PLATE GLASS MANUFACTURING DEVICE AND PLATE GLASS MANUFACTURING METHOD

摘要

A flat glass production apparatus includes a molten glass ribbon supply part supplying a continuous flow of molten glass to a forming part as a glass ribbon of a formable temperature; the forming part including a plurality of tension rollers for forming the glass ribbon of the formable temperature supplied from the molten glass ribbon supply part into a glass ribbon of an unformable temperature; and a carriage part carrying out the glass ribbon of the unformable temperature on a downstream side of the forming part, and is characterized in that all the plurality of tension rollers or all the plurality of tension rollers excluding a first tension roller are steam generating tension rollers made of a roll base capable of containing a steam film forming agent therein and having a structure in which steam generated from the steam film forming agent contained in the roll base is supplied between a circumferential face of the tension roller and a face of the glass ribbon.