JPS55113644A - Glass composition for cathode-ray tube - Google Patents

Glass composition for cathode-ray tube

Info

Publication number
JPS55113644A
JPS55113644A JP1767679A JP1767679A JPS55113644A JP S55113644 A JPS55113644 A JP S55113644A JP 1767679 A JP1767679 A JP 1767679A JP 1767679 A JP1767679 A JP 1767679A JP S55113644 A JPS55113644 A JP S55113644A
Authority
JP
Japan
Prior art keywords
compsn
cathode
specified
glass
ray
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.)
Pending
Application number
JP1767679A
Other languages
Japanese (ja)
Inventor
Kunio Nakaguchi
Makoto Kume
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.)
Nippon Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass Co 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 Nippon Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Priority to JP1767679A priority Critical patent/JPS55113644A/en
Publication of JPS55113644A publication Critical patent/JPS55113644A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

PURPOSE: To provide high X-ray stopping power to a glass compsn. for a color TV Braun tube, etc.; inhibit the discoloration of the compsn.; facilitate the molding; and reduce the cost by using PbO-free glass having a specified compsn., a specified X-ray absorption coefficient and a specified thermal expansion coefficient.
CONSTITUTION: A PbO-free glass compsn. for a cathode-ray tube consists of, by wt., SiO2 50W65%, AlO3 0W3%, MgO 0W6%, CaO 0W6%, SrO 0W10%, BaO 0W15%, ZrO2 5W15%, Li2O 0W3%, Na2O 5W16%, K2O 0W10%, TiO2 0W1%, CeO2 0.1W1.6% and As2O3 or Sb2O3 0.1W1.5% and satisfies SiO2+Al2O3+ ZrO2= 60W75%, MgO+CaO≤6%, 0.5BaO+SrO+Zr2O3≥15% and Li2O+Na2O+K2O= 13W20%. This glass has an X-ray absorption coefficient of 25cm-1 or more at 0.6Å wavelength and an average thermal expansion coefficient of 90W110-7cm/cm.°C at 50W350°C. Thus, superior performance is obtd. with the effective range of each component.
COPYRIGHT: (C)1980,JPO&Japio
JP1767679A 1979-02-17 1979-02-17 Glass composition for cathode-ray tube Pending JPS55113644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1767679A JPS55113644A (en) 1979-02-17 1979-02-17 Glass composition for cathode-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1767679A JPS55113644A (en) 1979-02-17 1979-02-17 Glass composition for cathode-ray tube

Publications (1)

Publication Number Publication Date
JPS55113644A true JPS55113644A (en) 1980-09-02

Family

ID=11950449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1767679A Pending JPS55113644A (en) 1979-02-17 1979-02-17 Glass composition for cathode-ray tube

Country Status (1)

Country Link
JP (1) JPS55113644A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376829A (en) * 1980-06-12 1983-03-15 Nippon Electric Glass Company, Limited Glass for use in monochromatic colored light emitting cathode ray tubes
JPS58154787A (en) * 1982-03-10 1983-09-14 Mitsubishi Electric Corp Projection-type cathode ray tube
US4520115A (en) * 1982-08-02 1985-05-28 Schott Glaswerke High absorbance Pb-containing glass for cathode ray tube picture screen
JPS63156038A (en) * 1986-11-04 1988-06-29 コーニング　グラス　ワークス Glass for cathode ray tube face plate
JPH0269333A (en) * 1988-08-31 1990-03-08 Corning Inc Glass for surface plate of projection receiving tube and surface plate
JP2016169154A (en) * 2009-07-03 2016-09-23 コミッサリア ア ロンネルジー アトミック エ オ ゾンネルジー ザルテルナティーフ Glass compositions for gaskets of apparatuses operating at high temperatures and assembling method using them
CN111018358A (en) * 2020-01-02 2020-04-17 泰山玻璃纤维邹城有限公司 Alkali-free superfine glass fiber formula

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376829A (en) * 1980-06-12 1983-03-15 Nippon Electric Glass Company, Limited Glass for use in monochromatic colored light emitting cathode ray tubes
JPS58154787A (en) * 1982-03-10 1983-09-14 Mitsubishi Electric Corp Projection-type cathode ray tube
JPS628473B2 (en) * 1982-03-10 1987-02-23 Mitsubishi Electric Corp
US4520115A (en) * 1982-08-02 1985-05-28 Schott Glaswerke High absorbance Pb-containing glass for cathode ray tube picture screen
JPS63156038A (en) * 1986-11-04 1988-06-29 コーニング　グラス　ワークス Glass for cathode ray tube face plate
JPH0269333A (en) * 1988-08-31 1990-03-08 Corning Inc Glass for surface plate of projection receiving tube and surface plate
JP2016169154A (en) * 2009-07-03 2016-09-23 コミッサリア ア ロンネルジー アトミック エ オ ゾンネルジー ザルテルナティーフ Glass compositions for gaskets of apparatuses operating at high temperatures and assembling method using them
CN111018358A (en) * 2020-01-02 2020-04-17 泰山玻璃纤维邹城有限公司 Alkali-free superfine glass fiber formula
CN111018358B (en) * 2020-01-02 2020-11-10 泰山玻璃纤维邹城有限公司 Alkali-free superfine glass fiber formula

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