A method of making glass

Details A method of making glass A method of making glass

C - Chemistry, Metallurgy

03

C

C03C 3/087 (2006.01) C03B 5/173 (2006.01) C03C 1/10 (2006.01)

Patent

CA 2196153

A method of making glass in which a first glass composition is fed to a furnace and the densities of such glass is determined. The composition is then changed to produce a second glass which has substantially different properties from the first glass, the change to the composition being such that the desired properties are produced in the second glass whilst simultaneously maintaining the densities of the second glass substantially equal to that of the second glass. The first glass may be a clear glass whilst the second glass may be a tinted glass. In such a case, the tinted glass may contain iron and the densities are maintained substantially equal by utilising the iron to replace calcium oxide in the clear glass composition.

'invention est une méthode de fabrication du verre dans laquelle une première substance vitreuse est placée dans un four et la densité de cette substance est déterminée. Ladite substance est ensuite modifiée de façon à donner un second verre à caractéristiques substantiellement différentes de celles du premier, les propriétés désirées étant réalisées dans le second verre tout en maintenant la densité de ce dernier essentiellement égale à celle du premier. Le premier verre peut être transparent et le second, teinté. Dans ce cas, le verre teinté peut contenir du fer et les densités peuvent être maintenues essentiellement égales en remplaçant l'oxyde de calcium du verre transparent par du fer.

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