US3384150A - Continuous casting with controlled feeding from predetermined supply - Google Patents

Continuous casting with controlled feeding from predetermined supply Download PDF

Info

Publication number
US3384150A
US3384150A US506619A US50661965A US3384150A US 3384150 A US3384150 A US 3384150A US 506619 A US506619 A US 506619A US 50661965 A US50661965 A US 50661965A US 3384150 A US3384150 A US 3384150A
Authority
US
United States
Prior art keywords
reservoir
tundish
pressure
container
level
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US506619A
Inventor
Newsome David Russell
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.)
Davy Loewy Ltd
Original Assignee
Davy Loewy Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Davy Loewy Ltd filed Critical Davy Loewy Ltd
Application granted granted Critical
Publication of US3384150A publication Critical patent/US3384150A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/064—Accessories therefor for supplying molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • B22D11/186—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by using electric, magnetic, sonic or ultrasonic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • B22D11/201—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level
    • 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
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7303—Control of both inflow and outflow of tank

Definitions

  • apparatus for feed-ing owable material from a container holding a predetermined amount of said material to Ia utilisation device
  • said apparatus comprising a reservoir for said material connected by ow passages to said container and said device, means for applying gas under pressure to cause said material to llow from said container into said reservoir, means for applying gas under pressure to said reservoir to cause said material to ow from said reservoir to said utilisation device, yand means for regulating the gas pressure applied to lboth said container and reservoir in dependence upon the level of material in said reservoir in a sense to maintain said level substantially constant.
  • the container may comprise a holding vessel for molten metal located in a pressure vessel, and connected to a tundish serving as the reservoir, and a common source of pressurised gas may serve for supplying pressurised gas to the pressure vessel to force metal from the holding vessel into the tundish and for providing a pressure in the tundish to force molten metal from the tundish to a continuous casting machine.
  • the tundish and holding vessel are preferably made of refractory or other insulating material and include heating means vfor controlling the temperature of the molten metal.
  • the holding vessel is a mains frequency induction furnace.
  • gas is supplied to the pressure vessel at a substantially constantly increasing pressure to compensate for the reduction in heat in the holding vessel as the metal is lfed out, and the rate of increase of the pressure is automatically controlled to keep the level of molten metal in the tundish constant. If the level of metal in the tundish is kept constant .and the pressure in the tundish is kept constant the rate of flow from the tundish to a launder supplying the continuous casting machine should also -be constant.
  • a nucleonic level detector in the tundish may be used as a final control both on the pressure in the pressure vessel and in the tundish.
  • FIGURE 1 is a vertical section through a molten metal holding vessel and tundish for feeding a continuous casting machine
  • FIGURE 2 shows a diagrammatic control circuit for the metal lfeeding apparatus of FIGURE 1.
  • a body of molten lmetal 12 is contained in a holding vessel 13, in the form of a mains frequency induction furnace, heated by coil 13a which is enclosed in a pressure vessel 14.
  • the pressure vessel is connected by line 15 through variable throttle 15 to a pressurised gas reservoir 17.
  • the pressure vessel also has an outlet to atmosphere through a variable throttle 18.
  • the outlet 29 connects with the inlet of a launder30 which is arranged to direct the metal ow through before feeding it to a continuous casting machine 31.
  • the casting machine takes the form of a grooved -rotatable wheel 32 which co-operates with an endless moving band which seals the groove. Itshould be understood however that the casting machine may be of -other forms such as a conventional open-ended reciprocating mould.
  • a nucleonic level detector (not sho-wn) which is arranged to signal the metal level in the tundish to a level device signal transducer 33, which in turn is connected 'by a valve controller 34 to the valves 25 and 26 controlling the pressure in the tundish and by a valve controller 35 connected to the throttle 16 and 18 to control the pressure in the pressure vessel 14.
  • the level device signal transducer is also connected -to the water pump control 36 of the casting machine and to the motor control 37 of the casting mach-ine to control the speed of casting operation of the -machine and the rate of cooling.
  • the lid 38 of the tundish is removable and the upper section 40 of the pipe 21 is also detachable to allow metal in the tundish to ow back into the holding vessel 13 at the end of a casting operation.
  • the holding vessel 13 is filled with molten metal, which is maintained at the desired casting temperature by induction heating.
  • the apparatus is suitable for casting a variety of metals such as ferrous metals or aluminum.
  • the metal temperature will be maintained between 1550 C. and 1600 C. when the holding vessel is -full the pressure vessel is pressurised to force metal up the pipe 21 into the tundish.
  • the automatic control can be switched on. This applies a small pressure in the tundish forcing the metal up the passage 27 into the launder and into the casting machine.
  • the pressure in the pressure vessel is continuously increased at a substantial constant rate to keep a constant flow from the holding vessel to the tundish.
  • the nufcleonic level detector detects any variation in level and feeds back to the throttles 16 and 25 to keep the flow into the casting machine constant. Towards the end of the cast when the holding vessel is nearly empty the pressure is maintained constant in the holding vessel and increased in the tundish to discharge as much as possible into the casting machine. The pressures are then released, the machine being stopped and the tundish emptied by pulling out the section 40 of the inlet pipe.
  • the pressure in the holding vessel was initially brought to 25 p.s.i., and during casting was increased at the rate of 0.4 p.s.i. per minute while the pressure in the tundish was held substantially constant at less than 5 p.s.i.
  • Apparatus for continuously feeding flowable material from a container holding a predetermined amount of said material to a device for imparting a shape to said material comprising a reservoir for said material connected by flow passages to said container and said device, means for applying gas under pressure to cause said material to ilow continuously from said container into said reservoir, means for applying gas under pressure to said reservoir to cause said material to ow continuously from said reservoir to said device, and means for regulating the gas pressure applied to both said container and reservoir in dependence upon the level of material in said reservoir to maintain said level substantially constant.
  • Apparatus as claimed in claim 1 for feeding molten material wherein said container and reservoir are provided with means for maintaining said material in molten state.
  • Apparatus as claimed in claim 1 including a level detector associated with said reservoir and arranged to provide signals indicative of the material level in said reservoir and wherein said regulating means is responsive to the signals from said detector to regulate said pressures.
  • Apparatus as claimed in claim 4 including means responsive to signals from said detector to regulate the speed of operation of said device to maintain said level constant.
  • Apparatus as claimed in claim 1 for feeding molten material wherein said container is constituted by a furnace enclosed in a Ipressure vessel and said regulating means is Iarranged to control the inllow and outflow of pressurised gas into and from said vessel.

Description

May 2l, QSS D, R, NEWSOME 3,384,50
CONTINUOUS CASTING WITH CONTROLLED FEEDING FROM PREDETERMINED SUPPLY Filed Oct. 25, 1965 2 Sheets-Sheet l INNEN-IOR D. R. NEwsomE Awhmmvlludrlmbols AT To RN aYS CAST/NG 2 Sheets-Sheet 9,
TUND/SH NEWSOME INVENTOR D. R NEwsoME ATTORNEY:
D. R. CONTINUOUS CASTING WITH CONTROLLED FEEDING FROM PREDETERMINED SUPPLY May 21, 1968 Filed oct. 25, 1965 T0 ATMOSPHERE m C Il.. w Q/Q W f RU. MWL( lll-mm A/AU 0m WP MC n ITI l E W L Dn 5 E H 3 l w EL M E 3./WMDIII. [IVM P V DNS I R rlaN WT 9.8M M rlllll' lllll In T v C 6 L- p l N 5 m rlvll 2 4 L lll 3/ ,Vcm. lll.lll...| l-IIIII. lllllll .Il \IIMH R :ili: VW C m V Dn m y T 4I 2 n\ M A TM OSPHE RE United States Patent O 3,384,150 CONTINUOUS CASTING WITH CONTROLLED FEEDING FROM PREDETERMINED SUPPLY David Russell Newsome, Sheffield, England, assignor to Davy and' United Engineering Company, Limited, Sheffield, Yorkshire, England Filed Oct. 25, 1965, Ser. No. 506,619 Claims priority, application Great Britain, Oct. 26, 1964, 43,586/64 8 Claims. (Cl. 164-155) This invention relates to apparatus for feeding flowa-ble material particularly suited to feeding molten metal to a continuous casting machine.
According to the invention there is provided apparatus for feed-ing owable material from a container holding a predetermined amount of said material to Ia utilisation device said apparatus comprising a reservoir for said material connected by ow passages to said container and said device, means for applying gas under pressure to cause said material to llow from said container into said reservoir, means for applying gas under pressure to said reservoir to cause said material to ow from said reservoir to said utilisation device, yand means for regulating the gas pressure applied to lboth said container and reservoir in dependence upon the level of material in said reservoir in a sense to maintain said level substantially constant.
In the application of the invention to -feeding molten metal to a continuous casting machine the container may comprise a holding vessel for molten metal located in a pressure vessel, and connected to a tundish serving as the reservoir, and a common source of pressurised gas may serve for supplying pressurised gas to the pressure vessel to force metal from the holding vessel into the tundish and for providing a pressure in the tundish to force molten metal from the tundish to a continuous casting machine.
The tundish and holding vessel are preferably made of refractory or other insulating material and include heating means vfor controlling the temperature of the molten metal. In a preferred form the holding vessel is a mains frequency induction furnace.
Preferably gas is supplied to the pressure vessel at a substantially constantly increasing pressure to compensate for the reduction in heat in the holding vessel as the metal is lfed out, and the rate of increase of the pressure is automatically controlled to keep the level of molten metal in the tundish constant. If the level of metal in the tundish is kept constant .and the pressure in the tundish is kept constant the rate of flow from the tundish to a launder supplying the continuous casting machine should also -be constant. A nucleonic level detector in the tundish may be used as a final control both on the pressure in the pressure vessel and in the tundish.
An embodiment `of apparatus, in accordance with the invention, will now be described, by way of example only, with reference to the drawings accompanying the provisional specification of which:
FIGURE 1 is a vertical section through a molten metal holding vessel and tundish for feeding a continuous casting machine, and
FIGURE 2 shows a diagrammatic control circuit for the metal lfeeding apparatus of FIGURE 1.
A body of molten lmetal 12 is contained in a holding vessel 13, in the form of a mains frequency induction furnace, heated by coil 13a which is enclosed in a pressure vessel 14. The pressure vessel is connected by line 15 through variable throttle 15 to a pressurised gas reservoir 17. The pressure vessel also has an outlet to atmosphere through a variable throttle 18.
Bolted to the top of the pressure vessel is a refractory lined tundish heated Iby coil 20a. A vertical pipe 21,
3,384,156 Patented May 21, 1968 ice made from high alumina brick or castable refractory, connects the holding vessel 13 and tundish 20; the lower end 22` of the pipe 21 is located just above the bottom of the holding vessel while the upper end 23 projects into the tundish above the working'level of molten metal therein. The tundish is connected by line 24 through a variable throttle 25 to the gas reservoir 17, and has an outlet to atmosphere through `a variable throttle 26. The outlet `f-rom the tundish is an inclined passage 27 having its entrance 28 below the working level -of molten metal in the tundish land its outlet 29 above that level. The outlet 29 connects with the inlet of a launder30 which is arranged to direct the metal ow through before feeding it to a continuous casting machine 31. In the embodiment shown the casting machine takes the form of a grooved -rotatable wheel 32 which co-operates with an endless moving band which seals the groove. Itshould be understood however that the casting machine may be of -other forms such as a conventional open-ended reciprocating mould. Located in the tundish is a nucleonic level detector (not sho-wn) which is arranged to signal the metal level in the tundish to a level device signal transducer 33, which in turn is connected 'by a valve controller 34 to the valves 25 and 26 controlling the pressure in the tundish and by a valve controller 35 connected to the throttle 16 and 18 to control the pressure in the pressure vessel 14. The level device signal transducer is also connected -to the water pump control 36 of the casting machine and to the motor control 37 of the casting mach-ine to control the speed of casting operation of the -machine and the rate of cooling.
The lid 38 of the tundish is removable and the upper section 40 of the pipe 21 is also detachable to allow metal in the tundish to ow back into the holding vessel 13 at the end of a casting operation.
In operation the holding vessel 13 is filled with molten metal, which is maintained at the desired casting temperature by induction heating. The apparatus is suitable for casting a variety of metals such as ferrous metals or aluminum. In the case of steel for example, the metal temperature will be maintained between 1550 C. and 1600 C. when the holding vessel is -full the pressure vessel is pressurised to force metal up the pipe 21 into the tundish. When the metal has reached a predetermined level in the tundish the automatic control can be switched on. This applies a small pressure in the tundish forcing the metal up the passage 27 into the launder and into the casting machine. The pressure in the pressure vessel is continuously increased at a substantial constant rate to keep a constant flow from the holding vessel to the tundish. The nufcleonic level detector detects any variation in level and feeds back to the throttles 16 and 25 to keep the flow into the casting machine constant. Towards the end of the cast when the holding vessel is nearly empty the pressure is maintained constant in the holding vessel and increased in the tundish to discharge as much as possible into the casting machine. The pressures are then released, the machine being stopped and the tundish emptied by pulling out the section 40 of the inlet pipe.
In one example, with a holding vessel capacity of six tons, a cast strip section 8 inches x 3A inches and a casting speed of 18 ft. per minute the pressure in the holding vessel was initially brought to 25 p.s.i., and during casting was increased at the rate of 0.4 p.s.i. per minute while the pressure in the tundish was held substantially constant at less than 5 p.s.i.
It will be seen that such a feeding device is very suitable for automatic control and in particular the iinal control is extremely near the casting machine. If it is necessary to stop the flow of metal to the casting machine at any time this can be done immediately by releasing the pressure in the tundish.
It will be appreciated that whilst described above in connection with the feeding of molten metal the invention is equally of application in feeding any flowable material.
I claim:
1. Apparatus for continuously feeding flowable material from a container holding a predetermined amount of said material to a device for imparting a shape to said material, said apparatus comprising a reservoir for said material connected by flow passages to said container and said device, means for applying gas under pressure to cause said material to ilow continuously from said container into said reservoir, means for applying gas under pressure to said reservoir to cause said material to ow continuously from said reservoir to said device, and means for regulating the gas pressure applied to both said container and reservoir in dependence upon the level of material in said reservoir to maintain said level substantially constant.
2. Apparatus as claimed in claim 1 wherein the means for applying gas under pressure to said container is arranged progressively to increase the pressure applied to compensate for the progressive reduction in head of material in the container as the material is fed out of it.
3. Apparatus as claimed in claim 1 for feeding molten material wherein said container and reservoir are provided with means for maintaining said material in molten state.
4. Apparatus as claimed in claim 1 including a level detector associated with said reservoir and arranged to provide signals indicative of the material level in said reservoir and wherein said regulating means is responsive to the signals from said detector to regulate said pressures.
S. Apparatus as claimed in claim 4 including means responsive to signals from said detector to regulate the speed of operation of said device to maintain said level constant.
6. Apparatus as claimed in claim 1 for feeding molten material wherein said container is constituted by a furnace enclosed in a Ipressure vessel and said regulating means is Iarranged to control the inllow and outflow of pressurised gas into and from said vessel.
7. Apparatus as claimed in claim 1 for feeding molten material lwherein said reservoir is constituted by a heated tundish and said regulating means is arranged to control the inow and outflow of pressurised gas into and from said tundish.
8. Apparatus as claimed in claim 'i wherein said device is a continuous casting machine.
References Cited UNITED STATES PATENTS 3,050,794 8/ 1962 Holz 266-38 3,187,394 6/1965 Tama et al 164-155 3,191,247 6/ 1965 Holz 266-38 3,287,773 11/1966 Woodburn 164-155 3,310,850 3/ 1967 Armbruster 164-281 I. SPENCER OVERHOLSER, Primary Examiner.
R. D. BALDWIN, Assistant Examiner.

Claims (1)

1. APPARATUS FOR CONTINUOUSLY FEEDING FLOWABLE MATERIAL FROM A CONTAINER HOLDING A PREDETERMINED AMOUNT OF SAID MATERIAL TO A DEVICE FOR IMPARTING A SHAPE TO SAID MATERIAL, SAID APPARATUS COMPRISING A RESERVOIR FOR SAID MATERIAL CONNECTED BY FLOW PASSAGES TO SAID CONTAINER AND SAID DEVICE, MEANS FOR APPLYING GAS UNDER PRESSURE TO CAUSE SAID MATERIAL TO FLOW CONTINUOUSLY FROM SAID CONTAINER INTO SAID RESERVOIR, MEANS FOR APPLYING GAS UNDER PRESSURE TO SAID RESERVOIR TO CAUSE SAID MATERIAL TO FLOW CONTINUOUSLY FROM SAID RESERVOIR TO SAID DEVICE, AND MEANS FOR REGULATING THE GAS PRESSURE APPLIED TO BOTH SAID CONTAINER AND RESERVOIR IN DEPENDENCE UPON THE LEVEL OF MATERIAL IN SAID RESERVOIR TO MAINTAIN SAID LEVEL SUBSTANTIALLY CONSTANT.
US506619A 1964-10-26 1965-10-25 Continuous casting with controlled feeding from predetermined supply Expired - Lifetime US3384150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB43586/64A GB1063840A (en) 1964-10-26 1964-10-26 Apparatus for feeding flowable material

Publications (1)

Publication Number Publication Date
US3384150A true US3384150A (en) 1968-05-21

Family

ID=10429412

Family Applications (1)

Application Number Title Priority Date Filing Date
US506619A Expired - Lifetime US3384150A (en) 1964-10-26 1965-10-25 Continuous casting with controlled feeding from predetermined supply

Country Status (3)

Country Link
US (1) US3384150A (en)
DE (1) DE1483560A1 (en)
GB (1) GB1063840A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441261A (en) * 1966-03-11 1969-04-29 Ajax Magnethermic Corp Constant level holding furnaces
US3459254A (en) * 1966-12-27 1969-08-05 Amsted Ind Inc Pressure pouring control arrangement
US3471057A (en) * 1966-11-30 1969-10-07 Norsk Hydro Elektrish Kvaelsto Apparatus for ladling liquid metal
US3497196A (en) * 1966-08-10 1970-02-24 Hoerder Huettenunion Ag Device for introducing material into a degassing vessel for steel
US3504825A (en) * 1966-08-15 1970-04-07 Gen Motors Corp Pneumatic control of pressure pouring ladle
US3510345A (en) * 1967-11-01 1970-05-05 Gen Electric Apparatus and method for automatically controlling the molten metal bath level in a metallurgical process
US3718175A (en) * 1969-04-15 1973-02-27 Voest Ag Plant for continuous casting without deep casting stream penetration
US3729118A (en) * 1970-06-01 1973-04-24 Buhrer Erwin Device for controlling the level of liquid metal in a casting container
US3777801A (en) * 1970-08-28 1973-12-11 Gravicast Patent Gmbh Casting apparatus
US3844453A (en) * 1973-01-05 1974-10-29 Modern Equipment Co Apparatus and method for melting and pouring metal
US3991263A (en) * 1973-09-03 1976-11-09 Allmanna Svenska Elektriska Aktiebolaget Means for tapping
US4010876A (en) * 1974-04-09 1977-03-08 Georg Fischer Aktiengesellschaft Arrangement for the delivery of measured quantities of the molten contents of a storage vessel
EP0244254A1 (en) * 1986-05-01 1987-11-04 Alform Alloys Limited Extrusion of metals
US5381854A (en) * 1993-01-29 1995-01-17 Her Majesty In Right Of Canada As Represented By The Minister Of Energy, Mines And Resoruces Pneumatic flow control of liquid metals
US5515906A (en) * 1993-01-29 1996-05-14 Her Majesty In Right Of Canada As Represented By The Minister Of Energy, Mines And Resources Pneumatic flow control of liquid metals

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050794A (en) * 1959-09-08 1962-08-28 Lindberg Eng Co Furnace ladling apparatus
US3187394A (en) * 1961-09-18 1965-06-08 Ajax Magnethermic Corp Apparatus for pouring molten metal into molds
US3191247A (en) * 1959-09-08 1965-06-29 Lindberg Engineering Co Furnace ladling apparatus
US3287773A (en) * 1963-12-03 1966-11-29 Amsted Ind Inc Method of level control for continuous casting
US3310850A (en) * 1963-12-13 1967-03-28 Rheinstahl Huettenwerke Ag Method and apparatus for degassing and casting metals in a vacuum

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050794A (en) * 1959-09-08 1962-08-28 Lindberg Eng Co Furnace ladling apparatus
US3191247A (en) * 1959-09-08 1965-06-29 Lindberg Engineering Co Furnace ladling apparatus
US3187394A (en) * 1961-09-18 1965-06-08 Ajax Magnethermic Corp Apparatus for pouring molten metal into molds
US3287773A (en) * 1963-12-03 1966-11-29 Amsted Ind Inc Method of level control for continuous casting
US3310850A (en) * 1963-12-13 1967-03-28 Rheinstahl Huettenwerke Ag Method and apparatus for degassing and casting metals in a vacuum

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441261A (en) * 1966-03-11 1969-04-29 Ajax Magnethermic Corp Constant level holding furnaces
US3497196A (en) * 1966-08-10 1970-02-24 Hoerder Huettenunion Ag Device for introducing material into a degassing vessel for steel
US3504825A (en) * 1966-08-15 1970-04-07 Gen Motors Corp Pneumatic control of pressure pouring ladle
US3471057A (en) * 1966-11-30 1969-10-07 Norsk Hydro Elektrish Kvaelsto Apparatus for ladling liquid metal
US3459254A (en) * 1966-12-27 1969-08-05 Amsted Ind Inc Pressure pouring control arrangement
US3510345A (en) * 1967-11-01 1970-05-05 Gen Electric Apparatus and method for automatically controlling the molten metal bath level in a metallurgical process
US3718175A (en) * 1969-04-15 1973-02-27 Voest Ag Plant for continuous casting without deep casting stream penetration
US3729118A (en) * 1970-06-01 1973-04-24 Buhrer Erwin Device for controlling the level of liquid metal in a casting container
US3777801A (en) * 1970-08-28 1973-12-11 Gravicast Patent Gmbh Casting apparatus
US3844453A (en) * 1973-01-05 1974-10-29 Modern Equipment Co Apparatus and method for melting and pouring metal
US3991263A (en) * 1973-09-03 1976-11-09 Allmanna Svenska Elektriska Aktiebolaget Means for tapping
US4010876A (en) * 1974-04-09 1977-03-08 Georg Fischer Aktiengesellschaft Arrangement for the delivery of measured quantities of the molten contents of a storage vessel
EP0244254A1 (en) * 1986-05-01 1987-11-04 Alform Alloys Limited Extrusion of metals
WO1987006508A1 (en) * 1986-05-01 1987-11-05 Alform Alloys Limited Extrusion of metals
US5381854A (en) * 1993-01-29 1995-01-17 Her Majesty In Right Of Canada As Represented By The Minister Of Energy, Mines And Resoruces Pneumatic flow control of liquid metals
US5515906A (en) * 1993-01-29 1996-05-14 Her Majesty In Right Of Canada As Represented By The Minister Of Energy, Mines And Resources Pneumatic flow control of liquid metals

Also Published As

Publication number Publication date
DE1483560A1 (en) 1969-09-18
GB1063840A (en) 1967-03-30

Similar Documents

Publication Publication Date Title
US3384150A (en) Continuous casting with controlled feeding from predetermined supply
US3200457A (en) Method of regulating the discharge of molten metal from ladles
US5411240A (en) Furnace for delivering a melt to a casting machine
EP0732980B1 (en) A casting apparatus and method
US2243425A (en) Casting of metals and/or metal alloys and more particularly to a method of maintaining a uniform rate of flow of the molten mass into the mold or chill
FI82620C (en) Pressure casting machine for metal parts containing possibly ceramic non-fibrous material
US3552478A (en) Method for starting and maintaining the supply of metal to a downward operating continuous casting mold
US3814170A (en) Apparatus for melting and casting material under pressure
US2772455A (en) Metal pouring apparatus for continuous casting
US770130A (en) Apparatus for casting bars or rods.
US5072779A (en) Continuous casting machine of a reduced height with immersed teeming nozzle
CA2078741A1 (en) Method and apparatus for the manufacture of a metal tape with approximate final dimensions
US2804664A (en) Casting apparatus
US4000771A (en) Method of and apparatus for continuous casting
US11654478B2 (en) Casting equipment
US5178203A (en) Apparatus for the countergravity casting of metals
US3467284A (en) Distributor for continuous casting machine
US3759309A (en) Method of and apparatus for cooling continuously cast metal
US2753220A (en) Apparatus for controlling the application of concrete in the lining of tunnels
RU97116515A (en) METHOD FOR PRODUCING THIN METAL LONG-DIMENSIONAL PRODUCTS AND DEVICE FOR ITS IMPLEMENTATION
US3211545A (en) Process and apparatus for vacuum degassing of metal
US1583248A (en) Process for bottom casting
US3828974A (en) Process for the emergency interruption of the flow of melt in a gravity casting plant
US3332474A (en) Apparatus and method for continuous vacuum degassing and casting of steel and other metals
US3648763A (en) Machine for centrifugally casting tubular metal bodies