Sodium-calcium-silicate glass composition, its manufacturing method and use

A technology of glass composition and sodium calcium silicate, which is applied in the manufacture of said glass composition and the field of manufacturing glass plates for solar cells, and can solve problems such as easy crystallization of glass

Active Publication Date: 2008-12-31
HENAN ANCAI HI-TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Aiming at the problem that glass is easy to crystallize in the prior art, and the problem that sulfur clarification is easy to cause NiS to be produced, th

Method used

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  • Sodium-calcium-silicate glass composition, its manufacturing method and use
  • Sodium-calcium-silicate glass composition, its manufacturing method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 19-21

[0089] Embodiments 19 and 20 are formulated according to No. 7 and No. 15 of Table 1, and adopt sodium pyroantimonate to introduce Sb 2 o 3 , according to 6 times of Sb 2 o 3 The weight of sodium nitrate (NaNO 3 ), adding a small amount of nickel powder to the batch.

Embodiment 21

[0090] Embodiment 21 according to No. 18 composition batching in table 1, does not quote Sb 2 o 3 , using Glauber's salt (Na 2 SO 4 ) and carbon powder as clarifying agent.

[0091] Examples 19-21 are all prepared according to 500g of glass, and the glass batch is filled in a platinum-rhodium crucible, and melted in a high-temperature silicon-molybdenum rod electric furnace for 4 hours at a melting temperature of 1450°C. The melted glass is cast into blocks and annealed.

[0092] NiS crystals were detected on the obtained glass. As a result, no NiS crystals were found in the glass samples of Examples 19 and 20, but NiS crystals existed in the glass samples of Example 21.

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Abstract

The invention relates to a sodium-calcium silicate glass compound, which has high liquid viscosity and is suitable for manufacturing various glass plates, especially suitable for manufacturing glass plates used for solar cells; the invention also relates to a manufacturing method of the glass compound.

Description

technical field [0001] The present invention relates to a soda lime silicate glass composition, which has a high liquidus viscosity and is suitable for manufacturing various glass plates, especially suitable for manufacturing glass plates for solar cells; the present invention also relates to the manufacture of said glass composition method. Background technique [0002] Take Na 2 O, CaO, SiO 2 Ordinary soda-lime silicate glass as the main body is widely used in the production of various flat glasses, such as ordinary white glass, low-iron ultra-clear glass, colored glass with colorant added, and solar control glass. In order to increase the strength of glass, these glasses usually need to be tempered. When used as a glass plate for solar cells, not only does the glass need to be fully tempered, but it is also required to have high visible light and solar light transmittance. The visible light transmittance of a glass plate with a thickness of 3mm is required to be above ...

Claims

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Application Information

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IPC IPC(8): C03C3/091C03C3/11C03C3/095
Inventor 贾伟曹国喜张广涛孙渝威付玉川闫冬成
Owner HENAN ANCAI HI-TECH
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