Manufacturing process of high-brightness chromium-containing glass

A production process and high-brightness technology, applied in the field of glass production, can solve problems such as insufficient brightness of chrome-containing glass, and achieve the effect of solving insufficient brightness

Inactive Publication Date: 2013-11-20
LUOYANG INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of the above technical problems and provide a high-brightness chrome-containing glass manufac

Method used

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  • Manufacturing process of high-brightness chromium-containing glass

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Effect test

Embodiment 1

[0022] A manufacturing process of high-brightness chromium-containing glass, said process comprising the following steps:

[0023] (1) Making glass batch materials: Mix silica sand, dolomite, limestone, albite, lithium carbonate, sodium nitrate and lead nitrate and mix them evenly, then add potassium dichromate and stir evenly again to obtain glass batch materials. Each component in the obtained glass batch is represented by weight percent as oxide: SiO 2 71.35%, CaO 7.83%, MgO 4.4%, Fe 2 o 3 0.12%, Al 2 o 3 0.9%, Li 2 O 4.8%, K 2 O 0.08%, Na 2 O 9.92%, PbO 0.45% and Cr 2 o 3 0.15%.

[0024] (2) Melting: Weigh 200 grams of the prepared glass batch material, put it into a corundum crucible with a size of 80mm × 120mm, and place the crucible in a SGM3816C box-type resistance furnace for melting test. Heating is controlled to raise the temperature to 1580°C over 5 hours, and kept at this temperature for 2 hours to obtain molten glass;

[0025] (3) Crystallization: ...

Embodiment 2

[0028] A manufacturing process of high-brightness chromium-containing glass, said process comprising the following steps:

[0029] (1) Making glass batch materials: Mix silica sand, dolomite, limestone, albite, lithium carbonate, sodium nitrate and lead nitrate and mix them evenly, then add potassium dichromate and stir evenly again to obtain glass batch materials. Each component in the obtained glass batch is represented by weight percent as oxide: SiO 2 71.55%, CaO 7.5%, MgO 4.6%, Fe 2 o 3 0.12%, Al2 o 3 0.9%, Li 2 O 4.6%, K 2 O 0.07%, Na 2 O 9.94%, PbO 0.47% and Cr 2 o 3 0.25%;

[0030] (2) Melting: Weigh 200 grams of the prepared glass batch material, put it into a corundum crucible with a size of 80mm × 120mm, and place the crucible in a SGM3816C box-type resistance furnace for melting test. Heating is controlled to raise the temperature to 1580°C over 5 hours, and kept at this temperature for 2 hours to obtain molten glass;

[0031] (3) Crystallization: Tak...

Embodiment 3

[0034] A manufacturing process of high-brightness chromium-containing glass, said process comprising the following steps:

[0035] (1) Making glass batch materials: Mix silica sand, dolomite, limestone, albite, lithium carbonate, sodium nitrate and lead nitrate and mix them evenly, then add potassium dichromate and stir evenly again to obtain glass batch materials. Each component in the obtained glass batch is represented by weight percent as oxide: SiO 2 70.5%, CaO 7.96%, MgO 4.6%, Fe 2 o 3 0.1%, Al 2 o 3 1%, Li 2 O 5%, K 2 O 0.08%, Na 2 O 9.94%, PbO 0.47% and Cr 2 o 3 0.35%;

[0036] (2) Melting: Weigh 200 grams of the prepared glass batch material, put it into a corundum crucible with a size of 80mm × 120mm, and place the crucible in a SGM3816C box-type resistance furnace for melting test. Heating is controlled to raise the temperature to 1580°C over 5 hours, and kept at this temperature for 2 hours to obtain molten glass;

[0037] (3) Crystallization: Take o...

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Abstract

The invention relates to a manufacturing process of high-brightness chromium-containing glass. The manufacturing process comprises the following steps of: (1) taking silica sand, dolomite, limestone, albite, lithium carbonate, sodium nitrate and lead nitrate, mixing, uniformly stirring, then adding potassium dichromate, and then stirring uniformly to obtain glass batch; (2) melting; (3) carrying out secondary crystallization on the glass; and (4) cooling and forming to obtain a glass product. The process method of the chromium-containing glass manufactured by the invention has the advantages that by selection of a reasonable glass material formula and strict control for the heating rate in the melting process, the glass batch can be fully melted, the operation of twice crystallization is adopted, the manufactured chromium-containing glass is high in brightness and looks more sparkling, and the problem of poor brightness of the chromium-containing glass is solved.

Description

technical field [0001] The invention relates to the technical field of glass production, in particular to a production process of high-brightness chrome-containing glass. Background technique [0002] Glass is an inexpensive man-made gemstone that can be used to imitate natural gemstones such as chalcedony, quartz, beryl (emerald and aquamarine), emerald, nephrite, and topaz, among others. The glass used for imitation gemstones in gemology is composed of silicon oxide (a component of quartz) and a small amount of alkali metal elements such as calcium, sodium, potassium or oxides of lead, boron, aluminum, and barium. There are two main types of glass used as gem imitations: crown glass and flint glass. The most commonly used components of crown glass are silicon, soda and lime, which are the same materials used to make bottles and optical glass; in addition to silicon and soda, flint glass uses lead oxide instead of lime in crown glass, so it is also called lead Glass. Bec...

Claims

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Application Information

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IPC IPC(8): C03C3/105C03B32/02
Inventor 白晓华李淑静曹钦存苏会利王勇
Owner LUOYANG INST OF SCI & TECH
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