US3825241A - Apparatus for introducing gas to hot metal in a bottom pour vessel - Google Patents

Apparatus for introducing gas to hot metal in a bottom pour vessel Download PDF

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Publication number
US3825241A
US3825241A US00409834A US40983473A US3825241A US 3825241 A US3825241 A US 3825241A US 00409834 A US00409834 A US 00409834A US 40983473 A US40983473 A US 40983473A US 3825241 A US3825241 A US 3825241A
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United States
Prior art keywords
gate
refractory
vessel
nozzle
gas
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US00409834A
Inventor
J Shapland
W Township
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United States Steel Corp
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Steel Corp
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Publication date
Application filed by Steel Corp filed Critical Steel Corp
Priority to US00409834A priority Critical patent/US3825241A/en
Priority to ZA00743427A priority patent/ZA743427B/en
Priority to IN1209/CAL/74A priority patent/IN139602B/en
Priority to NLAANVRAGE7407620,A priority patent/NL176842C/en
Priority to AU69895/74A priority patent/AU477700B2/en
Priority to CA202,102A priority patent/CA1014717A/en
Priority to DE2428120A priority patent/DE2428120C3/en
Priority to BE145818A priority patent/BE816782A/en
Priority to JP49072703A priority patent/JPS5761503B2/ja
Priority to FR7422379A priority patent/FR2248898B1/fr
Priority to AR254446A priority patent/AR201777A1/en
Priority to NO742356A priority patent/NO742356L/no
Priority to YU1821/74A priority patent/YU36881B/en
Priority to AT550474A priority patent/AT336819B/en
Priority to FI2073/74A priority patent/FI207374A/fi
Priority to IT69172/74A priority patent/IT1016536B/en
Priority to BR5658/74A priority patent/BR7405658D0/en
Priority to RO7479476A priority patent/RO65032A/en
Priority to DK378074AA priority patent/DK139343B/en
Priority to GB3101574A priority patent/GB1428644A/en
Priority to TR18380A priority patent/TR18380A/en
Application granted granted Critical
Publication of US3825241A publication Critical patent/US3825241A/en
Priority to HU74UE00000051A priority patent/HU171692B/en
Priority to ES431365A priority patent/ES431365A1/en
Assigned to USX CORPORATION, A CORP. OF DE reassignment USX CORPORATION, A CORP. OF DE MERGER (SEE DOCUMENT FOR DETAILS). Assignors: UNITED STATES STEEL CORPORATION (MERGED INTO)
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04—Regulation of charging current or voltage

Definitions

  • ABSTRACT A sliding gate apparatus for controlling the pouring of hot metal from a bottom pour vessel into a continuous casting mold is disclosed.
  • the gate includes a permeable -refractory block positioned beneath the vessel pouring opening when the gate is in the active posi tion.
  • the permeable plug has a low permeability center, thus any gas introduced to the hot metal through the plug will tend to flow near the sides of the vessel opening.
  • This invention relates to an improved refractory closure apparatus through which gas can be introduced to molten metal in a bottom pour vessel.
  • molten metal is poured from a ladle into an intermediate pouring vessel such as a tundish or a degassing vessel and from thence into a mold.
  • the intermediate pouring vessel is usually recessed above the nozzle.
  • the metal that first reaches this recess has already lost much of its heat to'the lining of the vessel. This rather quiescent metal settles into the recess, loses additional heat to its surroundings and begins to solidify.
  • the molten metal in the vessel above the recess does not contain sufficient superheat to remelt the solidified metal. Opening the blocked recess has heretofore been accomplished by use of an oxygen lance or by use of slidable gates such as are shown in U.S. Pat. No.
  • the area of the nozzle well that tends to be coldest is that portion nearest the walls of the well, this is the region in which scull and-solidified metal is most likely to form. It is also the region from which the scull is most difficult to wash free.
  • FIG. 1 is a cross section through the nozzle of a bottom pour vessel equipped with a slidable gate constructed in accordance with my invention.
  • FIG. 2 is a cross section of my invented sliding gate on a larger scale than in FIG. 1.
  • FIG. 3 is a top view of the slidable gate of FIG. 2.
  • FIG. 4 is a cross section of an alternative sliding gate which employs a permeable refractory block having a number of holes therein.
  • FIG. 5 is a cross section of the gate of FIG. 4 taken along line V-V of FIG. 4.
  • FIG. 6 is a cross section through the nozzle of a bottom pour vessel equipped with a slidable gate having an alternative gas supply arrangement.
  • FIG. 7 is a cross section of an alternative sliding gate having an annular gas distribution chamber.
  • bottom pour vessel 10 is provided with a refractory lining l2 for receiving molten metal.
  • the bottom wall of the vessel has a well or recess 14 and an outlet opening 16 and carries a nozzle plate 17 fixed to its underside which plate 17 has a nozzle 18 aligned with the opening 16.
  • a sliding (or slidable) gate closure member 20 is mounted beneath the nozzle.
  • the gate can be supported and operated in any desired manner, hence the supporting and operating mechanism is not shown.
  • the gate includes a solid refractory portion 22 (see FIG. 2) having a central opening 24.
  • annular refractory ring or plug 26 is situated in opening 24.
  • the ring 26 surrounds a refractory core 28 of a lower permeability (more dense) material or a nonpermeable material.
  • Tofacilitate assembly of the slidable gate there may be included a bottom refractory 30.
  • the sides and bottom of the slidable gate may be covered by a steel jacket 32.
  • a pipe 34 communicates with chamber 36 beneath ring 26 and is connected to a source of gas 38 (FIG. 1).
  • gate 20 When vessel 10 is prepared to receive molten metal, gate 20 is placed into the position shown in FIG. 1 and gas flow is started through the gate into the nozzle region of the vessel. Molten metal is then poured into the vessel. Gas fiow into the nozzle region prevents solidification of metal in well 14, outlet 16 or nozzle 18 by agitating the metal nearthe nozzle wall to a greater degree than agitation of the metal in the center of the nozzle well.
  • the alternative sliding gate configuration of FIGS. 4 and 5 includes a permeable refractory block 40 centered in the upper portion of the gate 20.
  • the block 40 contains a series of holes 42 near its perimeter to create a ring or zone of increased permeability. Thus most gas will follow the path of least resistance and move upwardly through the portion of the permeable refractory block above these holes into the nozzle well in a ring of generally the same configuration as the holes beneath it.
  • the alternative gas distribution system shown in FIG. 6 includes a slidable gate 60 which differs from gate of FIG. 1 only by the orientation of pipe 62.
  • Pipe 62 communicates at one end with chamber 64 beneath ring 66, and at the other end communicates with a mating pipe 68 embedded in nozzle plate 17, which pipe 68 communicates in turn with pipe 70 which passes through vessel mounting plate 72 and is connected to a source of gas 74.
  • the alternative slidable gate 80 of FIG. 7 includes an impermeable or low permeability central core 82 (which can be cylindrical, or dual-cylindrically-shaped as shown) and a more permeable ring or sleeve 84, so shaped to form an annular gas distribution chamber 86 in the gate.
  • Pipe 88 communicates with chamber 86 and with gas source 74 through pipes 68 and 70.
  • the advantage in having the gas pipes in the nozzle plate and mounting plate is that no time or effort is needed to attach a gas connection to a gas-injecting slidable gate. Positioning of the gate accurately effects the necessary connection.
  • the gates of my invention perform in the same manner as a regular closure gate in physically stopping the flow of molten metal yet they perform the additional function of stirring or agitating the molten metal in the nozzle region thus preventing solidification of the metal in this region prior to the beginning of the pour.
  • the gates have the additional capability of performing as regular closure gates regardless of whether a gas flow has begun. Should the permeable block become plugged or penetrated by molten metal, the gate can easily be replaced by a fresh gate.
  • a slide-through gate for closing the pouring nozzle of a molten-metal containing bottom-pour vessel, said gate comprising a first refractory body
  • a second refractory body set in said first refractory body and having an upper surface no higher than the upper surface of said first refractory body, said second refractory body having an annular portion of higher permeability than its center portion,
  • said refractory bodies forming a gas distribution chamber in said gate
  • a gate according to claim 1 wherein said second refractory has a thick central portion and a thinner annular portion.
  • a gate according to claim 1 further comprising an impermeable metal jacket covering the sides of said gate.
  • a gate according to claim 9 further comprising an impermeable metal jacket covering the bottom of said gate.
  • a bottom pour vessel having an outlet in its bottom wall, a nozzle plate having a pouring nozzle therein fixed to said vessel beneath said outlet and having said nozzle aligned with said outlet, and carrying a gas pipe in the body of said nozzle plate extending from the bottom surface of said nozzle plate to another surface of said nozzle plate, a slidable gate mounted beneath said nozzle plate for closing said pouring nozzle; said gate comprising:
  • first refractory body a second refractory body set in said first refractory body and having an upper surface no higher than the upper surface of said first refractory body, said second refractory body having an annular portion of higher permeability than its center portion,
  • said refractory bodies forming a gas distribution chamber in said gate

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Continuous Casting (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

A sliding gate apparatus for controlling the pouring of hot metal from a bottom pour vessel into a continuous casting mold is disclosed. The gate includes a permeable refractory block positioned beneath the vessel pouring opening when the gate is in the active position. The permeable plug has a low permeability center, thus any gas introduced to the hot metal through the plug will tend to flow near the sides of the vessel opening.

Description

United States Patent [191 Shapland [451 July 23, 1974 [75] Inventor: James T. Shapland, Wilkins Township, Allegheny County, Pa.
[73] Assignee: United States Steel Corporation,
Pittsburgh, Pa.
[22] Filed: Oct. 26, I973 21 Appl. No.: 409,834
[52] US. CI. 266/38 [51] Int. Cl. F2711 3/14 [58] Field of Search 266/34 PP, 38; 164/66, j
' [56] References Cited UNITED STATES PATENTS 3,684,267 8/1972 Andllejt lkm 266/38 Primary Examiner-Gerald A. Dost Attorney, Agent, or FirmRalph H. Dougherty [57] ABSTRACT A sliding gate apparatus for controlling the pouring of hot metal from a bottom pour vessel into a continuous casting mold is disclosed. The gate includes a permeable -refractory block positioned beneath the vessel pouring opening when the gate is in the active posi tion. The permeable plug has a low permeability center, thus any gas introduced to the hot metal through the plug will tend to flow near the sides of the vessel opening.
11 Claims, 7 Drawing Figures PATiNIEnJuLzamn' SHEET 1 0F 4 FIG.
38 6.4.5 SOURCE 3.825.241 saw anr 4 PAIENIED JULZ 3X9" FIG. 5
APPARATUS FOR INTRODUCING GAS TO HOT METAL IN A BOTTOM POUR VESSEL This invention relates to an improved refractory closure apparatus through which gas can be introduced to molten metal in a bottom pour vessel.
In the continuous casting of steel, molten metal is poured from a ladle into an intermediate pouring vessel such as a tundish or a degassing vessel and from thence into a mold. The intermediate pouring vessel is usually recessed above the nozzle. The metal that first reaches this recess has already lost much of its heat to'the lining of the vessel. This rather quiescent metal settles into the recess, loses additional heat to its surroundings and begins to solidify. The molten metal in the vessel above the recess does not contain sufficient superheat to remelt the solidified metal. Opening the blocked recess has heretofore been accomplished by use of an oxygen lance or by use of slidable gates such as are shown in U.S. Pat. No. 3,684,267. The use of an oxygen lance is undesirable as it impairs the quality of metal and usually damages the nozzle and refractories in the immediate vicinity of the nozzle. When the slidable gate of FIG. 1 of U.S. Pat. No. 3,684,267 is used to introduce gas to agitate the metal in thenozzle well, metal in the lowermost corners of the nozzle well against the slidable gate 16 fails to be agitated and thus freezes. Although the nozzle is opened, the initial metal flow rate is generally slow and if the heat tends to be cold, the stream can freeze before the opening is completely washed clean. If the slidable gates of either FIG. 2 or FIG. 3 of the patent are used to introduce inert gas to agitate the metal or to introduce oxidizing gas to burn the metal and create a superheated area to insure metal flow, a situation similar to that of FIG. 1 of the patent is encountered. The permeability of the plug must be sufficiently high to prevent the entry of molten metal into the interstices of the plug and generally this high permeability causes the gas to flow unevenly through the plug. Additional gas is then channeled to the area where flow is easiest. Thus gas is not introducedacross the entire area of the nozzle well as intended. This results in a certain portion of the metal above the plug not being molten if the heat tends to be cold. The stream which has been constricted by thissolidified metal can freeze off before the opening is washed clean.
Since the area of the nozzle well that tends to be coldest is that portion nearest the walls of the well, this is the region in which scull and-solidified metal is most likely to form. It is also the region from which the scull is most difficult to wash free.
Slidable gates have been known since Lewis U.S. Pat. No. 311,902 disclosed a reciprocable sliding gate in 1883. Shapland Reissue Patent Re. 27,237 discloses a slidable refractory closure member or gate for bottom pour vessels. Neither reference teaches a permeable plug in the gate through'which gas can be introduced to the molten metal in the vessel. Pol Detalle U.S. Pat. No. 3,581,948 teaches the use of a permeable plug 16 in an opening of a slidable gate for introducing gas to the nozzle well area. Each of his arrangements fails to disclose how to prevent solidification of material near the walls of his aperture 10.
It is the principal object of my invention to provide an improved closure apparatus which includes means for introducing gas through a slidable gate into the region in whichmolten metal is most likely to solidify in a nozzle well of a bottom pour vessel.
It is also an object to provide a sliding gate closure apparatus equipped with means for either agitating hot metal or superheating hot metal in the recess around the nozzle of a bottom pour vessel or both to insure a smooth, free flowing stream when a teeming gate is placed in the active position beneath the nozzle opening, replacing the invented gate. 1 My invention is better understood with reference to the following detailed description and the appended drawings in which:
FIG. 1 is a cross section through the nozzle of a bottom pour vessel equipped with a slidable gate constructed in accordance with my invention.
FIG. 2 is a cross section of my invented sliding gate on a larger scale than in FIG. 1.
FIG. 3 is a top view of the slidable gate of FIG. 2.
FIG. 4 is a cross section of an alternative sliding gate which employs a permeable refractory block having a number of holes therein.
FIG. 5 is a cross section of the gate of FIG. 4 taken along line V-V of FIG. 4.
FIG. 6 is a cross section through the nozzle of a bottom pour vessel equipped with a slidable gate having an alternative gas supply arrangement.
FIG. 7 is a cross section of an alternative sliding gate having an annular gas distribution chamber.
As shown in FIG. 1, bottom pour vessel 10 is provided with a refractory lining l2 for receiving molten metal. The bottom wall of the vessel has a well or recess 14 and an outlet opening 16 and carries a nozzle plate 17 fixed to its underside which plate 17 has a nozzle 18 aligned with the opening 16. A sliding (or slidable) gate closure member 20 is mounted beneath the nozzle. The gate can be supported and operated in any desired manner, hence the supporting and operating mechanism is not shown. The gate includes a solid refractory portion 22 (see FIG. 2) having a central opening 24. A
high permeability (readily permeable) annular refractory ring or plug 26 is situated in opening 24. The ring 26 surrounds a refractory core 28 of a lower permeability (more dense) material or a nonpermeable material. Tofacilitate assembly of the slidable gate, there may be included a bottom refractory 30. The sides and bottom of the slidable gate may be covered by a steel jacket 32. A pipe 34 communicates with chamber 36 beneath ring 26 and is connected to a source of gas 38 (FIG. 1).
When vessel 10 is prepared to receive molten metal, gate 20 is placed into the position shown in FIG. 1 and gas flow is started through the gate into the nozzle region of the vessel. Molten metal is then poured into the vessel. Gas fiow into the nozzle region prevents solidification of metal in well 14, outlet 16 or nozzle 18 by agitating the metal nearthe nozzle wall to a greater degree than agitation of the metal in the center of the nozzle well.
The alternative sliding gate configuration of FIGS. 4 and 5 includes a permeable refractory block 40 centered in the upper portion of the gate 20. The block 40 contains a series of holes 42 near its perimeter to create a ring or zone of increased permeability. Thus most gas will follow the path of least resistance and move upwardly through the portion of the permeable refractory block above these holes into the nozzle well in a ring of generally the same configuration as the holes beneath it.
The alternative gas distribution system shown in FIG. 6 includes a slidable gate 60 which differs from gate of FIG. 1 only by the orientation of pipe 62. Pipe 62 communicates at one end with chamber 64 beneath ring 66, and at the other end communicates with a mating pipe 68 embedded in nozzle plate 17, which pipe 68 communicates in turn with pipe 70 which passes through vessel mounting plate 72 and is connected to a source of gas 74.
The alternative slidable gate 80 of FIG. 7 includes an impermeable or low permeability central core 82 (which can be cylindrical, or dual-cylindrically-shaped as shown) and a more permeable ring or sleeve 84, so shaped to form an annular gas distribution chamber 86 in the gate. Pipe 88 communicates with chamber 86 and with gas source 74 through pipes 68 and 70.
The advantage in having the gas pipes in the nozzle plate and mounting plate is that no time or effort is needed to attach a gas connection to a gas-injecting slidable gate. Positioning of the gate accurately effects the necessary connection.
The gates of my invention perform in the same manner as a regular closure gate in physically stopping the flow of molten metal yet they perform the additional function of stirring or agitating the molten metal in the nozzle region thus preventing solidification of the metal in this region prior to the beginning of the pour. The gates have the additional capability of performing as regular closure gates regardless of whether a gas flow has begun. Should the permeable block become plugged or penetrated by molten metal, the gate can easily be replaced by a fresh gate.
It is readily apparent from the foregoing that I have invented a slidable gate for introducing gas therethrough to hot metal in a bottom pour vessel which gas will agitate the metal near the walls of a nozzle well to insure the nozzle opening upon teeming molten metal through the nozzle.
I claim:
1. A slide-through gate for closing the pouring nozzle of a molten-metal containing bottom-pour vessel, said gate comprising a first refractory body,
a second refractory body set in said first refractory body and having an upper surface no higher than the upper surface of said first refractory body, said second refractory body having an annular portion of higher permeability than its center portion,
said refractory bodies forming a gas distribution chamber in said gate, and
means connected to said gate and communicating with said chamber for introducing gas to said vessel through said second refractory body. 2. A gate according to claim 1 wherein said second refractory includes a central refractory core of lower permeability than the surrounding portion of said second refractory.
3. A gate according to claim 2 wherein said central refractory core is non-permeable.
4. A gate according to claim 1 wherein said second refractory has a thick central portion and a thinner annular portion.
5. A gate according to claim 1 wherein said second refractory is provided with a number of holes substantially normal to the upper surface and extending from said chamber upwards into said second refractory to create a zone of increased permeability.
6. A gate according to claim 5 wherein said holes create a ring of increased permeability.
7. A gate according to claim 1 wherein said chamber is beneath said second body.
8. A gate according to claim 1 wherein said chamber encircles a portion of said second body.
9. A gate according to claim 1 further comprising an impermeable metal jacket covering the sides of said gate.
10. A gate according to claim 9 further comprising an impermeable metal jacket covering the bottom of said gate.
11. In combination, a bottom pour vessel having an outlet in its bottom wall, a nozzle plate having a pouring nozzle therein fixed to said vessel beneath said outlet and having said nozzle aligned with said outlet, and carrying a gas pipe in the body of said nozzle plate extending from the bottom surface of said nozzle plate to another surface of said nozzle plate, a slidable gate mounted beneath said nozzle plate for closing said pouring nozzle; said gate comprising:
a first refractory body a second refractory body set in said first refractory body and having an upper surface no higher than the upper surface of said first refractory body, said second refractory body having an annular portion of higher permeability than its center portion,
said refractory bodies forming a gas distribution chamber in said gate, and
a gas pipe communicating with said chamber and extending to the upper surface of said gate where it communicates with and is aligned with said gas pipe in said nozzle plate; and
means communicating with said gas pipe in said nozzle plate for introducing gas to said vessel through said gas pipes and said second refractory body.

Claims (11)

1. A slide-through gate for closing the pouring nozzle of a molten-metal containing bottom-pour vessel, said gate comprising a first refractory body, a second refractory body set in said first refractory body and having an upper surface no higher than the upper surface of said first refractory body, said second refractory body having an annular portion of higher permeability than its center portion, said refractory bodies forming a gas distribution chamber in said gate, and means connected to said gate and communicating with said chamber for introducing gas to said vessel through said second refractory body.
2. A gate according to claim 1 wherein said second refractory includes a central refractory core of lower permeability than the surrounding portion of said second refractory.
3. A gate according to claim 2 wherein said central refractory core is non-permeable.
4. A gate according to claim 1 wherein said second refractory has a thick central portion and a thinner annular portion.
5. A gate according to claim 1 wherein said second refractory is provided with a number of holes substantially normal to the upper surface and extending from said chamber upwards into said second refractory to create a zone of increased permeability.
6. A gate according to claim 5 wherein said holes create a ring of increased permeability.
7. A gate according to claim 1 wherein said chamber is beneath said second body.
8. A gate according to claim 1 wherein said chamber encircles a portion of said second body.
9. A gate according to claim 1 further comprising an impermeable metal jacket covering the sides of said gate.
10. A gate according to claim 9 further comprising an impermeable metal jacket covering the bottom of said gate.
11. In combination, a bottom pour vessel having an outlet in its bottom wall, a nozzle plate having a pouring nozzle therein fixed to said vessel beneath said outlet and having said nozzle aligned with said outlet, and carrying a gas pipe in the body of said nozzle plate extending from the bottom surface of said nozzle plate to another surface of said nozzle plate, a slidable gate mounted beneath said nozzle plate for closing said pouring nozzle; said gate comprising: a fiRst refractory body a second refractory body set in said first refractory body and having an upper surface no higher than the upper surface of said first refractory body, said second refractory body having an annular portion of higher permeability than its center portion, said refractory bodies forming a gas distribution chamber in said gate, and a gas pipe communicating with said chamber and extending to the upper surface of said gate where it communicates with and is aligned with said gas pipe in said nozzle plate; and means communicating with said gas pipe in said nozzle plate for introducing gas to said vessel through said gas pipes and said second refractory body.
US00409834A 1973-10-26 1973-10-26 Apparatus for introducing gas to hot metal in a bottom pour vessel Expired - Lifetime US3825241A (en)

Priority Applications (23)

Application Number Priority Date Filing Date Title
US00409834A US3825241A (en) 1973-10-26 1973-10-26 Apparatus for introducing gas to hot metal in a bottom pour vessel
ZA00743427A ZA743427B (en) 1973-10-26 1974-05-28 Apparatus for introducing gas to hot metal in a bottom-pour vessel
IN1209/CAL/74A IN139602B (en) 1973-10-26 1974-06-04
NLAANVRAGE7407620,A NL176842C (en) 1973-10-26 1974-06-06 SLIDING CONSTRUCTION FOR SEALING THE CAST NOZZLE OF A CASTING VESSEL.
AU69895/74A AU477700B2 (en) 1973-10-26 1974-06-07 Apparatus for introducing gas to hot metal in a bottom pour vessel
CA202,102A CA1014717A (en) 1973-10-26 1974-06-10 Apparatus for introducing gas to hot metal in a bottom pour vessel
DE2428120A DE2428120C3 (en) 1973-10-26 1974-06-11 Device for introducing gas into the flow opening of a pouring vessel provided with a slide valve
BE145818A BE816782A (en) 1973-10-26 1974-06-24 APPARATUS FOR INTRODUCING A GAS INTO A HOT METAL CONTAINED IN A BOTTOM-CAST CONTAINER
JP49072703A JPS5761503B2 (en) 1973-10-26 1974-06-25
AR254446A AR201777A1 (en) 1973-10-26 1974-06-27 THROUGH SLIDING DOOR TO CLOSE THE SPOUT NOZZLE OF A SPOUT CONTAINER THROUGH THE BOTTOM
FR7422379A FR2248898B1 (en) 1973-10-26 1974-06-27
YU1821/74A YU36881B (en) 1973-10-26 1974-06-28 Apparatus for introducing gas to hot metl in a boto-pour vessel
NO742356A NO742356L (en) 1973-10-26 1974-06-28
AT550474A AT336819B (en) 1973-10-26 1974-07-03 SLIDER FOR CLOSING THE OUTLET NOZZLE OF A WATERING VESSEL
FI2073/74A FI207374A (en) 1973-10-26 1974-07-05
IT69172/74A IT1016536B (en) 1973-10-26 1974-07-08 APPARATUS FOR INTRODUCING GAS ON HOT METAL INTO A CONTAINER CASTING FROM THE BOTTOM
BR5658/74A BR7405658D0 (en) 1973-10-26 1974-07-10 SLIDING PORTINHOLA FOR CLOSING THE UNLOADING TUBE OF A UNLOADING CONTAINER BY THE FUND
DK378074AA DK139343B (en) 1973-10-26 1974-07-12 Penetration closure for closing the tap hole in a bottom casting container.
GB3101574A GB1428644A (en) 1973-10-26 1974-07-12 Apparatus for introducing gas to hot metal in a bottom pour vessel
RO7479476A RO65032A (en) 1973-10-26 1974-07-12 SLIDING VALVE DEVICE FOR UNLOADING ORIFICE FLOWING A CASTING POUCH
TR18380A TR18380A (en) 1973-10-26 1974-07-12 PROCEDURE FOR IMPORTING GAS TO HOT METAL IN A BOILER THAT LEAVES BOTTOM
HU74UE00000051A HU171692B (en) 1973-10-26 1974-07-24 Refractory gas penetrating closing device for bottom-pouring ladle
ES431365A ES431365A1 (en) 1973-10-26 1974-10-25 Apparatus for introducing gas to hot metal in a bottom pour vessel

Applications Claiming Priority (1)

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US00409834A US3825241A (en) 1973-10-26 1973-10-26 Apparatus for introducing gas to hot metal in a bottom pour vessel

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US (1) US3825241A (en)
JP (1) JPS5761503B2 (en)
AR (1) AR201777A1 (en)
AT (1) AT336819B (en)
BE (1) BE816782A (en)
BR (1) BR7405658D0 (en)
CA (1) CA1014717A (en)
DE (1) DE2428120C3 (en)
DK (1) DK139343B (en)
ES (1) ES431365A1 (en)
FI (1) FI207374A (en)
FR (1) FR2248898B1 (en)
GB (1) GB1428644A (en)
HU (1) HU171692B (en)
IN (1) IN139602B (en)
IT (1) IT1016536B (en)
NL (1) NL176842C (en)
NO (1) NO742356L (en)
RO (1) RO65032A (en)
TR (1) TR18380A (en)
YU (1) YU36881B (en)
ZA (1) ZA743427B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003561A (en) * 1973-11-23 1977-01-18 United States Steel Corporation Pouring of metals
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
US4365731A (en) * 1977-01-27 1982-12-28 Didier-Werke, A.G. Refractory structures
EP0166147A1 (en) * 1984-05-11 1986-01-02 Usx Engineers And Consultants, Inc. Teeming apparatus and method
GB2239698A (en) * 1990-01-04 1991-07-10 Radex Heraklith Lubricated refractory ceramic member

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1575601A (en) * 1976-01-22 1980-09-24 Didier Werke Ag Refractory structures for outlet valves for metallurgical vessels
JPS53149017U (en) * 1977-04-28 1978-11-24
JPS54158331A (en) * 1978-06-05 1979-12-14 Aikoh Co Tundish for continuous steel casting
NL187197C (en) * 1978-09-25 1991-07-01 Uss Eng & Consult DEVICE FOR CONTROLLING THE FLOW OF LIQUID METAL.
SE8106056L (en) * 1981-05-27 1982-11-28 Aikoh Co POROS PLASTIC FOR CASTLE METAL BOILER
JPS59150656A (en) * 1983-02-16 1984-08-28 Toshiba Ceramics Co Ltd Sliding nozzle device
JPS6099462A (en) * 1983-11-02 1985-06-03 Toshiba Ceramics Co Ltd Device for discharging molten metal
DE3714680A1 (en) * 1987-05-02 1988-11-17 Didier Werke Ag FIRE-RESISTANT WEAR PARTS FOR SPOUT CLOSURES
DE102004057381A1 (en) * 2004-11-26 2006-06-01 Heraeus Electro-Nite International N.V. Method for controlling the flow and bottom outlet for a metallurgical vessel
RS54320B1 (en) * 2013-09-10 2016-02-29 Refractory Intellectual Property Gmbh & Co. Kg Ladle bottom and ladle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7149261U (en) * 1973-01-18 Stoecker & Kunz Gmbh Spout for pouring ladles, especially the tundish in continuous casting plants, for pouring steel melts, primarily aluminum-calmed steel melts
FR1543169A (en) * 1964-02-06 1900-01-01 Capillary tube nozzle
DE1508263B1 (en) * 1966-02-21 1970-10-22 Reisholz Stahl & Roehrenwerk Device for purge gas treatment of metal, preferably steel melts
US3465810A (en) * 1967-12-04 1969-09-09 Sylvester Enterprises Inc Apparatus for casting metal
DE1910707C3 (en) * 1969-03-03 1982-12-16 6200 Wiesbaden Didier-Werke Ag Bottom slide closure for the pouring opening of vessels containing molten metal and a method for operating the same
US3615086A (en) * 1969-06-20 1971-10-26 David A Jepson Apparatus for stirring molten metal
US3581948A (en) * 1969-08-11 1971-06-01 Interstop Ag Sliding gate of a casting ladle for pouring liquid metals
US3684267A (en) * 1970-01-12 1972-08-15 United States Steel Corp Apparatus for introducing gas to hot metal in a bottom-pour vessel
AU2485271A (en) * 1970-06-23 1972-08-03 Japan Special Steel Co., Ltd A method for opening a nozzle hole ina sliding nozzle assembly fora molten metal ladle anda sliding assembly having nozzle hole opening means

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003561A (en) * 1973-11-23 1977-01-18 United States Steel Corporation Pouring of metals
US4365731A (en) * 1977-01-27 1982-12-28 Didier-Werke, A.G. Refractory structures
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
EP0166147A1 (en) * 1984-05-11 1986-01-02 Usx Engineers And Consultants, Inc. Teeming apparatus and method
US4641768A (en) * 1984-05-11 1987-02-10 Uss Engineers And Consultants, Inc. Teeming apparatus and method
GB2239698A (en) * 1990-01-04 1991-07-10 Radex Heraklith Lubricated refractory ceramic member
GB2239698B (en) * 1990-01-04 1993-09-29 Radex Heraklith Refractory ceramic member

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NL176842C (en) 1985-06-17
BR7405658D0 (en) 1975-08-05
CA1014717A (en) 1977-08-02
DK139343C (en) 1979-07-16
AU6989574A (en) 1975-12-11
FR2248898A1 (en) 1975-05-23
DE2428120B2 (en) 1977-12-01
RO65032A (en) 1979-08-15
FI207374A (en) 1975-04-27
DK378074A (en) 1975-06-23
TR18380A (en) 1977-05-01
YU182174A (en) 1982-06-18
BE816782A (en) 1974-12-24
YU36881B (en) 1984-08-31
ES431365A1 (en) 1976-11-01
IN139602B (en) 1976-07-10
JPS5761503B2 (en) 1982-12-24
JPS5073828A (en) 1975-06-18
NL7407620A (en) 1975-04-29
IT1016536B (en) 1977-06-20
ATA550474A (en) 1976-09-15
DK139343B (en) 1979-02-05
DE2428120A1 (en) 1975-04-30
FR2248898B1 (en) 1980-08-01
DE2428120C3 (en) 1982-10-21
AT336819B (en) 1977-05-25
NO742356L (en) 1975-05-26
HU171692B (en) 1978-02-28
GB1428644A (en) 1976-03-17
AR201777A1 (en) 1975-04-15
ZA743427B (en) 1975-05-28

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