HEATING FURNACE FOR BENDING GLASS PLATE

摘要

PROBLEM TO BE SOLVED: To provide a heating furnace for bending a glass plate in which a glass plate can be heated efficiently with a regular temperature distribution while preventing dust caused by the ceiling from adhering to the furnace wall. SOLUTION: Since the inner circumferential surface of a through hole 54 in the furnace wall 50 for passing a lead terminal 52 is applied with a tubular insulator 56, surface layer on the inner circumferential surface is prevented from stripping. Furthermore, surface layer on the ceiling surface 51 can be prevented from stripping because the ceiling surface 51 is applied with a heat resistant plate 58.