Method for manufacturing float glass, and float glass
AssigneeAsahi Glass Company, Limited
InventorsShiro TANII, Takenori MIURA
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Abstract
The present invention provides a tin alloy bath for a float bath, an apparatus for manufacturing a float glass, a method for manufacturing a float glass that can provide a high quality float glass in which defects due to coagulation and falling of a volatile tin component have been suppressed, and a float glass manufactured using those. The above-mentioned tin alloy bath for a float bath is a molten metal bath to be placed in the float bath for supplying molten glass to a liquid surface of the molten metal bath, thereby forming into a glass ribbon, and includes 1 mass % or more of copper with the remainder being unavoidable impurities and tin.
Claims5
A method for manufacturing a float glass, comprising:
- supplying molten glass to a liquid surface of a molten metal bath placed in a float bath, thereby forming into a glass ribbon;
- lifting the glass ribbon from the liquid surface of the molten metal bath, followed by annealing and cutting to obtain a float glass,
- wherein the molten metal bath is a tin alloy bath for a float bath, which comprises 1 mass % or more and 40 mass % or less of copper with the remainder being unavoidable impurities and tin, and
- a temperature of a region at which the glass ribbon is lifted from the liquid surface of the molten metal bath in the float bath is 700° C. or higher.
Dependencies are inferred from the claim text.