DK142692B - Closing plate mechanism for controlling the flow of liquid metal through a molding opening in a container. - Google Patents
Closing plate mechanism for controlling the flow of liquid metal through a molding opening in a container. Download PDFInfo
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- DK142692B DK142692B DK281672AA DK281672A DK142692B DK 142692 B DK142692 B DK 142692B DK 281672A A DK281672A A DK 281672AA DK 281672 A DK281672 A DK 281672A DK 142692 B DK142692 B DK 142692B
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- plate
- refractory
- container
- pressure
- closure plate
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Classifications
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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
- B22D41/40—Means for pressing the plates together
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
- Furnace Charging Or Discharging (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Description
(11) FREMLÆGGELSESSKRIFT 142692 (j|n DANMARK <»<)1m.CI.3 B 22 D 41/08 (21) Ansøgning nr. 2816/72 (22) Indleveret den 6. jun. 1972 f, (24) Løbedag g. jun. 1972 (44) Ansøgningen fremlagt og fremlæggelsesskriftet offentliggjort den 22 . dec . 198Ο(11) PUBLICATION 142692 (j | n DENMARK <»<) 1m.CI.3 B 22 D 41/08 (21) Application No 2816/72 (22) Filed on 6 Jun. 1972 f, (24) Race day vs. Jun. 1972 (44) The application presented and the petition published on 22. dec. 198Ο
DIREKTORATET FORDIRECTORATE OF
PATENT-OG VAREMÆRKEVÆSENET <3°) Prioritet begæret fra denPATENT AND TRADE MARKET <3 °) Priority requested from it
7. jun. 197U 150585, OSJun 7 197U 150585, OS
On USS ENGINEERS AND CONSULTANTS INC., 600 Grant Street, Pittsburgh, Penn= sylvanla, US.On USS ENGINEERS AND CONSULTANTS INC., 600 Grant Street, Pittsburgh, Penn = sylvanla, US.
(72) Opfinder: Earl Page Shapland, 5108 1/2 South First Street Road, Chara= paign, Illinois, US: James Thomas Shapland, 115 Penhurst Drive, Pitts= burgh, Pennsylvania, US.(72) Inventor: Earl Page Shapland, 5108 1/2 South First Street Road, Chara = paign, Illinois, US: James Thomas Shapland, 115 Penhurst Drive, Pitts = burgh, Pennsylvania, US.
(74) Fuldmægtig under sagens behandling:(74) Plenipotentiary in the proceedings:
Ingeniørfirmaet Budde, Schou & Co.The engineering company Budde, Schou & Co.
(64) Lukkeplademekanistne til styring af udstrømningen af flydende metal gennem en udstøbningsåbning i en beholder.(64) The closure plate mechanisms for controlling the flow of liquid metal through a mold opening in a container.
Den foreliggende opfindelse angår en lukkeplademekanisme til styring af udstrømningen af flydende metal gennem en udstøbningsåbning i en beholder, og som har en ildfast lukkeplade, der er indrettet til ved hjælp af en frem- og tilbagebevægelig stempelstang at kunne forskydes langs en stationær overplade omkring beholderens udstøbningsåbning mellem funktionsstillinger, i hvilke henholdsvis en åbning i lukkepladen tillader gennemstrømning af flydende metal, eller en massiv del af lukkepladen standser gennemstrømningen af flydende metal, og en hovedramme, der er befæstet til beholderen og un- 2 142592 derstøtter lukkepladen og har fjederorganer med tryksko, der er anbragt i en holder nedenunder lukkepladen, og som nedefra eftergiveligt trykker lukkepladen i kontakt med overpladen omkring beholderens udstøbningsåbning.The present invention relates to a closure plate mechanism for controlling the flow of liquid metal through a pouring opening in a container and having a refractory closure plate which is capable of being displaced along a stationary surface around the pouring opening of the container by means of a reciprocating piston rod. between operating positions in which, respectively, an opening in the closure plate permits flow of liquid metal, or a massive portion of the closure plate stops the flow of liquid metal, and a main frame which is attached to the container and supports the closure plate and has spring means with compression shoes, which is arranged in a holder below the closure plate, and which, from below, resiliently presses the closure plate into contact with the top plate around the container's pouring opening.
Kendte mekanismer af denne art er f.eks. omhandlet i USA--patentskrifterne nr. 311.902 og nr. 3.352.465 samt i fransk patentskrift nr. 1.599.949. Ved de heri omhandlede konstruktioner er lukkepladerne understøttet i de langsgående, dvs. med bevægelsesretningen parallelle, kantområder. En sådan understøtning medfører som følge af konstruktionselementernes og lukkepladens elasticitet et uensartet fordelt tætningstryk over tætningsarealet og dermed en uensartet nedslidning af de arbejdende anlægsflader indenfor dette område, hvilket igen fører til lækageproblemer og bevirker, at brugslevetiden for de ildfaste anlægsflader, herunder lukkepladen, formindskes.Known mechanisms of this kind are e.g. disclosed in United States Patent Nos. 311,902 and 3,352,465 and French Patent No. 1,599,949. In the constructions referred to herein, the closure plates are supported in the longitudinal, ie. with direction of movement parallel, edge areas. Such support, due to the elasticity of the structural elements and the closure plate, results in a uniformly distributed sealing pressure over the sealing area and thus a uniform wear of the working contact surfaces within this area, which in turn leads to leakage problems and causes the service life of the refractory contact surfaces, including the
Formålet for den foreliggende opfindelse er at tilvejebringe en lukkeplademekanisme af den indledningsvis anførte art, hvor disse ulemper i vid udstrækning er undgået, idet tætningstrykket er mere ensartet fordelt over tætningsarealet, således at den uensartede nedslidning af de ildfaste anlægsflader og de deraf følgende lækageproblemer undgås, og brugslevetiden forøges.The object of the present invention is to provide a closure plate mechanism of the type initially mentioned, in which these disadvantages are largely avoided, the sealing pressure being more uniformly distributed over the sealing area, so that the uniform wear of the refractory surfaces and the consequent leakage problems, and service life is increased.
Dette opnås ifølge opfindelsen ved, at fjederorganerne er anbragt ved positioner, som er i hovedsagen ensartet fordelt i en ring omkring beholderens udstøbningsåbning og beliggende indenfor såvel den stationære overplades som lukkepladens omkreds.This is achieved according to the invention in that the spring means are arranged at positions which are substantially uniformly distributed in a ring around the container opening opening and located within both the stationary top plate and the closure plate circumference.
Fordi der er et antal fjederbelastede tryksko omkring omkredsen af den stationære udstøbningsåbning mellem denne og overpladens kant frembringer de konstant en ringformet belastningszone, som fordeler tætningstrykket ensartet på de ildfaste overflader og bøjer den bevægelige lukkeplade, så den tilpasser sig den stationære overplades overflade.Because there are a plurality of spring-loaded pressure shoes around the perimeter of the stationary molding opening between this and the edge of the surface, they constantly produce an annular load zone which distributes the sealing pressure uniformly on the refractory surfaces and bends the movable closure plate to conform to the surface of the stationary surface.
Opfindelsen skal i det følgende beskrives nærmere ud fra udførelsesformer, idet der henvises til tegningen, på hvilken fig. 1 viser et perspektivbillede af en beholder til bund-udstøbning, som er ændret til at anvende en lukkemekanisme eller udtømningsventil med forskydelig kanal til udstøbning af flydende stål i en blokform, fig. 2 et længdesnit gennem den i fig. 1 viste udtømningsventil i lukket stilling, 3 U2692 fig. 3 det samme som fig. 2, men med ventilen i åben stilling eller støbestilling, fig. 4 et til dels adskilt perspektivbillede af den i fig. 1 viste ventil set nedefra og med ventilen åbnet for udskiftning af de ildfaste dele, fig. 5 et vandret tværsnit langs linien VII-VII i fig. 2, og især visende stilling og orientering af de eftergivelige organer, som anvendes for at sammenpasse de respektive ildfaste plader, og derved bevirker tætningen, fig. 6 et tværsnit gennem en indretning af kendt art, hvor en ildfast plade befæstes til en anden, med hvilken det ikke er muligt at opnå en ensartet tætningsvirkning mellem de ildfaste flader, fig. 7 en indretning som i fig. 6, men hvor tætning mellem de ildfaste flader er opnået ved anvendelse af eftergivelige organer ifølge den foreliggende opfindelse, som tilvejebringer en mellemflade med eftergiveligt tryk mellem de ildfaste flader, fig. 8 et tværsnit svarende til de i fig. 6 og 7 viste, hvoraf det ses, at forurening eller størknede dele ikke vil sætte udtømningsventilen ifølge den foreliggende opfindelse ud af drift, fig. 9 et tværsnit gennem midten af en af trykskoene, som viser denne i den normale arbejdsstilling, og fig. 10 som fig. 9 en tryksko i dens forbelastede stilling, idet grænserne for dens vandring er vist.BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in more detail from embodiments, with reference to the drawing, in which: FIG. 1 is a perspective view of a bottom casting container modified to use a sliding channel or discharge valve with sliding channel for casting liquid steel in a block form; FIG. 2 is a longitudinal section through the embodiment of FIG. 1 in the closed position, 3 U2692 fig. 3 the same as FIG. 2, but with the valve in the open position or casting position, fig. 4 is a partially separated perspective view of the embodiment of FIG. 1 from below and with the valve opened for replacement of the refractory parts; FIG. 5 shows a horizontal cross-section along the line VII-VII in FIG. 2, and in particular showing the position and orientation of the resilient means used to match the respective refractory plates, thereby effecting the seal; FIG. 6 is a cross-section through a device of the prior art in which one refractory plate is attached to another, with which it is not possible to achieve a uniform sealing effect between the refractory surfaces; FIG. 7 shows a device as in FIG. 6, but where sealing between the refractory surfaces is achieved by using resilient means according to the present invention which provides an intermediate surface with resilient pressure between the refractory surfaces; 8 is a cross-section similar to that of FIG. 6 and 7, from which it is seen that contamination or solidified parts will not disable the discharge valve of the present invention; 9 is a cross-section through the middle of one of the printing shoes showing it in the normal working position; and FIG. 10 as FIG. 9 shows a pressure shoe in its preloaded position, showing the limits of its migration.
I grove træk er udseendet af og omgivelserne for lukkemekanismen ifølge den foreliggende opfindelse vist i perspektiv i fig. 1. Det ses, at en beholder V, i dette tilfælde vist som en støbeske til bundudstøbning, med en ydre metalkappe, har en grundplade 66 befæstet til bunden, til hvilken grundplade en kanalventil 5 er befæstet. Kanalventilen består i almindelighed af en hovedramme 13. Ragende frem fra den nedre del af kanalventilen 5 findes et ildfast udstøbningsmundstykke 22, som leder det flydende metal M til blokformen I.In general, the appearance and environment of the closure mechanism of the present invention is shown in perspective in FIG. 1. It will be seen that a container V, in this case shown as a bottom spout casting box, with an outer metal sheath, has a base plate 66 attached to the base to which base plate a duct valve 5 is attached. The duct valve generally consists of a main frame 13. Projecting from the lower part of duct valve 5 is a refractory casting nozzle 22 which directs the liquid metal M to the block mold I.
Kanalventilen 5 aktiveres ved hjælp af en hydraulisk cylinder 16, der styres af styrekontakten 60. Styrekontakten 60 aktiverer på sin side de hydrauliske ledninger 62, der leverer hydraulisk trykfluidum til cylinderen 16, som, gennem en ikke vist stempelstang inden i stempelstangskærmen 64 driver de bevægelige elementer i kanalventilen 5. Luftslangen 61 er tilvejebragt for kontinuer- 142692 4 ligt at føre luft gennem ikke alene den hydrauliske cylinder 16 for køling af denne, men også gennem den indre del af kanalventilen 5.The duct valve 5 is actuated by a hydraulic cylinder 16 which is controlled by the control switch 60. The control switch 60 in turn activates the hydraulic lines 62 supplying hydraulic pressure fluid to the cylinder 16 which, through a piston rod not shown within the piston rod shield 64, drive the movable elements in the duct valve 5. The air hose 61 is provided for continuously passing air through not only the hydraulic cylinder 16 for cooling it, but also through the inner portion of the duct valve 5.
Hele den konstruktionsdel, som omfatter den hydrauliske cylinder 16, luftslangen 61, de hydrauliske ledninger 62 og styringskontakten 60, kan fjernes ved drejning af konstruktionsdelen. For at opnå dette har stempelstangskærmen 64 for enden organer, der samvirker med en kobling 63 på kanalventilen 5 på en sådan måde, at drivelementet kan fjernes derfra. Denne lette borttagning er af betydning for udskiftning af de indvendige ildfaste dele i kanalventilen 5, idet denne svinges til åben stilling, da det er ønskeligt, at drivelementet ikke er i vejen. Ligeledes kan cylinderen fjernes under fyldning af beholderen V med dens smeltede charge for at forhindre beskadigelse forårsaget af spildt metal.The entire structural member comprising the hydraulic cylinder 16, the air hose 61, the hydraulic lines 62 and the control contact 60 can be removed by turning the structural member. To achieve this, the piston rod shield 64 at the end has means which cooperate with a coupling 63 on the duct valve 5 in such a way that the drive element can be removed therefrom. This easy removal is important for replacing the internal refractory parts in the duct valve 5 as it is pivoted to the open position as it is desirable that the drive element is not in the way. Likewise, the cylinder can be removed while filling the container V with its molten charge to prevent damage caused by spilled metal.
Af fig. 2 fremgår, at beholderen V har en ydre metalkappe 1 og et ildfast for 2. Som nævnt foran er denne beholder en bundud-støbningsbeholder, men det vil fremgå helt klart af den følgende beskrivelse, at kanalventilen 5 også let kan monteres til udstøb-ning gennem siden. En todelt brøndblok 3 er tilvejebragt i den midterste del af den ildfaste foring 2 og har i midten et arbejdsmundstykke 4, der forløber gennem bunddelen af brøndblokken 3, den ildfaste foring 2 og beholderen V's metalkappe 1.In FIG. 2 shows that the container V has an outer metal sheath 1 and a refractory for 2. As mentioned above, this container is a bottom casting container, but it will be clear from the following description that the duct valve 5 can also be easily mounted for molding. through the page. A two-part well block 3 is provided in the middle portion of the refractory liner 2 and has in the middle a working nozzle 4 extending through the bottom portion of the well block 3, the refractory liner 2 and the metal sheath 1 of the container V.
Af fig. 4 ses at en overplade 9 passer inden i en reces i grundpladen 66. Dernæst er en forskydelig lukkeplade 12 anbragt inden i kanalventilen 5's hovedramme 13, og denne er lukket i driftstilstanden, som vist i fig. 2.In FIG. 4, it is seen that an upper plate 9 fits within a recess in the base plate 66. Next, a slidable closing plate 12 is arranged within the main frame 13 of the duct valve 5, and this is closed in the operating state, as shown in FIG. 2nd
Af fig. 2 ses yderligere, at den stationære overplade 9 indeholder en centralt placeret, ringformet fordybning, som er dimensioneret til at optage sikkerhedsmundstykket 6's ring 8. Et metalhylster 10 omgiver den stationære overplade 9 og er ombukket langs omkredsen for at fastholde pladen. Der er tilvejebragt en åbning i metalhylsteret 10 op mod ringen 8, således at der tilvejebringes en keramisk forbindelse. Det er ønskeligt at indlægge en stampemasse mellem metalhysteret og overpladen 9 for at udligne uregelmæssigheder. Overpladens ildfaste materiale er således indkapslet, at det i tilfælde af revnedannelse vil blive fastholdt på plads.In FIG. 2, it is further seen that the stationary top plate 9 contains a centrally located annular groove, dimensioned to receive the ring 8. The safety nozzle 6 is mounted. A metal casing 10 surrounds the stationary top plate 9 and is folded along the circumference to retain the plate. An aperture is provided in the metal casing 10 up against the ring 8 so as to provide a ceramic connection. It is desirable to insert a stamping mass between the metal hyster and the top plate 9 to compensate for irregularities. The refractory material of the surface is encapsulated so that in case of cracking it will be retained in place.
Den forskydelige kanalplade 12 er på lignende måde indkapslet i en metalskærm 70, som fortrinsvis er ombukket ved nedre ende 19 og den øvre omkreds 18. Både den stationære overplade 9 og den forsky- 142692 5 delige kanalplade 12 er således metalomgivede, Ildfaste materialer.The displaceable channel plate 12 is similarly encapsulated in a metal shield 70, which is preferably bent at lower end 19 and upper circumference 18. Both the stationary top plate 9 and the displaceable channel plate 12 are thus metal-surrounded refractory materials.
En slidbestandig overplade 20 af et materiale, som svarer til det, hvoraf den stationære overplade 9 er dannet, er tilvejebragt på den forskydelige ventil 12.A wear-resistant top plate 20 of a material similar to that of which the stationary top plate 9 is formed is provided on the displaceable valve 12.
Ifølge opfindelsen tilvejebringes en trykforbindelse mellem de to ildfaste overflader, der forskydes i forhold til hinanden i kanalventilen 5. Nærmere forklaret ses af fig, 4f af de ildfaste overflader, som er i forskydelig, tætnende kontakt med hinanden, og som er betegnet med henvisningsbogstavet R, findes på de modstående flader af den stationære overplade 9 og den forskydelige lukkeplade 12. Disse er de meget erosionsbestandige, ildfaste overflader, som er omtalt foran. For at opretholde trykforbindelsen mellem de to ildfaste overflader R er der i kanalventilen 5 tilvejebragt et antal tryksko 15. Disse tryksko ligger an mod den nedadvendende flade af hylsteret om den forskydelige lukkeplade 12 og, fordi der er et antal af sådanne tryksko 15 omkring omkredsen af den stationære udstøb-ningsåbning mellem denne og pladekanten, frembringer de konstant en ringformet belastningszone, som fordeler tætningstrykket ensartet på de ildfaste overflader R. Trykskoene 15, som ligger an neden under under-delen af den forskydelige lukkeplade 12 som vist i fig, 4 er anbragt i en holder 14, som omgiver den forskydelige lukkeplade 12, og som kan føres frem og tilbage inden i hovedrammen 13. Den ringformede belastningszone forløber omkring udstøbningsåbningen i den stationære overplade 9, som hviler mod grundpladen 66, og gom er indeholdt i den deri tilvejebragte reces, som det fremgår af fig. 4.According to the invention, a pressure connection is provided between the two refractory surfaces which are displaced relative to each other in the duct valve 5. More detailed explanation can be seen from Fig. 4f of the refractory surfaces which are in slidable, sealing contact with each other and which are designated by the reference letter R , are found on the opposite surfaces of the stationary top plate 9 and the displaceable closure plate 12. These are the highly erosion-resistant, refractory surfaces discussed above. To maintain the pressure connection between the two refractory surfaces R, a plurality of pressure shoes 15 are provided in the duct valve 5. These pressure shoes abut the downwardly facing surface of the sheath of the slidable closure plate 12 and, because there are a number of such pressure shoes 15 around the circumference of the the stationary molding opening between it and the plate edge, they constantly produce an annular load zone which distributes the sealing pressure uniformly on the refractory surfaces R. The pressure shoes 15 which lie below the bottom of the sliding closure plate 12 as shown in Fig. 4 are disposed in a holder 14 surrounding the displaceable closure plate 12 and which can be reciprocated within the main frame 13. The annular load zone extends around the molding aperture of the stationary top plate 9 which rests against the base plate 66 and gum is contained therein. provided recesses as shown in FIG. 4th
Opfindelsen kan anvendes over for en lukkemekanisme, som er baseret på gennemføringskanalplader, hvoraf hver anden er forsynet med en åbning og hver anden med en lukkedel. De enkelte plader fremføres i uafbrudt rækkefølge af den frem- og tilbagegående stempelstang, idet en ny plade anbringes foran den tilbagetrukne stempelstang, mens den forreste plade simpelt hen falder væk efter at være skudt frem af den efterfølgende plade. En sådan lukkemekanisme er også vist i USA patentskrift nr. 3.352.465. Når opfindelsen anvendes i forbindelse med denne art lukkemekanisme, har holderen en fikseret stilling i stedet for at blive bevæget frem og tilbage, og stempelstangen ligger an mod den ny plade. Kanalpladerne bevæges tværs gennem den fikserede holder.The invention can be applied to a closure mechanism based on feed duct plates, each of which is provided with an opening and each other with a closure member. The individual plates are fed in continuous order of the reciprocating piston rod, a new plate being placed in front of the retracted piston rod, while the front plate simply falls away after being pushed forward by the subsequent plate. Such a closing mechanism is also disclosed in U.S. Patent No. 3,352,465. When the invention is used in connection with this kind of closure mechanism, the holder has a fixed position rather than being moved back and forth and the piston rod abuts against the new plate. The channel plates are moved transversely through the fixed holder.
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Enhver af trykskoene 15 omfatter, som det mere udførligt er vist i fig. 9, en trykbolt 69 med et hoved 69a, der er forsynet med en konveks anlægsflade 68. En skruefjeder 53 er anbragt under hovedet 69a og omgiver trykbolten 69. Fjederen 53 er spændt ved hjælp af en låsekrave 72. Låsekraven 72 har en ring 76, som under friktion ligger an mod væggen af udboringen i den forskydelige lukkepladeholder 14, og som hviler mod en ansats i udboringen på en sådan måde, at den kan presse trykbolten 69 opad. En låsering 73 er fastgjort i en not i den nederste del af trykbolten 69 og begrænser, som vist i fig. 10, fjederens udvidelse ved anlæg mod kraven 72, således at hovedet 69a af trykskoen 15 kun kan rage et vist stykke op over holderen 141 s overflade 74. Ved normal brug begrænser kraven 72 og låseringen 73 den største højde af trykskoen 15's hoved 69a1s overflade til 12 mm over overfladen 74 på holderen 14, idet de opretholder en forbelastning på fjederen 53. Den normale arbejdsstilling er på den anden side ca. 6 mm over overfladen 74. Skruefjederen 53 er valgt således, at den, ved sammentrykningen under arbejdsbetingelserne, pålægger en forud fastlagt belastning på den forskydelige kanalplade 12. De bedste resultater opnås, når denne belastning er ca. 500 kg pr. tryksko 15, og beregnet således i forhold til overfladearealet af den ildfaste overflade R på den forskydelige kanalplade 12, at trykket på fladen mellem de to legemer er ca. 7 kg pr. cm .Each of the printing shoes 15 comprises, as more fully shown in FIG. 9, a pressure bolt 69 having a head 69a provided with a convex abutment surface 68. A coil spring 53 is placed under the head 69a and surrounds the pressure bolt 69. The spring 53 is clamped by a lock collar 72. The lock collar 72 has a ring 76, which, under friction, abuts against the wall of the bore in the displaceable closure plate holder 14, and which rests against an abutment in the bore in such a way that it can push the pressure bolt 69 upwards. A locking ring 73 is secured in a groove in the lower part of the pressure bolt 69 and, as shown in FIG. 10, the extension of the spring upon abutment against the collar 72, so that the head 69a of the pressure shoe 15 can only project a certain distance upwardly over the surface 74 of the holder 141. 12 mm above the surface 74 of the holder 14, maintaining a preload on the spring 53. On the other hand, the normal working position is approx. 6 mm above the surface 74. The coil spring 53 is selected such that, when compressed under the working conditions, it imposes a predetermined load on the displaceable duct plate 12. The best results are obtained when this load is approx. 500 kg per pressure shoe 15, and so calculated relative to the surface area of the refractory surface R of the sliding channel plate 12, that the pressure on the surface between the two bodies is approx. 7 kg per cm.
Af fig. 2 og 3 ses, at stempelstangen 17 aktiveres af den hydrauliske cylinder 16 og er direkte koblet til holderen 14, som indvendig har et antal forbundne luftkamre 75, og som understøtter trykskoene 15, der ligger an mod den underste flade af den forskydelige lukkeplade 12. I fig. 2 er stempelstangen 17 og det dermed forbundne stempel 54 i den hydrauliske cylinder 16 i den venstre stilling, og den bageste del af den forskydelige lukkeplade 12 lukker for åbningen i den stationære overplade 9.In FIG. 2 and 3, it is seen that the piston rod 17 is actuated by the hydraulic cylinder 16 and is directly coupled to the holder 14, which has a number of internally connected air chambers 75 and which supports the pressure shoes 15 which abut the lower surface of the displaceable closure plate 12. In FIG. 2, the piston rod 17 and the associated piston 54 in the hydraulic cylinder 16 are in the left position, and the rear portion of the displaceable closure plate 12 closes the opening in the stationary top plate 9.
Stillingen af den forskydelige lukkeplade 12 under støbning fremgår tydeligt af fig. 3. Det ses, at det hydrauliske stempel 54 er i en højre stilling, hvor stangen 17 har trukket den luftkølede holder 14--til en stilling, i hvilken alle udstøbningsmundstyk-keme aksialt ligger ud for hinanden. Under denne tilbagetrækning ligger trykskoene 15 konstant an mod den forskydelige lukkeplade 12 og omgiver dennes udstøbningsmundstykke langs omkredsen, således at de eftergiveligt presser den øvre overflade R af den forskydelige lukkeplade mod den indre flade R af den stationære overplade 9.The position of the sliding closure plate 12 during casting is clearly seen in FIG. 3. It can be seen that the hydraulic piston 54 is in a right position where the bar 17 has pulled the air-cooled holder 14 - to a position in which all the casting nozzles are axially adjacent to each other. During this retraction, the pressure shoes 15 constantly engage the displaceable closure plate 12 and surround its molding nozzle along the circumference so that they resiliently press the upper surface R of the displaceable closure plate against the inner surface R of the stationary top plate 9.
7 1426927 142692
Opfindelsens virkemåde vil forstås ved en sammenligning med den kendte teknik. Af fig. 6 ses, at konstruktioner ifølge den kendte teknik primært beror på kantunderstøtning 58 for at bringe de ildfaste overflader R af en stationær overplade 39 og en forskydelig lukkeplade 38 i berøring. Selv om eftergivelige understøtninger erstatter faste kantunderstøtninger 58, der er vist ved bolte, forbliver den væsentlige forbindelse mellem de ildfaste overflader den samme, nemlig en kantunderstøtning som vist ved punkterne 37. Ved at anbringe skruefjedre neden under underpladen 40 og omkring forlængede faste understøtninger 58 vil fjedrene på eftergivelig måde presse underpladen 40 mod de ildfaste elementer og et fast monteringselement 41, men der vil stadig være et mellemrum mellem de ildfaste overflader R (som vist overdrevent i fig. 6) på grund af understøtningen ved kanterne 37.The operation of the invention will be understood by comparison with the prior art. In FIG. 6 it is seen that prior art structures rely primarily on edge support 58 to contact the refractory surfaces R of a stationary top plate 39 and a slidable closure plate 38. Although resilient supports replace solid edge supports 58 shown by bolts, the essential connection between the refractory surfaces remains the same, namely, edge supports as shown at points 37. By applying coil springs below the bottom plate 40 and around extended fixed supports 58, the springs resiliently press the lower plate 40 against the refractory elements and a fixed mounting member 41, but there will still be a gap between the refractory surfaces R (as shown excessively in Figure 6) due to the support at the edges 37.
Den foreliggende opfindelse er rettet mod en tilpasning af de uregelmæssigheder i fluidtætningen, som forekommer mellem de ildfaste overflader R, der omgiver udstrømningsåbningerne som vist i fig. 7. Dette gøres ved at forhindre den faste eller stationære overplade 9 (se fig. 7) i at bevæge sig sammen med den forskydelige lukkeplade 12. De ildfaste mellemflader R bevæges således som vist i fig. 7 ind i og bort fra en stilling, som muliggør støbning eller lukning. Den primære forskel mellem den foreliggende opfindelse som vist i fig. 7 og den kendte teknik som vist i fig. 6 er et resultat af anbringelsen af et antal eftergivelige elementer eller tryksko 15, som på eftergivende måde presser de ildfaste overflader R mod hinanden. Yderligere skal det bemærkes, som det er angivet i fig. 7 og hvor som helst i fig. 1-5, at placeringen af de eftergivelige elementer eller tryksko er en sådan, at de omgiver udstrømningsåbningerne og befinder sig inden for omkredsen af den ydre kant af den faste, ildfaste overflade. Derved bøjes den bevægelige ildfaste overflade, således at den tilpasser sig til u-regelmæssighedeme i overfladen på det faste, ildfaste element.The present invention is directed to an adaptation of the fluid seal irregularities that occur between the refractory surfaces R surrounding the outflow openings as shown in FIG. 7. This is done by preventing the fixed or stationary top plate 9 (see Fig. 7) from moving together with the displaceable closure plate 12. The refractory intermediate surfaces R are moved as shown in fig. 7 into and away from a position which allows casting or closing. The primary difference between the present invention as shown in FIG. 7 and the prior art as shown in FIG. 6 is a result of the application of a plurality of resilient elements or pressure shoes 15 which resiliently press the refractory surfaces R against each other. Further, it should be noted, as indicated in FIG. 7 and anywhere in FIG. 1-5, that the location of the resilient elements or pressure shoes is such that they surround the outflow openings and are within the circumference of the outer edge of the solid, refractory surface. Thereby, the movable refractory surface bends to conform to the irregularities in the surface of the solid refractory element.
Kastninger af den faste eller stationære overplade 9 og den forskydelige ventil eller lukkeplade 12 bliver således i det i fig. 7 skematisk gengivne apparat ifølge den foreliggende opfindelse udlignet ved trykket fra trykskoene 15, medens den tilsvarende kastning af den stationære overplade 39 og den forskydelige lukkeplade 38 i fig. 6 ikke udlignes på en sådan måde, at der tilvejebringes en konstant forbindelse mellem de ildfaste flader R.Castings of the fixed or stationary top plate 9 and the displaceable valve or closure plate 12 are thus shown in the FIG. 7 is a schematic representation of the apparatus of the present invention offset by the pressure of the printing shoes 15, while the corresponding casting of the stationary top plate 39 and the displaceable closure plate 38 of FIG. 6 is not equalized in such a way as to provide a constant connection between the refractory surfaces R.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK200377A DK151779C (en) | 1971-06-07 | 1977-05-05 | CUTTING PLATE MECHANISM FOR CONTROL OF THE FLOW METAL EQUIPMENT THROUGH A EASTER OPENING IN A CONTAINER. |
DK199577A DK151778C (en) | 1971-06-07 | 1977-05-05 | MOVE CLOSING MECHANISM FOR THE EXPOSURE OPENING IN A FLOATING METAL EXPOSURE CONTAINER. |
DK505379A DK505379A (en) | 1971-06-07 | 1979-11-28 | CAREFULLY CLOSE TO CONTAINERS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15058571A | 1971-06-07 | 1971-06-07 | |
US15058571 | 1971-06-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
DK142692B true DK142692B (en) | 1980-12-22 |
DK142692C DK142692C (en) | 1981-09-21 |
Family
ID=22535181
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK281672AA DK142692B (en) | 1971-06-07 | 1972-06-06 | Closing plate mechanism for controlling the flow of liquid metal through a molding opening in a container. |
DK001574A DK153635C (en) | 1971-06-07 | 1974-01-02 | MOVE CLOSING MECHANISM FOR CONTROL OF LIQUID METAL EXPOSURE THROUGH AN OUTPUT OPENING IN A CONTAINER |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK001574A DK153635C (en) | 1971-06-07 | 1974-01-02 | MOVE CLOSING MECHANISM FOR CONTROL OF LIQUID METAL EXPOSURE THROUGH AN OUTPUT OPENING IN A CONTAINER |
Country Status (23)
Country | Link |
---|---|
JP (4) | JPS5143021B1 (en) |
AT (1) | AT324593B (en) |
AU (1) | AU468448B2 (en) |
BE (1) | BE784174A (en) |
BR (1) | BR7203614D0 (en) |
CA (1) | CA979647A (en) |
DE (1) | DE2227501C3 (en) |
DK (2) | DK142692B (en) |
ES (1) | ES403522A1 (en) |
FI (1) | FI54068C (en) |
FR (3) | FR2140422B1 (en) |
GB (1) | GB1399011A (en) |
HK (3) | HK24977A (en) |
IE (4) | IE36371L (en) |
IN (1) | IN140770B (en) |
IT (1) | IT959067B (en) |
NL (1) | NL166634C (en) |
NO (2) | NO138194C (en) |
PL (1) | PL89017B1 (en) |
RO (1) | RO61583A (en) |
SU (2) | SU535029A3 (en) |
YU (2) | YU41418B (en) |
ZA (1) | ZA723538B (en) |
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IN147574B (en) * | 1976-11-19 | 1980-04-19 | Uss Eng & Consult | |
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DE2736817C2 (en) * | 1977-08-16 | 1980-09-18 | Martin & Pagenstecher Gmbh, 5000 Koeln | Slide lock for a pouring vessel |
JPS5479719U (en) * | 1977-11-16 | 1979-06-06 | ||
JPS54120527U (en) * | 1978-02-10 | 1979-08-23 | ||
JPS5527495A (en) * | 1978-08-19 | 1980-02-27 | Stopinc Ag | Threeeply system sliding closing appliance |
IT1106745B (en) * | 1978-12-22 | 1985-11-18 | Sanac Spa | ELASTIC LOCKING DEVICE USING TORSION BARS OF A DRAWER UNLOADER |
JPS55106581U (en) * | 1979-01-22 | 1980-07-25 | ||
CH653933A5 (en) * | 1981-05-19 | 1986-01-31 | Stopinc Ag | SLIDING CLOSURE FOR MELTING CASES. |
JPS5880496U (en) * | 1981-11-25 | 1983-05-31 | 株式会社クボタ | underground drilling equipment |
US4556157A (en) * | 1982-05-24 | 1985-12-03 | Flo-Con Systems, Inc. | Pressure fluid teeming valve and method |
US4561573A (en) * | 1982-08-20 | 1985-12-31 | Flo-Con Systems, Inc. | Valve and replaceable collector nozzle |
DE3239948C1 (en) * | 1982-10-28 | 1983-08-25 | Martin & Pagenstecher GmbH, 5000 Köln | Device for operating a slide lock |
IT1179011B (en) * | 1983-09-28 | 1987-09-16 | Tarroga S A | CLOSING FOR HIGH TEMPERATURE LIQUID CASTING CHANNELS |
DE3425676C2 (en) * | 1984-06-19 | 1986-10-09 | Stopinc Ag, Baar | Device for changing a pouring pipe |
CH663368A5 (en) * | 1984-06-20 | 1987-12-15 | Stopinc Ag | SLIDING SEAL FOR THE SPOUT, IN PARTICULAR HORIZONTAL SPOUT, MILLED FROM METAL MELT. |
JPH0335481Y2 (en) * | 1984-09-11 | 1991-07-26 | ||
CH675976A5 (en) * | 1988-01-15 | 1990-11-30 | Stopinc Ag | |
US5139237A (en) * | 1988-01-15 | 1992-08-18 | Stopinc Ag | Metal member with annular centering surface |
US5052598A (en) * | 1989-03-03 | 1991-10-01 | Flo-Con Systems, Inc. | Sliding gate valve method and replaceable retractories |
US5259592A (en) * | 1990-03-16 | 1993-11-09 | Flo-Con Systems, Inc. | Leaf spring valve and method |
WO1992009390A1 (en) * | 1990-11-21 | 1992-06-11 | The Broken Hill Proprietary Company Limited | Continuous casting of molten metal |
JP2668286B2 (en) * | 1991-04-06 | 1997-10-27 | テクノメタル ゲゼルシヤフト フユール メタルテヒノロギー ミツト ベシユレンクテル ハフツング | Sliding closure device for molten metal containers |
US5983149A (en) * | 1991-04-08 | 1999-11-09 | Caterpillar Inc. | Automatic vehicle speed retarding control through actuation of wheel brakes |
CH683969A5 (en) * | 1991-07-12 | 1994-06-30 | Stopinc Ag | Fireproof closure plate on the spout of a vessel containing molten metal. |
BE1005987A3 (en) * | 1992-06-16 | 1994-04-12 | Int Ind Eng Sa | Control device of casting speed. |
JPH07284915A (en) * | 1994-04-12 | 1995-10-31 | Toshiba Ceramics Co Ltd | Slide gate plate |
GB9509013D0 (en) * | 1995-05-03 | 1995-06-21 | Flogates Ltd | Improved sliding gate valve |
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PL179953B1 (en) * | 1995-05-22 | 2000-11-30 | Zimmermann & Jansen Gmbh | Casting ladle pouring gate |
CN108772557A (en) * | 2018-08-24 | 2018-11-09 | 永兴特种不锈钢股份有限公司 | A kind of bottom water outlet of ladle, ventilating structure |
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DE547568C (en) | 1932-04-08 | Julius Grub Dipl Ing | Bottom closure for pouring pans | |
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US1400953A (en) * | 1920-11-10 | 1921-12-20 | Carl R Hennicke | Hood-fastener |
US1610342A (en) * | 1922-12-21 | 1926-12-14 | William A Gilchrist | Latch for furnace doors |
FR1155082A (en) * | 1955-08-12 | 1958-04-22 | Fonderia E Officina Meccanica | Casting device for casting ladles of molten metals, in particular steels and precious metals |
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AT292934B (en) | 1964-11-25 | 1971-09-10 | Benteler Geb Paderwerk | Bottom closure for steel ladles |
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FR1599949A (en) * | 1968-12-20 | 1970-07-20 | ||
CH527011A (en) * | 1969-07-25 | 1972-08-31 | Didier Werke Ag | Slide gate valve for containers with a pouring opening and containing liquid melt |
CH523730A (en) * | 1970-05-25 | 1972-06-15 | Interstop Ag | Slide gate on container for liquid melt |
AU502205B2 (en) | 1975-02-25 | 1979-07-19 | Kurosaki Refractories Co. Ltd. + Nippon Steel Corp. | Assembling a sliding gate |
-
1972
- 1972-05-23 IE IE752303A patent/IE36371L/en unknown
- 1972-05-23 IE IE2302/75A patent/IE36370B1/en unknown
- 1972-05-23 IE IE2303/75A patent/IE36371B1/en unknown
- 1972-05-23 ZA ZA723538A patent/ZA723538B/en unknown
- 1972-05-23 IE IE689/72A patent/IE36369B1/en unknown
- 1972-05-24 CA CA142,888A patent/CA979647A/en not_active Expired
- 1972-05-25 AU AU42733/72A patent/AU468448B2/en not_active Expired
- 1972-05-30 BE BE784174A patent/BE784174A/en not_active IP Right Cessation
- 1972-05-31 GB GB2554572A patent/GB1399011A/en not_active Expired
- 1972-06-02 FR FR7219870A patent/FR2140422B1/fr not_active Expired
- 1972-06-05 NL NLAANVRAGE7207611,A patent/NL166634C/en not_active IP Right Cessation
- 1972-06-05 ES ES403522A patent/ES403522A1/en not_active Expired
- 1972-06-06 DK DK281672AA patent/DK142692B/en unknown
- 1972-06-06 IT IT68792/72A patent/IT959067B/en active
- 1972-06-06 FI FI1588/72A patent/FI54068C/en active
- 1972-06-06 NO NO2002/72A patent/NO138194C/en unknown
- 1972-06-06 BR BR3614/72A patent/BR7203614D0/en unknown
- 1972-06-06 DE DE2227501A patent/DE2227501C3/en not_active Expired
- 1972-06-07 PL PL1972155880A patent/PL89017B1/pl unknown
- 1972-06-07 JP JP47056787A patent/JPS5143021B1/ja active Pending
- 1972-06-07 RO RO71178A patent/RO61583A/ro unknown
- 1972-06-07 AT AT490672A patent/AT324593B/en not_active IP Right Cessation
- 1972-06-07 SU SU1795332A patent/SU535029A3/en active
- 1972-06-07 YU YU1515/72A patent/YU41418B/en unknown
-
1973
- 1973-10-03 NO NO3838/73A patent/NO139378C/en unknown
- 1973-10-31 IN IN2401/CAL/73A patent/IN140770B/en unknown
- 1973-12-10 SU SU731975826A patent/SU661996A3/en active
-
1974
- 1974-01-02 DK DK001574A patent/DK153635C/en not_active IP Right Cessation
-
1975
- 1975-04-21 JP JP50048550A patent/JPS5222900B2/ja not_active Expired
- 1975-04-21 JP JP50048551A patent/JPS5184740A/ja active Pending
- 1975-09-18 JP JP1975128379U patent/JPS6121166Y2/ja not_active Expired
-
1976
- 1976-03-08 FR FR7606552A patent/FR2287959A1/en active Granted
-
1977
- 1977-05-26 HK HK249/77A patent/HK24977A/en unknown
- 1977-05-26 HK HK250/77A patent/HK25077A/en unknown
- 1977-05-26 HK HK251/77A patent/HK25177A/en unknown
-
1978
- 1978-11-23 YU YU2743/78A patent/YU42649B/en unknown
-
1980
- 1980-10-20 FR FR8022389A patent/FR2462952A1/en active Granted
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