Title:
ガラス板の製造方法
Document Type and Number:
Japanese Patent JP5329725
Kind Code:
B1
Abstract:
This method for manufacturing a glass plate includes a melting step, a fining step, and a forming step. In the melting step, molten glass is produced by using at least electrical heating to melt a glass feedstock containing SnO2 as a fining agent. The fining step includes the following: a bubble-removal process, after the melting step, in which the temperature of the molten glass is raised to at least 1,630°C at a rate of at least 2°C/min so as to generate bubbles therein in order to perform bubble removal; and an absorption process, after the bubble-removal process, in which the temperature of the molten glass is reduced so as to make the molten glass absorb the bubbles therein. In the forming step, the post-fining-step molten glass is formed into plate glass.
Inventors:
Kimishima Tetsuro
Hitoshi Tsuruga
Hitoshi Tsuruga
Application Number:
JP2013509382A
Publication Date:
October 30, 2013
Filing Date:
October 11, 2012
Export Citation:
Assignee:
avanstrate corporation
International Classes:
C03B5/225; C03B5/235; C03B17/06; C03C3/091; F27D11/02; G02F1/1333
Domestic Patent References:
JP2010111533A | 2010-05-20 | |||
JP2010523457A | 2010-07-15 | |||
JP2007039324A | 2007-02-15 |
Foreign References:
WO2012133467A1 | 2012-10-04 | |||
WO2010093571A2 | 2010-08-19 | |||
WO2008007676A1 | 2008-01-17 |
Attorney, Agent or Firm:
Global IP Tokyo Patent Business Corporation
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