CN103663965A - Jade-like microcrystalline glass - Google Patents

Jade-like microcrystalline glass Download PDF

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Publication number
CN103663965A
CN103663965A CN201310655526.9A CN201310655526A CN103663965A CN 103663965 A CN103663965 A CN 103663965A CN 201310655526 A CN201310655526 A CN 201310655526A CN 103663965 A CN103663965 A CN 103663965A
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China
Prior art keywords
devitrified glass
jade
jade shape
shape devitrified
oxide
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CN201310655526.9A
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Inventor
魏高恒
高国良
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LIAONING HONGSHAN JADE TECHNOLOGY Co Ltd
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LIAONING HONGSHAN JADE TECHNOLOGY Co Ltd
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Priority to CN201310655526.9A priority Critical patent/CN103663965A/en
Publication of CN103663965A publication Critical patent/CN103663965A/en
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Abstract

Provided jade-like microcrystalline glass comprises the following components in percent by weight: 55%-65% of silica, 8-15% of sodium oxide, 5%-10% of potassium oxide, 15%-20% of calcium oxide, 2%-5% of fluorine and the balance alumina. The provided jade-like microcrystalline glass presents the impression of semitransparent jade, has the moist degree and the waxy texture of natural jade, is good in toughness and high in strength, is easy for further processing and shaping, and is widely applicable to the fields such as substitutes of high-grade stone and the like.

Description

A kind of jade shape devitrified glass
Technical field
The present invention relates to glass-ceramic field, particularly a kind of jade shape devitrified glass.
Background technology
Along with Chinese national economy is stablized sustainable development, people's living standard improves thereupon, demand expanding day to high-grade material, particularly more urgent to the substitute products demand of radiationless high-grade stone material, but the substitute products fragility of domestic high-grade stone material is large, be not easy machine-shaping, cause a lot of high-grade stone materials need to be from external import, cost greatly promotes.
Devitrified glass is called again glass-ceramic, has glass and ceramic dual nature, and devitrified glass is by crystal composition, and its atomic arrangement is regular, and therefore, devitrified glass is higher than ceramic brightness, and stronger than glass toughness.Devitrified glass has been concentrated triple advantages of glass, pottery and lithotome, be better than lithotome and pottery, can be used for building curtain wall and indoor high-grade decoration, also can do structured material mechanically, insulating material on electronics, electrician, the baseboard material of large-scale integrated circuit, the heat-resisting row vessel of microwave oven, chemical industry and impregnating material and mine high-abrasive material etc., become the substitute products of desirable high-grade stone material.
Existing devitrified glass exist tone single, there is no texture, apparent porosity is high and fragility is large, is not easy the shortcomings such as machine-shaping, causes devitrified glass to utilize space little, share of market is low, severe inhibition the development of devitrified glass industry.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of good toughness, jade shape devitrified glass that intensity is high.
For solving the problems of the technologies described above, jade shape devitrified glass provided by the invention comprises following composition by weight percentage: silicon-dioxide 55%~65%, and sodium oxide 8%~15%, potassium oxide 5%~10%, calcium oxide 15%~20%, fluorine 2%~5%, surplus is aluminum oxide.
Each composition at jade shape devitrified glass provided by the invention limits as follows by weight percentage:
Silicon-dioxide is given chemical stability and the thermostability that devitrified glass is good, can improve the intensity of devitrified glass, reduce the coefficient of expansion of devitrified glass, but along with content increases, can cause the viscosity of glass metal to increase, the glass melting temperature of devitrified glass raises, so the content of silicon-dioxide is set as: silicon-dioxide 55%~65%.
Sodium oxide can reduce the viscosity of glass metal, promote fusing and the clarification of glass metal, so the content of sodium oxide is set as: sodium oxide 8%~15%.
Potassium oxide is good solubility promoter, can improve the glossiness of devitrified glass, promotes fusing and the clarification of glass metal, can also reduce the viscosity of glass metal, so the content of potassium oxide is set as: potassium oxide 5%~10%.
Calcium oxide can reduce the high temperature viscosity of glass metal, promotes fusing and the clarification of glass metal, increase chemical stability, physical strength and the hardness of devitrified glass, so the content of calcium oxide is set as: calcium oxide 15%~20%.
Fluorine is a kind of good opacifying agent, and during fluorine too high levels, the chemical stability of devitrified glass reduces, easy devitrification, so the content of fluorine is set as: fluorine 2%~5%.
Aluminum oxide can reduce the tendency towards devitrification of devitrified glass, improves chemical stability and physical strength and hardness, improves thermostability, reduce electrical insulating property, so the remaining composition of devitrified glass is set as aluminum oxide.
The jade shape devitrified glass of the present invention zinc oxide that introducing can not improve the magnesium oxide of annealing temperature and can cause thermal expansivity to increase, and easily cause holding volatile Vanadium Pentoxide in FLAKES in product aberration and use, its mentioned component proportioning can effectively reduce the apparent porosity of jade shape devitrified glass, improve impelling strength and anti-folding, ultimate compression strength, strengthen machine-shaping property, the perception of this jade shape devitrified glass presents translucent beautiful matter shape, has moist degree and the wax sense of natural jade.
Preferably, the main crystalline phase of described jade shape devitrified glass is Na 4~3k 2~3ca 5(Si 12o 30) F 4, this crystalline phase is lath-shaped, has greatly improved toughness and the bending and compressive strength of jade shape devitrified glass, and is easy to processing cutting.
Preferably, the impelling strength of described jade shape devitrified glass is 5.0kj/cm 3~5.6kj/cm 3.
Preferably, the Mohs' hardness of described jade shape devitrified glass is 6.5~7.5.
Preferably, the folding strength of described jade shape devitrified glass is 65MPa~80MPa.
Preferably, the ultimate compression strength of described jade shape devitrified glass is 600MPa~800MPa.
Preferably, the visible light transmissivity of described jade shape devitrified glass is 30%~40%.
Jade shape devitrified glass perception provided by the invention presents translucent beautiful matter shape, has moist degree and the wax sense of natural jade, and good toughness, intensity are high, and easily further machine-shaping can be widely used in the fields such as substitute of high-grade stone material.
Embodiment
For above-mentioned purpose, the feature and advantage of invention can be become apparent more, below the specific embodiment of the present invention is described in detail.
A lot of details have been set forth in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from mode described here and implement, those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that, so the present invention is not subject to the restriction of following public embodiment.
Table 1
Figure BDA0000432194740000031
Table 1 is the performance perameter table of jade shape devitrified glass under heterogeneity forms.
Knowing under the condition of concrete component content, by methods known in the art, can make jade shape devitrified glass of the present invention, preferably preparation as follows:
1, one or more in selection quartz sand, calcite, albite, potassium felspar sand, fluorite, sodium carbonate, salt of wormwood, aluminum oxide, Sodium Silicofluoride provide the one-tenth of jade shape devitrified glass to be grouped into as raw material, the composition proportion of pressing embodiment in table 1 is calculated the consumption of raw material, after weighing, be mixed to get basestocks, to those skilled in the art, prepare jade shape devitrified glass raw material used and be not limited only to above-mentioned disclosed raw material, also can select other conventional raw material of this area;
2, basestocks is melted to 16h~24h at 1400 ℃~1500 ℃, after clarification, obtain glass metal;
3, glass metal is injected to die for molding;
4, the mould that is marked with glass metal is incubated to 3h~10h at 480 ℃~600 ℃, then after 4h~8h is warming up to 800 ℃~860 ℃, is incubated 3h~10h and carries out crystallization processing, then at the uniform velocity annealing makes jade shape devitrified glass.
As shown in table 1, jade shape devitrified glass of the present invention has higher anti-folding and ultimate compression strength, and hardness is high, and impelling strength is strong, and visible light transmissivity and natural jade are similar.Finished product jade shape devitrified glass has moist degree and the wax sense of natural jade, can be prepared into the section bar of different size to facilitate processing.
Although the present invention is described in conjunction with above embodiment, but the present invention is not defined to above-described embodiment, and being only subject to the restriction of claims, those of ordinary skills can easily modify to it and change, but do not leave essence design of the present invention and scope.

Claims (7)

1. a jade shape devitrified glass, is characterized in that, comprises by weight percentage following composition: silicon-dioxide 55%~65%, and sodium oxide 8%~15%, potassium oxide 5%~10%, calcium oxide 15%~20%, fluorine 2%~5%, surplus is aluminum oxide.
2. jade shape devitrified glass according to claim 1, is characterized in that, the main crystalline phase of described jade shape devitrified glass is Na 4~3k 2~3ca 5(Si 12o 30) F 4.
3. jade shape devitrified glass according to claim 1, is characterized in that, the impelling strength of described jade shape devitrified glass is 5.0kj/cm 3~5.6kj/cm 3.
4. jade shape devitrified glass according to claim 1, is characterized in that, the Mohs' hardness of described jade shape devitrified glass is 6.5~7.5.
5. jade shape devitrified glass according to claim 1, is characterized in that, the folding strength of described jade shape devitrified glass is 65MPa~80MPa.
6. jade shape devitrified glass according to claim 1, is characterized in that, the ultimate compression strength of described jade shape devitrified glass is 600MPa~800MPa.
7. jade shape devitrified glass according to claim 1, is characterized in that, the visible light transmissivity of described jade shape devitrified glass is 30%~40%.
CN201310655526.9A 2013-12-06 2013-12-06 Jade-like microcrystalline glass Pending CN103663965A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386162A (en) * 1981-10-05 1983-05-31 Corning Glass Works Alkali metal, calcium fluorosilicate glass-ceramic articles
DE4125698C1 (en) * 1991-08-02 1992-11-26 Schott Glaswerke, 6500 Mainz, De Glass ceramic material for replacing granite or marble in decorative applications - contains silica, alumina, calcia, magnesia, zirconia, barium oxide, potassium oxide, sodium oxide and fluorine
CN1160687A (en) * 1996-03-30 1997-10-01 大连理工大学 Fast-microcrystallized devitrified agrellite glass and its production process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386162A (en) * 1981-10-05 1983-05-31 Corning Glass Works Alkali metal, calcium fluorosilicate glass-ceramic articles
DE4125698C1 (en) * 1991-08-02 1992-11-26 Schott Glaswerke, 6500 Mainz, De Glass ceramic material for replacing granite or marble in decorative applications - contains silica, alumina, calcia, magnesia, zirconia, barium oxide, potassium oxide, sodium oxide and fluorine
CN1160687A (en) * 1996-03-30 1997-10-01 大连理工大学 Fast-microcrystallized devitrified agrellite glass and its production process

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Application publication date: 20140326