| 摘要 |
PROBLEM TO BE SOLVED: To provide a production method of a glass plate capable of preventing devitrification from occurring locally in the glass plate.SOLUTION: A method includes a melting step of producing molten glass by melting a glass raw material containing at least Si and a volatile component more volatile than Si in a glass melting state, a molding step of forming a glass ribbon by molding the molten glass by using an overflow downdraw method, a slow cooling step of cooling the glass ribbon, and a cutting step of forming the glass plate by cutting the glass ribbon. In the molding step, a volatilization suppressing treatment is performed for at least suppressing volatilization of the volatile component from the molten glass. |
