GB309394A - Improvements in the manufacture of cores for electromagnets or the like - Google Patents

Improvements in the manufacture of cores for electromagnets or the like

Info

Publication number
GB309394A
GB309394A GB68528A GB68528A GB309394A GB 309394 A GB309394 A GB 309394A GB 68528 A GB68528 A GB 68528A GB 68528 A GB68528 A GB 68528A GB 309394 A GB309394 A GB 309394A
Authority
GB
United Kingdom
Prior art keywords
silicon
annealed
iron
coated
electromagnets
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
GB68528A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB68528A priority Critical patent/GB309394A/en
Publication of GB309394A publication Critical patent/GB309394A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14775—Fe-Si based alloys in the form of sheets
    • H01F1/14783—Fe-Si based alloys in the form of sheets with insulating coating

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Heat Treatment Of Articles (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

309,394. General Electric Co., Ltd., Singleton, W., and Marris, G. C. Jan. 9, 1928. Electromagnets.-Cores for electromagnets &c. comprise powdered or laminated magnetic material coated with silicon or with a substance containing silicon by treating it in a heated condition with silicon tetrachloride. The coating may be or contain an alloy of silicon. Iron or iron-alloy powder or laminations may be heated to dull red heat in a current of nitrogen or other inert gas mixed with silicon tetrachloride vapour. The coated material may be annealed in hydrogen or other non-oxidizing gas before consolidation to form a core. Powdered material may be pressed to the required shape and density with or without a binder. In treating nickel-iron containing 80 per cent of nickel and developing high permeability when annealed at 600‹ C., the silicon-coated powder is not annealed in hydrogen, this annealing being omitted or carried out in inert gas, and is further coated before consolidation with insulation withstanding the temperature at which the consolidated core is annealed. Specification 309,393, [C!ass 72, Iron &c.], is refeired to.
GB68528A 1928-01-09 1928-01-09 Improvements in the manufacture of cores for electromagnets or the like Expired GB309394A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB68528A GB309394A (en) 1928-01-09 1928-01-09 Improvements in the manufacture of cores for electromagnets or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB68528A GB309394A (en) 1928-01-09 1928-01-09 Improvements in the manufacture of cores for electromagnets or the like

Publications (1)

Publication Number Publication Date
GB309394A true GB309394A (en) 1929-04-09

Family

ID=9708715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB68528A Expired GB309394A (en) 1928-01-09 1928-01-09 Improvements in the manufacture of cores for electromagnets or the like

Country Status (1)

Country Link
GB (1) GB309394A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006133134A2 (en) 2005-06-03 2006-12-14 Prezacor, Inc. Compositions comprising elemental metals and uses therefor
AU2012216851B2 (en) * 2005-06-03 2015-05-07 Prezacor, Inc. Compositions comprising elemental metals and uses therefor
US10905894B2 (en) 2013-03-15 2021-02-02 Prezacor, Inc. Therapeutic bioelectromagnetic fields, pain relief devices, and related methods

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006133134A2 (en) 2005-06-03 2006-12-14 Prezacor, Inc. Compositions comprising elemental metals and uses therefor
EP1904297A2 (en) * 2005-06-03 2008-04-02 Prezacor, Inc. Compositions comprising elemental metals and uses therefor
EP1904297A4 (en) * 2005-06-03 2009-02-18 Prezacor Inc Compositions comprising elemental metals and uses therefor
EP2508341A1 (en) * 2005-06-03 2012-10-10 Prezacor, Inc. Compositions comprising elemental metals and uses therefor
AU2012216851B2 (en) * 2005-06-03 2015-05-07 Prezacor, Inc. Compositions comprising elemental metals and uses therefor
US9173900B2 (en) 2005-06-03 2015-11-03 Prezacor, Inc. Compositions comprising elemental metals
US10195148B2 (en) 2005-06-03 2019-02-05 Prezacor, Inc. Pain relieving compositions comprising elemental metals
US10905894B2 (en) 2013-03-15 2021-02-02 Prezacor, Inc. Therapeutic bioelectromagnetic fields, pain relief devices, and related methods

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