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Energy-saving high-strength glass-ceramic and its preparation method

A glass-ceramic and high-strength technology, which is applied in the field of energy-saving and high-strength glass-ceramics and its preparation, can solve the problems of unsatisfactory electrical properties, difficult glass melting, and high crystallization temperature, and achieve reduced crystal nucleating agent dosage, low cost, and high melting temperature. low effect

Active Publication Date: 2019-10-11
卢爱民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are still problems such as "the melting of glass is difficult, the crystallization temperature is high, and the crystallization time is long; and the chemical, mechanical and electrical properties of the product are not ideal enough" and other problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1, glass-ceramic (jade) of the present invention is melted from the raw material of following weight ratio and forms SiO 2 : 40 kg, CaO: 21 kg, MgO: 16 kg, crystal nucleus agent: 1 kg. The crystal nucleating agent is preferably selected from TiO 2 , ZrO 2 , ZnO, P 2 o 5 , CaF 2 、Na 3 AlF 6 、Na 2 SiF 6 and MgF 2 . The raw materials in the weight ratio are melted to form molten glass, cooled, shaped, nucleated and crystallized, and then annealed. Preferably, the raw materials in the weight ratio are melted to form molten glass, which is cooled and shaped, and then entered into a stick kiln for nucleation and crystallization at a lower temperature and a shorter time, and then annealed.

Embodiment 2

[0023] Embodiment 2, glass-ceramic (jade) of the present invention is melted from the raw material of following weight proportion and forms SiO 2 : 55 kg, CaO: 45 kg, MgO: 30 kg, Al 2 o 3 : 3 kg, nucleating agent: 8 kg, flux: 2 kg. The crystal nucleating agent is preferably selected from TiO 2 , ZrO 2 , ZnO, P 2 o 5 , CaF 2 、Na 3 AlF 6 、Na 2 SiF 6 and MgF 2 ; The flux is preferably selected from B 2 o 3 、Na 2 O. Li 2 o 3 、Na 2 AlF 6, ZnO. The raw materials in the weight ratio are melted to form molten glass, cooled, shaped, nucleated and crystallized, and then annealed. Preferably, the raw materials in the weight ratio are melted to form molten glass, which is cooled and shaped, and then entered into a stick kiln for nucleation and crystallization at a lower temperature and a shorter time, and then annealed.

Embodiment 3

[0024] Embodiment three, glass-ceramic (jade) of the present invention is melted from the raw material of following weight proportion and forms SiO 2 : 47 kg, CaO: 32 kg, MgO: 23 kg, Al 2 o 3 : 2 kg, nucleating agent: 4 kg, flux: 1 kg. The crystal nucleating agent is preferably selected from TiO 2 , ZrO 2 , ZnO, P 2 o 5 , CaF 2 、Na 3 AlF 6 、Na 2 SiF 6 and MgF 2 ; The flux is preferably selected from B 2 o 3 、Na 2 O. Li 2 o 3 、Na 2 AlF 6 , ZnO. The raw materials in the weight ratio are melted to form molten glass, cooled, shaped, nucleated and crystallized, and then annealed. Preferably, the raw materials in the weight ratio are melted to form molten glass, which is cooled and shaped, and then entered into a stick kiln for nucleation and crystallization at a lower temperature and a shorter time, and then annealed.

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PUM

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Abstract

The invention relates to energy-saving high-strength microcrystalline glass and a preparation method thereof. The energy-saving high-strength microcrystalline glass solves the prior art problem of energy waste, and is prepared from 40-55wt% of SiO2, 21-45wt% of CaO, 16-30wt% of MgO, 0-3wt% of Al2O3, 1-8 or 0wt% of a nucleation agent and 0-2wt% of a flux or from 48-55wt% of SiO2, 23-26wt% of CaO, 15-18wt% of MgO, 0-6wt% of Al2O3, 0-8wt% of a nucleation agent and 0-1wt% of a flux by melting. The preparation method comprises the following steps of melting the above raw materials according to the above weight ratio to obtain a glass liquid, carrying out cooling and molding, feeding the molded glass into a roller kiln, carrying out nucleation and crystallization treatment at a low temperature for short time and then carrying out annealing treatment to obtain artificial jade or microcrystalline glass, or comprises when a nucleation agent use ratio is 0, melting the rest of the above raw materials to obtain a glass liquid, carrying out cooling and molding, and carrying out annealing treatment to obtain high-strength glass. The energy-saving high-strength microcrystalline glass has the advantages of low melting temperature, short crystallization time, good chemical, mechanical and electrical performances of the product, energy saving and low cost.

Description

technical field [0001] The present invention relates to a glass. In particular, it relates to an energy-saving high-strength glass-ceramic and a preparation method thereof. Background technique [0002] The current glass industry mostly uses the calcium silicon system: SiO 2 : 35-75%, CaO: 2-26%, MgO: 0-10%, Al 2 o 3 : 1-15%, flux 0-20%, crystal nucleus agent: 1-10%. There are problems such as "difficult glass melting, high crystallization temperature, and long crystallization time; and chemical, mechanical, and electrical properties decrease". [0003] At present, Wuxi South Technology Co., Ltd. has proposed a patent application (201010150473.1) for a lightweight and high-strength microcrystalline ceramic insulation board, and its formula is: SiO 2 : 30-75%, Al 2 o 3 : 5-20%. CaO: 1-12%, MgO: 1-15%. Fe 2 o 3 +FeO: 1-10%, R 2 O: 1-10%. Crystal nucleating agent: 1-8%. There are still problems such as "glass melting is difficult, the crystallization temperature i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/00C03B32/02
Inventor 卢爱民
Owner 卢爱民