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Dark green glass ceramics and preparation method thereof

A glass-ceramic and dark green technology, which is applied in glass manufacturing equipment, glass furnace equipment, glass molding, etc., can solve the problem of poor flexural strength and water resistance, limited application fields of glass-ceramics, and poor coloring performance. Stability and other issues, to achieve the effect of high compressive strength, fine color, stable coloring performance

Inactive Publication Date: 2020-03-31
中郡庄艺(泉州)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the surface layer and inner layer of glass-ceramics produced by traditional methods often have a large number of technical pores, and the flexural strength and water resistance are not strong, and the coloring performance is unstable, which limits the application field of glass-ceramics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for preparing dark green glass-ceramic, said method comprising the following steps:

[0036] (1) Pretreat cordierite and spodumene with 10% HF solution for 3 hours;

[0037](2) put cordierite, spodumene and other basic glass-ceramic raw materials and colorants pretreated in step (1) into a mixer and mix evenly;

[0038] (3) Send the mixed material into the electric melting furnace, melt it at 1400-1500°C, and clarify it to obtain molten glass;

[0039] (4) The obtained molten glass is calendered at 1120-1180°C to obtain a glass plate with a thickness of 10mm;

[0040] (5) Heat the obtained glass plates at 540°C for 1 hour, then evenly raise the temperature to 610°C, hold the heat for 3 hours, then raise the temperature to 720°C and hold the heat for 0.5 hours to obtain dark green glass-ceramics.

[0041] In parts by weight, the basic glass-ceramic contains 55 parts of silicon dioxide, 5 parts of strontium oxide, 6 parts of cordierite, 5 parts of spodumene, 2 ...

Embodiment 2

[0044] A method for preparing dark green glass-ceramic, said method comprising the following steps:

[0045] (1) Pretreat cordierite and spodumene with 12% HF solution for 2.5 hours;

[0046] (2) put cordierite, spodumene and other basic glass-ceramic raw materials and colorants pretreated in step (1) into a mixer and mix evenly;

[0047] (3) Send the mixed material into the electric melting furnace, melt it at 1400-1500°C, and clarify it to obtain molten glass;

[0048] (4) The obtained molten glass is calendered at 1120-1180°C to obtain a glass plate with a thickness of 15mm;

[0049] (5) Heat the obtained glass plate at 560°C for 2 hours, then evenly raise the temperature to 630°C, hold it for 1 hour, then raise the temperature to 740°C and hold it for 0.5h, to obtain dark green glass-ceramics.

[0050] In parts by weight, the basic glass-ceramic contains 60 parts of silicon dioxide, 8 parts of strontium oxide, 8 parts of cordierite, 7 parts of spodumene, 4 parts of bismu...

Embodiment 3

[0053] A method for preparing dark green glass-ceramic, said method comprising the following steps:

[0054] (1) Pretreat cordierite and spodumene with 13% HF solution for 2 hours;

[0055] (2) put cordierite, spodumene and other basic glass-ceramic raw materials and colorants pretreated in step (1) into a mixer and mix evenly;

[0056] (3) Send the mixed material into the electric melting furnace, melt it at 1400-1500°C, and clarify it to obtain molten glass;

[0057] (4) The obtained molten glass is calendered at 1120-1180°C to obtain a glass plate with a thickness of 10mm-15mm;

[0058] (5) Heat the obtained glass plates at 550°C for 1.5h, then evenly raise the temperature to 620°C, hold for 2h, then raise the temperature to 730°C for 1h, and obtain dark green glass-ceramics.

[0059] In parts by weight, the basic glass-ceramic contains 57 parts of silicon dioxide, 7 parts of strontium oxide, 7 parts of cordierite, 6 parts of spodumene, 3 parts of bismuth oxide, 1.5 parts...

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PUM

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Abstract

The invention belongs to the field of glass, and discloses dark green glass ceramics and a preparation method thereof. The dark green glass ceramics comprise a coloring agent and basic glass ceramics,the coloring agent is a dark green coloring agent, and the basic glass ceramics comprises silicon dioxide, strontium oxide, cordierite, spodumene, bismuth oxide, aluminum oxide, calcium oxide, fluorine, lithium oxide, sodium oxide, potassium oxide, zinc oxide, titanium dioxide and zirconium dioxide. The dark green glass ceramics are stable in coloring performance, fine and smooth in color, high in light transmittance, free of air holes in the surface, high in impact toughness, fracture resistance and compressive strength and high in machining forming performance.

Description

technical field [0001] The invention relates to the field of glass, in particular to a dark green glass-ceramic and a preparation method thereof. Background technique [0002] Glass-ceramic, also known as glass-ceramic, is a new type of material developed by combining glass and ceramic technology. Melting is carried out to form the basic glass, which is almost entirely amorphous due to its extremely fast cooling rate. Due to its excellent thermal stability, chemical stability and mechanical properties, glass-ceramic is widely used in the fields of electronics, chemical industry, military, aerospace, nuclear industry and construction. [0003] However, high-quality glass-ceramic has strict requirements on its formula composition and addition amount, and there is no obvious rule to follow. Such as Song Xue, Wen Yuran and others have studied ZrO 2 The impact on the crystallization and fracture toughness of tailings glass-ceramics, it is found that the density, acid resistanc...

Claims

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Application Information

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IPC IPC(8): C03C6/06C03C10/00C03C4/02C03C1/04C03C1/02C03B5/16C03B13/00C03B32/02
CPCC03B5/16C03B13/00C03B32/02C03C1/00C03C1/026C03C1/04C03C4/02C03C10/00
Inventor 曾明周胜良
Owner 中郡庄艺(泉州)新材料有限公司
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