GB953113A - Method of preparing powders intended for the stamping of magnetic cores and other compressed parts made of powder - Google Patents

Method of preparing powders intended for the stamping of magnetic cores and other compressed parts made of powder

Info

Publication number
GB953113A
GB953113A GB16414/61A GB1641461A GB953113A GB 953113 A GB953113 A GB 953113A GB 16414/61 A GB16414/61 A GB 16414/61A GB 1641461 A GB1641461 A GB 1641461A GB 953113 A GB953113 A GB 953113A
Authority
GB
United Kingdom
Prior art keywords
powder
binder
added
magnetic cores
stamping
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
GB16414/61A
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.)
Lignes Telegraphiques et Telephoniques LTT SA
Original Assignee
Lignes Telegraphiques et Telephoniques LTT SA
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
Priority claimed from FR826721A external-priority patent/FR1264545A/en
Application filed by Lignes Telegraphiques et Telephoniques LTT SA filed Critical Lignes Telegraphiques et Telephoniques LTT SA
Publication of GB953113A publication Critical patent/GB953113A/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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/1315—Non-ceramic binders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • 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
    • 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
    • H01F1/20—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 particles, e.g. powder
    • H01F1/22—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 particles, e.g. powder pressed, sintered, or bound together
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

953,113. Magnetic structures. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES. May 5, 1961 [May 10, 1960], No. 16414/61. Heading H1H. In the preparation of a ferromagnetic body by compressing and heating a powder, methyl-2 pentanediol 2-4 and a plastics binding agent are added to the powder to act as a combined lubricant and binder. The plastics binder may be polyvinyl acetate, polyvinyl alcohol, or nitrocellulose. In one example a mixture of oxides of iron, manganese and zinc in the molecular proportions 52.5 Fe 2 O 3 , 28.3 MnO 1 . 33 , 19.2 ZnO were ground and 0.1% by weight Ca added. The hexylene glycol and binder were then added. The powder was pressed into toroids, heated to 500‹ C. for 15 hours, held at this temperature for 15 hours, and sintered at 1235 ‹ C. in nitrogen containing a little oxygen. The hexylene glycol and the plastic binder may each comprise 3% by weight of the powder mixture. Properties of the magnetic cores so formed are specified.
GB16414/61A 1960-05-10 1961-05-05 Method of preparing powders intended for the stamping of magnetic cores and other compressed parts made of powder Expired GB953113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR826721A FR1264545A (en) 1960-05-10 1960-05-10 Process for the preparation of powders intended for the forging of magnetic cores and other compressed powder parts

Publications (1)

Publication Number Publication Date
GB953113A true GB953113A (en) 1964-03-25

Family

ID=8731062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16414/61A Expired GB953113A (en) 1960-05-10 1961-05-05 Method of preparing powders intended for the stamping of magnetic cores and other compressed parts made of powder

Country Status (7)

Country Link
BE (1) BE603608A (en)
CH (1) CH435474A (en)
DE (1) DE1209477B (en)
ES (1) ES266660A1 (en)
GB (1) GB953113A (en)
IT (1) IT649863A (en)
NL (1) NL113443C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4834800A (en) * 1986-10-15 1989-05-30 Hoeganaes Corporation Iron-based powder mixtures
US5298055A (en) * 1992-03-09 1994-03-29 Hoeganaes Corporation Iron-based powder mixtures containing binder-lubricant
US6039784A (en) * 1997-03-12 2000-03-21 Hoeganaes Corporation Iron-based powder compositions containing green strength enhancing lubricants
GB9723723D0 (en) * 1997-11-11 1998-01-07 Silberline Ltd Metal powder pigment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446872A (en) * 1941-12-04 1948-08-10 Gen Motors Corp Method of molding ceramic articles
GB675195A (en) * 1948-02-16 1952-07-09 Minnesota Mining & Mfg Improvements in or relating to magnetic recording member and method of making same
US2582993A (en) * 1948-10-29 1952-01-22 Glenn N Howatt Method of producing high dielectric high insulation ceramic plates
US2656319A (en) * 1949-01-03 1953-10-20 Aladdin Ind Inc Magnetic core composition and method of producing the same
US2723238A (en) * 1952-08-19 1955-11-08 Rca Corp Manganese zinc ferrospinel compositions, including copper oxide
US2886530A (en) * 1955-07-19 1959-05-12 Greger Herbert Hans Process of manufacturing ceramic ferrites

Also Published As

Publication number Publication date
CH435474A (en) 1967-05-15
ES266660A1 (en) 1961-09-01
NL113443C (en)
IT649863A (en)
DE1209477B (en) 1966-01-20
BE603608A (en) 1961-11-10

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