Float semi-tempered glass production process and product thereof

A glass manufacturing and semi-tempering technology, applied in glass manufacturing equipment, manufacturing tools, glass tempering and other directions, can solve the problems of difficulty in mass production of ultra-thin float glass and high production costs, and achieve light unit weight and production costs. Low, low reflectivity effect

Inactive Publication Date: 2013-08-21
XINYI PHOTOVOLTAIC IND (ANHUI) HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, it is difficult to produce ultra-thin float glass in large quantities in the production line of the ultra-clear float glass currently on the market, or even if it can be produced, the production cost is very high

Method used

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Embodiment Construction

[0030]In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] The manufacturing process of the float semi-tempered glass provided by the present invention will now be described. The manufacturing process of the float semi-tempered glass comprises the following steps:

[0032] (1) Raw material batching: after mixing sand, dolomite, limestone, soda ash and Glauber's salt, recycled cullet, aluminum powder and oxidant, stir to form a mixed batch with a chemical composition of predetermined weight parts; wherein the quality of siliceous raw materials The requirement is: SiO 2 ≥98.5%±0.1%, Al 2 o 3 ≤0.5%±0.05%, Fe 2 o 3 ≤0.012%±0.005%, TiO 2 ≤0...

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Abstract

The invention belongs to the technical field of special glass production, and provides a float semi-tempered glass production process and a product thereof. The process comprises the following steps: (1) preparing raw materials, (2) feeding and melting, (3) carrying out clarification, (4) carrying out homogenization, (5) carrying out tin stripping molding, (6) annealing, (7) cutting, and (8) carrying out semi-tempering. With the float semi-tempered glass production process, ultra clear float semi-tempered glass with a thickness of 2.5 mm can be produced, wherein the glass has characteristics of high transmittance, low reflectivity, light unit weight and strong strength, and is applicable for photovoltaic industry to be adopted as a photoelectric conversion substrate and a light-heat conversion panel so as to be used for solar battery manufacturing. In addition, with application of the process to produce the ultra clear float semi-tempered glass, the production cost is low so as to reduce a production cost of the whole photovoltaic industry chain.

Description

technical field [0001] The invention belongs to the technical field of special glass production, and more specifically relates to a manufacturing process of semi-tempered float glass and its products. Background technique [0002] The production technology of ultra-clear float glass is mainly float method. Ultra-clear float glass is made of ore raw materials with extremely low iron content instead of ordinary glass ore. It is produced by roughly the same process as ordinary float glass, and the resulting product has low iron content, high light transmittance and low reflectivity. float glass. [0003] 3.2mm, 4.0mm ultra-clear float tempered glass, in the wavelength range of solar cell spectral response (320-1100nm), the light transmittance can reach about 91%, and it has a high reflectivity for infrared light greater than 1200nm. As the thickness of the ultra-clear float glass increases, the light transmittance value in the wavelength range (320-1100nm) of the solar cell's...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B18/00C03B27/012
Inventor 董清世张明刘笑荣孙伟梅锡军丁传标刘日福
Owner XINYI PHOTOVOLTAIC IND (ANHUI) HLDG CO LTD
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