| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a manufacturing method of a glass plate capable of obtaining sufficiently uniform molten glass by acquiring a passage for molten glass flow.SOLUTION: A manufacturing method of a glass plate includes an agitation step for agitating molten glass using a stirrer. The stirrer is equipped with a rotation axis and a plurality of impellers each arranged distant from each other. The impeller has a plurality of support parts, a first blade member of a concave shape on a surface of the support part, and a second blade member of a convex shape on another surface of the support part, and has a passage formed between both surfaces of the support part. In the agitation step, the molten glass flows in the first direction from the inside wall of an agitation tank toward the first blade member, and then toward the second blade member through the passage, and further flows in the second direction toward the inside wall of the agitation tank.</p> |
