| 摘要 |
<p>There are provided a stirring blade for molten glass disposed inside of a cylindrical stirring tank, comprising; a rotational shaft positioned on the rotational axis; a vertical bar-like first blade that extends in a vertical direction along the rotational axis at a position apart from the rotational shaft in a rotational radial direction; a horizontal bar-like second blade that extends along a rotational radial direction orthogonal to the rotational axis; and a disc-like third blade which is provided on an inner peripheral side of the vertical bar-like first blade and extends in a planar shape in a direction orthogonal to the rotational axis.</p> |
