GB1472539A - Method of manufacturing ferromagnetic ferrite cores - Google Patents

Method of manufacturing ferromagnetic ferrite cores

Info

Publication number
GB1472539A
GB1472539A GB4020273A GB4020273A GB1472539A GB 1472539 A GB1472539 A GB 1472539A GB 4020273 A GB4020273 A GB 4020273A GB 4020273 A GB4020273 A GB 4020273A GB 1472539 A GB1472539 A GB 1472539A
Authority
GB
United Kingdom
Prior art keywords
ferrites
optionally
cao
mixture
ferromagnetic ferrite
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
GB4020273A
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 Components Ltd
Original Assignee
Mullard 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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB4020273A priority Critical patent/GB1472539A/en
Publication of GB1472539A publication Critical patent/GB1472539A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/2658—Other ferrites containing manganese or zinc, e.g. Mn-Zn ferrites

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Magnetic Ceramics (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

1472539 Manganese zinc ferrites MULLARD Ltd 3 July 1974 [24 Aug 1973] 40202/73 Heading C1J A ferromagnetic ferrite core is manufactured by wet grinding a mixture comprising Fe 2 O 3 , ZnO, a manganese oxide, and optionally one or more of SnO 2 , TiO 2 , SiO 2 , CaO, OuO and MgO and/or one or more of a compound of Sn, Ti, Si, Ca, Cu and Mg decomposable to the oxide on heating, drying the resultant, slurry, forming into shape of core and sintering, wherein the particle sizes of the materials forming the mixture are less than 1 micron. Examples describe MnZnMgCu ferrites, MnZnFe<SP>2+</SP> ferrites containing tin and optionally titanium and MnZn ferrites optionally contain SiO 2 and/or CaO.
GB4020273A 1974-07-03 1974-07-03 Method of manufacturing ferromagnetic ferrite cores Expired GB1472539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4020273A GB1472539A (en) 1974-07-03 1974-07-03 Method of manufacturing ferromagnetic ferrite cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4020273A GB1472539A (en) 1974-07-03 1974-07-03 Method of manufacturing ferromagnetic ferrite cores

Publications (1)

Publication Number Publication Date
GB1472539A true GB1472539A (en) 1977-05-04

Family

ID=10413714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4020273A Expired GB1472539A (en) 1974-07-03 1974-07-03 Method of manufacturing ferromagnetic ferrite cores

Country Status (1)

Country Link
GB (1) GB1472539A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043286A1 (en) * 1999-04-05 2000-10-11 Minebea Co., Ltd. Process for producing Mn-Zn ferrite
US6296791B1 (en) * 1999-04-05 2001-10-02 Minebea Co., Ltd. Process for producing Mn-Zn ferrite
CN112408995A (en) * 2020-11-26 2021-02-26 宿迁菲莱特电子制品有限公司 Sintering process for reducing cracking of ferrite core

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043286A1 (en) * 1999-04-05 2000-10-11 Minebea Co., Ltd. Process for producing Mn-Zn ferrite
US6296791B1 (en) * 1999-04-05 2001-10-02 Minebea Co., Ltd. Process for producing Mn-Zn ferrite
US6403017B1 (en) 1999-04-05 2002-06-11 Minebea Co., Ltd. Process for producing Mn-Zn ferrite
CN112408995A (en) * 2020-11-26 2021-02-26 宿迁菲莱特电子制品有限公司 Sintering process for reducing cracking of ferrite core

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Legal Events

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