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ES290166A1 - Improvements in or relating to the manufacture of flat glass - Google Patents

Improvements in or relating to the manufacture of flat glass

Info

Publication number
ES290166A1
ES290166A1 ES0290166A ES290166A ES290166A1 ES 290166 A1 ES290166 A1 ES 290166A1 ES 0290166 A ES0290166 A ES 0290166A ES 290166 A ES290166 A ES 290166A ES 290166 A1 ES290166 A1 ES 290166A1
Authority
ES
Spain
Prior art keywords
glass
bath
magnesium
sodium
ribbon
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
ES0290166A
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.)
Pilkington Group Ltd
Original Assignee
Pilkington Brothers 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 Pilkington Brothers Ltd filed Critical Pilkington Brothers Ltd
Publication of ES290166A1 publication Critical patent/ES290166A1/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B18/00Shaping glass in contact with the surface of a liquid
    • C03B18/02Forming sheets
    • C03B18/18Controlling or regulating the temperature of the float bath; Composition or purification of the float bath
    • 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
    • C03C21/001Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Glass Compositions (AREA)
  • Catalysts (AREA)

Abstract

In the manufacture of flat glass during which the glass is in contact with molten metal, there is maintained within the molten metal at least a trace of an element with which an impurity in the metal preferentially reacts. Preferably a ribbon of glass is supported on a bath of molten tin or tin alloy covered by a plenum of a protective atmosphere. There is incorporated in the molten metal a trace of an element selected from lithium, sodium, potassium, magnesium, calcium, barium, aluminium, indium, titanium, vanadium, chromium, manganese, iron, zinc, zirconium, niobium, carbon and silicon. Preferably a concentration of 50 p.p.m. of sodium as a sodium/tin alloy or 10 p.p.m. of magnesium of a magnesium/tin alloy is used and is sufficient to ensure that any impurity such as oxygen and/or sulphur always reacts, and also forms a means for controlling migration of tin into the underface of the glass ribbon. The titanium, vanadium, chromium, niobium, zirconium or silicon, which are insoluble in the bath, may be used as grids immersed in the bath, the oxygen or sulphur reaction product forming on the grid, which may be removed and cleaned. A ribbon of glass formed in this way has a "fire-finished" quality.
ES0290166A 1962-07-30 1963-07-20 Improvements in or relating to the manufacture of flat glass Expired ES290166A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2922862A GB1014515A (en) 1962-07-30 1962-07-30 Improvements in or relating to the manufacture of flat glass

Publications (1)

Publication Number Publication Date
ES290166A1 true ES290166A1 (en) 1963-10-16

Family

ID=10288175

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0290166A Expired ES290166A1 (en) 1962-07-30 1963-07-20 Improvements in or relating to the manufacture of flat glass

Country Status (11)

Country Link
AT (1) AT251218B (en)
BE (1) BE635587A (en)
CH (1) CH416959A (en)
CS (1) CS162701B2 (en)
DE (1) DE1214363B (en)
DK (1) DK113947B (en)
ES (1) ES290166A1 (en)
FI (1) FI42862B (en)
GB (1) GB1014515A (en)
LU (1) LU44136A1 (en)
NL (1) NL295912A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007022480B9 (en) 2007-05-14 2010-04-29 Schott Ag Method and device for separating contaminants from the bath metal from float glass plants
CN113912268A (en) * 2021-11-09 2022-01-11 中国洛阳浮法玻璃集团有限责任公司 Method for reducing lower surface tin penetration in float glass manufacturing process

Also Published As

Publication number Publication date
FI42862B (en) 1970-08-03
CS162701B2 (en) 1975-07-15
GB1014515A (en) 1965-12-31
AT251218B (en) 1966-12-27
LU44136A1 (en) 1965-01-25
NL295912A (en)
DK113947B (en) 1969-05-12
BE635587A (en)
DE1214363B (en) 1966-04-14
CH416959A (en) 1966-07-15

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