摘要:
The present invention provides a tin alloy bath for a float bath, an apparatus for manufacturing a float glass, a method for manufacturing a float glass that can provide a high quality float glass in which defects due to coagulation and falling of a volatile tin component have been suppressed, and a float glass manufactured using those. The above-mentioned tin alloy bath for a float bath is a molten metal bath to be placed in the float bath for supplying molten glass to a liquid surface of the molten metal bath, thereby forming into a glass ribbon, and includes 1 mass % or more of copper with the remainder being unavoidable impurities and tin.
摘要:
A tin bath of a production line for producing flat glass, includes a crown (6) covering a vat (5), in which the liquid tin (10) is located. The crown (6) consists of a self-supporting structure (29) that rests directly on each side of the vat (5), on a supporting framework (25), via a limited, suitable number of sliding or rolling bearings (24). A method makes it possible to limit the longitudinal differential expansion between the crown (6) and the vat (5) such as to prevent deterioration of the luting seams (19) between the vat (5) and the crown (6) that can cause gas leaks between the bath environment and the outside of the vat. The method involves monitoring the longitudinal differential expansion between the vat and the crown by measuring the latter and adjusting the cooling of the vat such as to keep the differential expansion within defined limits.
摘要:
The glass sheet of the present invention is a glass sheet with a thickness of 1.6 mm or less produced by a float process in which a molten glass material is formed into a sheet on a molten metal. When one surface of the glass sheet kept in contact with the molten metal during the formation of the molten glass material into the glass sheet is defined as a first surface and the other surface of the glass sheet opposite to the first surface is defined as a second surface, at least the first surface has a protective coating formed thereon by dealkalization, and the second surface has an etching rate of 2 nm/min or less when the second surface is etched using 0.1 mass % hydrofluoric acid at 50° C. as an etching liquid.
摘要:
The present invention relates to a float glass manufactured by causing a molten glass continuously supplied onto a molten tin in a bath to flow on the molten tin toward an outlet of the bath, in which the float glass satisfies the following formula (1). According to the present invention, a high-quality float glass and a method for manufacturing the same are provided. [ Math . 1 ] ∫ 0 Da ( Ca - C ( x ) ) x Ca × D × 100 ≦ 0.5 ( 1 )
摘要:
An apparatus for manufacturing a float glass, including a float bath for strong a molten metal on which a molten glass flows, wherein the molten metal flows in the float bath, comprises a plurality of discharge slits formed through a wall of a downstream end of the float bath to discharge a molten metal crashing against the wall and dross floating on the molten metal; a flow-back channel formed in a widthwise direction of the float bath and communicated with the discharge slits; and a dross collecting member for collecting the dross flowing through the flow-back channel.
摘要:
The present invention provides a method for manufacturing a float glass by floating the glass on a molten tin that is contained in a molten tin bath, which includes the steps of a) discharging a portion of the molten tin in the molten tin bath to the outside of the molten tin bath; b) removing oxygen dissolved in the molten tin that is discharged from the molten tin bath by injecting an oxygen stripping gas that contains hydrogen into the molten tin; and c) returning the molten tin from which oxygen is removed to the molten tin bath, and an apparatus for manufacturing the same.
摘要:
A method for removing oxygen from molten tin in the float bath chamber of a float glass manufacturing process is provided. The method includes providing a chamber having within it molten metal and a gaseous atmosphere above the molten metal, providing at least one reducing gas container proximate the interface between the molten metal and the gaseous atmosphere, providing a source of a reducing gas, and directing the reducing gas to the at least one container. In the at least one container, the reducing gas reacts with the oxygen in the molten metal. The method may include removing a vapor/particulate stream from the float bath chamber. The method may also include removing the vapor and/or the particulate from the stream. An apparatus for removing oxygen from the molten tin is also provided.
摘要:
In a process for the production of flat, particularly float glass that can be converted into glass ceramic, a liquid film consisting in particular of the float bath metal is formed between the wetback tile, and optionally the restrictor tiles, and the glass stream. The tiles preferably consist of a porous material through the pores of which is pressed the liquid for creating the film.
摘要:
Process for manufacture of plate glass including pouring molten glass onto a bath of molten metal (4) contained in a tank having side wall (1), an inlet wall (2) and an outlet wall (3). The glass is advanced by means to form a glass ribbon (7) and extraction means draw the ribbon in a glass drawing space (II and III). Pairs of baffles (13 and 14) are positioned in the drawing zone between each side edge of the ribbon and the side walls to limit upstream flow of cooler molten metal in a direction towards the inlet wall.A device for manufacture of plate glass including a tank having an inlet wall (2), an outlet wall (3) and side walls (1) for holding a bath of molten metal (4) onto which molten glass is poured by feed means (6). The glass is advanced by advance means (9) in a drawing space to form a ribbon (7). Pairs of baffles (13 and 14) are positioned in the drawing zone to extend between the edges of the ribbon and the side walls to prevent upstream flow of molten metal in a direction towards the inlet wall.
摘要:
A coherent thin sheet of glass batch materials is advanced onto a pool of molten metal contained in a glass melting furnace to melt thereon, preferably in non-contacting relation to refractory sidewalls of the furnace.