TEMPERED GLASS-PRODUCING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide technology capable of restraining cost increase in producing tempered glass. SOLUTION: A temperature distribution adjusting part 20 is composed of partitions 21... on the underside of an upper air chamber 32 which compartmentalizes nozzle tubes at least in the front row from one another, gates 25... for closing openings 24... between adjacent partitions 21... on the side of a heating furnace, and an opening-adjusting mechanism 26 for adjusting openings of the openings 24... and adjusting air quantity escaping to the side of a heating furnace. Temperature distribution in the cross direction of a glass pane is adjusted by making differences in openings of plural openings 24.