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High-strength nucleated glass and preparation method thereof

A glass-ceramic and high-strength technology, which is applied in the field of high-strength glass-ceramic and its preparation, can solve the problems of reduced strength and unknown influence of the crystallization process, etc.

Active Publication Date: 2014-05-21
深圳市雄华光学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 201010256101.7 involves a preparation method of copper-red glass-ceramics. Due to the high content of silicon oxide in this case, a co-solvent must be added, which leads to a decrease in strength, about 60MPa
Rare earth metals can improve the properties of glass-ceramics, but their effect on the crystallization process is unknown

Method used

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Examples

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Comparison scheme
Effect test

preparation example Construction

[0027] A method for preparing stone-like glass. The raw materials are configured according to the requirements, and the raw materials are passed into the melting part, mixed and melted to form a molten glass liquid, and then the glass liquid is passed into the cooling part, where it is homogenized, clarified, and air bubbles are discharged. Then the molten glass is discharged to the forming part, formed and then annealed, and finally the stone-like glass is taken out, wherein the temperature in the forming part is kept at 1320°C to 1400°C, and the glass liquid is stored in the forming part for 1 to 10 hours. After cooling down, anneal after forming, and finally take out the imitation stone glass. The heat preservation process of the forming part is conducive to the growth of crystal nuclei. Since the raw material may stick in the mold cavity during the crystallization process, the mold cavity needs to be destroyed, so the mold cavity can be made of low-cost heat-resistant cera...

Embodiment 1

[0030] The glass-ceramic is composed of the following components: silicon oxide 33.3Kg, calcium oxide 9Kg, magnesium oxide 10.8Kg, aluminum oxide 12Kg, aluminum phosphate 10Kg, calcium fluoride 6Kg, zirconia 6Kg, lithium oxide 6Kg, bismuth oxide 3Kg, titanium oxide 3Kg, barium oxide 3Kg, antimony oxide 1.5Kg, lanthanum oxide 1.5Kg, cerium carbonate 1.5Kg, zinc oxide 0.04Kg, gold trichloride 0.01Kg, tin dioxide 0.02Kg and colorant. The coloring agent is composed of the following components: 0.005Kg of gold trichloride, 0.15Kg of tin dioxide, 0.008Kg of copper sulfate, and 0.005Kg of iron oxide.

[0031] Raw materials are configured according to requirements, and the raw materials are passed into the melting part, mixed and then melted to form molten glass, and the melting temperature is 1700°C. Then the molten glass is passed into the cooling section, where it is homogenized, clarified, and air bubbles are discharged, then the molten glass is discharged to the forming section, ...

Embodiment 2

[0033] The glass-ceramic is composed of the following components: 35Kg of silicon oxide, 9.46Kg of calcium oxide, 11.35Kg of magnesium oxide, 8Kg of aluminum oxide, 8Kg of aluminum phosphate, 5Kg of calcium fluoride, 5Kg of zirconia, 5Kg of lithium oxide, 0.1Kg of bismuth oxide, Titanium 1Kg, barium oxide 1Kg, antimony oxide 1Kg, lanthanum oxide 1Kg, cerium carbonate 1Kg, zinc oxide 0.01Kg, gold trichloride 0.005Kg, tin dioxide 0.01Kg and co-solvent. The auxiliary solvent is composed of the following components: boron oxide 5Kg, potassium oxide 2Kg, sodium oxide 0.1Kg.

[0034] Raw materials are configured according to requirements, and the raw materials are passed into the melting part, mixed and then melted to form molten glass, and the melting temperature is 1600°C. Then the molten glass is passed into the cooling section, where it is homogenized, clarified, and air bubbles are discharged, then the molten glass is discharged to the forming section, shaped and then annealed,...

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Abstract

The invention provides a high-strength nucleated glass and a preparation method thereof. The nucleated glass comprises BAS, LAS component, fluoride, phosphide, rare-earth metal oxide, carbonate and necessary calcium and magnesium components. The compressive strength of the nucleated glass is more than 420MPa, the breaking strength is more than 100MPa, and other performances such as melt viscosity and thermal coefficient of expansion are also improved.

Description

technical field [0001] The invention relates to glass-ceramic, in particular to a high-strength glass-ceramic and a preparation method thereof. Background technique [0002] The strength of glass-ceramics is mainly determined by its components. The preparation process can improve the crystal nucleus and change the light transmittance more. [0003] 201310420521.8 relates to a kind of white fluorine-free glass-ceramics suitable for calendering production, its composition is: SiO 2 : 35%~46.5%; Al 2 o 3 : 24%~35%; CaO: 12%~16%; MgO: 7%~13%; Na 2 O+K 2 O: 4~10%; TiO 2 +ZrO 2 : 4%~10%; others: 2%~10%. The three-point flexural strength of the glass-ceramic in this case can reach 100MPa, much higher than the conventional 50MPa. The case contains additional ingredients such as calcium and magnesium, which is beneficial to improve strength. [0004] 201010256101.7 relates to a preparation method of copper-red glass-ceramics. Due to the high content of silicon oxide in this ...

Claims

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Application Information

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IPC IPC(8): C03C10/00
Inventor 曹小松
Owner 深圳市雄华光学有限公司
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