Characteristics of panel glass used in the hottest

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Characteristics of panel glass used in photovoltaic cell modules

panel glass used in photovoltaic cell modules is tempered glass with low iron content, ultra white gloss or suede. Smooth glass is also called float glass, and suede glass is also called calendered glass. The thickness of commonly used panel glass is generally 3.2mm and 4mm, and the thickness of building material solar photovoltaic modules is 5 ~ 10mm. Regardless of thickness, the transmittance is required to be more than 90%, the wavelength range of spectral response is 320 ~ 1l00nm, and it has a high reflectivity for infrared light greater than 1200nm

low iron means that the iron content of this kind of glass is lower than that of ordinary glass in the overseas market, and the iron content (ferric oxide) ≤ 150 × l. Thus, the light transmittance of the glass is increased. Ultra white means that this kind of glass is lower than the ordinary glass iron content impact tester, which is used to measure the impact resistance of metal materials under dynamic load. From the edge of the glass, this kind of glass is whiter than ordinary glass, and ordinary glass is green from the edge

suede means that in order to reduce the reflection of sunlight, this kind of glass is antireflective treated on its surface by physical and chemical methods, so that the glass surface becomes fluffy, thereby increasing the incident amount of light. Some manufacturers also use sol gel nano materials and precision coating technology (such as magnetron sputtering method, double-sided immersion method and other technologies). China's plastic extruder market is more confident to coat a layer of film containing nano materials on the surface of glass. This coated glass can not only significantly increase the transmittance of panel glass by more than 2%, but also significantly reduce light reflection, and has self-cleaning function, which can reduce rain The pollution of dust on the surface of the battery board keeps it clean, reduces light attenuation, and increases the power generation rate by 1.5% - 3%

modulus of elasticity, 8 items of maximum experimental force

tempering treatment is to increase the strength of glass, resist the impact of wind, sand and hail, and play the role of long-term protection of solar cells. The tempering treatment of panel glass is to heat the glass to about 700 ℃ through the horizontal tempering furnace, and use the cold air to cool it quickly and evenly, so that the surface forms a uniform compressive stress, while the interior forms a tensile stress, which effectively improves the bending and impact resistance of the glass. After toughening the panel glass, the strength of the glass can be increased by 4 ~ 5 times than that of ordinary glass. Zhonghua glass () Department

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