GB1427372A - Induction heating coils - Google Patents

Induction heating coils

Info

Publication number
GB1427372A
GB1427372A GB4743073A GB4743073A GB1427372A GB 1427372 A GB1427372 A GB 1427372A GB 4743073 A GB4743073 A GB 4743073A GB 4743073 A GB4743073 A GB 4743073A GB 1427372 A GB1427372 A GB 1427372A
Authority
GB
United Kingdom
Prior art keywords
halves
coil
insert
induction heating
separable
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
GB4743073A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1427372A publication Critical patent/GB1427372A/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
    • H05B6/36—Coil arrangements
    • H05B6/42—Cooling of coils
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B13/00—Single-crystal growth by zone-melting; Refining by zone-melting
    • C30B13/16—Heating of the molten zone
    • C30B13/20—Heating of the molten zone by induction, e.g. hot wire technique

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
  • Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

1427372 Induction heating coil SIEMENS AG 11 Oct 1973 [1 Feb 1973] 47430/73 Addition to 1406079 Heading H5H A pancake induction heating coil for crucible free zone melting comprises a wound section, e.g. turns 4, 5 and an annular internal insert extending towards the centre of the coil, the insert being in two separable halves 3, 7, the half 3 being permanently connected to one end of the innermost turn of the wound section, and the abutting faces of the two halves of the insert being at right angles to the plane of the coil. The coil is made of copper and/or silver, and the two halves of the insert have flanges 11, 12 of silver plated brass hard soldered thereto by means of which they are secured together by nuts and bolts 17. Cooling passages (not shown) through the insert halves have rubber seals at their facing ends to prevent leakage of coolant when the halves are united. The separable construction of the coil enables it to be readily placed about silicon rods for the production of silicon monocrystals.
GB4743073A 1973-02-01 1973-10-11 Induction heating coils Expired GB1427372A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732304974 DE2304974C3 (en) 1973-02-01 1973-02-01 Water-cooled induction heating coil for crucible-free zone melting of rods made of semiconductor material

Publications (1)

Publication Number Publication Date
GB1427372A true GB1427372A (en) 1976-03-10

Family

ID=5870662

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4743073A Expired GB1427372A (en) 1973-02-01 1973-10-11 Induction heating coils

Country Status (6)

Country Link
JP (1) JPS5510117B2 (en)
BE (1) BE810520R (en)
DE (1) DE2304974C3 (en)
FR (1) FR2216747B2 (en)
GB (1) GB1427372A (en)
IT (1) IT1046553B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2938793A1 (en) * 1979-09-25 1981-04-16 Siemens AG, 1000 Berlin und 8000 München Flat induction coil for localised treatment of semiconductor bars - has separable halves with independent coolant circuits and conductive zones on separation faces
JPH0363294U (en) * 1988-11-17 1991-06-20
FR2654583B1 (en) * 1989-11-22 1992-09-11 Expanchimie PROCESS FOR THE EXTRACTION OF CHOLESTEROL CONTAINED IN AN FAT MATERIAL OF ANIMAL ORIGIN.

Also Published As

Publication number Publication date
DE2304974C3 (en) 1980-07-10
FR2216747A2 (en) 1974-08-30
DE2304974A1 (en) 1974-08-08
JPS49111243A (en) 1974-10-23
DE2304974B2 (en) 1979-10-11
IT1046553B (en) 1980-07-31
BE810520R (en) 1974-05-29
JPS5510117B2 (en) 1980-03-13
FR2216747B2 (en) 1980-07-18

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee