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Manufacturing method of solar battery packaging glass and kiln furnace used for manufacture

A solar cell and encapsulation glass technology, applied in glass manufacturing equipment, manufacturing tools, glass furnace equipment, etc., can solve the problems of inability to produce glass with special functions, etc., and achieve long service life, high smoothness, and good flexibility Effect

Active Publication Date: 2009-11-25
李静
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The manufacturing method of flat glass has been widely used, and the kiln used in glass manufacturing has also been mastered by the professional technicians, but this method and the kiln used can only produce glass with general properties, but cannot produce glass with special properties. functional glass

Method used

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  • Manufacturing method of solar battery packaging glass and kiln furnace used for manufacture
  • Manufacturing method of solar battery packaging glass and kiln furnace used for manufacture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: The solar cell encapsulation glass produced is as follows, a, selecting raw materials: selecting quartz sand, soda ash, calcite, potassium carbonate, alumina, mirabilite, magnesia and broken glass as raw materials; The iron content of the raw materials such as potassium carbonate, alumina, mirabilite and magnesium oxide is tested, and the content of iron in each raw material can be used within the range of 0-0.0001% of its weight; the selected broken glass should be colorless;

[0013] b. Processing of the selected raw materials: The selected quartz sand raw materials are washed with an acidic solution made of sulfuric acid and water, and iron is removed. The washed quartz sand should be tested. When the iron content in the quartz sand is 0-25ppm, it can be used; the broken glass should be cleaned;

[0014] c. According to the glass components produced, calculate the weight of various raw materials required, and weigh various raw materials that have been p...

Embodiment 2

[0020] Embodiment 2: the production method in the present embodiment and the steps are the same as those of the embodiment 1, but in step b, add the acid liquid made of water with nitric acid to wash the selected quartz sand raw material, except the iron in it;

[0021] In step c, when weighing and mixing the raw materials, use a stainless steel container to hold them, and use stainless steel tools to mix and transport them; when the raw materials are added to the kiln for melting, the hot spot temperature in the kiln is 1540-1555 ℃, and the temperature of the cooling part is 1165- 1190℃, the fluctuation range of glass liquid level in the furnace is 0-0.5mm;

[0022] The temperature at the outlet of the molten glass in the furnace is 1090-1120°C. Other steps and requirements are the same as in Example 1.

[0023] In this embodiment, the height H of the kiln sill is 720 mm, and other structures are the same as those in Embodiment 1.

Embodiment 3

[0024] Example 3 Production method and steps in the present embodiment are similar to those in Example 1, but in step b, the selected quartz sand raw material is washed with the acid solution that hydrochloric acid adds water to make, and the iron in it is removed;

[0025] In step c, when weighing and mixing raw materials, use stainless steel or aluminum containers to hold them, and use stainless steel or aluminum tools to mix and transport; The temperature is 1170-1240℃, and the fluctuation range of the glass liquid level in the furnace is 0-0.6mm;

[0026] The temperature at the outlet of the molten glass in the furnace is 1105-1120°C. For the convenience of storage and product transportation, the annealed glass products should also be cut, packaged or boxed.

[0027] Other steps and technical requirements are the same as in Example 1.

[0028] In this embodiment, the height H of the kiln sill is 740 mm, and other structures are the same as those in Embodiment 1.

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Abstract

A method for manufacturing solar cell encapsulation glass, including selection of raw materials, processing of raw materials, weighing of raw materials, mixing of raw materials and adding them into a kiln for melting, molding and annealing steps, in which the content of iron in quartz sand is controlled at 0-25ppm; the height of the kiln sill used is 715-780mm, and the corundum brick in the flower partition wall forms an angle of 45° with the center line of the wall width; the light transmittance of the glass produced by the technical solution of the present invention is higher than 92%, and has the advantages of high whiteness, high finish, high strength, good flexibility and long service life. This kind of glass fully meets the performance requirements of solar cell packaging glass.

Description

technical field [0001] The invention belongs to a manufacturing method of a solar cell encapsulation glass, and also relates to a kiln used in the manufacturing. Background technique [0002] The manufacturing method of flat glass has been widely used, and the kiln used in glass manufacturing has also been mastered by the technical personnel in this profession, but this method and the kiln used can only produce glass with general properties, but cannot produce special glass. Functional glass. SUMMARY OF THE INVENTION [0003] The object of the present invention is to provide a manufacturing method for producing encapsulating glass for solar cells, and at the same time provide a kiln used in the manufacturing method. [0004] The object of the present invention is achieved through the following technical solutions: the manufacturing method of this solar cell encapsulation glass includes the selection of raw materials, the processing of raw materials, the calculation of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C6/00C03B5/16
CPCC03C3/087
Inventor 郜庭玉李成林刘树一刘有进郜庭河陈光荣吕来有
Owner 李静
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