GB1281377A - An induction furnace - Google Patents

An induction furnace

Info

Publication number
GB1281377A
GB1281377A GB4778169A GB4778169A GB1281377A GB 1281377 A GB1281377 A GB 1281377A GB 4778169 A GB4778169 A GB 4778169A GB 4778169 A GB4778169 A GB 4778169A GB 1281377 A GB1281377 A GB 1281377A
Authority
GB
United Kingdom
Prior art keywords
force
melt
melt flow
flux
flow
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
Application number
GB4778169A
Inventor
Staffan Granstrom
Ingemar Goransson
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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
Priority claimed from SE13158/68A external-priority patent/SE324406B/xx
Priority claimed from SE08512/69A external-priority patent/SE361525B/xx
Application filed by ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB1281377A publication Critical patent/GB1281377A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B7/00—Combined normal and automatic winding up
    • 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
    • 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
    • B22D39/003—Equipment for supplying molten metal in rations using electromagnetic field
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/027—Wheels; Pinions; Spindles; Pivots planar toothing: shape and design
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/16—Furnaces having endless cores
    • H05B6/20—Furnaces having endless cores having melting channel only
    • 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
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/218—Means to regulate or vary operation of device
    • Y10T137/2191—By non-fluid energy field affecting input [e.g., transducer]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Details (AREA)
  • General Induction Heating (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Magnetically Actuated Valves (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

1281377 Induction furnaces ALLMANNA SVENSKA ELEKTRISKA AB 29 Sept 1969 [30 Sept 1968 16 June 1969] 47781/69 Heading F4B [Also in Divisions H2 and H5] The direction and rate of flow of a metal or alloy melt in the channels 115, 116, 117, 118 of an inductor unit of an induction heating furnace are regulated by establishing a magnetic flux B perpendicularly across the melt flow using a D.C. or single phase A.C. fed electromagnet, which flux interacts with the secondary currents j induced in the melt flow by one or more primary heating coils 113, 114, to produce a force F on the melt flow. Relative variation of the magnetic flux or the secondary currents, varies the force produced, whilst alteration of the relative directions of the flux and secondary current flows, alters the direction of the resultant force F. In modifications (Figs. 1 and 7, not shown) the force F may accelerate, pervent or restrict melt flow through a tap-hole communicating with the bottom channel, the force being automatically varied in response to a signal from a weighing device or a level indicator in a melt receiving ladle (not shown). A safety valve (not shown) may close off the taphole on failure of the electric current supply, or a reserve current source may be included in the supply circuit. The furnace may be used to vacuum degas a melt.
GB4778169A 1968-09-30 1969-09-29 An induction furnace Expired GB1281377A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE13158/68A SE324406B (en) 1968-09-30 1968-09-30
SE08512/69A SE361525B (en) 1969-06-16 1969-06-16

Publications (1)

Publication Number Publication Date
GB1281377A true GB1281377A (en) 1972-07-12

Family

ID=26654846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4778169A Expired GB1281377A (en) 1968-09-30 1969-09-29 An induction furnace

Country Status (4)

Country Link
US (1) US3701357A (en)
JP (1) JPS4813215B1 (en)
CH (1) CH519360A (en)
GB (1) GB1281377A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE413074B (en) * 1976-10-25 1980-04-14 Asea Ab PROCEDURE FOR SEATING RESISTIVE VOLTAGE CASES AT THE METALLURGICAL CONTAINER
US4171707A (en) * 1977-04-25 1979-10-23 Ben-Gurion University Of The Negev, Research And Development Authority Method and apparatus for controlling the flow of liquid metal
CH665369A5 (en) * 1984-03-07 1988-05-13 Concast Standard Ag METHOD FOR CONTROLLING THE FLOW OF A METAL MELT IN CONTINUOUS CASTING, AND A DEVICE FOR IMPLEMENTING THE METHOD.
GB8711041D0 (en) * 1987-05-11 1987-06-17 Electricity Council Electromagnetic valve
GB2218019B (en) * 1988-04-25 1992-01-08 Electricity Council Electromagnetic valve
FR2647874B1 (en) * 1989-06-02 1991-09-20 Galva Lorraine ELECTROMAGNETIC VALVE FOR CONTROLLING THE FLOW OF A METAL OR METAL ALLOY IN LIQUID PHASE IN A LOADED PIPING
DZ1422A1 (en) * 1989-06-09 2004-09-13 Galva Lorraine Method, procedure and installation for the continuous / intermittent coating of objects by passing said objects through a liquid mass of a coating product.
DE4100166A1 (en) * 1991-01-05 1992-07-09 Freudenberg Carl Fa PRESSURE REGULATING VENTILATION VALVE
US5353839A (en) * 1992-11-06 1994-10-11 Byelocorp Scientific, Inc. Magnetorheological valve and devices incorporating magnetorheological elements
US6106620A (en) * 1995-07-26 2000-08-22 Bhp Steel (Jla) Pty Ltd. Electro-magnetic plugging means for hot dip coating pot
DE29607363U1 (en) * 1996-04-23 1996-08-22 Bürkert Werke GmbH & Co., 74653 Ingelfingen Valve through which gas flows
US6321766B1 (en) 1997-02-11 2001-11-27 Richard D. Nathenson Electromagnetic flow control valve for a liquid metal with built-in flow measurement
US6044858A (en) * 1997-02-11 2000-04-04 Concept Engineering Group, Inc. Electromagnetic flow control valve for a liquid metal
US6079953A (en) * 1998-05-15 2000-06-27 Interactive Return Service, Inc. Raising siphon method and apparatus
JP2001074376A (en) * 1999-09-03 2001-03-23 Shinko Electric Co Ltd Melting furnace and method for controlling tap flow rate
US6799595B1 (en) * 2003-03-06 2004-10-05 The United States Of America As Represented By The Secretary Of The Navy Meltable and reclosable drain plug for molten salt reactor
DE102009035241B4 (en) * 2008-08-07 2014-06-12 Tmt Tapping-Measuring-Technology Gmbh Methods and apparatus for controlling the flow rate and decelerating nonferromagnetic, electrically conductive liquids and melts
US8343416B2 (en) * 2008-08-07 2013-01-01 Tmt Tapping-Measuring-Technology Gmbh Methods and devices for regulating the flow rate and for slowing down non-ferromagnetic, electrically conductive liquids and melts

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539215A (en) * 1946-07-12 1951-01-23 Ajax Engineering Corp Electric furnace, including electromagnetic pump for molten metal
US2552876A (en) * 1947-02-04 1951-05-15 Ajax Engineering Corp Metal pumping and siphoning
US2707718A (en) * 1948-05-26 1955-05-03 Ajax Engineering Corp Induction pump for casting molten metals
US2836637A (en) * 1954-06-10 1958-05-27 Pechiney Prod Chimiques Sa Apparatus for removing liquid metal from furnaces
US3106058A (en) * 1958-07-18 1963-10-08 Carl E Grebe Propulsion system
US3071154A (en) * 1960-10-25 1963-01-01 Sperry Rand Corp Electro-pneumatic fluid amplifier
US3219851A (en) * 1961-05-17 1965-11-23 Robert P Kidwell Electrical energy conversion device
US3270637A (en) * 1963-10-03 1966-09-06 Xerox Corp Electroviscous recording
US3520316A (en) * 1963-12-12 1970-07-14 Bowles Eng Corp Pressure-to-pressure transducer
US3266514A (en) * 1964-04-20 1966-08-16 John D Brooks Signal summing point device for hybrid fluid and electronic controls
US3417771A (en) * 1965-09-24 1968-12-24 Ernst Hans Flow control apparatus for fluent magnetic materials
US3506023A (en) * 1968-04-08 1970-04-14 Us Air Force Apparatus for controlling the flow of particles of magnetic material through an orifice

Also Published As

Publication number Publication date
DE1949053B2 (en) 1972-11-09
JPS4813215B1 (en) 1973-04-26
DE1949053A1 (en) 1970-09-17
CH519360A (en) 1972-02-29
US3701357A (en) 1972-10-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee