GB1322092A - Method of adjusting the dimensions of sintered ferromagnetic cores - Google Patents

Method of adjusting the dimensions of sintered ferromagnetic cores

Info

Publication number
GB1322092A
GB1322092A GB4647871A GB4647871A GB1322092A GB 1322092 A GB1322092 A GB 1322092A GB 4647871 A GB4647871 A GB 4647871A GB 4647871 A GB4647871 A GB 4647871A GB 1322092 A GB1322092 A GB 1322092A
Authority
GB
United Kingdom
Prior art keywords
core
dimensions
adjusting
sintered
oct
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
GB4647871A
Other languages
English (en)
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1322092A publication Critical patent/GB1322092A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
    • 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
    • H01F27/255—Magnetic cores made from particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00—Fixed inductances not covered by group H01F17/00
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/236—Manufacture of magnetic deflecting devices for cathode-ray tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/04—Fixed inductances of the signal type with magnetic core
    • H01F2017/048—Fixed inductances of the signal type with magnetic core with encapsulating core, e.g. made of resin and magnetic powder
    • 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
    • H01F41/04—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 for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/071—Winding coils of special form
    • H01F2041/0711—Winding saddle or deflection coils
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core
    • Y10T29/49076—From comminuted material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Powder Metallurgy (AREA)
  • Soft Magnetic Materials (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
GB4647871A 1970-10-09 1971-10-06 Method of adjusting the dimensions of sintered ferromagnetic cores Expired GB1322092A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL7014813A NL7014813A (enExample) 1970-10-09 1970-10-09
US18469671A 1971-09-29 1971-09-29
US00388256A US3829806A (en) 1970-10-09 1973-08-14 Sintered ferromagnetic core having accurately adjusted dimensions

Publications (1)

Publication Number Publication Date
GB1322092A true GB1322092A (en) 1973-07-04

Family

ID=27351608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4647871A Expired GB1322092A (en) 1970-10-09 1971-10-06 Method of adjusting the dimensions of sintered ferromagnetic cores

Country Status (5)

Country Link
US (2) US3775841A (enExample)
DE (1) DE2146113A1 (enExample)
FR (1) FR2110320B1 (enExample)
GB (1) GB1322092A (enExample)
NL (1) NL7014813A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113776337A (zh) * 2021-10-15 2021-12-10 海宁市海铖电子有限公司 一种防开裂显微结构锰锌铁氧体磁芯均热烧结装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230113A (en) * 1975-09-02 1977-03-07 Sony Corp Deflecting device of in-line type color cathode-ray tube
DE2805562C2 (de) * 1978-02-10 1984-08-02 Kuka Schweissanlagen + Roboter Gmbh, 8900 Augsburg Vorrichtung zum Anschweißen eines Werkstücks mit rohrförmigem Querschnitt an der Schweißstelle an ein zweites Werkstück
US4264683A (en) * 1978-07-26 1981-04-28 Permacoraltair, Inc. Metallic inductor cores
NL8004200A (nl) * 1980-07-22 1982-02-16 Philips Nv Kunststofgebonden electromagnetische component en werkwijze voor het vervaardigen daarvan.
US4647890A (en) * 1986-05-15 1987-03-03 Battelle Development Corporation Molded ferromagnetic return circuit for a solenoid
US5166655A (en) * 1988-02-16 1992-11-24 Gowanda Electronics Corporation Shielded inductor
US5015982A (en) * 1989-08-10 1991-05-14 General Motors Corporation Ignition coil

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US476816A (en) * 1892-06-14 And alfred pfxnn
US683954A (en) * 1900-11-30 1901-10-08 Frederick Rohnert Telephone-transformer.
GB214780A (en) * 1923-11-13 1924-05-01 Sydney Harold Varnals Improvements in stationary electrical transformers
US2118291A (en) * 1936-05-06 1938-05-24 Commw Mfg Company Arc welding unit
US3325760A (en) * 1965-10-01 1967-06-13 Gen Motors Corp Electromagnet with resinous ferromagnetic cladding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113776337A (zh) * 2021-10-15 2021-12-10 海宁市海铖电子有限公司 一种防开裂显微结构锰锌铁氧体磁芯均热烧结装置
CN113776337B (zh) * 2021-10-15 2024-01-16 海宁市海铖电子有限公司 一种防开裂显微结构锰锌铁氧体磁芯均热烧结装置

Also Published As

Publication number Publication date
DE2146113A1 (de) 1972-04-13
US3829806A (en) 1974-08-13
FR2110320A1 (enExample) 1972-06-02
US3775841A (en) 1973-12-04
FR2110320B1 (enExample) 1976-06-04
NL7014813A (enExample) 1972-04-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees