Production process of embossed solar coated photovoltaic glass

Abstract

The invention relates to a production process of embossed solar coated photovoltaic glass, which comprises the following steps: (1) weighing the following components in parts by weight: 60-70 parts of quartz sand, 5-8 parts of aluminum oxide, 0.5-1 part of barium oxide, 2-3 parts of sodium oxide, 3-8 parts of calcium oxide, 0.4-1.5 parts of yttrium oxide, 0.05-0.15 part of cerium oxide, 0.3-3 parts of sodium sulfate, 0.1-3 parts of sodium nitrate and 0.5-1.5 parts of kaolin; (2) mixing and ball-milling the raw materials, and heating, melting and clarifying; (3) discharging bubbles from the molten glass liquid, thinning the molten glass liquid in a forming area, and cooling and forming the molten glass liquid to obtain a glass plate; (4) immediately conveying the glass plate to an embossing area, carrying out heat preservation after embossing, and conveying the glass plate to an annealing area to obtain an embossed glass plate; (5) cleaning the embossed glass plate, drying, removing dust, and preheating the embossed glass plate in a preheating area; (6) enabling the preheated embossed glass plate to enter a coating area for coating, and then curing to form the embossed solar photovoltaic glass plate; the invention has the advantages of high transmittance, high glass melting rate and high production efficiency.

Description

technical field

[0001] The invention belongs to the technical field of photovoltaic glass processing, and in particular relates to a production process of embossed solar-coated photovoltaic glass. Background technique

[0002] Solar photovoltaic glass is a special glass that is laminated into solar cells, can use solar radiation to generate electricity, and has related current extraction devices and cables. In order to improve the transmittance of sunlight and reduce the reflection of sunlight, the process of embossing or coating is adopted.

[0003] The production process of the coated photovoltaic glass of the patent CN 109206018 A, the melting furnace melts the glass raw material to form a glass fluid. The glass fluid is float-formed through a metal bath into initial glass sheets. The initial glass sheet is annealed using an annealing chamber to form a finished glass sheet. The finished glass plate is tempered to make a tempered glass plate. Tempering the glass first s...