| 摘要 |
A method of manufacturing glass melt and a method of manufacturing molded glass material by forming glass melt. In the method of manufacturing glass melt, the glass melt containing fluorine is prepared by melting glass raw materials and refining the resulting glass melt. The refining is conducted in a refining vat equipped with a flow inlet through which flows glass melt obtained by heating and melting the glass raw materials, and a flow outlet through which flows glass melt that has been refined, with the level of the glass melt being maintained in such a manner that the flow inlet and flow outlet remain beneath the surface of the glass melt and the glass melt does not contact external air. The method of manufacturing a molded glass material comprises the step of molding the glass melt produced by the above method.
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