Production of thin plate glass

Abstract

Abstract PURPOSE:To stabilize lug parts of a thin glass plate and to prevent generation of sag in the production of plate glass by the floating process by providing a stage to a side lining of a molten metal bath at least a downstream side of a weir member, and reducing the width of the metal bath to a less width than its original value, separating thus lug parts of the molten glass at this part. CONSTITUTION:Molten glass 1 is fed to a molten glass receiver 11, then flowed to pass through a space between a weir member 10 and a molten metal 8 surface in a molten metal bath 4. On one hand, a part of the molten glass 1 is flowed through a space 28 between both side edges of the weir member 10 and a boat-shaped side lining 15 provided along a side lining 21 for both side walls 27 of the molten metal 4. Thus, the part of the molten glass is separated from a major edge part 17 of the boat-shaped side lining 15 at a stage part 16 (Fig.III) at the downstream region 22 from the weir member 10. Thus, lug parts 23 of a glass ribbon 24 is formed. The lug parts are engaged with a first top toll 18 provided to just behind the stage part 16 to retard the shrinkage of the glass ribbon 24 in the width direction.

Inventors

• 👤 Masatoshi Kimura
• 👤 木村　正敏
• 👤 Hiroshi Yamamoto
• 👤 弘 山本
• 👤 Noriaki Aoki
• 👤 能理顕 青木

Bibliographic Details