CN103641319B - A kind of low-fluorine microcrystalline glass - Google Patents
A kind of low-fluorine microcrystalline glass Download PDFInfo
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- CN103641319B CN103641319B CN201310665701.2A CN201310665701A CN103641319B CN 103641319 B CN103641319 B CN 103641319B CN 201310665701 A CN201310665701 A CN 201310665701A CN 103641319 B CN103641319 B CN 103641319B
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Abstract
The invention provides a kind of low-fluorine microcrystalline glass, include following composition: 55%≤silicon dioxide ＜ 56% by weight percentage, 8% ＜ potassium oxide≤12%, 13%≤calcium oxide ＜ 18%, 1%≤fluorine≤3%, 0≤aluminium oxide ＜ 1%, 0 ＜ zinc oxide≤4%, 0 ＜ titanium oxide≤2%, surplus is sodium oxide.The low-fluorine microcrystalline glass perception that the present invention provides presents translucent beautiful matter shape, has moist degree and waxiness sense, the exquisite in texture of natural jade, glittering and translucent, radiationless, and also good toughness, intensity are high, easily it is processed further molding, the field such as succedaneum that can be widely used in high-grade stone.
Description
Technical field
The present invention relates to glass-ceramic field, particularly to a kind of low-fluorine microcrystalline glass.
Background technology
Along with Chinese national economy stablizes sustainable development, people's living standard improves therewith, builds top grade
The demand expanding day of material, particularly the most urgent to the substitute products demand of radiationless high-grade stone,
But the substitute products fragility of domestic high-grade stone is big, it is not easy to machine-shaping, cause a lot of high-grade stone
Material needs from external import, and cost significantly increases.
Devitrified glass is also called glass-ceramic, have glass and pottery double grading, devitrified glass by
Crystal forms, and its atomic arrangement is regular, and therefore, devitrified glass is higher than the brightness of pottery, and ratio
Glass toughness is strong.Triple advantages of glass, pottery and lithotome concentrated by devitrified glass, are better than sky
So stone material and pottery, can be used for building curtain wall and indoor high-grade decoration, also can do structural wood mechanically
Material, the insulant on electronics, electrician, the baseboard material of large scale integrated circuit, microwave oven are heat-resisting
Split vessel, chemical industry and anti-corrosion material and mine high-abrasive material etc., become the replacement of preferable high-grade stone
Product.
Existing devitrified glass mostly is high fluorine glass product, volatilizees aborning due to fluorine serious, makes raw
The bad control of stability produced, causes devitrified glass to produce success rate relatively low, even if successfully producing micro-
Crystal glass there is also that tone is single, do not have that texture, apparent porosity are high, production stability is low and crisp
Property big, it is not easy to shortcomings such as machine-shaping, and high fluorine glass product is rotten to kiln in process of production
Erosion is serious, causes kiln shortening in service life, and production cost increases.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of exquisite in texture, glittering and translucent, good toughness,
The low-fluorine microcrystalline glass that intensity is high.
For solving above-mentioned technical problem, the low-fluorine microcrystalline glass that the present invention provides is wrapped by weight percentage
Include following composition: 55%≤silicon dioxide ＜ 56%, 8% ＜ potassium oxide≤12%, 13%≤calcium oxide ＜
18%, 1%≤fluorine≤3%, 0≤aluminium oxide ＜ 1%, 0 ＜ zinc oxide≤4%, 0 ＜ titanium oxide≤2%,
Surplus is sodium oxide.
The most defined below at each composition of the devitrified glass of present invention offer:
Silicon dioxide gives the good chemical stability of devitrified glass and heat stability, can improve crystallite glass
The intensity of glass, reduces the coefficient of expansion of devitrified glass, but along with content increases, can cause vitreous humour
Viscosity increases, and the glass melting temperature of devitrified glass raises, and therefore the content of silicon dioxide is set as: 55%
≤ silicon dioxide ＜ 56%.
Potassium oxide is good cosolvent, can improve the glossiness of devitrified glass, promotes the molten of vitreous humour
Change and clarification, moreover it is possible to reducing the viscosity of vitreous humour, therefore the content of potassium oxide is set as: 8% ＜ oxidation
Potassium≤12%.
Calcium oxide can reduce the high temperature viscosity of vitreous humour, promotes fusing and the clarification of vitreous humour, increases micro-
The chemical stability of crystal glass, mechanical strength and hardness, therefore the content of calcium oxide is set as: 13%
≤ calcium oxide ＜ 18%.
Fluorine is a kind of excellent opacifiers, and when Oil repellent is too high, the production stability of devitrified glass is low, crisp
Property big, easy devitrification, therefore the content of fluorine is set as: 1%≤fluorine≤3%, it is highly preferred that 1%≤fluorine
＜ 2%.
Aluminium oxide can reduce the tendency towards devitrification of devitrified glass, improve chemical stability and mechanical strength and
Hardness, improves heat stability, reduces electrical insulating property, but along with the lifting of alumina content, can cause
Devitrified glass surface generation striped, and the viscosity of vitreous humour can be improved, make fusing and clarification that difficulty to occur,
Increasing tendency towards devitrification on the contrary, therefore the content of aluminium oxide is set as: 0≤aluminium oxide ＜ 1%.
Zinc oxide can improve the chemical stability of devitrified glass, reduces the thermal coefficient of expansion of devitrified glass,
But along with the increase of zinc oxide content, ceramics tendency, the therefore content of zinc oxide can be increased
It is set as: 0 ＜ zinc oxide≤4%.
Titanium oxide can reduce the thermal coefficient of expansion of devitrified glass, but when introducing too much, can increase crystallite glass
The crystallize ability of glass, therefore the content of titanium oxide is set as: 0 ＜ titanium oxide≤2%.
Sodium oxide can reduce the viscosity of vitreous humour, promotes fusing and clarification, the therefore crystallite glass of vitreous humour
The remaining composition of glass is set as sodium oxide.
In low-fluorine microcrystalline glass of the present invention, Oil repellent is low, and the composition proportion of its low fluorine low silicon height potassium is conducive to
Improve stability and success rate, the low-fluorine microcrystalline glass surface of mentioned component proportioning that devitrified glass produces
The porosity is low, and water absorption rate is low, impact flexibility and anti-folding, comprcssive strength height, and machine-shaping property is strong,
The perception of this low-fluorine microcrystalline glass presents translucent beautiful matter shape, and exquisite in texture is glittering and translucent.
Preferably, the principal crystalline phase of described low-fluorine microcrystalline glass is Na4～3K2～3Ca5(Si12O30)F4, this
Kind of crystalline phase is lath-shaped, substantially increases toughness and the bending and compressive strength of low-fluorine microcrystalline glass, and easily
In processing cutting.
Preferably, the impact flexibility of described low-fluorine microcrystalline glass is 5.0kj/cm3～5.6kj/cm3。
Preferably, the Mohs' hardness of described low-fluorine microcrystalline glass is 6.0～7.0.
Preferably, the rupture strength of described low-fluorine microcrystalline glass is 65MPa～85MPa.
Preferably, the comprcssive strength of described low-fluorine microcrystalline glass is 600MPa～700MPa.
Preferably, the bulk density of described low-fluorine microcrystalline glass is 2.5g/cm3～2.8g/cm3。
The low-fluorine microcrystalline glass perception that the present invention provides presents translucent beautiful matter shape, has natural jade
Moist degree and waxiness sense, exquisite in texture, glittering and translucent, radiationless, and also good toughness, intensity are high,
Easily it is processed further molding, the field such as succedaneum that can be widely used in high-grade stone.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of invention, feature and advantage to become apparent from, the tool to the present invention below
Body embodiment is described in detail.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but the present invention
Other can also be used to be different from alternate manner described here implement, those skilled in the art can be not
Doing similar popularization in the case of running counter to intension of the present invention, therefore the present invention is not by following public specific embodiment
Restriction.
Table 1 is the performance parameter table of low-fluorine microcrystalline glass under heterogeneity forms.
Under conditions of knowing concrete component content, the low fluorine of the present invention can be prepared by methods known in the art
Devitrified glass, is preferably prepared as follows:
1, quartz sand, soda, potassium carbonate, calcite, aluminium oxide, calcium fluoride, zinc oxide, oxygen are selected
One or more changed in titanium provide the one-tenth of low fluorine Jade-like microcrystalline glass to be grouped into, by table 1 as raw material
The composition proportion of middle embodiment calculates the consumption of raw material, is mixed to get basestocks after weighing；
2, basestocks is melted at 1450 DEG C～1500 DEG C 16h～24h, after clarification, obtain vitreous humour；
3, by vitreous humour calendering formation at 1050 DEG C～1100 DEG C, the plate that thickness is 5mm～30mm is made
Material；
4, sheet material is incubated at 650 DEG C～900 DEG C 6h～12h and carries out Crystallizing treatment, then cooled down by blower fan
Annealing prepares low-fluorine microcrystalline glass, is incubated 1～2h at 650 DEG C the most successively, and 700 DEG C are incubated 1～2h,
750 DEG C of insulations 1～2h, 800 DEG C of insulations 1～2h, 850 DEG C of insulations 1～2h and 900 DEG C of insulations 1～2h carry out crystalline substance
Change processes.
Table 1
As shown in table 1, the low-fluorine microcrystalline glass of the present invention has higher anti-folding and comprcssive strength, and hardness is high,
Impact flexibility is strong.Finished product low-fluorine microcrystalline glass has moist degree and a waxiness sense of natural jade, exquisite in texture,
Glittering and translucent, various sizes of section bar can be prepared as to facilitate processing.
Although the present invention combines above example and is described, but the present invention is not limited to above-mentioned reality
Executing example, and be only defined by the appended claims, it can easily be carried out by those of ordinary skill in the art
Modifications and variations, but and without departing from the essential idea of the present invention and scope.
Claims (6)
1. a low-fluorine microcrystalline glass, it is characterised in that include following composition by weight percentage
Basestocks: 55%≤silicon dioxide ＜ 56%, 8% ＜ potassium oxide≤12%, 13%≤calcium oxide ＜ 18%,
1%≤fluorine≤3%, 0≤aluminium oxide ＜ 1%, 0 ＜ zinc oxide≤4%, 0 ＜ titanium oxide≤2%, surplus
For sodium oxide, at 1450 DEG C～1500 DEG C, melt 16h～24h obtain vitreous humour, and at 1050 DEG C
～at 1100 DEG C, it is rolled into the sheet material that thickness is 5mm～30mm, at 650 DEG C～900 DEG C, it is incubated 6h～12h
Carry out Crystallizing treatment, prepare low-fluorine microcrystalline glass by blower fan cooling annealing；Described low-fluorine microcrystalline glass
Principal crystalline phase be Na4～3K2～3Ca5(Si12O30)F4。
Low-fluorine microcrystalline glass the most according to claim 1, it is characterised in that described low fluorine crystallite
The impact flexibility of glass is 5.0kj/cm3～5.6kj/cm3。
Low-fluorine microcrystalline glass the most according to claim 1, it is characterised in that described low fluorine crystallite
The Mohs' hardness of glass is 6.0～7.0.
Low-fluorine microcrystalline glass the most according to claim 1, it is characterised in that described low fluorine crystallite
The rupture strength of glass is 65MPa～85MPa.
Low-fluorine microcrystalline glass the most according to claim 1, it is characterised in that described low fluorine crystallite
The comprcssive strength of glass is 600MPa～700MPa.
Low-fluorine microcrystalline glass the most according to claim 1, it is characterised in that described low fluorine crystallite
The bulk density of glass is 2.5g/cm3～2.8g/cm3。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310665701.2A CN103641319B (en) | 2013-12-06 | 2013-12-06 | A kind of low-fluorine microcrystalline glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310665701.2A CN103641319B (en) | 2013-12-06 | 2013-12-06 | A kind of low-fluorine microcrystalline glass |
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| CN103641319A CN103641319A (en) | 2014-03-19 |
| CN103641319B true CN103641319B (en) | 2016-10-19 |
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| CN201310665701.2A Active CN103641319B (en) | 2013-12-06 | 2013-12-06 | A kind of low-fluorine microcrystalline glass |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107902910B (en) * | 2017-12-27 | 2021-06-22 | 安徽凤阳亚欧玻璃工艺品有限公司 | Corrosion-resistant glass ceramics |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5434111A (en) * | 1992-04-10 | 1995-07-18 | Schott Glaswerke | Lead- and barium-free crystal glass having high optical transmission |
| CN1834056A (en) * | 2005-04-11 | 2006-09-20 | 九江金凤凰装饰材料有限公司 | Decorative material and prepn. thereof |
| CN102807324A (en) * | 2012-09-05 | 2012-12-05 | 北京大有盛和科技有限公司 | Natural-hetian-jade-imitated glass ceramics and preparation method for same |
-
2013
- 2013-12-06 CN CN201310665701.2A patent/CN103641319B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5434111A (en) * | 1992-04-10 | 1995-07-18 | Schott Glaswerke | Lead- and barium-free crystal glass having high optical transmission |
| CN1834056A (en) * | 2005-04-11 | 2006-09-20 | 九江金凤凰装饰材料有限公司 | Decorative material and prepn. thereof |
| CN102807324A (en) * | 2012-09-05 | 2012-12-05 | 北京大有盛和科技有限公司 | Natural-hetian-jade-imitated glass ceramics and preparation method for same |
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