of an insert body 504 according to the invention.
  • the insert body 504 has a bottom plate 504e, which is adjoined by a peripheral boundary wall 504a which extends vertically upwards.
  • a peripheral boundary wall 504a which extends vertically upwards.
  • an inwardly and downwardly directed collar 504g is formed, which forms with its upper side surface 504g 'a kind of funnel, so that a possibly erroneously oriented pouring stream is still directed into the insert body 504.
  • the insert body can be formed as a circular vessel, wherein the lid 504d may be formed as a cone. For example, the lid may be poured into the collar during the manufacturing process of the insert body 504.
  • the funnel-shaped or conical lid is part of a container 504p, which consists entirely of a same or similar material as the cast steel.
  • the container is then used to make the insert body as an inner mold.
  • the free ends 504g "of the sidewall 504a may be formed as tips, thereby increasing the funnel formed by the collar 504g.
  • the interplay of the circumferential inwardly and downwardly directed collar 504g and the funnel-shaped lid 504d will produce the pouring cast steel
  • the cover 504d melts after some time, and then the cast steel from the side wall and its molded collar in the direction of the pouring pouring jet is directed (arrows)
  • the cover in particular the tip of the cone or funnel, can also be filled with gas may have perforations, for example in the form of holes, so that the lid is only partially destroyed by the impinging pouring stream and forms a defined opening.
  • one or more peripheral material weakenings for example in the form of at least one groove, may also be provided.
  • a groove has the advantage that the container remains closed and thus can be filled with a gas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Closures For Containers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Vibration Dampers (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Continuous Casting (AREA)
  • Ceramic Products (AREA)
  • Cold Cathode And The Manufacture (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP03775174A 2002-12-06 2003-10-08 Einlegekörper zum schutz der aufprallfläche eines giessstahls in einem metallurgischen gefäss Expired - Lifetime EP1567297B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10257395 2002-12-06
DE10257395A DE10257395A1 (de) 2002-12-06 2002-12-06 Einlegekörper für Zwischenbehälter
PCT/EP2003/011125 WO2004052574A1 (de) 2002-12-06 2003-10-08 Einlegekörper für zwischenbehälter

Publications (2)

Publication Number Publication Date
EP1567297A1 EP1567297A1 (de) 2005-08-31
EP1567297B1 true EP1567297B1 (de) 2007-03-21

Family

ID=32336140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03775174A Expired - Lifetime EP1567297B1 (de) 2002-12-06 2003-10-08 Einlegekörper zum schutz der aufprallfläche eines giessstahls in einem metallurgischen gefäss

Country Status (8)

Country Link
EP (1) EP1567297B1 (ru)
AT (1) ATE357303T1 (ru)
AU (1) AU2003283259A1 (ru)
BR (1) BR0316330B1 (ru)
DE (2) DE10257395A1 (ru)
ES (1) ES2285209T3 (ru)
RU (1) RU2351432C2 (ru)
WO (1) WO2004052574A1 (ru)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102917817A (zh) * 2010-07-19 2013-02-06 里弗雷克特里知识产权两合公司 耐火的陶瓷吸震器
WO2016025948A1 (en) * 2014-08-15 2016-02-18 Arcelormittal Investigacion Y Desarrollo, S.L. Impact pad, tundish and apparatus including the impact pad, and method of using same
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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005004118U1 (de) * 2005-03-11 2005-07-21 Weerulin Gmbh Einlegekörper für Zwischenbehälter
DE102006005724B3 (de) * 2006-02-08 2007-05-31 Purmetall Gmbh & Co. Kg Eingusstopf zur Aufnahme einer aus einer Giesspfanne ausfliessenden metallischen Schmelze
DE102006005723A1 (de) * 2006-02-08 2007-08-16 Purmetall Gmbh & Co. Kg Eingusstopf zur Aufnahme einer aus einer Giesspfanne ausfliessenden metallischen Schmelze
EP2047928A1 (en) * 2007-10-08 2009-04-15 Foseco International Limited Metallurgic impact pad
EP2537609A1 (en) * 2011-06-23 2012-12-26 Calderys Ukraine Ltd. Metal-flow impact pad and diffuser for tundish
BR102014025619A2 (pt) * 2014-10-14 2016-05-17 Saint Gobain Do Brasil Produtos Ind E Para Construção Ltda redutor de turbulência com concavidade interna

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1859355A (en) * 1929-10-25 1932-05-24 Walter M Crowther Ingot mold insert
LU33123A1 (ru) * 1955-05-24
FR1408395A (fr) * 1964-07-01 1965-08-13 Procédé et dispositif perfectionnés destinés à l'amélioration de la contexture des métaux ferreux coulés en lingots ou en produits de coulées continues
BE664727A (ru) * 1964-07-01
DE2312137B2 (de) * 1973-03-12 1975-02-27 Kloeckner-Werke, Ag, 4100 Duisburg Verfahren zum Abgießen von mit Silizium und/oder Aluminium beruhigten Stählen im Strang
CH581513A5 (ru) * 1975-05-27 1976-11-15 Fischer Ag Georg
DE2643009A1 (de) * 1976-09-24 1978-03-30 Odermath Gmbh Heinrich Einlegekoerper zum schutz der aufprallflaeche eines giesstrahls in einem metallurgischen gefaess
US5169591A (en) * 1992-02-07 1992-12-08 Bethlehem Steel Corporation Impact pad for a continuous caster tundish
US5358551A (en) * 1993-11-16 1994-10-25 Ccpi, Inc. Turbulence inhibiting tundish and impact pad and method of using
EP0790873B1 (en) * 1994-11-09 1998-06-03 Foseco International Limited Tundish impact pad
GB9607556D0 (en) * 1996-04-11 1996-06-12 Foseco Int Tundish impact pad
DE19726540C2 (de) * 1997-06-23 2002-11-28 Gft Ges Fuer Feuerfest Technik Pralltopf
GB9816458D0 (en) * 1998-07-29 1998-09-23 Foseco Int Tundish impact pad
ES1048253Y (es) * 2001-02-14 2002-05-01 Refractaria S A Bloque de impacto para colada continua.
DE10143396C1 (de) * 2001-09-04 2002-11-28 Rhi Ag Wien Pralltopf

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102917817A (zh) * 2010-07-19 2013-02-06 里弗雷克特里知识产权两合公司 耐火的陶瓷吸震器
CN102917817B (zh) * 2010-07-19 2015-07-22 里弗雷克特里知识产权两合公司 耐火的陶瓷吸震器
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
US9643248B2 (en) 2014-03-28 2017-05-09 Arcelormittal Investigacion Y Desarrollo, S.L. Impact pad, tundish and apparatus including the impact pad, and method of using same
WO2016025948A1 (en) * 2014-08-15 2016-02-18 Arcelormittal Investigacion Y Desarrollo, S.L. Impact pad, tundish and apparatus including the impact pad, and method of using same
KR20170072871A (ko) * 2014-08-15 2017-06-27 아르셀로미탈 인베스티가시온 와이 데사롤로 에스엘 충격 패드, 충격 패드를 포함하는 턴디쉬 및 장치, 및 그 이용방법

Also Published As

Publication number Publication date
WO2004052574A1 (de) 2004-06-24
ES2285209T3 (es) 2007-11-16
BR0316330B1 (pt) 2012-10-02
AU2003283259A1 (en) 2004-06-30
RU2351432C2 (ru) 2009-04-10
DE50306871D1 (de) 2007-05-03
RU2005116226A (ru) 2006-02-10
BR0316330A (pt) 2005-09-27
ATE357303T1 (de) 2007-04-15
EP1567297A1 (de) 2005-08-31
DE10257395A1 (de) 2004-06-24

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