Of course, protectionGlass Cutting MachineAlso because of the poor working environment of components: some components to work in the perennial windy place, the wind will stone and other objects blown to components, will damage the components, and may encounter severe weather such as hail. Tempered Glass has a strong ability to resist mechanical impact, can effectively protect the components of the fragile battery, so that it is not damaged.
In addition, the insulating properties of the components have a contribution from the tempered glass, so that the components from lightning breakdown risk. 1.3, light transmittance of the tempered glass is opaque, the transmission rate is low, but once laminated, and after the melting of Eva bonded together, his transmittance will be more than 91%, so that the battery can effectively absorb light to generate electricity. At the same time, full use of the velvet surface and embossed flower pattern diffuse reflection principle, greatly reduce the reflectivity of light, so that it has at all angles of incidence conditions, have a very high light transmittance of the sun.
Second, the classification of tempered glass has a variety of classifications. According to the shape of the plane tempered glass and curved tempered glass. The thickness of planar toughened glass is 4, 5, 6, 8, 10, 12, 15, 19mm Eight, and curved tempered glass has 5, 6, 8mm three. Tempered glass according to its appearance quality is divided into: excellent products, qualified goods two categories. Tempered glass According to the fragmentation of the state is divided into: I class, Ⅱ class and Ⅲ class. Photovoltaic industry's toughened glass mainly has ultra white embossing glass, thermal reflective coating toughened glass.
2.1, ultra-white embossing Glass
Glass Cutting Machine Ultra white embossing is the use of extremely low iron ore raw materials to replace the ordinary glass ore, using the same as ordinary embossing glass process produced by the high transmittance, low reflectivity of the embossed glass. The current ultra white embossing glass is mainly used in solar energy industry. The current mainstream products are also known as low iron tempered embossing glass (one said tempered velvet glass), thickness of 3.2mm, in the wavelength range of solar cell spectral response (320~1100nm), the transmittance can reach more than 91%, for more than 1200nm of infrared light has a higher reflectivity. Embossed Glass has two advantages: first, embossing process of glass and Eva bond strength greatly enhanced, prolong the service life of the component; Secondly, embossing design can make full use of embossing pattern of diffuse reflection principle, greatly reduce the reflectivity of light, so that it has at all angles of incidence conditions, have a very high light transmittance of the sun.
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