DE2634617A1 - Verfahren zur herstellung von magnetitkugeln und einrichtung zur durchfuehrung des verfahrens - Google Patents

Verfahren zur herstellung von magnetitkugeln und einrichtung zur durchfuehrung des verfahrens

Info

Publication number
DE2634617A1
DE2634617A1 DE19762634617 DE2634617A DE2634617A1 DE 2634617 A1 DE2634617 A1 DE 2634617A1 DE 19762634617 DE19762634617 DE 19762634617 DE 2634617 A DE2634617 A DE 2634617A DE 2634617 A1 DE2634617 A1 DE 2634617A1
Authority
DE
Germany
Prior art keywords
arc
cooling
particles
chamber
heated gas
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.)
Ceased
Application number
DE19762634617
Other languages
German (de)
English (en)
Inventor
Maurice G Fey
Ii Francis J Harvey
Paul E Martin
Charles B Wolf
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of DE2634617A1 publication Critical patent/DE2634617A1/de
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70678—Ferrites
    • G11B5/70684—Ferro-ferrioxydes
    • G11B5/70689—Magnetite
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/08—Ferroso-ferric oxide [Fe3O4]
    • 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
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/653—Processes involving a melting step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Compounds Of Iron (AREA)
  • Discharge Heating (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Furnace Details (AREA)
DE19762634617 1975-08-11 1976-07-31 Verfahren zur herstellung von magnetitkugeln und einrichtung zur durchfuehrung des verfahrens Ceased DE2634617A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60357875A 1975-08-11 1975-08-11

Publications (1)

Publication Number Publication Date
DE2634617A1 true DE2634617A1 (de) 1977-02-17

Family

ID=24416039

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762634617 Ceased DE2634617A1 (de) 1975-08-11 1976-07-31 Verfahren zur herstellung von magnetitkugeln und einrichtung zur durchfuehrung des verfahrens

Country Status (7)

Country Link
US (1) US4071588A (enExample)
JP (1) JPS6021926B2 (enExample)
CA (1) CA1086914A (enExample)
CH (1) CH605415A5 (enExample)
DE (1) DE2634617A1 (enExample)
FR (1) FR2320905A1 (enExample)
GB (1) GB1557729A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118751894A (zh) * 2024-09-09 2024-10-11 成都卫达机械制造有限公司 一种压铸模具

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH616348A5 (enExample) * 1977-04-29 1980-03-31 Alusuisse
US4162291A (en) * 1977-10-12 1979-07-24 Westinghouse Electric Corp. Liquid silicon casting control mechanism
CH635050A5 (de) * 1977-12-08 1983-03-15 Alusuisse Verfahren zum rundschmelzen von magnetisch weichen ferriten.
JPS5820486Y2 (ja) * 1978-02-24 1983-04-28 凸版印刷株式会社 充填ノズル
US4264354A (en) * 1979-07-31 1981-04-28 Cheetham J J Method of making spherical dental alloy powders
JPS58192202U (ja) * 1982-06-16 1983-12-21 須川工業株式会社 粘着性食品の定量取出し機
JPS6111301A (ja) * 1984-06-15 1986-01-18 日本油脂株式会社 油中水型エマルション爆薬を包装機へ供給する装置
JPS6197135A (ja) * 1984-10-16 1986-05-15 Sumitomo Metal Ind Ltd フェライト用酸化鉄の製造方法
US4668853A (en) * 1985-10-31 1987-05-26 Westinghouse Electric Corp. Arc-heated plasma lance
JPH0235601Y2 (enExample) * 1986-08-06 1990-09-27
US4864096A (en) * 1987-12-18 1989-09-05 Westinghouse Electric Corp. Transfer arc torch and reactor vessel
JPH0537094U (ja) * 1991-10-23 1993-05-21 四国化工機株式会社 具入り粘性食品の充填装置
US7118728B2 (en) * 2002-05-08 2006-10-10 Steward Advanced Materials, Inc. Method and apparatus for making ferrite material products and products produced thereby
KR102352824B1 (ko) 2017-11-09 2022-01-17 레온 지도키 가부시키가이샤 식품 재료 토출 장치 및 그 운전 방법, 포피 식품 제조 장치
JP7157263B2 (ja) * 2019-07-01 2022-10-19 オークウッド ラボラトリーズ，エル．エル．シー． ミクロスフェア及びエマルションを製造するためのシステム及び方法
WO2025128774A1 (en) 2023-12-13 2025-06-19 Dow Global Technologies Llc Method for making methylene dianiline and polymethylene polyanilines
WO2025128775A1 (en) 2023-12-13 2025-06-19 Dow Global Technologies Llc Method for making polymethylene polyanilines using lewis acid-modified clay catalysts

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT231020B (de) * 1961-10-09 1964-01-10 Oesterr Studien Atomenergie Vorrichtung zur Herstellung kugelförmiger Teilchen
FR1414352A (fr) * 1963-11-18 1965-10-15 Knapsack Ag Procédé de préparation de magnétite pulvérulente à particules de surface lisse et arrondie
US3708409A (en) * 1969-05-22 1973-01-02 Ionarc Smelters Ltd Chemical process in high enthalpy thermal environment and apparatus therefor
US3749763A (en) * 1971-08-03 1973-07-31 Humphreys Corp Processing of silicate ores and product thereof
US3765870A (en) * 1971-12-15 1973-10-16 Westinghouse Electric Corp Method of direct ore reduction using a short cap arc heater
GB1493394A (en) * 1974-06-07 1977-11-30 Nat Res Dev Plasma heater assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118751894A (zh) * 2024-09-09 2024-10-11 成都卫达机械制造有限公司 一种压铸模具

Also Published As

Publication number Publication date
FR2320905A1 (fr) 1977-03-11
CA1086914A (en) 1980-10-07
FR2320905B1 (enExample) 1982-12-31
JPS6021926B2 (ja) 1985-05-30
US4071588A (en) 1978-01-31
GB1557729A (en) 1979-12-12
CH605415A5 (enExample) 1978-09-29
JPS5222600A (en) 1977-02-19

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8131 Rejection