Technique for producing high-purity solar battery slice diffusion tube with super large diameter

Abstract

The invention relates to a production technique of a solar battery sheet diffusion tube with high purity and super large diameter. The concrete steps includes: A, based on the original gas forming method, devices are transformed. First, a gas forming furnace hood is transformed, the furnace hood is enlarged and the size of a furnace mouth is enlarged; in addition, an internal furnace and a hearth are produced specially; the thermal insulation conditions of the hearth and a gas forming furnace bed end are improved; a positioning bracket is made; B, a quartz hydroxide melting stock blow lamp made specially is used for improving the temperature of the hearth to lead crystal powder to melt uniformly, thus achieving the blow forming casually; the blow lamp has large hydrogen amount, large flame area; hydrogen is injected for combustion and oxidation helps to combust; C, a large-diameter automatic forming glass lathe is customized, the pore opening size of the lathe is 400mm and the lathe body is 4500mm, a billet tube of a quartz tube with the diameter being about 300mm can be shaped, polished and circularly sealed at one time. The invention mainly solves the technical problems that the prior technology can not produce the solar battery sheet diffusion tubes with the specification of 270mm to 300mm and with the length of 5000mm to 2500mm.

Description

Technical field: [0001] The invention relates to a solar battery chip diffusion tube, in particular to a production process of a high-purity super-large-diameter solar battery chip diffusion tube. Background technique: [0002] The traditional fuel energy is decreasing day by day, and the harm to the environment is becoming more and more prominent. The whole world is turning its attention to renewable energy, hoping that renewable energy can change the energy structure of human beings and maintain long-term sustainable development. Among them, solar energy has become the focus of people's attention due to its unique advantages. Abundant solar radiation energy is an important energy source, which is inexhaustible, non-polluting, cheap, and can be freely utilized by human beings. Driven by large-scale national engineering projects, promotion plans and international cooperation projects, China's photovoltaic industry has developed rapidly at an unprecedented speed. [0003] A...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a production process of high-purity and ultra-large-diameter solar cell diffuser tubes, mainly to solve the technical problem that the existing process cannot produce solar cell diffuser tubes with a length of 270 mm to 300 mm and a length of 5000 mm to 2500 mm