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About glass

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flat glass
May 12, 2017

classification

According to the thickness can be divided into thin glass, thick glass, especially thick glass; according to the surface state can be divided into ordinary flat glass, embossed glass, polished glass, float glass. Flat glass can also be produced by coloring, surface treatment, composite and other processes with different colors and various

Flat glass

Special properties of products such as heat-absorbing glass, heat-reflective glass, selective absorption glass, insulating glass, tempered glass, laminated glass, folder wire glass, color glass (see new architectural glass, safety glass).

Ordinary flat glass: that is, window glass, generally refers to the vertical groove with a vertical, flat pull, no groove vertical and Xu Fang and other technology to produce flat glass. According to the national standard << flat glass >> (GB11614-2009), the net sheet glass according to its nominal thickness, can be divided into 2, 3,5,6,8,10,12,15,19,22,25 mm A total of twelve specifications. For general buildings, factories, warehouses, etc., can also be used to process it into wool glass, colored glazed glass, the thickness of more than 5 mm can be used as the production of polished glass blanks.

Commonly used flat glass polished glass and float glass is made of ordinary flat glass by double-sided polishing, polishing or the use of float process to produce glass. Widely used in civil buildings, shops, restaurants, office buildings, airports, railway stations and other buildings of the doors and windows, windows and mirror, can also be used for processing steel, sandwich and other safety glass.

characteristic

Flat glass has a good perspective, good light transmission performance (3mm and 5mm thick colorless transparent flat glass visible light transmittance of 88% and 86%, respectively), the sun near the red heat of the higher transmittance, but The visible light to set the indoor wall of the ground and furniture, fabric and reflection of the far-infrared long-wave heat rays are effectively blocked, it can produce a clear "greenhouse effect." Colorless transparent flat glass on the sun in the ultraviolet light transmission rate is low.

Flat glass with sound insulation and a certain degree of insulation properties, the tensile strength is much smaller than the compressive strength, is a typical brittle material.

Flat glass has a high chemical stability, under normal circumstances, acid, alkali, salt and chemical reagents and gases have a strong resistance, but long-term erosion of the role of the media can also lead to qualitative change and damage, such as glass weathering And moldy will lead to the appearance of the damage and reduce the ability to light.

Flat glass thermal stability is poor, rapid quenching, prone to burst.

grade

In accordance with the national standard GB11614-2009, flat glass according to its appearance quality is divided into excellent, first class and qualified three grades.

Features

Flat glass because the thickness of the production is about 5mm, is a relatively thin glass, its flatness and thickness difference is more, this flat glass is mainly used in ordinary residents of the use of glass doors and windows, is a kind of home With the construction of glass, after a certain sandblasting, carving, coupled with a certain degree of corrosion treatment, you can make this glass into a screen, blackboard, cut off the block, etc., for the better quality of the glass can also be a Deep processing of products to use, such as the original piece of glass.


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