| 摘要 |
<p>This method for producing a glass plate involves: a step of conveying a molten glass containing at least SnO2 from a melting tank (101) to a fining tank (102) via a first transferring pipe (105a) (connection pipe) made of platinum or a platinum alloy; and a fining step of removing bubbles contained in the molten glass out from the molten glass inside the fining tank (102) which is made of platinum or a platinum alloy and has a space for containing a gas caused by the removal of bubbles. In this method for producing a glass plate, the molten glass is heated to a temperature of 1500-1690°C in the first transferring pipe (105a) (connection pipe), and the molten glass is heated to a temperature of 1600-1780°C in the fining tank (102). The temperature of the molten glass in the fining tank (102) is higher than the temperature of the molten glass in the first transferring pipe (105a) (connection pipe).</p> |
