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US3581948A - Sliding gate of a casting ladle for pouring liquid metals - Google Patents

Sliding gate of a casting ladle for pouring liquid metals Download PDF

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Publication number
US3581948A
US3581948A US849046A US3581948DA US3581948A US 3581948 A US3581948 A US 3581948A US 849046 A US849046 A US 849046A US 3581948D A US3581948D A US 3581948DA US 3581948 A US3581948 A US 3581948A
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Prior art keywords
sliding
plate
aperture
sliding gate
shutter
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US849046A
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Pol Detalle
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Interstop AG
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Interstop AG
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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
    • B22D41/42—Features relating to gas injection

Definitions

  • shutter is provided with an installation which will allow the prevention and/or the elimination of the solidification of the melt in the discharge canal of the casting ladle, particularly in the aperture of the firmly set plate of the sliding shutter.
  • the invention relates to a sliding gate for a casting ladle or similar container, provided with a bottom lip, for pouring liquid metals, particularly steel, said gate comprising a fireproof plate provided with an aperture to be firmly set under the bottom of the ladle by means of a metal frame piece, and a further refractory shutter plate provided with an outlet, set on a metal sliding piece which slides on the first plate and is slidably set in the rigid frame piece.
  • sliding gate on casting ladles is particularly useful for the pouring of metals, especially steel, as compared to the currently used and known stopping mechanisms of pouring containers which comprise stoppers and stopper rods.
  • the installation of sliding plugs on casting containers is of great advantage in case of special procedures as for instance when casting in vacuum and continuous casting, because in this case there are not any operating mechanisms leading out from the casting container to manipulate the stopper rod and the stopper.
  • there any damaging effect of the high temperatures, as is desirable in present day casting procedures, upon the tightness of the sliding gate as is the case in stopping systems comprising a stopper rod and a stopper, which cannot resist the current present day high temperatures and which cannot provide in such case a tight stopping of the casting ladle.
  • the customary stopper rods are exposed to the chemical corrosive action of the slag, which does not occur with sliding gate.
  • An object of the invention is to manufacture a sliding shutter of the above-mentioned type, provided with an installation which will allow the prevention and/or the elimination of the solidification of the melt in the discharge canal of the casting ladle, particularly in the aperture of the firmly set plate of the sliding shutter.
  • a further object of the invention consists in that in the shutter plate next to the aperture there is at least one boring, which when the sliding shutter is closed is located under the aperture of the firmly set plate and with a gas supply line positioned at its lower end.
  • a further object of the invention is to prevent the solidification of the liquid melted metal column resting above the shutter plate and also to recondition back into a casting condition of the already solidifying melt by forcing gas through the borehole.
  • a still further object is to provide a construction wherein into the borehole a gas permeable plug can be set in firmly which should be resistant to the liquid metal and should be refractory. It is advantageous that this plug should have a conical shape with the broadside toward the gas supply, in order to prevent the rising up of this plug into the melt because of the gas pressure.
  • the gas is supplied under such pressure that it allows overcoming the static pressure over the gas permeable plug, so that due to the streaming gas, the liquid metal is pushed to a turbulent current above the gas permeable plug. This allows the hotter parts of the melt during the circulation to come into the area of the bottom casting lip and the aperture of the refractory plate.
  • Inert gases for example argon, nitrogen, etc.
  • FIG. I is a first longitudinal cross-sectional view of a sliding shutter according to the invention.
  • FIGS. 2 to 4 enlarged cross sections of modifications of the sliding shutter according to FIG. 1.
  • the casting ladle 1 shown in FIG. 1 has, as is customary, a bottom 2 of iron or steel plate.
  • the inside of the casting ladle 1 is covered with a refractory material 3.
  • bedstone 4 is installed, into which runout stone 6 provided with a discharge canal 5 are set.
  • the sliding shutter 7 is composed of a metalframe piece 8 which is firmly connected with the bottom 2 of the casting ladle l, and which also holds immovably the plate 9 of highly refractory material provided with an aperture 10, so that runout canal 5 of runout stone 6 and aperture 10 of plate 9 are axially aligned with each other. 7
  • the metal frame piece 8 holds and has slidably set into it metal slider 11.
  • the metal slider 11 carries shutter plate 13 provided with an aperture 12 which lies against the underside of the plate 9 and which can be displaced according to the displacement of metal slider 11 in relation to plate 9.
  • the metal slider 11 also carries spout 15 with passage 14 located under sliding plate 13, and the passage aperture 12 of shutter plate 13 and passage 14 of spout 15 are axially aligned.
  • a stone 17 made of gas permeable and refractory material This stone 17 should have a conical shape upwards with its broad base on the gas supply line 18, in order to avoid the rising of the stone under gas pressure into the melt.
  • a gas supply line 18 discharges onto the lower transverse plane of stone 17.
  • the gas supply line 18 is firmly connected with metal slide 11 and leads to a container of gas under pressure (not shown).
  • the metal slide can be actuated with a hydraulic or other adequate drive 19, whereby the switching on and off of the gas under pressure can be combined herewith.
  • There is no possibility of clogging of the capillary and pores of the gas permeable stone 17 because the gas is led in only until the filtering stone I7 is taken out from the boring of the plate.
  • FIG. 2 shows only a part of the firmly set plate 9 and a part of the movably placed shutter plate 13 of the shutter 7.
  • Recess 21 tapers off streamlined from the gas inlet spot to boring 20.
  • Boring 20 should have a diameter up to 2 mm. and a length of more than 5 mm., whereas recess 21 depends on its length on boring 20 and the strength of plate 13 and should show at the gas inlet spot a clear diameter of more than mm.
  • Recess 21 can have on the gas inlet spot also other shapes, for instance an oval or rectangular shape.
  • the inside wall of recess 21 can be covered with a refractory layer which is highly gas permeable or impermeable.
  • FIG. 3 shows of shutter 7 only a part of the firmly set plate 9 and of the movable shutter plate 13.
  • plate 13 there are several borings 22 and a recess 21, which when the slide is closed are located under aperture 10 of plate 9.
  • FIG. 4 shows, like FIGS. 2 and 3 only part of the firmly set plate 9 and of the movable shutter plate 13.
  • shutter plate 13 there are several borings 23, which when the slide is closed are located under the aperture 10 of plate 9.
  • Sliding gate for a casting ladle or similar container provided with a bottom lip, for pouring liquid metals, particularly steel, comprising a rigid metal frame piece 8 under the bottom of the ladle; a fireproof plate 9 provided with an aperture firmly set in said frame piece; a sliding piece 11 under said fireproof plate, slidably set in said frame piece and having a pair of spaced apertures; a refractory shutter plate 13 having an outlet 12 cooperating with one of said apertures of the slid ing piece, and being supported on said sliding piece 11, said shutter plate 13 having adjacent said outlet 12 at least one boring l6 cooperating with the other of said apertures of said sliding piece and having shutter means 17 under said aperture 10 of said fireproof plate whereby a gas supply line may discharge onto the lower end of said boring.

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

Abstract

A sliding gate for a casting ladle provided with a bottom lip, for pouring liquid metals, particularly steel, composed of a fireproof plate provided with an aperture to be firmly set under the bottom of the ladle by means of a metal frame piece, and a further refractory shutter plate provided with an outlet, set on a metal sliding piece which slides on the first plate and is slidably set in the rigid frame piece. A sliding shutter is provided with an installation which will allow the prevention and/or the elimination of the solidification of the melt in the discharge canal of the casting ladle, particularly in the aperture of the firmly set plate of the sliding shutter.

Description

United States Patent 266/34PP 266/34PP W m .na em "P w p h SAST 7079 5666 9999 HUM 00 4 6453 4962 626 553 2233 m d nu v Wu h Ac [45] Patented June I, l97l P E S IF C l 73] Assignee lmersmp AG runary xammeramue o eman I Z Switzerland Assistant Examiner-T. E. Kocovshy Attorney-Wenderoth, Line & Ponack [541 SLIDING GATE OF A CASTING LADLE FOR POURING LIQUID METALS 8 Chums 4 Drawing ABSTRACT: A sliding gate for a casting ladle provided with a bottom lip, for pouring liquid metals, particularly steel, coml 164537122561. 266/34PR266/42 posed of a fireproof plate provided with an aperture to be 3674! firmly set under the bottom of the ladle by means of a metal frame piece, and a further refractory shutter plate provided l, 266/34 PF, 38, 13/33; with an outlet, set on a metal sliding piece which slides on the first plate and is slidably set in the rigid frame piece. A sliding [50] Field of l64/l36,28l, 337
shutter is provided with an installation which will allow the prevention and/or the elimination of the solidification of the melt in the discharge canal of the casting ladle, particularly in the aperture of the firmly set plate of the sliding shutter.
[56] References Cited UNITED STATES PATENTS 2,770,856 l1/l956 Becker PATENTEDJUN 1197i 3,5 1,94
' sum 2 we I l3 INVENTOR T ph 25:11-21 POL DETALLE is I k\ ATTORNEYS PATENTED JUN 1 um SHEET 3 OF 3 FIG .4
INVENTOR POL DETALLE BY WWMd,fl/MM ATTORNEYS SLIDING GATE OF A CASTING LADLE FOR POURING LIQUID METALS The invention relates to a sliding gate for a casting ladle or similar container, provided with a bottom lip, for pouring liquid metals, particularly steel, said gate comprising a fireproof plate provided with an aperture to be firmly set under the bottom of the ladle by means of a metal frame piece, and a further refractory shutter plate provided with an outlet, set on a metal sliding piece which slides on the first plate and is slidably set in the rigid frame piece.
The usage of sliding gate on casting ladles is particularly useful for the pouring of metals, especially steel, as compared to the currently used and known stopping mechanisms of pouring containers which comprise stoppers and stopper rods. The installation of sliding plugs on casting containers is of great advantage in case of special procedures as for instance when casting in vacuum and continuous casting, because in this case there are not any operating mechanisms leading out from the casting container to manipulate the stopper rod and the stopper. Nor is there any damaging effect of the high temperatures, as is desirable in present day casting procedures, upon the tightness of the sliding gate, as is the case in stopping systems comprising a stopper rod and a stopper, which cannot resist the current present day high temperatures and which cannot provide in such case a tight stopping of the casting ladle. Furthermore the customary stopper rods are exposed to the chemical corrosive action of the slag, which does not occur with sliding gate.
It has been proven when using sliding gate on casting ladles, that the steel around the aperture of the nonsliding fireproof plates solidifies very quickly, which means that out of the sliding stopper, which after the filling of a mould has been closed and is opened again for the filling of the next mould, no steel can flow out. The solidification of the melt is caused by the excessive heat dissipation which the melt suffers because of the refractory materials used for the plate and the stopping plate of the sliding stopper. These materials in order to be especially wear-resistant, have to be not only highly refractory but also verydense. These materials are at the same time good heat conductors, which causes the above-mentioned shortcomings.
Until now, when such difficulties occurred oxygen was blown into the passage canal to free it, so that by burning the metal the temperature would rise enough to reestablish the melt flow. This method presents many inconveniences, because the burning with oxygen can only be done when the sliding shutter is entirely opened, that is to say, when the aperture of the firmly set plate and that of the sliding plate are aligned exactly axially. Which means that after the burning up, the whole casting jet flows immediately out, thus producing great losses of steel and the danger of accidental burning with liquid steel becomes unbearable. Oxygen burning with only a partially open sliding shutter is not possible, because the edges of the passages on both plates become damaged and make the shutter inoperative.
An object of the invention is to manufacture a sliding shutter of the above-mentioned type, provided with an installation which will allow the prevention and/or the elimination of the solidification of the melt in the discharge canal of the casting ladle, particularly in the aperture of the firmly set plate of the sliding shutter.
A further object of the invention consists in that in the shutter plate next to the aperture there is at least one boring, which when the sliding shutter is closed is located under the aperture of the firmly set plate and with a gas supply line positioned at its lower end.
A further object of the invention is to prevent the solidification of the liquid melted metal column resting above the shutter plate and also to recondition back into a casting condition of the already solidifying melt by forcing gas through the borehole.
A still further object is to provide a construction wherein into the borehole a gas permeable plug can be set in firmly which should be resistant to the liquid metal and should be refractory. It is advantageous that this plug should have a conical shape with the broadside toward the gas supply, in order to prevent the rising up of this plug into the melt because of the gas pressure. The gas is supplied under such pressure that it allows overcoming the static pressure over the gas permeable plug, so that due to the streaming gas, the liquid metal is pushed to a turbulent current above the gas permeable plug. This allows the hotter parts of the melt during the circulation to come into the area of the bottom casting lip and the aperture of the refractory plate. Inert gases, for example argon, nitrogen, etc. which may also be heated are used in the application of these measures. Obviously also air or oxygen can be used, because the burning takes place now when the shutter is closed. It can further be noted that the above-mentioned danger of accident diminishes considerably. It may be advantageous, instead of a gas permeable plug, such as a refractory plug provided with capillary tubes and/or pores, to use in the shutter plate a plug with one or several boreholes. It can also be advantageous to make one or several perforations in the shutter plate, where gases are then forced through.
With the above and other objects in view which will become apparent from the detailed description below, some modifications ofthe invention are shown in the drawings, in which:
FIG. I is a first longitudinal cross-sectional view of a sliding shutter according to the invention, and
FIGS. 2 to 4 enlarged cross sections of modifications of the sliding shutter according to FIG. 1.
In all the drawings the same reference numbers designate the same parts.
The casting ladle 1 shown in FIG. 1 has, as is customary, a bottom 2 of iron or steel plate. The inside of the casting ladle 1 is covered with a refractory material 3. In the refractory covering material 3, bedstone 4 is installed, into which runout stone 6 provided with a discharge canal 5 are set.
Under the bottom 2 there has been installed the sliding shutter 7. The sliding shutter 7 is composed of a metalframe piece 8 which is firmly connected with the bottom 2 of the casting ladle l, and which also holds immovably the plate 9 of highly refractory material provided with an aperture 10, so that runout canal 5 of runout stone 6 and aperture 10 of plate 9 are axially aligned with each other. 7
The metal frame piece 8 holds and has slidably set into it metal slider 11. The metal slider 11 carries shutter plate 13 provided with an aperture 12 which lies against the underside of the plate 9 and which can be displaced according to the displacement of metal slider 11 in relation to plate 9. The metal slider 11 also carries spout 15 with passage 14 located under sliding plate 13, and the passage aperture 12 of shutter plate 13 and passage 14 of spout 15 are axially aligned.
In shutter plate 13 there is an additional boring l6. Boring 16 is made at such a distance to the runout aperture 12 in the shutter plate 13, that when the metal slide 11 and with it shutter plate 13 are in a closed position, boring 16 is located under the runout aperture of the firmly set plate 9.
Into boring I6 is firmly set a stone 17 made of gas permeable and refractory material. This stone 17 should have a conical shape upwards with its broad base on the gas supply line 18, in order to avoid the rising of the stone under gas pressure into the melt. A gas supply line 18 discharges onto the lower transverse plane of stone 17. The gas supply line 18 is firmly connected with metal slide 11 and leads to a container of gas under pressure (not shown). The metal slide can be actuated with a hydraulic or other adequate drive 19, whereby the switching on and off of the gas under pressure can be combined herewith. There is no possibility of clogging of the capillary and pores of the gas permeable stone 17 because the gas is led in only until the filtering stone I7 is taken out from the boring of the plate.
FIG. 2 shows only a part of the firmly set plate 9 and a part of the movably placed shutter plate 13 of the shutter 7.
In plate 13 there is a boring 20 and a recess 21, which when the slide is closed, is located under the aperture 10 of plate 9. The gas supply line discharges under recess 21, and from there the gas enters the melt through boring 20. Recess 21 tapers off streamlined from the gas inlet spot to boring 20. Boring 20 should have a diameter up to 2 mm. and a length of more than 5 mm., whereas recess 21 depends on its length on boring 20 and the strength of plate 13 and should show at the gas inlet spot a clear diameter of more than mm. Recess 21 can have on the gas inlet spot also other shapes, for instance an oval or rectangular shape.
For the gas not to have an opportunity to go uncontrolled from recess 21 into plate 13 and from there into the open air, the inside wall of recess 21 can be covered with a refractory layer which is highly gas permeable or impermeable.
If argon or nitrogen, that is to say inert gases are blown in, then the quantity of gas has to be measured in such a way that on one hand the circulation of the hot metal is guaranteed and on the other hand the cooling of said metal is avoided. It is preferable to use relatively small quantities at high entrance speed.
In order to adapt the gas pressure to all static pressures, well-known pressure regulation means are used to control the pressure of the gas.
FIG. 3 shows of shutter 7 only a part of the firmly set plate 9 and of the movable shutter plate 13. In plate 13 there are several borings 22 and a recess 21, which when the slide is closed are located under aperture 10 of plate 9.
FIG. 4 shows, like FIGS. 2 and 3 only part of the firmly set plate 9 and of the movable shutter plate 13. In shutter plate 13 there are several borings 23, which when the slide is closed are located under the aperture 10 of plate 9.
Iclaim:
1. Sliding gate for a casting ladle or similar container, provided with a bottom lip, for pouring liquid metals, particularly steel, comprising a rigid metal frame piece 8 under the bottom of the ladle; a fireproof plate 9 provided with an aperture firmly set in said frame piece; a sliding piece 11 under said fireproof plate, slidably set in said frame piece and having a pair of spaced apertures; a refractory shutter plate 13 having an outlet 12 cooperating with one of said apertures of the slid ing piece, and being supported on said sliding piece 11, said shutter plate 13 having adjacent said outlet 12 at least one boring l6 cooperating with the other of said apertures of said sliding piece and having shutter means 17 under said aperture 10 of said fireproof plate whereby a gas supply line may discharge onto the lower end of said boring.
2. Sliding gate according to claim 1 wherein said shutter means is a gas permeable plug set into said boring l6.
3. Sliding gate according to claim 2 wherein said plug is a stone made of a gas permeable and refractory material.
4. Sliding gate according to claim 2 wherein said boring l6 and said plug taper off upwards conically.
5. Sliding gate according to claim I wherein at least the upper end of said boring 16 has a smaller cross section than said aperture 10 of said fireproof plate.
6. Sliding gate according to claim 2 wherein the operative cross section of said plug is smaller on its upper end than that of said aperture 10.
7. Sliding gate according to claim 2 wherein said plug is made of a gas permeable material which does not react with the liquid metal.
8. Sliding gate according to claim 1 wherein a plurality of borings are provided which when said shutter means is closed cover part of said aperture 10 of said fireproof plate and are connected with a common gas supply line.

Claims (8)

1. Sliding gate for a casting ladle or similar container, provided with a bottom lip, for pouring liquid metals, particularly steel, comprising a rigid metal frame piece 8 under the bottom of the ladle; a fireproof plate 9 provided with an aperture firmly set in said frame piece; a sliding piece 11 under said fireproof plate, slidably set in said frame piece and having a pair of spaced apertures; a refractory shutter plate 13 having an outlet 12 cooperating with one of said apertures of the sliding piece, and being supportEd on said sliding piece 11, said shutter plate 13 having adjacent said outlet 12 at least one boring 16 cooperating with the other of said apertures of said sliding piece and having shutter means 17 under said aperture 10 of said fireproof plate whereby a gas supply line may discharge onto the lower end of said boring.
2. Sliding gate according to claim 1 wherein said shutter means is a gas permeable plug set into said boring 16.
3. Sliding gate according to claim 2 wherein said plug is a stone made of a gas permeable and refractory material.
4. Sliding gate according to claim 2 wherein said boring 16 and said plug taper off upwards conically.
5. Sliding gate according to claim 1 wherein at least the upper end of said boring 16 has a smaller cross section than said aperture 10 of said fireproof plate.
6. Sliding gate according to claim 2 wherein the operative cross section of said plug is smaller on its upper end than that of said aperture 10.
7. Sliding gate according to claim 2 wherein said plug is made of a gas permeable material which does not react with the liquid metal.
8. Sliding gate according to claim 1 wherein a plurality of borings are provided which when said shutter means is closed cover part of said aperture 10 of said fireproof plate and are connected with a common gas supply line.
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Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684267A (en) * 1970-01-12 1972-08-15 United States Steel Corp Apparatus for introducing gas to hot metal in a bottom-pour vessel
US3712518A (en) * 1969-10-13 1973-01-23 Interstop Ag Sliding gate nozzle for vessels used for pouring metals
US3743139A (en) * 1971-08-09 1973-07-03 United States Steel Corp Method and apparatus for initiating pouring from a blocked opening of a bottom pour vessel
US3773226A (en) * 1970-04-23 1973-11-20 Didier Werke Ag Container with sliding shutter for a liquid melt
US3779742A (en) * 1969-12-04 1973-12-18 Didier Werke Ag Method of remelting a frozen metal plug in the ceramic nozzle of a metallurgical vessel
US3809146A (en) * 1972-02-18 1974-05-07 Steel Corp Method of opening an intermediate vessel nozzle for continuous casting
US3823931A (en) * 1972-10-25 1974-07-16 Sydney Steel Corp Tapping of a blast furnace
DE2409670A1 (en) * 1973-03-01 1974-09-12 Uss Eng & Consult METHOD AND DEVICE FOR CONTROLLING THE FLOW OF THE MELT FROM CASTING PANS PROVIDED WITH A BOTTOM SPOUT
US3856284A (en) * 1972-08-21 1974-12-24 Voest Alpine Montan Ag Container for hot liquid metals
DE2428120A1 (en) * 1973-10-26 1975-04-30 Uss Eng & Consult PUSH-THROUGH SLIDER FOR CLOSING THE CASTING NOZZLE FROM CASTING BARRELS
US3918613A (en) * 1973-03-01 1975-11-11 United States Steel Corp Sliding gate having selectively operable gas line for porous plug
US3982582A (en) * 1973-12-08 1976-09-28 Concast Ag Method and apparatus for casting metals into a continuous casting mold
US3989089A (en) * 1973-09-21 1976-11-02 Hitachi Metals, Ltd. Hollow core molding device for use in shell mold
US4091971A (en) * 1975-10-31 1978-05-30 Metacon A.G. Molten metal nozzle having capillary gas feed
US4219188A (en) * 1978-08-19 1980-08-26 Stopinc Aktiengesellschaft Slide valve for the injection of material for use in the outlet of a metallurgical vessel
FR2455939A1 (en) * 1979-05-07 1980-12-05 Metacon Ag DRAWER CLOSURE FOR THE CASTING CHANNEL OF AN OVEN OR METALLURGICAL TANK
US4256291A (en) * 1978-10-25 1981-03-17 Enrico Dellepiane Three-positions sliding gate valve
US4268016A (en) * 1978-06-19 1981-05-19 Didier-Werke Ag Valve element for sliding type valve joints on the outlet of vessels containing molten metal and process for making same
US4269399A (en) * 1979-05-07 1981-05-26 Metacon Ag Metallurgical furnace
US4290306A (en) * 1979-03-05 1981-09-22 Kawasaki Jukogyo Kabushiki Kaisha Method and apparatus for probing into a refining furnace or the like for temperature measurement for sampling, or for both
US4294437A (en) * 1978-10-12 1981-10-13 Nippon Kokan Kabushiki Kaisha Slide closure for the pouring nozzle of a molten metal vessel
US4320668A (en) * 1979-03-28 1982-03-23 Nippon Kokan Kabushiki Kaisha Sub-lance assembly for sampling and temperature-measuring of molten metal during refining thereof
FR2499434A1 (en) * 1981-02-12 1982-08-13 Uss Eng & Consult METHOD AND APPARATUS FOR CASTING SOURCE OF A MOLTEN METAL
FR2533473A1 (en) * 1982-09-28 1984-03-30 Detalle Richard METHOD OF CONTROLLING AND OPENING THE CASTING HOLES OF CONTAINERS CONTAINING LIQUID METALS AND THE LIKE, AND DEVICE FOR IMPLEMENTING SAME
FR2540759A1 (en) * 1983-02-16 1984-08-17 Toshiba Ceramics Co Casting ladle slide valve for teeming
US4583721A (en) * 1983-11-02 1986-04-22 Toshiba Ceramics Co., Ltd. Molten metal discharging device
US4590988A (en) * 1983-09-26 1986-05-27 Nippon Steel Corporation Method and apparatus for supplying molten metal in the manufacture of amorphous metal ribbons
US4632283A (en) * 1983-11-02 1986-12-30 Toshiba Ceramics Co., Ltd. Molten metal discharging device
US4641768A (en) * 1984-05-11 1987-02-10 Uss Engineers And Consultants, Inc. Teeming apparatus and method
US4679773A (en) * 1985-09-30 1987-07-14 Wunsche Edgar R Horizontal tapping furnace and method of operation
US4799649A (en) * 1986-07-15 1989-01-24 Flo-Con Systems, Inc. Injection valve components and method
US4824079A (en) * 1986-07-15 1989-04-25 Flo-Con Systems, Inc. Injection valve components and method
US5119976A (en) * 1987-06-05 1992-06-09 Stopinc Aktiengsellschaft Process and apparatus for injecting gas into a discharge opening of a metallurgical vessel
US20110226437A1 (en) * 2008-09-05 2011-09-22 Stopinc Aktiengesellschaft Copper Anode Furnace and a Method for Operating the Same
CN103658629A (en) * 2013-12-18 2014-03-26 宁夏维尔铸造有限责任公司 Molten steel argon blowing and pouring method
CN104254416A (en) * 2012-02-29 2014-12-31 伊拉斯蒂尔·克罗斯特公司 System for atomizing metal and method for atomizing metal powder

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712518A (en) * 1969-10-13 1973-01-23 Interstop Ag Sliding gate nozzle for vessels used for pouring metals
US3779742A (en) * 1969-12-04 1973-12-18 Didier Werke Ag Method of remelting a frozen metal plug in the ceramic nozzle of a metallurgical vessel
US3684267A (en) * 1970-01-12 1972-08-15 United States Steel Corp Apparatus for introducing gas to hot metal in a bottom-pour vessel
US3773226A (en) * 1970-04-23 1973-11-20 Didier Werke Ag Container with sliding shutter for a liquid melt
US3743139A (en) * 1971-08-09 1973-07-03 United States Steel Corp Method and apparatus for initiating pouring from a blocked opening of a bottom pour vessel
US3809146A (en) * 1972-02-18 1974-05-07 Steel Corp Method of opening an intermediate vessel nozzle for continuous casting
US3856284A (en) * 1972-08-21 1974-12-24 Voest Alpine Montan Ag Container for hot liquid metals
US3823931A (en) * 1972-10-25 1974-07-16 Sydney Steel Corp Tapping of a blast furnace
US3918613A (en) * 1973-03-01 1975-11-11 United States Steel Corp Sliding gate having selectively operable gas line for porous plug
DE2409670A1 (en) * 1973-03-01 1974-09-12 Uss Eng & Consult METHOD AND DEVICE FOR CONTROLLING THE FLOW OF THE MELT FROM CASTING PANS PROVIDED WITH A BOTTOM SPOUT
US3989089A (en) * 1973-09-21 1976-11-02 Hitachi Metals, Ltd. Hollow core molding device for use in shell mold
DE2428120A1 (en) * 1973-10-26 1975-04-30 Uss Eng & Consult PUSH-THROUGH SLIDER FOR CLOSING THE CASTING NOZZLE FROM CASTING BARRELS
US3982582A (en) * 1973-12-08 1976-09-28 Concast Ag Method and apparatus for casting metals into a continuous casting mold
US4091971A (en) * 1975-10-31 1978-05-30 Metacon A.G. Molten metal nozzle having capillary gas feed
US4268016A (en) * 1978-06-19 1981-05-19 Didier-Werke Ag Valve element for sliding type valve joints on the outlet of vessels containing molten metal and process for making same
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