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Tinted Float GlassTransparency Is Strong
Aug 18, 2017

Float glass is widely used, divided into colored glass, float silver mirror, float glass / car wind level, float glass / various deep processing grade, float glass / scanner grade, float glass / coating level, floating French glass / system level. The ultra-white float glass has a wide range of uses and broad market prospects, mainly used in high-grade construction, high-grade glass processing and solar photovoltaic curtain wall and high-grade glass furniture, decorative glass, imitation crystal products, lighting glass, precision electronics industry, Special buildings and so on.

1. Float glass production process

Float glass production process: in the protection of gas (N2 and H2) in the tin tank to complete. The molten glass flows continuously from the kiln and floats on the surface of the tin liquid with relatively large density. Under the action of gravity and surface tension, the molten glass is spread on the tin liquid surface and flattened to form the upper and lower surfaces, harden and cool After being cited as a transition roll table. Roller table roller rotation, the glass out of the tin into the annealing furnace into the furnace, the annealing, cutting, to get the float glass products.

2. Float glass features

For the float glass, the thickness of the uniformity is better, the transparency of its products is relatively strong, so after the tin surface treatment, relatively smooth, in the smooth role of the flame and polishing under the action of the formation of a surface Relatively neat, flatness is better, relatively strong optical performance of the glass, this float glass is particularly good decorative characteristics, but also has a good transparency, clarity, purity, and indoor light and so on.

3. The difference between float glass and ordinary flat glass

(1) raw materials, the production process is different from ordinary flat glass is quartz sandstone powder, silica sand, potassium fossil, soda ash, Glauber's salt and other raw materials, according to a certain proportion of preparation, melting through the melting furnace, through vertical drawing method or flat pull method, Law produced by the transparent colorless flat glass. Float glass is made of sea sand, quartz sandstone powder, soda ash, dolomite and other raw materials, according to a certain proportion of preparation, melting through the melting furnace, the glass from the kiln continuous flow and float on the metal surface, Flat, by the fire polished glass belt, after cooling hardening from the metal liquid, and then cut by cutting the transparent colorless flat glass.

(2) Appearance quality grade classification standard Different ordinary flat glass appearance Quality level is based on wave tendons, bubbles, scratches, sand, pimple, thread and other defects and determine. Float glass appearance quality level is based on optical deformation, bubbles, inclusions, scratches, lines, fog and other defects to judge.

(3) different quality ordinary glass, fragile, transparency is not high, rain and rain under the easy aging deformation. Float glass, smooth and smooth on both sides, indicating smooth and no corrugated, good perspective, with a certain toughness, float glass side to see the color and the general glass is different, white, reflective objects without distortion, and the general watermark Deformation.

Float glass production problems:

The tin bath in the float process uses a metal tin solution as a carrier material, a mixture of nitrogen and hydrogen as a shielding gas. In the relatively closed environment of the tin tank, there are many complex chemical reactions, some of these chemical reactions will bring a lot of glass defects, affecting product quality. Float glass tin bath environment and structural characteristics determine the tin defect generation is inevitable, in the actual production can only be effective control, and can not be eliminated.


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