GB652918A - Improvements in or relating to laminated iron cores for dynamo-electric machines, transformers and the like - Google Patents

Improvements in or relating to laminated iron cores for dynamo-electric machines, transformers and the like

Info

Publication number
GB652918A
GB652918A GB3269248A GB3269248A GB652918A GB 652918 A GB652918 A GB 652918A GB 3269248 A GB3269248 A GB 3269248A GB 3269248 A GB3269248 A GB 3269248A GB 652918 A GB652918 A GB 652918A
Authority
GB
United Kingdom
Prior art keywords
dynamo
transformers
electric machines
relating
iron cores
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
GB3269248A
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.)
Electrolux AB
Original Assignee
Electrolux 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
Application filed by Electrolux AB filed Critical Electrolux AB
Priority to GB3269248A priority Critical patent/GB652918A/en
Publication of GB652918A publication Critical patent/GB652918A/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
    • H01F1/16—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 in the form of sheets
    • H01F1/18—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 in the form of sheets with insulating coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

652,918. Insulation for dynamo-electric machines; transformers. WATSON, F. (Aktiebolaget Elektrolux). Dec. 17, 1948, No. 32692. [Classes 35 and 38 (ii)] In order to reduce the wear on the stamping or punching tool in the manufacture of iron core laminations for dynamo-electric machines, transformers, &c. the iron sheets are first coated with a difficultly soluble phosphate layer which also acts as an insulation between layers. Specifications 386,739 and 397,179, [both in Group II], are referred to.
GB3269248A 1948-12-17 1948-12-17 Improvements in or relating to laminated iron cores for dynamo-electric machines, transformers and the like Expired GB652918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3269248A GB652918A (en) 1948-12-17 1948-12-17 Improvements in or relating to laminated iron cores for dynamo-electric machines, transformers and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3269248A GB652918A (en) 1948-12-17 1948-12-17 Improvements in or relating to laminated iron cores for dynamo-electric machines, transformers and the like

Publications (1)

Publication Number Publication Date
GB652918A true GB652918A (en) 1951-05-02

Family

ID=10342573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3269248A Expired GB652918A (en) 1948-12-17 1948-12-17 Improvements in or relating to laminated iron cores for dynamo-electric machines, transformers and the like

Country Status (1)

Country Link
GB (1) GB652918A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971252C (en) * 1954-12-24 1958-12-31 Siemens Ag Insulation sleeve for cage windings embedded in grooves
US4025379A (en) 1973-05-03 1977-05-24 Whetstone Clayton N Method of making laminated magnetic material
EP0288768A2 (en) * 1987-04-27 1988-11-02 ARMCO Inc. Method of forming a laminate and the product thereof
DE29807951U1 (en) 1998-05-04 1998-07-23 Siemens AG, 80333 München AC magnet with short-circuit ring

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971252C (en) * 1954-12-24 1958-12-31 Siemens Ag Insulation sleeve for cage windings embedded in grooves
US4025379A (en) 1973-05-03 1977-05-24 Whetstone Clayton N Method of making laminated magnetic material
EP0288768A2 (en) * 1987-04-27 1988-11-02 ARMCO Inc. Method of forming a laminate and the product thereof
EP0288768A3 (en) * 1987-04-27 1990-05-09 Armco Advanced Materials Corporation Method of forming a laminate and the product thereof
DE29807951U1 (en) 1998-05-04 1998-07-23 Siemens AG, 80333 München AC magnet with short-circuit ring

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