Method for producing low-iron high-pervious self-cleaning ultra-white rolling glass

Abstract

The invention discloses a method for producing low-iron high-pervious self-cleaning ultra-white rolling glass. Prepared materials comprise components in parts by mass as follows: 68% to 75% of SiO2, 9% to 15% of Na2O, 8% to 12% of CaO, 1% to 3% of Al2O3 and 2% to 5% of MgO, a compound strong oxidant accounting for 0.1% to 1.0% of the prepared materials is added, iron contents of the materials are controlled to be within 50ppm, and the rolling glass is formed through mixing, melting, rolling, annealing, cut loading, coating, tempering and coating curing. According to the method, the iron contents of the materials and the mass ratio of the materials are controlled, the strong oxidant is added, glass sheets are manufactured by a natural gas total oxygen combustion technology, and photoelectric properties and physical properties of the rolling glass can be improved remarkably after two times of coating, tempering and curing, so that the sunlight transmittance is improved by 2.5% to reach more than 94.5%, the photoelectric conversion efficiency of the rolling glass can be improved, a self-cleaning function is provided, and industrial application of solar ultra-white rolling glass is facilitated.

Description

technical field [0001] The invention relates to a production method of rolled glass for solar photovoltaic cell components, in particular to a production method of low-iron, high-transmittance self-cleaning ultra-clear rolled glass. Background technique [0002] Ultra-clear solar rolled glass, also known as low-iron suede glass, is formed by rolling equipment with specific patterns, and is the designated product for solar cell glass in European and American countries. The use of solar cells is better than that of ordinary flat ultra-clear glass. The main reason is that the rolled glass is pressed with grid patterns, which can reduce the reflectivity of sunlight, absorb the radiant heat of solar energy to the greatest extent, and greatly improve Photoelectric conversion efficiency of solar cells. At the same time, the ultra-clear solar rolled glass can withstand the radiation of the sun's ultraviolet rays, and the light transmittance does not decrease, which can more effecti...

AI Technical Summary

Problems solved by technology

However, combining our current environmental protection and energy-saving technology to improve the melting quality of solar ultra-clear rolled glass and the subsequent coating process to improve light transmittance and physical and chemical properties needs further research.