Manufacturing method for sheet glass and manufacturing method for glass substrate
AssigneeFurukawa Electric Co., Ltd.
InventorsKousuke Nakao, Toshiyuki Asai
Life of this patent
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Abstract
A method of manufacturing a sheet glass includes: a re-draw process forming a sheet glass by, heating and softening a glass preform manufactured by float method, and extending the glass preform to a desirable plate thickness. An extension direction in which the glass preform is extended by the re-draw process is 90 degrees with respect to a direction in which molten glass is fed in the float method.
Claims5
A method of manufacturing a sheet glass, the method comprising a re-draw process forming a sheet glass by, heating and softening a glass preform manufactured by float method, and extending the glass preform to a desirable plate thickness, wherein
- an extension direction in which the glass preform is extended by the re-draw process is 90 degrees with respect to a direction in which molten glass is fed in the float method.
A method of manufacturing a glass substrate, the method comprising:
- a sheet-glass-manufacturing process of manufacturing a sheet glass by performing a re-draw process of forming the sheet glass by, heating and softening a glass preform manufactured by a float method, and extending the glass preform to a desirable plate thickness, wherein an extension direction in which the glass preform is extended by the re-draw process is 90 degrees with respect to a direction in which molten glass is fed in the float method;
- and
- a coring process of coring the sheet glass to form glass substrates in one line so that centers of the glass substrates are positioned substantially on a center of the sheet glass in a width direction.
Dependencies are inferred from the claim text.