FR2148628A1 - Tempering glass plates - edges protected against too rapid cooling - Google Patents

Tempering glass plates - edges protected against too rapid cooling

Info

Publication number
FR2148628A1
FR2148628A1 FR7229124A FR7229124A FR2148628A1 FR 2148628 A1 FR2148628 A1 FR 2148628A1 FR 7229124 A FR7229124 A FR 7229124A FR 7229124 A FR7229124 A FR 7229124A FR 2148628 A1 FR2148628 A1 FR 2148628A1
Authority
FR
France
Prior art keywords
glass plates
protected against
rapid cooling
tempering glass
glass
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.)
Withdrawn
Application number
FR7229124A
Other languages
French (fr)
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.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
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 PPG Industries Inc filed Critical PPG Industries Inc
Publication of FR2148628A1 publication Critical patent/FR2148628A1/en
Withdrawn legal-status Critical Current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
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
    • C03C8/10—Frit compositions, i.e. in a powdered or comminuted form containing lead
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B27/00—Tempering or quenching glass products
    • C03B27/02—Tempering or quenching glass products using liquid
    • C03B27/022—Tempering or quenching glass products using liquid the liquid being organic, e.g. an oil
    • 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
    • C03C4/00—Compositions for glass with special properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

Substance having a coefft. of thermal expansion and/or coefft. of heat conductivity not exceeding those of the glass, and an m.pt. below that of the glass is applied onto >=1 edge of a glass plate (that to be first immersed into the cooling liquid), which is going to be tempered by heating to a temp. above the strain point in the vicinity of the softening point and then cooling to a temp. below the strain point by immersion in a cooling liquid (at 95-230 degrees C). By this method, cracking of glass plates edges is avoided.
FR7229124A 1971-08-12 1972-08-11 Tempering glass plates - edges protected against too rapid cooling Withdrawn FR2148628A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17132471A 1971-08-12 1971-08-12
US25335472A 1972-05-15 1972-05-15

Publications (1)

Publication Number Publication Date
FR2148628A1 true FR2148628A1 (en) 1973-03-23

Family

ID=26866970

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7229124A Withdrawn FR2148628A1 (en) 1971-08-12 1972-08-11 Tempering glass plates - edges protected against too rapid cooling

Country Status (6)

Country Link
JP (1) JPS4828017A (en)
AU (1) AU4435172A (en)
BE (1) BE787452A (en)
DE (1) DE2238645A1 (en)
FR (1) FR2148628A1 (en)
IT (1) IT964930B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361310A1 (en) * 1976-05-07 1978-03-10 Asahi Glass Co Ltd TEMPERING PROCESS FOR A GLASS PRODUCT
FR2438631A1 (en) * 1978-10-10 1980-05-09 Corning Glass Works FONDANT FOR VITREOUS ENAMEL AND ENAMELLED ARTICLE

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1442319A (en) * 1973-07-20 1976-07-14 Triplex Safety Glass Co Glass toughening mthods
JPS5823137Y2 (en) * 1973-08-22 1983-05-18 三菱電線工業株式会社 Tsuushinke Bruno Yoriyawasesouchi
JPS5722897B2 (en) * 1973-09-18 1982-05-15
JPS5860815U (en) * 1981-10-20 1983-04-23 株式会社フジクラ Striatal twisting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361310A1 (en) * 1976-05-07 1978-03-10 Asahi Glass Co Ltd TEMPERING PROCESS FOR A GLASS PRODUCT
FR2438631A1 (en) * 1978-10-10 1980-05-09 Corning Glass Works FONDANT FOR VITREOUS ENAMEL AND ENAMELLED ARTICLE

Also Published As

Publication number Publication date
BE787452A (en) 1973-02-12
AU4435172A (en) 1974-01-10
JPS4828017A (en) 1973-04-13
IT964930B (en) 1974-01-31
DE2238645A1 (en) 1973-02-22

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Legal Events

Date Code Title Description
ST Notification of lapse