SHEET GLASS FORMING METHOD AND SHEET GLASS FORMING DEVICE
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United States of America Patent
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Issued Date -
Dec 10, 2015
app pub date -
Apr 1, 2014
filing date -
Apr 1, 2013
priority date (Note) -
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Abstract
Provided is a glass sheet forming method, including: causing molten glass (MG), which overflows to both sides from a supply channel (2) formed along a top of a forming trough (1), to flow downward along wedge-shaped inclined surface portions (3b) of the forming trough (1) while expansion in a width direction of the molten glass (MG) is restricted with a pair of guides (4); and fusing streams of the molten glass (MG) integrally to each other at a lower end portion (5) of the forming trough (1), to thereby form a glass sheet. A value of a ratio (H/T) is set to fall within a range of from 0.8 to 1.5, where H represents a projection dimension of each of the pair of guides (4) with respect to each of the wedge-shaped inclined surface portions (3b) and T represents a thickness of the molten glass (MG) to flow downward between the pair of guides (4).
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