JPS564209A - Manufacture of oxide core for discharge-lamp light source - Google Patents

Manufacture of oxide core for discharge-lamp light source

Info

Publication number
JPS564209A
JPS564209A JP8037979A JP8037979A JPS564209A JP S564209 A JPS564209 A JP S564209A JP 8037979 A JP8037979 A JP 8037979A JP 8037979 A JP8037979 A JP 8037979A JP S564209 A JPS564209 A JP S564209A
Authority
JP
Japan
Prior art keywords
ferrite
manufacture
discharge
light source
lamp light
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.)
Granted
Application number
JP8037979A
Other languages
Japanese (ja)
Other versions
JPS6331927B2 (en
Inventor
Tadakatsu Sano
Hiroshi Harada
Tadashi Mitsui
Hiroshi Hatakeyama
Toshio Saito
Takeo Kitagawa
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP8037979A priority Critical patent/JPS564209A/en
Publication of JPS564209A publication Critical patent/JPS564209A/en
Publication of JPS6331927B2 publication Critical patent/JPS6331927B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H01F1/34—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 non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite 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
    • C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
    • C04B35/2616—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing lithium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE:To obtain high-quality discharge lamps without oxidizing ferrite, by burning a sintered ferrite body containing components of a four-element system of LiO, MnO, ZnO, and Fe2O3 as a basic texture, and heat-treating the surface thereof at or below the specified temperature. CONSTITUTION:A sintered ferrite body containing components of four-element system of LiO, MnO, and Fe2O3 as a basic texture is turned in a specified atmosphere. The surface of said ferrite is heat-treated in the air, and a paint is applied on the surface. Thereafter the ferrite core is sealed in a discharge lamp. In this case, the heat treating is performed in the air at or below 460 deg.C. Therefore the ferrite core can be sealed into quartz glass without oxidizing the ferrite core, thereby the high quality discharge lamp can be obtained.
JP8037979A 1979-06-26 1979-06-26 Manufacture of oxide core for discharge-lamp light source Granted JPS564209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8037979A JPS564209A (en) 1979-06-26 1979-06-26 Manufacture of oxide core for discharge-lamp light source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8037979A JPS564209A (en) 1979-06-26 1979-06-26 Manufacture of oxide core for discharge-lamp light source

Publications (2)

Publication Number Publication Date
JPS564209A true JPS564209A (en) 1981-01-17
JPS6331927B2 JPS6331927B2 (en) 1988-06-27

Family

ID=13716638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8037979A Granted JPS564209A (en) 1979-06-26 1979-06-26 Manufacture of oxide core for discharge-lamp light source

Country Status (1)

Country Link
JP (1) JPS564209A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54145996A (en) * 1978-05-02 1979-11-14 Thomson Csf Soft litiummtitaniummzinc ferrite and electromagnetic deflector employing same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54145996A (en) * 1978-05-02 1979-11-14 Thomson Csf Soft litiummtitaniummzinc ferrite and electromagnetic deflector employing same

Also Published As

Publication number Publication date
JPS6331927B2 (en) 1988-06-27

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