US2784961A - Metal container adapted to receive high-melting point liquid metals - Google Patents

Metal container adapted to receive high-melting point liquid metals Download PDF

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Publication number
US2784961A
US2784961A US472978A US47297854A US2784961A US 2784961 A US2784961 A US 2784961A US 472978 A US472978 A US 472978A US 47297854 A US47297854 A US 47297854A US 2784961 A US2784961 A US 2784961A
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United States
Prior art keywords
metal
container
liquid
vessel
shield
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US472978A
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English (en)
Inventor
Coupette Werner
Sickbert Adolf
Westib Rudolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leybold Hochvakuum Anlagen GmbH
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Leybold Hochvakuum Anlagen GmbH
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
    • 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
    • B22D41/08—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like for bottom pouring

Definitions

  • a vessel which, on the one hand, is adapted to be evacuated, and which, on the other hand, is provided with means for introducing gas.
  • the molten metal is poured into the evacuated vessel through a hole in the lid thereof, and to this end a pouring ladle with a discharge hole in its bottom is placed on the lid of the evacuated vessel, so that the liquid metal can be transferred from the pouring ladle into the evacuated vessel.
  • the pouring ladle rests on the lid of the evacuated vessel, and the seat of the pouring ladle is air-tightly sealed in order to prevent air from passing into the evacuated vessel, or gas from escaping into the atmosphere.
  • the pouring ladle is formed by a container suited to receive the high-melting-point liquid metal, and it consists to this end of an outer metal shell provided with a lining of refractory material, and a nozzle is provided in the bottom of the container.
  • the nozzle is formed by a body of ceramic material with a central bore therein, and it is inserted into the refractory lining and projects out of the metal shell.
  • a liquid-metal container suited to receive high-melting-point liquid metal which comprises an outer metal shell, an interior lining for the metal shell which lining consists of a refractory material, a body of ceramic material inserted into the bottom of the said interior lining and projecting through the outer metal shell which body has an opening formed therein, is characterised in that a shield consisting of sheet metal is arranged so as to surround the said ceramic body and has two rims, the one rim being connected by welding to the inner face of the metal shell while the other rim projects into the interior of the container so as to extend into the liquid metal when the liquid-metal container is in operation.
  • the air or the gas is stopped from passing through the small leakage channels, and the process ottreatingthe metal can becontrolledin a more reliable manner than hitherto.
  • Fig. 1 represents a metal container which rests on the lid of an evacuated vessel suited for a vacuum treatment of the liquid metal
  • Fig. 2 shows a construction of the shield which surrounds the ceramic body in the bottom of the refractory interior lining
  • FIGs. 3 and 4 illustrate on an enlarged scale two details of the arrangement according to Fig. 2, and
  • Fig. 5 represents another embodiment of the invention.
  • Fig. 1 indicates the application of the invention to a metal container with a refractory interior lining (both shown in section), the metal container resting on a vacuum vessel.
  • the metal container 10 consists of a metal shell 11 and of a refractory interior lining 12 consisting of a ceramic material, for instance fire-brick.
  • a body 13 of ceramic material, having a nozzle 14, is in serted into the bottom of the interior lining l2 and into the bottom of the metal shell 11.
  • a so called stopper rod 15, which is adapted to be moved in a vertical direction, serves for closing the said nozzle.
  • the whole metal container 10 rests on the vacuum vessel l7, the seat being sealed by means of a suitable sealing ring to.
  • the lid 18 of the vacuum vessel has an opening 19 through which the liquid metal jet can pass.
  • the lid 18 is air-tightly connected with the vessel 20 .by means of another ring-shaped seal 21.
  • a pipe 22 opens which leads to a vacuum pump and comprises a valve 23.
  • Another pipe 24 opens into the lateral wall of the evacuated vessel 20 to which a pressure measuring device or a vacuum measuring device 25 of suitable construction is connected and which also is equipped with a valve 26.
  • the pipe 24 leads through the valve 26 to a reservoir for the desired gas.
  • a conventional pouring ladle 28 rests upon a stone fioor 27 within the vacuum vessel 20.
  • the vacuum vessel 17 is evacuated through the pipe 22 by the vacuum pump so that any gases escaping from the liquid steel are withdrawn by the vacuum pump. in this case the valve 26 is closed.
  • the pipe 24 may also be used for a comparatively quick and complete removal of gases, which escape from the liquid steel when the latter solidifies within the pouring ladle 28, in such a manner that air or a suitable gas is supplied into the vessel 17 through the pipe 24 and is again withdrawn through the pipe 22 by the vacuum pump.
  • FIG. 2 shows a section of apart of the bottom of the metal shell ll of the container 10, and also the refractory interior lining l2 resting on the bottom 11, and finally the hereinbefore mentioned ceramic body 13, which is inserted into the interior lining and into the bottom.
  • This ceramic body which may also be made of fire-brick, is provided with the hereinbefore mentioned opening 14 into which another ceramic body 29 is inserted which has a channel 3%) which is adapted to be closed by the rod 15 shown in Fig. l.
  • the body 29 with its channel 30 is held within the body 13 by means of a ring 31 which is connected to the bottom it by means of screws.
  • a shield 32 consisting of thin sheet metal is arranged according to the invention so that it surrounds the ceramic body 13, which shield is connected by welding at its lower rim with the bottom 11 and extends with its upper rim into the liquid metal.
  • This shield 32 prevents not only the penetration of air into the vacuum vessel 17 along the path hereinbefore mentioned, but it also prevents the entry into the vacuum vessel of any air which may penetrate by diffusion through the material of the refractory interior lining 12 and through through the wall of the ceramic body 13 as well as through the wall of the ceramic body 29 into the channel 311.
  • FIG. 3 The portion of Fig. 2 surrounded by a circle 33, is represented on an enlarged scale in Fig. 3.
  • This figure shows again the refractory interior lining 12, the ceramic body 13 and the shield 32, and it can be seen that the interspace between the shield 32, the interior lining 12 and the ceramic body 13 is filled with a refractory mortar 34.
  • Fig. 4 The portion of Fig. 2, surrounded by a circle 35, is represented on an enlarged scale in Fig. 4, which shows again the interior lining 12, the ceramic body 13, the screening surface 32, and the refractory mortar 34, and indicates that the lower rim of the shield is welded to the bottom 11 of the metal container by means of a sheet metal ring 36 which has a greater thickness than the sheet metal 32.
  • the welding points are marked by 37 and 38.
  • the evacuated vessel 17 and the seal 16 are represented only schematically, and the metal container has the form of a conventional pouring ladle. Also in this case the metal container consists of an outer shell 11 and of an interior refractory lining 12. The ceramic body 13 and the rod have not been shown, since they are not required for the explanation of the construction of the sheet metal shield.
  • the sheet metal shield may be given, as represented at 39, the shape of a sheet metal ring, the outer rim of which being welded to the internal face of the metal wall 11, whilst its outer rim projects into the liquid metal, the level of which is indicated by a chain dotted line 40.
  • a'sheet metal ring 41 the inner rim of which projects into the liquid metal, may be connected by welding to a stronger sheet metal ring 42, and the latter may be connected by welding to the inner face of the metal wall 11, i. e. a construction may be adopted similar to that shown in Fig. 4.
  • the ring 39 and the ring 41 must be disposed always below the level 49 of the liquid metal similarly as the sheet metal 32 of Pig. 2 in order to prevent air from entering into the vacuum Vessel 17 as well as a loss of gas which it is desired to introduce into the liquid metal.
  • a liquid-metal container suited to receive highmelting-point liquid metal comprising an outer metal shell having an interior lining of refractory material, a body of ceramic material inserted into the bottom of the said interior lining and projecting through the outer metal shell which body has an opening formed therein, and a shield consisting of sheet metal which surrounds the said ceramic body and has two rims, one rim of which is connected by welding to the inner face of the metal shell, while the other rim projects into the space of the container reserved for the liquid metal so that said metal shield will extend into the liquid metal when said container is in operation.
  • An arrangement for subjecting liquid metal to a gas-treatment comprising a vessel air-tightly closed by a lid, which vessel is adapted to be evacuated, is provided with means for the supply of gas, and has a hole in its lid and suited to receive high-melting point liquid metal; and a liquid metal container comprising an outer metal shell having an interior lining of refractory material, a body of ceramic material having an opening formed therein, and inserted into the bottom of the said interior lining and projecting through said outer metal shell and a shield consisting of sheet metal which surrounds the said ceramic body and has two rims, one rim of which is connected by welding to the inner face of the metal shell, while the other rim projects into the space of the container reserved for the liquid metal so that said metal shield will extend into the liquid metal when said container is in operation; said liquid-metal container being placed above the lid of the vessel so that the opening in the said ceramic body comes to lie above the said hole in the lid, and means being provided for air-tightly connecting the bottom of the said

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
US472978A 1953-12-05 1954-12-03 Metal container adapted to receive high-melting point liquid metals Expired - Lifetime US2784961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE533813X 1953-12-05

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US (1) US2784961A (nl)
BE (1) BE533813A (nl)
GB (1) GB766400A (nl)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906521A (en) * 1956-03-16 1959-09-29 Hoerder Huettenunion Ag Sealing means for vacuum vessels
US2965937A (en) * 1957-02-21 1960-12-27 United States Steel Corp Apparatus for vacuum casting molten metal
US2981532A (en) * 1956-06-21 1961-04-25 Mcdowell Company Inc Means for preventing waste preferential air flow at side walls of sintering machine pallets
US3071458A (en) * 1960-05-09 1963-01-01 Finkl & Sons Co Method of adding charge material to molten metal under vacuum
US3084038A (en) * 1959-11-25 1963-04-02 Finkl & Sons Co Method and apparatus for combined stream and ladle degassing
US3182359A (en) * 1961-12-27 1965-05-11 Gero Metallurg Corp Vacuum casting apparatus
US3226224A (en) * 1961-06-09 1965-12-28 Bochumer Ver Fur Gusstahlfabri Process for vacuum degasification of metal
US3292915A (en) * 1959-11-25 1966-12-20 Finkel & Sons Company A Apparatus for degassing molten metal
US3679105A (en) * 1970-03-05 1972-07-25 Babcock & Wilcox Co Nozzle arrangement for molten metal container vessel
FR2200074A1 (nl) * 1972-09-27 1974-04-19 Maximilianshuette Eisenwerk
US5645121A (en) * 1996-01-05 1997-07-08 National Steel Corporation Method of continuous casting using sealed tundish and improved tundish seal

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1674947A (en) * 1925-12-10 1928-06-26 New Jersey Zinc Co Metallurgical furnace
US1889426A (en) * 1931-06-26 1932-11-29 Copper Deoxidation Corp Vessel for fire refining
US2134248A (en) * 1935-02-14 1938-10-25 Godenne Jean Furnace lining, especially of highly heated metallurgical furnaces and particularly to linings of furnace gas ports
US2134785A (en) * 1935-10-02 1938-11-01 Modern Equipment Co Art of manufacturing ladles
US2230141A (en) * 1939-10-24 1941-01-28 Gen Refractories Co Rotary kiln lining
US2253421A (en) * 1938-09-20 1941-08-19 Mare Baltzar E L De Method and apparatus for deoxidizing and degasifying liquid steel
US2416490A (en) * 1943-04-13 1947-02-25 Phillips Petroleum Co Catalyst chamber insulation
US2462699A (en) * 1944-12-29 1949-02-22 Standard Oil Dev Co Fabrication of conduits for corrosive fluids
DE866231C (de) * 1951-04-29 1953-02-09 Gussstahlwerk Bochumer Ver Ag Vorrichtung zum Entgasen und Giessen von Stahl
US2665895A (en) * 1953-04-30 1954-01-12 Amsler Morton Corp Soaking pit curb wall with fixed elevation
FR1056554A (fr) * 1951-06-02 1954-03-01 Gussstahlwerk Bochumer Ver Ag Dispositif pour le dégazage et la coulée de l'acier

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1674947A (en) * 1925-12-10 1928-06-26 New Jersey Zinc Co Metallurgical furnace
US1889426A (en) * 1931-06-26 1932-11-29 Copper Deoxidation Corp Vessel for fire refining
US2134248A (en) * 1935-02-14 1938-10-25 Godenne Jean Furnace lining, especially of highly heated metallurgical furnaces and particularly to linings of furnace gas ports
US2134785A (en) * 1935-10-02 1938-11-01 Modern Equipment Co Art of manufacturing ladles
US2253421A (en) * 1938-09-20 1941-08-19 Mare Baltzar E L De Method and apparatus for deoxidizing and degasifying liquid steel
US2230141A (en) * 1939-10-24 1941-01-28 Gen Refractories Co Rotary kiln lining
US2416490A (en) * 1943-04-13 1947-02-25 Phillips Petroleum Co Catalyst chamber insulation
US2462699A (en) * 1944-12-29 1949-02-22 Standard Oil Dev Co Fabrication of conduits for corrosive fluids
DE866231C (de) * 1951-04-29 1953-02-09 Gussstahlwerk Bochumer Ver Ag Vorrichtung zum Entgasen und Giessen von Stahl
FR1056554A (fr) * 1951-06-02 1954-03-01 Gussstahlwerk Bochumer Ver Ag Dispositif pour le dégazage et la coulée de l'acier
US2665895A (en) * 1953-04-30 1954-01-12 Amsler Morton Corp Soaking pit curb wall with fixed elevation

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906521A (en) * 1956-03-16 1959-09-29 Hoerder Huettenunion Ag Sealing means for vacuum vessels
US2981532A (en) * 1956-06-21 1961-04-25 Mcdowell Company Inc Means for preventing waste preferential air flow at side walls of sintering machine pallets
US2965937A (en) * 1957-02-21 1960-12-27 United States Steel Corp Apparatus for vacuum casting molten metal
US3084038A (en) * 1959-11-25 1963-04-02 Finkl & Sons Co Method and apparatus for combined stream and ladle degassing
US3292915A (en) * 1959-11-25 1966-12-20 Finkel & Sons Company A Apparatus for degassing molten metal
US3071458A (en) * 1960-05-09 1963-01-01 Finkl & Sons Co Method of adding charge material to molten metal under vacuum
US3226224A (en) * 1961-06-09 1965-12-28 Bochumer Ver Fur Gusstahlfabri Process for vacuum degasification of metal
US3182359A (en) * 1961-12-27 1965-05-11 Gero Metallurg Corp Vacuum casting apparatus
US3679105A (en) * 1970-03-05 1972-07-25 Babcock & Wilcox Co Nozzle arrangement for molten metal container vessel
FR2200074A1 (nl) * 1972-09-27 1974-04-19 Maximilianshuette Eisenwerk
US5645121A (en) * 1996-01-05 1997-07-08 National Steel Corporation Method of continuous casting using sealed tundish and improved tundish seal

Also Published As

Publication number Publication date
GB766400A (en) 1957-01-23
BE533813A (nl)

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