GB1142132A - Improvements in or relating to induction heaters - Google Patents

Improvements in or relating to induction heaters

Info

Publication number
GB1142132A
GB1142132A GB6406/66A GB640666A GB1142132A GB 1142132 A GB1142132 A GB 1142132A GB 6406/66 A GB6406/66 A GB 6406/66A GB 640666 A GB640666 A GB 640666A GB 1142132 A GB1142132 A GB 1142132A
Authority
GB
United Kingdom
Prior art keywords
coil
barrel
feb
turns
wound
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
GB6406/66A
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.)
Black Clawson Co
Original Assignee
Black Clawson Co
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 Black Clawson Co filed Critical Black Clawson Co
Publication of GB1142132A publication Critical patent/GB1142132A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/503—Extruder machines or parts thereof characterised by the material or by their manufacturing process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/832—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/834—Cooling
    • 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
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/14—Tools, e.g. nozzles, rollers, calenders
    • 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
    • H05B6/36—Coil arrangements
    • H05B6/365—Coil arrangements using supplementary conductive or ferromagnetic pieces
    • 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
    • H05B6/36—Coil arrangements
    • H05B6/40—Establishing desired heat distribution, e.g. to heat particular parts of workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/6801—Barrels or cylinders characterised by the material or their manufacturing process

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Induction Heating (AREA)
  • Resistance Heating (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1,142,132. Induction heating. BLACK CLAWSON CO. 14 Feb., 1966 [15 Feb., 1965], No. 6406/66. Heading H5H. An induction heater for apparatus in which plastics material is pelletized, extruded or otherwise shaped, comprises a multiturn coil formed of anodized A1 strip, and means for electrically isolating the coil from the apparatus. The coil 25 is wound on a ceramic or asbestos-cement spool-shaped former 20 encircling the barrel 10 of a plastics material extruder. Between the former and the barrel a quench chamber 15 is formed by a stainless steel sheet having ends welded to the barrel and is cooled by water passing between ducts 16, 17. The coil is surrounded by a flux guide 30 consisting of a plurality of turns of transformer steel which may be split at (31), Fig. 3 (not shown), to reduce eddy currents. The guide 30 and coil 25 may be insulated by fibreglass tape impregnated with silicone and mica sheet. The inductor coil may have a plurality of turns and layers and be wound from a number of strips or foil in parallel. Alternatively, the coil may be mounted in an annular cavity in the extruder.
GB6406/66A 1965-02-15 1966-02-14 Improvements in or relating to induction heaters Expired GB1142132A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US432537A US3363079A (en) 1965-02-15 1965-02-15 Induction heating

Publications (1)

Publication Number Publication Date
GB1142132A true GB1142132A (en) 1969-02-05

Family

ID=23716570

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6406/66A Expired GB1142132A (en) 1965-02-15 1966-02-14 Improvements in or relating to induction heaters

Country Status (3)

Country Link
US (1) US3363079A (en)
DE (1) DE1565415B1 (en)
GB (1) GB1142132A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0383272A2 (en) * 1989-02-17 1990-08-22 Nikko Corporation Ltd. Low-frequency electromagnetic induction heater
US5270511A (en) * 1991-06-05 1993-12-14 Nikko Corporation Ltd. Low-frequency induction heater employing stainless steel material as a secondary winding
CN111672417A (en) * 2020-06-17 2020-09-18 胡雪娇 Organic fertilizer granulator heating forming plate

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2158274A1 (en) * 1971-11-24 1973-05-30 Siemens Ag INDUCTION HEATING COIL FOR CRUCIBLE-FREE ZONE MELTING OF BARS MADE OF SEMICONDUCTOR MATERIAL
US3953700A (en) * 1973-02-12 1976-04-27 The Boeing Company Induction heater apparatus and system
US4021523A (en) * 1974-01-31 1977-05-03 Reynolds Metals Company Method of extruding plastic film
US4208560A (en) * 1974-10-16 1980-06-17 Barmag Barmer Maschinenfabrik Ag Inductively heated godet
DE3523929A1 (en) * 1984-07-28 1986-01-30 E. Blum GmbH & Co, 7143 Vaihingen Device which can be heated inductively
GB2163630B (en) * 1984-07-28 1988-02-24 Blum Gmbh & Co E Inductively heated apparatus for heating a substance
US8835762B2 (en) 2011-06-10 2014-09-16 Aerojet Rocketdyne of DE, Inc Apparatus for electrical isolation of metallic hardware
US9054148B2 (en) * 2011-08-26 2015-06-09 Lam Research Corporation Method for performing hot water seal on electrostatic chuck
IT202200017289A1 (en) * 2022-08-12 2024-02-12 Bausano & Figli Spa PLASTIFICATION GROUP FOR EXTRUDER

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604517A (en) * 1947-04-23 1952-07-22 Everett D Mccurdy Electrode and terminal assembly for electrolytic devices and methods of making same
DE1028710B (en) * 1955-01-29 1958-04-24 Helmke & Co G M B H J Induction heating device for petroleum or natural gas delivery and pipeline pipes, in which an excitation coil surrounding the pipe is enclosed by a metallic pressure pipe
US2868938A (en) * 1955-09-15 1959-01-13 Wild Barfield Electr Furnaces Inductors for heating tubes or cylinders
FR1156727A (en) * 1955-09-15 1958-05-20 Wild Barfield Electr Furnaces Induction heating sleeve usable for heating tubes or cylinders
US2998583A (en) * 1956-02-13 1961-08-29 Willis G Worcester Electrical apparatus and electromagnetic coils and method of making the same
DE1128580B (en) * 1957-07-19 1962-04-26 Otto Junker Fa Electrical insulation of an induction furnace coil made of copper
GB931298A (en) * 1959-07-17 1963-07-17 Blaw Knox Co Eddy current induction heater
DE1896198U (en) * 1963-04-26 1964-07-09 Siemens Schukkertwerke Ag INDUCTION COIL FOR HEATING ROD-SHAPED WORKPIECES.
US3283190A (en) * 1965-10-18 1966-11-01 Robert B Applegate Dynamoelectric machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0383272A2 (en) * 1989-02-17 1990-08-22 Nikko Corporation Ltd. Low-frequency electromagnetic induction heater
EP0383272A3 (en) * 1989-02-17 1991-03-27 Nikko Corporation Ltd. Low-frequency electromagnetic induction heater
AU624476B2 (en) * 1989-02-17 1992-06-11 Nikko Corporation Ltd. Low-frequency electromagnetic induction heater
US5270511A (en) * 1991-06-05 1993-12-14 Nikko Corporation Ltd. Low-frequency induction heater employing stainless steel material as a secondary winding
CN111672417A (en) * 2020-06-17 2020-09-18 胡雪娇 Organic fertilizer granulator heating forming plate

Also Published As

Publication number Publication date
US3363079A (en) 1968-01-09
DE1565415B1 (en) 1971-01-28

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