BOTTOM MOLD FOR MOLDING GLASS PANEL FOR CATHODE RAY TUBE AND METHOD FOR MANUFACTURING GLASS PANEL FOR CATHODE RAY TUBE

摘要

PURPOSE: A bottom mold for molding a glass panel for a cathode ray tube is provided to prevent a central portion of a bottom part from being excessively cooled and to cool a peripheral portion of the bottom part more intensively relative to the central portion. CONSTITUTION: The bottom mold(1) for molding a glass panel for a cathode ray tube includes a glass filling portion defined by a rectangular bottom part(2) and a side wall part(3) formed on four sides of the bottom part(2), wherein the bottom part(2) has a hollow layer(4) provided at the central portion. The refrigerant is supplied to the central portion of the bottom part(2) of the bottom mold(1) from a lower end of the bottom part(2) to cool the glass panel(5) for the cathode ray tube in the glass filling portion.