METHOD FOR STABLE MANUFACTURE OF CONTINUOUS SHEET GLASS

摘要

PROBLEM TO BE SOLVED: To stably form high-quality sheet glass having excellent homogeneity, thickness uniformity and surface smoothness. SOLUTION: The opposite side surface of the thin film layer 18 of a vapor film of a glass ribbon GL is brought into contact with gas having low thermal conductivity to form the environment for adiabatic the glass ribbon GL by the gas and the thin layer 18 of the vapor film. Holding of the water of the volume greater than the volume calculated in accordance with a prescribed equation by the supporting body 12 is made possible in this state.