ES367325A1 - Method of making vacuum-type seals in glass vessels - Google Patents

Method of making vacuum-type seals in glass vessels

Info

Publication number
ES367325A1
ES367325A1 ES367325A ES367325A ES367325A1 ES 367325 A1 ES367325 A1 ES 367325A1 ES 367325 A ES367325 A ES 367325A ES 367325 A ES367325 A ES 367325A ES 367325 A1 ES367325 A1 ES 367325A1
Authority
ES
Spain
Prior art keywords
glass
coefficient
sealing
thermal expansion
basic
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
ES367325A
Other languages
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES367325A1 publication Critical patent/ES367325A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/26—Sealing together parts of vessels
    • H01J9/263—Sealing together parts of vessels specially adapted for cathode-ray tubes
    • 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
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/06—Joining glass to glass by processes other than fusing
    • C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
    • 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
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
    • 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
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
    • C03C3/074—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron containing zinc
    • C03C3/0745—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron containing zinc containing more than 50% lead oxide, by weight
    • 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
    • C03C3/12—Silica-free oxide glass compositions
    • C03C3/14—Silica-free oxide glass compositions containing boron
    • C03C3/142—Silica-free oxide glass compositions containing boron containing lead
    • 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
    • C03C3/12—Silica-free oxide glass compositions
    • C03C3/14—Silica-free oxide glass compositions containing boron
    • C03C3/145—Silica-free oxide glass compositions containing boron containing aluminium or beryllium

Abstract

Glass vacuum vessels, particularly colour television tubes, are vacuum-tight sealed by a non-crystallizing sealing glass with sealing temperature below the deformation temperature of the glass parts, the sealing glass being an intimate mixture of a comminuted basic glass with not more than 20% by weight of a comminuted addition of which more than 50% by weight consists of a glass with a coefficient of thermal expansion of less than 40 x 10-7, and wherein the coefficient of thermal expansion of the basic glass is higher than that of the glass parts and the coefficient of thermal expansion of the sealing glass is less than that of the basic sealing glass. The addition, preferably 4-16% of the basic glass, may be entirely or substantially of quartz glass, borosilicate glass having a coefficient of thermal expansion of 38 x 10-7 or an aluminosilicate glass having a coefficient of thermal expansion of 8 x 10-7. Small amounts of alumina or zirconium silicate or similar metal compounds may be added to strengthen the seal. Basic sealing glasses suggested lie within the ranges in percentages by weight: PbO 70-85 B 2 O 3 10-21 ZnO 0-4À5 Al 2 O 3 0-10 SiO 2 0-4À5 CoO 0-0À6.
ES367325A 1968-05-18 1969-05-16 Method of making vacuum-type seals in glass vessels Expired ES367325A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6807090A NL6807090A (en) 1968-05-18 1968-05-18

Publications (1)

Publication Number Publication Date
ES367325A1 true ES367325A1 (en) 1971-05-01

Family

ID=19803674

Family Applications (1)

Application Number Title Priority Date Filing Date
ES367325A Expired ES367325A1 (en) 1968-05-18 1969-05-16 Method of making vacuum-type seals in glass vessels

Country Status (8)

Country Link
AT (1) AT292802B (en)
BE (1) BE733210A (en)
CA (1) CA917922A (en)
DE (1) DE1920883C3 (en)
ES (1) ES367325A1 (en)
FR (1) FR2008836A1 (en)
GB (1) GB1224705A (en)
NL (1) NL6807090A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2713702B2 (en) * 1977-03-28 1979-10-31 Heimann Gmbh, 6200 Wiesbaden Gas discharge lamp
US4696909A (en) * 1986-04-07 1987-09-29 Owens-Illinois Television Products Inc. Platinum corrosion reducing premelted oxide compositions for lead containing solder glasses
FR2715925B1 (en) * 1994-02-04 1996-03-08 Thomson Csf Glass-glass sealing, production method and application to a viewing tube.
KR102653986B1 (en) * 2018-03-16 2024-04-02 덴카 주식회사 Powders and mixed powders

Also Published As

Publication number Publication date
GB1224705A (en) 1971-03-10
DE1920883C3 (en) 1979-01-18
AT292802B (en) 1971-09-10
BE733210A (en) 1969-11-17
DE1920883B2 (en) 1978-05-24
NL6807090A (en) 1969-11-20
DE1920883A1 (en) 1970-03-12
FR2008836A1 (en) 1970-01-23
CA917922A (en) 1973-01-02

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