Bottom mold for molding a glass panel for a cathode ray tube and method for producing a glass panel for a cathode ray tube

摘要

A bottom mold for molding a glass panel for a cathode ray tube includes a hollow portion defined by a rectangular bottom wall 2 and a side wall 3 provided on four sides of the bottom wall. A refrigerant is supplied to a central portion of the bottom wall 2 from under the bottom wall to cool a glass panel for a cathode ray tube 5 to be filled in the hollow portion. The bottom wall 2 has a hollow layer 4 provided at the central portion to enhance cooling of a peripheral portion of the bottom mold by preventing the central portion from being excessively cooled.