GLASS PLATE-MANUFACTURING APPARATUS, AND GLASS PLATE-MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To prevent fracture at a joint face between a flange part and tube part of a passage tube composing a glass plate-manufacturing apparatus.;SOLUTION: A glass plate-manufacturing apparatus comprises at least: a melting unit; a clarifying unit; an agitating unit; a molding unit; and a passage tube which connects the respective units and in which molten glass flows. The passage tube is composed of a tube having a flange at at least one end and has a joint part between a flange and the tube. The flange is made of one kind of material selected from platinum and a platinum alloy, while the tube is made of a material other than platinum and the platinum alloy. The joint part of the flange and the tube is formed of a curved surface.;COPYRIGHT: (C)2015,JPO&INPIT