GB1298409A - Improvements in or relating to electrical insulation - Google Patents

Improvements in or relating to electrical insulation

Info

Publication number
GB1298409A
GB1298409A GB60288/70A GB6028870A GB1298409A GB 1298409 A GB1298409 A GB 1298409A GB 60288/70 A GB60288/70 A GB 60288/70A GB 6028870 A GB6028870 A GB 6028870A GB 1298409 A GB1298409 A GB 1298409A
Authority
GB
United Kingdom
Prior art keywords
per cent
mole per
ions
metal
alloy
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
GB60288/70A
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.)
Sunbeam Oster Co Inc
Original Assignee
Allegheny Ludlum Industries Inc
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 Allegheny Ludlum Industries Inc filed Critical Allegheny Ludlum Industries Inc
Publication of GB1298409A publication Critical patent/GB1298409A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/025—Other inorganic material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D5/00—Coating with enamels or vitreous layers
    • C23D5/10—Coating with enamels or vitreous layers with refractory materials
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

1298409 Modifying steel surfaces ALLEGHENY LUDLUM INDUSTRIES Inc 18 Dec 1970 [2 Jan 1970] 60288/70 Heading C7U An electrically insulative coating is provided on an alloy having a high permeability and a low core loss by treating it with an aqueous solution containing 6-18 mole per cent ammonium ions, 21-63 mole per cent phosphate ions, 8-24 mole per cent chromate ions, and 15-45 mole per cent metal ions from at least one GpIIA metal, at least 1 mole per cent of said metal ions having resulted from the oxide, hydroxide, carbonate, bicarbonate, or chromate of said metal. The coated alloy is cured at 400-1900‹F for 2 seconds to 4 hours. Calcium and magnesium are the preferred metal ions. The alloy treated may be silicon-steel, and the coating is from 0À06 to 0À2 mils thick. Reference is made to Specification 1298410.
GB60288/70A 1970-01-02 1970-12-18 Improvements in or relating to electrical insulation Expired GB1298409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43670A 1970-01-02 1970-01-02

Publications (1)

Publication Number Publication Date
GB1298409A true GB1298409A (en) 1972-12-06

Family

ID=21691532

Family Applications (1)

Application Number Title Priority Date Filing Date
GB60288/70A Expired GB1298409A (en) 1970-01-02 1970-12-18 Improvements in or relating to electrical insulation

Country Status (7)

Country Link
US (1) US3658587A (en)
JP (1) JPS5634962B1 (en)
CA (1) CA928620A (en)
DE (1) DE2061124A1 (en)
FR (1) FR2075892B1 (en)
GB (1) GB1298409A (en)
SE (1) SE368034B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5302773A (en) * 1972-03-23 1974-09-12 Allegheny Ludlum Ind Inc Surface finishing
SE377581B (en) * 1973-11-01 1975-07-14 Asea Ab
US4362782A (en) * 1980-09-25 1982-12-07 Westinghouse Electric Corp. Low temperature cure interlaminar coating
US6719384B1 (en) * 2001-01-02 2004-04-13 Snap-On Technologies, Inc. Suspendable locker

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE511468A (en) * 1951-05-21
US2753282A (en) * 1953-07-27 1956-07-03 Allegheny Ludlum Steel Method of forming insulating coat on steel and composition therefor
US3141798A (en) * 1961-11-28 1964-07-21 Gen Electric Anodization of aluminum in a solution of calcium hydroxide
US3477058A (en) * 1968-02-01 1969-11-04 Gen Electric Magnesia insulated heating elements and methods of production

Also Published As

Publication number Publication date
FR2075892B1 (en) 1974-09-20
JPS5634962B1 (en) 1981-08-14
CA928620A (en) 1973-06-19
DE2061124A1 (en) 1971-07-08
SE368034B (en) 1974-06-17
US3658587A (en) 1972-04-25
FR2075892A1 (en) 1971-10-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee