EP0325646B1 - Verschlusskörper für einen schiebeverschluss an einem metallschmelze enthaltenden gefäss sowie schiebeverschluss mit einem derartigen verschlusskörper - Google Patents

Verschlusskörper für einen schiebeverschluss an einem metallschmelze enthaltenden gefäss sowie schiebeverschluss mit einem derartigen verschlusskörper Download PDF

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Publication number
EP0325646B1
EP0325646B1 EP88907280A EP88907280A EP0325646B1 EP 0325646 B1 EP0325646 B1 EP 0325646B1 EP 88907280 A EP88907280 A EP 88907280A EP 88907280 A EP88907280 A EP 88907280A EP 0325646 B1 EP0325646 B1 EP 0325646B1
Authority
EP
European Patent Office
Prior art keywords
valve body
closure body
closure
openings
support frame
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
EP88907280A
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German (de)
English (en)
French (fr)
Other versions
EP0325646A1 (de
Inventor
José GIMPERA
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.)
Didier Werke AG
Original Assignee
Didier Werke AG
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 Didier Werke AG filed Critical Didier Werke AG
Priority to AT88907280T priority Critical patent/ATE67107T1/de
Publication of EP0325646A1 publication Critical patent/EP0325646A1/de
Application granted granted Critical
Publication of EP0325646B1 publication Critical patent/EP0325646B1/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
    • B22D41/14—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

Definitions

  • the invention relates to a closure body for a sliding closure on a vessel containing molten metal, which has at least one flow channel and can be used interchangeably in a fixed or adjustable support frame.
  • Closure bodies of so-called linear slides are usually plate-shaped and each have a flow channel, with the flow channel in the open position of the slide plate being aligned with the flow channel of a base plate fixedly arranged on the bottom of the vessel (DE-OS 2102059). Since when moving the slide plate in a control and / or closed position, the upper inlet edge of the flow channel wears out relatively quickly due to the thermal, erosive and corrosive action of the molten metal jet and therefore the entire slide plate must be replaced after only a few spouts, it has already been proposed that Slide plate closed on two sides use, i.e.
  • closure body is penetrated by at least two separate flow channels for the molten metal, the openings of which lie in different, flat surfaces of the closure body.
  • the flow channels do not run parallel, as in the prior art, and therefore do not open into the same surfaces of the closure body, but they are at an angle to each other and their openings on two opposite surfaces of the closure body, at least one of which forms a working surface of the closure body .
  • the closure body according to the invention can perform both the functions of a conventional slide plate and those of a conventional base plate, it is primarily intended to be used in the slide of a slide closure, since, as already mentioned, the wear of slide plates is significantly greater than that of base plates, so that the advantages according to the invention are stronger when the closure body is used in the slide than with a fixed arrangement in the base region of the vessel containing the molten metal.
  • the closure body After wear of the at least one work surface and the associated flow channel in its edge area, the closure body, in particular when used in the slide of a sliding lock, can be rotated or turned so that a new flow channel with its own undamaged work surface is used.
  • the flow channel opens with its openings on both sides into a working surface of the closure body, so that each flow channel can be used in two directions. It is also possible to give the flow channels different dimensions, so that, depending on the desired casting conditions, a narrower or wider flow channel can be selected, which is also assigned its own work surface.
  • a closure body according to the invention can thus have at least twice as many flow channels with their own work surface or work surfaces as a conventional closure plate with essentially the same length and width dimensions. Accordingly, the service life of such a closure body can be multiplied without significantly increasing its dimensions.
  • the two openings of a flow channel are preferably located in mutually parallel surfaces, in particular work surfaces, so that one slide channel arrangement can be replaced by another by simply changing the position of the slide body without changing the design of the slide valve.
  • the closure body has a prismatic, for example cuboid, or cylindrical shape. If the closure body is cuboid, it can have, for example, three flow channels, if it is hexagonal in cross section, it can have, for example, four flow channels, each of which opens into its own working or surface.
  • a flow channel is rotationally and / or mirror-symmetrical to another flow channel.
  • the flow channels are then arranged symmetrically in the closure body in such a way that one flow channel comes to lie in its support frame in place of the other flow channel simply by turning and / or rotating the closure body. This ensures that no other changes to the slide closure mechanism with regard to the position and / or the arrangement and / or the slide drive have to be made, since each time a new flow channel with its own undamaged work surface exactly in place of the previously used worn flow channel with its worn work surface serves.
  • the invention also proposes that the surfaces receiving the openings of the flow channels be rectangular, possibly rounded or beveled at their ends, and that the end faces be square, hexagonal or round in shape.
  • the (elongated) essentially rectangular design of a work surface has the purpose of providing a closing surface area of the required length by eccentrically arranging the flow channel to be provided without the need for an excessive plate size.
  • the square, hexagonal or round shape of the end faces, into which no flow channel opens, on the other hand ensure that the closure body is as compact as possible.
  • the surfaces receiving the openings of the flow channels have the same size and shape. In this way it can be achieved that no change in the support frame when turning and / or rotating the closure body is required if a new flow channel is to be brought into the functional position.
  • the axes of the flow channels are preferably perpendicular to one another, as are the associated working or surfaces of the two or three flow channels. If the closure body has a hexagonal cross section, the flow channels are preferably at an angle of 60 ° to one another in order to distribute the stress on the closure body as evenly as possible.
  • a favorable utilization of the geometric conditions of the closure body can be achieved if the respective flow channel is located in the closing surface area assigned to the other flow channel.
  • the closure body consists, for example, of monolithic ceramic material, it can also be ruled out that the functionality of the other flow channel is impaired by the formation of cracks in the vicinity of the flow channel already used.
  • the flow channels cross each other and the unused channel sections are closed with blind plugs, for example made of high-quality refractory material such as oxide.
  • blind plugs for example made of high-quality refractory material such as oxide.
  • metal reinforcements can be connected to it with rotating and / or pivoting bearing elements, e.g. also be embedded in it.
  • the primary consideration is to design the closure body as a monolithic block made of ceramic material.
  • closure body is designed as a metal cage with plate and / or sleeve-shaped attachments or inserts.
  • the cage then has corresponding recesses for the optional use of such plate and / or sleeve-shaped attachments or inserts, which can take over the functions of a slide plate.
  • closure body can also be accommodated in a metal frame from the outset, so that the closure body is replaced together with this frame.
  • the closure body according to the invention can thus be pressed and fired in a conventional manner from a ceramic refractory material, but can also be cast and / or pressed from refractory refractory concrete. Since the flow channels should all be of essentially the same length, the closure body, if it is, for example, cuboid, is as wide as it is high. The length of the flow channels in a closure body can therefore expediently be so large that an interchangeable spout, as is required on the underside of conventional slide plates, is unnecessary. In such a case, the closure body according to the invention is, for example, approximately twice as thick or high as a conventional slide plate.
  • Closure bodies according to the invention can be used both with linear and with rotary or pivoting slides.
  • the closure body can also be partially permeable in order to allow gas flushing through the plate body to prevent freezing or build-up and to seal against the outside atmosphere.
  • the invention further relates to a sliding closure for a vessel containing molten metal with a closure body, as has been explained in more detail above.
  • This is characterized in particular by the fact that the closure body is both longitudinally displaceable and rotatably mounted. In this way, the various flow channels can be easily brought into their respective working positions.
  • the sliding closure can be opened and closed in an advantageous manner, for example by pushing it back and forth, and the pouring jet can be regulated by pushing it back and forth in the other direction.
  • the service life of the respective closure body is increased still further because different wear edges of the flow channels are then exposed to the molten metal jet during the regulating and / or closing process.
  • the closure body can advantageously have front and / or longitudinal cutouts for the engagement of pins of the support frame or the Have closure body end and / or longitudinal pin for engagement in recesses of the support frame so as to simplify the rotational mounting of the closure body. It may be necessary to adjust the actuation stroke for the slide after the rotation of the closure body to the new conditions.
  • the closure body can also be pressed against the working surface of a base plate with at least one working surface by means of support springs.
  • the base plate can also be held in a swiveling frame.
  • the closure body 1 of Figure 1 is a refractory ceramic monolithic block, which is to take over the functions of a conventional closure plate, in particular a slide plate, in a slide closure on a vessel containing molten metal.
  • the parallelepiped-shaped closure body 1 has two mutually opposite parallel surfaces 9 and 10, which can both be working surfaces of the closure body 1, and two mutually perpendicular, also mutually parallel surfaces 11 and 12, which can also be working surfaces of the closure body 1.
  • the surfaces 9 to 12 all have the same size and shape.
  • the closure body 1 thus has the same height h as width b.
  • the side surfaces 13 and 14 provided on the ends of the narrow sides of the two pairs of surfaces 9, 10 and 11, 12 are square.
  • the closure body 1 is penetrated by two spaced-apart flow channels 2 and 3.
  • the axes of the flow channels 2, 3 are each perpendicular to the longitudinal axis of the closure body 1, but also perpendicular to each other.
  • the openings 5, 6 and 7, 8 open into the surface 9, 10 and 11, 12.
  • the flow channels 2, 3 are rotationally and mirror-symmetrically in the closure body 1 arranged that, for example, by rotating the closure body 1 about its longitudinal axis by 90 ° and turning the closure body 1 about its vertical central axis by 180 ° in the slide closure, the flow channel 3 takes the place of the flow channel 2.
  • this rotationally or mirror-symmetrically arranged arrangement of the flow channels 2, 3 they can also be seen in the part of the closure body material which is delimited by the closing surface areas assigned to the respective other flow channel 3, 2.
  • such a wear body 1 is inserted in a support frame 4, which in the case shown consists of an inner tenter part and an outer support part.
  • the latter has a recess into which the structural unit of wear body 1 and clamping frame part can be inserted, for example with support against support springs (not shown).
  • the support frame part also has an engagement opening 19 for a slide drive 27.
  • the flow channels 2 and 3 can be lined with sleeve-shaped, wear-resistant ceramic inserts 16.
  • Such a lining is made of relatively high quality material always useful when the remaining part of the closure body 1 is made of a lower quality material, for example a refractory refractory concrete.
  • the closure body 1 of the sliding closure shown in Figures 3 and 4 takes over the functions of a slide plate.
  • the closure body 1 as can be seen from the sectional view in FIG. 4, is not purely cuboid, but bevelled on its longitudinal edges.
  • the closure body 1 has in its front side surfaces 13 and 14 a recess 17, in which pins 18 are received for rotatable mounting in bearing pieces of the support frame 4.
  • the slide drive 27 which engages with an actuating rod 28 in the engagement opening 19 of the support frame 4
  • the unit comprising the support frame 4 and the closure body 1 can be displaced linearly relative to the base plate 24 on rails 29.
  • the stroke for the possibility of displacement is such that both the flow channel 2 and - after rotation of the closure body 1 about its longitudinal axis - the flow channel 3 can be moved into the working position under the flow opening 30 of the base plate 24. This eliminates the need for a second rotation of the closure body 1.
  • the slider 29 is part of a housing 20 which is pivotally mounted about an axis 31 on a floor-mounted holder 32 of the vessel containing molten metal.
  • the closure body 1 After pivoting the housing 20 with the support frame 4 and the closure body 1, the closure body 1 can be removed from the support frame 4. On the other hand, the base plate 24 is then also accessible for easy replacement.
  • a closure body 1 in the embodiment of a closure body 1 according to the invention shown in FIG. 5, it consists of an essentially cylindrical cage 21.
  • the cage 21 has in its jacket a number of cutouts 33, in the illustrated case 4 in number, into which plate-shaped attachments 15 with a flow channel 2 can be used with an opening 5 and a surface 9 serving as a working surface.
  • the cage 21 carries pins 18 for the rotatable reception in bearing parts 25, which in turn are supported on the supporting frame 4 via support springs 22, as can be seen in FIGS. 6 and 7.
  • FIG. 6 also shows how the plate-shaped attachment 15 made of refractory material can be combined with a sleeve-shaped insert 16, which leads to an opening 6 in the recess 33 opposite the plate-shaped attachment 15.
  • the plate-shaped attachment 15 and the sleeve-shaped insert 16 can also be formed in one piece. As can be seen from FIG. 6, a similar combination of perpendicular to each other is created in this way Flow channels 2 and 3 we in the embodiment of Figure 3 with a monolithic ceramic closure body 1.
  • the embodiment according to Figures 6 and 7 has the advantage that the cage 21 can be reused many times and only the plate-shaped attachments 15 and the sleeve-shaped inserts 16 are replaced when worn Need to become.
  • FIG. 7 also shows the tensioning screws 33, with which the housing 20 of the slide, which can be swiveled about the axis 31 from the holder 32, is fastened to the end of the vessel containing the molten metal at the end opposite the axis 31 under load of the support springs 22.
  • the possible stroke of the slide formed from the support frame 4 and the closure body 1 is dimensioned such that both the flow channel 2 and the flow channel 3 can be moved into the working position, with the required displacement possibility over the closing surface area of the plate-shaped attachment 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
EP88907280A 1987-08-07 1988-07-16 Verschlusskörper für einen schiebeverschluss an einem metallschmelze enthaltenden gefäss sowie schiebeverschluss mit einem derartigen verschlusskörper Expired - Lifetime EP0325646B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88907280T ATE67107T1 (de) 1987-08-07 1988-07-16 Verschlusskoerper fuer einen schiebeverschluss an einem metallschmelze enthaltenden gefaess sowie schiebeverschluss mit einem derartigen verschlusskoerper.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873726312 DE3726312A1 (de) 1987-08-07 1987-08-07 Verschlusskoerper fuer einen schiebeverschluss an einem metallschmelze enthaltenden gefaess sowie schiebeverschluss mit einem derartigen verschlusskoerper
DE3726312 1987-08-07

Publications (2)

Publication Number Publication Date
EP0325646A1 EP0325646A1 (de) 1989-08-02
EP0325646B1 true EP0325646B1 (de) 1991-09-11

Family

ID=6333292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88907280A Expired - Lifetime EP0325646B1 (de) 1987-08-07 1988-07-16 Verschlusskörper für einen schiebeverschluss an einem metallschmelze enthaltenden gefäss sowie schiebeverschluss mit einem derartigen verschlusskörper

Country Status (5)

Country Link
US (1) US4991754A (enrdf_load_stackoverflow)
EP (1) EP0325646B1 (enrdf_load_stackoverflow)
AT (1) ATE67107T1 (enrdf_load_stackoverflow)
DE (2) DE3726312A1 (enrdf_load_stackoverflow)
WO (1) WO1989001373A1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3726312A1 (de) * 1987-08-07 1989-02-16 Didier Werke Ag Verschlusskoerper fuer einen schiebeverschluss an einem metallschmelze enthaltenden gefaess sowie schiebeverschluss mit einem derartigen verschlusskoerper
US5762256A (en) * 1995-08-28 1998-06-09 United States Surgical Corporation Surgical stapler
AU2002344809A1 (en) 2001-06-20 2003-01-08 Inhale Therapeutic Systems, Inc. Flow regulator for aerosol drug delivery device and methods

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US134374A (en) * 1872-12-31 Himan frank
DE2102056C3 (de) * 1971-01-16 1975-10-23 Heinz Fritz Dipl.-Ing. 7570 Baden-Baden Reichenkron Anordnung einer fahrzeuggebundenen Wasch- und Desinfektionsanlage für Abfallbehälter
GB1380121A (en) * 1972-04-08 1975-01-08 Dyson Ltd J J Containers for molten metal
JPS5141974B2 (enrdf_load_stackoverflow) * 1973-02-12 1976-11-12
JPS5477237A (en) * 1977-11-28 1979-06-20 Shinagawa Refractories Co Fannshaped multiihole slideespray brick and sliding nozzle apparatus
JPS5533823A (en) * 1978-08-29 1980-03-10 Kurosaki Refract Co Ltd Plate in sliding nozzle device
DE2840171C3 (de) * 1978-09-15 1981-06-04 Stahlwerke Röchling-Burbach GmbH, 6620 Völklingen Verschlußvorrichtung für den Bodenausguß von Gießpfannen
CA1251642A (en) * 1983-11-02 1989-03-28 Kazumi Arakawa Molten metal discharging device
DE3345539C1 (de) * 1983-12-16 1985-07-18 Didier-Werke Ag, 6200 Wiesbaden Feuerfeste Verschlußplatte für Schieberverschlüsse
US4801055A (en) * 1983-12-16 1989-01-31 Didier-Werke Ag Method of repairing or renewing a worn refractory plate of a sliding closure unit
DE3512796C1 (de) * 1985-04-10 1986-02-06 Stopinc Ag, Baar Schiebereinheit in einem Schiebeverschluss
JPS6138774A (ja) * 1985-06-13 1986-02-24 Kurosaki Refract Co Ltd スライデイングノズル装置におけるプレ−ト使用法
DE3726312A1 (de) * 1987-08-07 1989-02-16 Didier Werke Ag Verschlusskoerper fuer einen schiebeverschluss an einem metallschmelze enthaltenden gefaess sowie schiebeverschluss mit einem derartigen verschlusskoerper

Also Published As

Publication number Publication date
DE3864810D1 (de) 1991-10-17
US4991754A (en) 1991-02-12
WO1989001373A1 (en) 1989-02-23
DE3726312A1 (de) 1989-02-16
DE3726312C2 (enrdf_load_stackoverflow) 1989-11-02
EP0325646A1 (de) 1989-08-02
ATE67107T1 (de) 1991-09-15

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