US3865282A - Device for metering molten metal to consumer stations - Google Patents

Device for metering molten metal to consumer stations Download PDF

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Publication number
US3865282A
US3865282A US365745A US36574573A US3865282A US 3865282 A US3865282 A US 3865282A US 365745 A US365745 A US 365745A US 36574573 A US36574573 A US 36574573A US 3865282 A US3865282 A US 3865282A
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United States
Prior art keywords
melt
molten metal
opening
ladle
ladling
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
US365745A
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English (en)
Inventor
Sven Ivan Sieurin
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.)
Granges Essem AB
SPX Technologies Inc
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Granges Essem AB
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Publication of US3865282A publication Critical patent/US3865282A/en
Assigned to SWEDISH FURNACE AB, P.O. BOX 134, S-73401 HALLSTAHAMMAR, SWEDEN, A CORP. OF SWEDEN reassignment SWEDISH FURNACE AB, P.O. BOX 134, S-73401 HALLSTAHAMMAR, SWEDEN, A CORP. OF SWEDEN ASSIGNS NUNC PRO TUNC Assignors: GRANGES ALUMINIUM AB, PREVIOUSLY GRANGES ESSEM AB
Assigned to MPH INDUSTRIES INC., P.O. BOX 131, RIVERSIDE, MICHIGAN 49084, A CORP. OF MICHIGAN reassignment MPH INDUSTRIES INC., P.O. BOX 131, RIVERSIDE, MICHIGAN 49084, A CORP. OF MICHIGAN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SWEDISH FURNACE AB
Assigned to SWEDISH FURNACE AB, P.O. BOX 134, S-73401 HALLSTAHAMMAR, SWEDEN, A CORP. OF SWEDEN reassignment SWEDISH FURNACE AB, P.O. BOX 134, S-73401 HALLSTAHAMMAR, SWEDEN, A CORP. OF SWEDEN ASSIGNS NUNC PRO TUNC Assignors: ELECTROLUX AUTOLIV AB, FORMERLY GRANGES WEDA AB
Assigned to AEROTRONIC ASSOCIATES, INC. reassignment AEROTRONIC ASSOCIATES, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MPH INDUSTRIES, INC.
Assigned to GENERAL SIGNAL TECHNOLOGY CORPORATION, A CORP OF DE reassignment GENERAL SIGNAL TECHNOLOGY CORPORATION, A CORP OF DE MERGER (SEE DOCUMENT FOR DETAILS). 12/19/90 Assignors: AEROTRONIC ASSOCIATES, INC.,
Assigned to GENERAL SIGNAL CORPORATION, A NY CORP. reassignment GENERAL SIGNAL CORPORATION, A NY CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GENERAL SIGNAL TECHNOLOGY CORPORATION
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
    • B22D39/00—Equipment for supplying molten metal in rations
    • B22D39/02—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume
    • B22D39/026—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume using a ladler
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/30—Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier

Definitions

  • ABSTRACT A device and method for metering molten metal to consumer stations are described.
  • the device comprises a ladling device which is arranged to pass into a bath of molten metal present in a container intended therefore, through an opening disposed in the container walls.
  • the ladle is arranged to fit snugly in the opening so as to shield the surface of the melt from the undesirable effect of the ambient atmosphere.
  • the present invention relates to a device for metering molten metal to consumer stations, for example casting apparatus constructed on the basis of the so-called cold chamber method, in which there is used a ladle or like device capable of being immersed in a melt in a storage container and which can be moved between a ladle filling station in the melt and a ladle emptying station at the casting apparatus.
  • molten metal metering apparatus which comprise a ladling means made of a metal which, in principle, has but small resistance to the melt in which it is to be immersed when collecting metal. For this reason the ladling means have hitherto been dressed with a suitable chemical agent which protects the metal from which the ladle is made, during the short time theladling means is in use.
  • the known ladling means cannot be kept in the melt, but, when not in use, must be kept in the surrounding atmosphere in a position ready for use, which means that it is necessary to heat the ladle with a gas flame or the like to maintain the ladle at a temperature at which no freezing effect occurs in the metal to be conveyed in the ladle or in a melting furnace or the like.
  • the ladling means is generally supported and controlled in a manner such as to enable it to be operated mechanically between a molten metal pick-up position in the melt and a molten metal discharge position at the consumer station, e.g., a casting machine.
  • the melt in the furnace is of necessity completely exposed to the influence of the atmosphere at least during the pick-up period, which means that the surface layer of the melt becomes oxidized, thereby causing considerable disadvantage.
  • the object of the present invention is to provide a metering means in the form of a ladle made of a material which is so resistant to the 'hotmolten metal that the ladle can be kept in its pick-up position in the melt without it being necessary to move the ladle to a position of readiness externally of the furnace.
  • a further object of the invention is to provide a device with which the furnace can be kept fully closed, i.e., so that the molten metal therein is substantially unexposed to the oxidizing effect of the surrounding atmosphere and so that the ladle forms a lid means for a molten metal pick-up opening arranged in the furnace wall.
  • the invention is mainly characterized in that in an initial position the ladle extends with a relatively good fit through an opening confirming thereto and arranged in a portion of the walls of the storage container and arranged to close said container.
  • the ladle has the form of a tube made of a material resistant to the molten metal and provided, at
  • communication between the opening in the container wall and the surface of the melt is restricted by at least one shield member or the like immersed in the melt.
  • the storage container is provided with a removable lid, the opening being arranged in the lid and shielded from the major portion of the atmosphere in the container above the surface of the melt by a shield member immersed in the melt.
  • FIG. 1 is a vertical sectional view of a furnace containing molten metal and provided with a ladle means according to the invention.
  • FIG. 2 shows the ladle tipped to its emptying position above an opening 24 intended to receive a specific quantity of molten metal carried by the ladle.
  • the reference numeral 10 indicates a furnace which is well insulated on all sides thereof and which contains a melt ll of castable metal.
  • the furnace communicates with a chamber 12 in which there is arranged a source of heat 13, said source in the illustrated example being an electric resistance element carried by a so-called floating lid 14 of known type resting on the molten metal in the chamber 12.
  • a source of heat 13 being an electric resistance element carried by a so-called floating lid 14 of known type resting on the molten metal in the chamber 12.
  • Arranged in the upper portion of the furnace I0 is an opening through which the lowervend, i.e., the pick-up end 16, of a ladling device 15 constructed in accordance with the invention is dipped into the melt 11.
  • the opening is arranged in a separate, removable furnace lid 17.
  • the illustrated ladling device 15 has substantially the form of a cylindrical tube.
  • the device need not have round cross section, however, but may be of square, hexagonal or any other cross sectional shape.
  • the tubular ladling device 15 is shown in its rest position, which also constitutes its pick-up position for collecting molten metal from the container.
  • a filling opening 19 is arranged in the side of the tubular ladling device 15 adjacent the surface level 18 of the melt 11, the lower end 20 of the opening 19 being located below the surface level of the melt, wherewith the quantity of molten metal contained between the closed bottom ,21 of the ladling device and the lower end 20 of said device constitutes the pre-determined quantity of molten metal to be picked-up by the ladle and transferred to theconsumer station.
  • the upper end of the ladling device 15 is also closed with a lid 22 or the like, there being arranged immediately beneath the lid 22 an opening 23 intended to serve as an outlet opening when the ladling device 15 is tipped to the position shown in FIG. 2, with theoutlet opening 23 locatedabove the filling opening 24 in the filling cylinder or like device 25 of the consumer station (not shown).
  • the opening 19 is also indicated in FIG. 2.
  • the ladling device 15 is shown protected by means of a circular shield 26 which extends downwardly around the ladling device 15 from the furnace lid 17 to a position beneath the level of the molten metal 11.
  • the walls around the opening in the upper portion of the furnace and the inner walls 26 of the shield are intended to accommodate the ladling device 15 with a relatively good fit when said device occupies its beforementioned rest position in the furnace, which means that the device itself simultaneously forms a type of lid for the furnace.
  • Communication between the outer air and the surface of the melt is restricted by the shield 26, only a small portion of the surface of the the melt freezing and only a minimum of oxides are formed on said surface. Since the major portion of the furnace is insulated from the air outside the furnace, only a very small quantity of heat need be provided to maintain the furnace at the correct temperature. This enables inexpensive heat sources to be used.
  • the ladling device is carried by some mechanical control system capable of being operated manually or also automatically and which is arranged to movethe ladling device from its rest position shown in FIG. 1, i.e., the pick-up position, to the emptying position shown in FIG. 2 and back to its rest position, essentially by known methods.
  • the furnace chamber 12 may be connected to a system for distributing molten metal, e.g., to die-casting machines.
  • a device for metering molten metal to casting machines comprising, in combination, a storage container with melt therein, a ladling device capable of being dipped into the melt in said storage container and movable between a ladle filling position in the melt and a ladle emptying position at a casting machine.
  • said ladling device extending in an initial position with a close fit through an opening in a portion of the walls of said storage container, and at least one shield member extending into the melt for restricting the communication between said opening in the walls of said storage container and the surface level of the melt.
  • a device wherein said storage container has a removable lid, said opening being arranged in said lid and being screened from the major part of the atmosphere in said container above the surface of the melt by said shield member extending into the molten metal.
  • said ladling device has the form of a tube constructed of a material resistant to the melt and having at least at its pick up end, a bottom member and a filling opening spaced from said bottom member.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
US365745A 1972-06-05 1973-05-31 Device for metering molten metal to consumer stations Expired - Lifetime US3865282A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7207372A SE370341B (enrdf_load_stackoverflow) 1972-06-05 1972-06-05

Publications (1)

Publication Number Publication Date
US3865282A true US3865282A (en) 1975-02-11

Family

ID=20271183

Family Applications (1)

Application Number Title Priority Date Filing Date
US365745A Expired - Lifetime US3865282A (en) 1972-06-05 1973-05-31 Device for metering molten metal to consumer stations

Country Status (5)

Country Link
US (1) US3865282A (enrdf_load_stackoverflow)
DE (1) DE2327879C2 (enrdf_load_stackoverflow)
FR (1) FR2187471B1 (enrdf_load_stackoverflow)
IT (1) IT990620B (enrdf_load_stackoverflow)
SE (1) SE370341B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD365987S (en) 1994-07-15 1996-01-09 Carter Holt Harvey Plastic Products Group Limited Outlet metering assembly
US5544867A (en) * 1995-03-13 1996-08-13 Neyer; Richard H. Apparatus and process for transporting molten metal

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676370A (en) * 1950-05-19 1954-04-27 Nat Lead Co Die casting machine with automatic ladle
US3236103A (en) * 1963-09-12 1966-02-22 United States Steel Corp Method for sampling molten metal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676370A (en) * 1950-05-19 1954-04-27 Nat Lead Co Die casting machine with automatic ladle
US3236103A (en) * 1963-09-12 1966-02-22 United States Steel Corp Method for sampling molten metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD365987S (en) 1994-07-15 1996-01-09 Carter Holt Harvey Plastic Products Group Limited Outlet metering assembly
US5544867A (en) * 1995-03-13 1996-08-13 Neyer; Richard H. Apparatus and process for transporting molten metal

Also Published As

Publication number Publication date
DE2327879A1 (de) 1973-12-20
SE370341B (enrdf_load_stackoverflow) 1974-10-14
FR2187471B1 (enrdf_load_stackoverflow) 1977-12-30
IT990620B (it) 1975-07-10
FR2187471A1 (enrdf_load_stackoverflow) 1974-01-18
DE2327879C2 (de) 1982-05-13

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Date Code Title Description
AS Assignment

Owner name: SWEDISH FURNACE AB, P.O. BOX 134, S-73401 HALLSTAH

Free format text: ASSIGNS NUNC PRO TUNC AS OF JUNE 10, 1988 THE ENTIRE INTEREST IN SAID PATENTS TO ASSIGNEE. (SUBJECTTO CONDITIONS RECITED.);ASSIGNOR:GRANGES ALUMINIUM AB, PREVIOUSLY GRANGES ESSEM AB;REEL/FRAME:004952/0001

Effective date: 19880630

Owner name: SWEDISH FURNACE AB, P.O. BOX 134, S-73401 HALLSTAH

Free format text: ASSIGNS NUNC PRO TUNC AS OF JUNE 10, 1988 THE ENTIRE INTEREST IN SAID PATENTS TO ASSIGNEE SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:ELECTROLUX AUTOLIV AB, FORMERLY GRANGES WEDA AB;REEL/FRAME:004952/0004

Effective date: 19880630

Owner name: MPH INDUSTRIES INC., P.O. BOX 131, RIVERSIDE, MICH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SWEDISH FURNACE AB;REEL/FRAME:004952/0006

Effective date: 19880704

Owner name: SWEDISH FURNACE AB, P.O. BOX 134, S-73401 HALLSTAH

Free format text: ASSIGNS NUNC PRO TUNC;ASSIGNOR:GRANGES ALUMINIUM AB, PREVIOUSLY GRANGES ESSEM AB;REEL/FRAME:004952/0001

Effective date: 19880630

Owner name: SWEDISH FURNACE AB, P.O. BOX 134, S-73401 HALLSTAH

Free format text: ASSIGNS NUNC PRO TUNC;ASSIGNOR:ELECTROLUX AUTOLIV AB, FORMERLY GRANGES WEDA AB;REEL/FRAME:004952/0004

Effective date: 19880630

Owner name: MPH INDUSTRIES INC., P.O. BOX 131, RIVERSIDE, MICH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SWEDISH FURNACE AB;REEL/FRAME:004952/0006

Effective date: 19880704

AS Assignment

Owner name: AEROTRONIC ASSOCIATES, INC., HIGH RIDGE PARK, P.O.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MPH INDUSTRIES, INC.;REEL/FRAME:005471/0336

Effective date: 19900507

AS Assignment

Owner name: GENERAL SIGNAL TECHNOLOGY CORPORATION, A CORP OF D

Free format text: MERGER;ASSIGNOR:AEROTRONIC ASSOCIATES, INC.,;REEL/FRAME:005573/0518

Effective date: 19901219

AS Assignment

Owner name: GENERAL SIGNAL CORPORATION, A NY CORP.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GENERAL SIGNAL TECHNOLOGY CORPORATION;REEL/FRAME:005578/0193

Effective date: 19910122