GB1386784A - Treatment of glass - Google Patents

Treatment of glass

Info

Publication number
GB1386784A
GB1386784A GB977471A GB977471A GB1386784A GB 1386784 A GB1386784 A GB 1386784A GB 977471 A GB977471 A GB 977471A GB 977471 A GB977471 A GB 977471A GB 1386784 A GB1386784 A GB 1386784A
Authority
GB
United Kingdom
Prior art keywords
glass
active material
fluidized
bed temperature
article
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
GB977471A
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.)
OI Glass Ltd
Original Assignee
United Glass 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 United Glass Ltd filed Critical United Glass Ltd
Priority to GB977471A priority Critical patent/GB1386784A/en
Priority to FR7235039A priority patent/FR2201264A1/fr
Priority to DE19722248433 priority patent/DE2248433A1/en
Publication of GB1386784A publication Critical patent/GB1386784A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C21/00Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/007Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in gaseous phase
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C23/00Other surface treatment of glass not in the form of fibres or filaments

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)
  • Surface Treatment Of Glass (AREA)

Abstract

1386784 Strengthening glass UNITED GLASS Ltd 19 July 1972 [19 April 1971] 9774/71 Heading C1M A glass article is strengthened by immersion in a fluidized bed, the fluidized material comprising a solid inert material and an active material at least a proportion of which is in vapour form at the bed temperature, the fluidized bed temperature being below the softening point of the glass but not less than 100‹ C. below the strain point, the article being brought to not more than 50‹ C. below the bed temperature before immersion, and causing the active material to react with the glass. The active material may be boric acid or an organic borate; or may be an ion-exchange material, e.g. CuCl, LiCl or KCl. The inert material, which preferably constitutes 90-99À9% by weight of the fluidized material, may be silicon carbide, tungsten, molybdenum, nickel, talc or zirconia. The active material may be coated on or mixed with the inert material. The fluidizing gas may be air, nitrogen, carbon monoxide or helium. Carbon may be mixed with the active material to maintain the gas non-oxidizing. The glass article, which may be a sheet or hollow, necked container, may be annealed after the strengthening.
GB977471A 1971-04-19 1971-04-19 Treatment of glass Expired GB1386784A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB977471A GB1386784A (en) 1971-04-19 1971-04-19 Treatment of glass
FR7235039A FR2201264A1 (en) 1971-04-19 1972-10-03
DE19722248433 DE2248433A1 (en) 1971-04-19 1972-10-03 PROCESS FOR IMPROVING THE STRENGTH OF GLASS OBJECTS

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB977471A GB1386784A (en) 1971-04-19 1971-04-19 Treatment of glass
FR7235039A FR2201264A1 (en) 1971-04-19 1972-10-03
DE19722248433 DE2248433A1 (en) 1971-04-19 1972-10-03 PROCESS FOR IMPROVING THE STRENGTH OF GLASS OBJECTS

Publications (1)

Publication Number Publication Date
GB1386784A true GB1386784A (en) 1975-03-12

Family

ID=27184758

Family Applications (1)

Application Number Title Priority Date Filing Date
GB977471A Expired GB1386784A (en) 1971-04-19 1971-04-19 Treatment of glass

Country Status (3)

Country Link
DE (1) DE2248433A1 (en)
FR (1) FR2201264A1 (en)
GB (1) GB1386784A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290793A (en) 1978-12-08 1981-09-22 Liberty Glass Company Fluid bed chemical strengthening of glass objects
GB2171990A (en) * 1985-03-08 1986-09-10 Central Glass Co Ltd Method of strengthening glass article formed of float glass by ion exchange and strengthened glass article

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290793A (en) 1978-12-08 1981-09-22 Liberty Glass Company Fluid bed chemical strengthening of glass objects
GB2171990A (en) * 1985-03-08 1986-09-10 Central Glass Co Ltd Method of strengthening glass article formed of float glass by ion exchange and strengthened glass article

Also Published As

Publication number Publication date
FR2201264A1 (en) 1974-04-26
DE2248433A1 (en) 1974-04-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee