CN103641315B - A kind of preparation method of bowlder-like devitrified glass - Google Patents
A kind of preparation method of bowlder-like devitrified glass Download PDFInfo
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- CN103641315B CN103641315B CN201310655747.6A CN201310655747A CN103641315B CN 103641315 B CN103641315 B CN 103641315B CN 201310655747 A CN201310655747 A CN 201310655747A CN 103641315 B CN103641315 B CN 103641315B
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Abstract
The invention provides a kind of preparation method of bowlder-like devitrified glass, after comprising the steps: raw material to weigh, mixing obtains basestocks; Basestocks is melted 16h ~ 20h at 1380 DEG C ~ 1450 DEG C, obtains glass metal; After glass metal being cooled to 1200 DEG C ~ 1250 DEG C clarifications, continue be cooled to 1000 DEG C ~ 1050 DEG C and be incubated 10min ~ 1h, obtain Semi-finished glass material; Semi-finished glass material is poured in mould and be incubated 3h ~ 12h at 550 DEG C ~ 650 DEG C, then after 4h ~ 14h is warming up to 780 DEG C ~ 840 DEG C, is incubated 3h ~ 10h carries out Crystallizing treatment, i.e. obtained bowlder-like devitrified glass of then at the uniform velocity annealing.Method provided by the invention is simple to operate, can obtain and have natural jade texture, presents translucent beautiful matter shape, has the moist degree of natural jade and the bowlder-like devitrified glass of wax sense; Obtained bowlder-like devitrified glass good toughness, intensity is high, water-intake rate is low, radiationless, machinable is carved, and is applied to interior/exterior decoration, artwork, furniture, vessel making etc.
Description
Technical field
The present invention relates to glass-ceramic field, particularly a kind of preparation method of bowlder-like devitrified glass.
Background technology
Along with Chinese national economy stablizes sustainable development, people's living standard improves thereupon, to the demand expanding day of high-grade material, particularly more urgent to the substitute products demand of radiationless high-grade stone, but the substitute products fragility of domestic high-grade stone is large, be not easy machine-shaping, cause a lot of high-grade stone needs from external import, cost greatly promotes.
Devitrified glass is also called glass-ceramic, and have the dual nature of glass and pottery, devitrified glass is made up of crystal, and its atomic arrangement is regular, and therefore, devitrified glass is higher than the brightness of pottery, and stronger than glass toughness.Triple advantages of glass, pottery and lithotome concentrated by devitrified glass, 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 microwave oven vessel of resistance to hot tearing, chemical industry and impregnating material and mine high-abrasive material etc., become the substitute products of desirable high-grade stone.
The obtained devitrified glass of the production method of the devitrified glass of current maturation all also exist tone single, there is no texture; Apparent porosity is high, poor durability; Fragility is large, be not easy the shortcomings such as machine-shaping, and cause devitrified glass to utilize space little, share of market is low, seriously inhibits the development of devitrified glass industry.
Summary of the invention
The technical problem to be solved in the present invention is the preparation method of the bowlder-like devitrified glass of the bowlder-like devitrified glass providing a kind of good toughness, intensity high.
For solving the problems of the technologies described above, the preparation method of bowlder-like devitrified glass provided by the invention comprises the steps:
1) after being weighed by raw material, mixing obtains basestocks;
2) basestocks obtained in step 1) is melted 16h ~ 20h at 1380 DEG C ~ 1450 DEG C, obtain glass metal, described basestocks melts at the temperature disclosed above and can effectively ensure fully to dissolve, and reduces the bubble rate in glass metal, thus reduces the apparent porosity of bowlder-like devitrified glass;
3) by step 2) in after the glass metal that obtains is cooled to 1200 DEG C ~ 1250 DEG C clarifications, continue be cooled to 1000 DEG C ~ 1050 DEG C and be incubated 10min ~ 1h h, obtain Semi-finished glass material, this step is conducive to the apparent porosity reducing bowlder-like devitrified glass, the process of 10min ~ 1h is incubated by manually choosing the method realization of material, roasting material in this step, namely, when glass metal continues to be cooled to 1000 DEG C ~ 1050 DEG C, manually glass metal is taken out and 10min ~ 1h is processed to the glass metal taken out roasting material at 1000 DEG C ~ 1050 DEG C;
4) the Semi-finished glass material obtained in step 3) is poured in mould at 550 DEG C ~ 650 DEG C, be incubated 3h ~ 12h, after 4h ~ 14h is warming up to 780 DEG C ~ 840 DEG C, be incubated 3h ~ 10h again and carry out Crystallizing treatment, then at the uniform velocity anneal and namely obtain bowlder-like devitrified glass, the apparent porosity of bowlder-like devitrified glass can be reduced further after above-mentioned thermal treatment, the toughness of effective raising bowlder-like devitrified glass and intensity, strengthen machine-shaping property.The principal crystalline phase of the bowlder-like devitrified glass that the present invention obtains is Na
4 ~ 3k
2 ~ 3ca
5(Si
12o
30) F
4, this crystalline phase is lath-shaped, substantially increases toughness and the bending and compressive strength of bowlder-like devitrified glass, and is easy to processing cutting.
Preferably, described bowlder-like devitrified glass comprises following composition by weight percentage: silicon-dioxide 55% ~ 65%, potassium oxide 5% ~ 15%, calcium oxide 13% ~ 20%, Calcium Fluoride (Fluorspan) 10% ~ 15%, aluminum oxide 2% ~ 8%, zinc oxide 4% ~ 10%, selenium trioxide 0.5% ~ 1.5%, Cadmium Sulfide 1% ~ 2%, surplus is sodium oxide, and the bowlder-like devitrified glass perception of this composition proportion presents red translucent beautiful matter shape, has moist degree and the wax sense of natural jade.
Silicon-dioxide gives the good chemical stability of devitrified glass and thermostability, the intensity of devitrified glass can be improved, reduce the coefficient of expansion of devitrified glass, but along with content increases, the viscosity of glass metal can be caused to increase, the glass melting temperature of devitrified glass raises, and therefore the content of silicon-dioxide is set as: silicon-dioxide 50% ~ 65%.
Potassium oxide is good solubility promoter, can improve the glossiness of devitrified glass, and promote fusing and the clarification of glass metal, can also reduce the viscosity of glass metal, therefore the content of potassium oxide is set as: potassium oxide 5% ~ 15%.
Calcium oxide can reduce the high temperature viscosity of glass metal, and promote fusing and the clarification of glass metal, increase the chemical stability of devitrified glass, physical strength and hardness, therefore the content of calcium oxide is set as: calcium oxide 13% ~ 20%.
Calcium Fluoride (Fluorspan) provides the source of fluorine for devitrified glass, and fluorine is a kind of excellent opacifying agent, and when Oil repellent is too high, the chemical stability of devitrified glass reduces, and easy devitrification, because the content drawing Calcium Fluoride (Fluorspan) is set as: Calcium Fluoride (Fluorspan) 10% ~ 15%.
Aluminum oxide can reduce the tendency towards devitrification of devitrified glass, improve chemical stability and physical strength and hardness, improve thermostability, reduce electrical insulating property, but along with the lifting of alumina content, devitrified glass surface can be caused to produce striped, and the viscosity of glass metal can be improved, make fusing and clarification that difficulty occur, increase tendency towards devitrification on the contrary, therefore the content of aluminum oxide is set as: aluminum oxide 2% ~ 8%.
Zinc oxide can improve the chemical stability of devitrified glass, reduces the thermal expansivity of devitrified glass, but along with the increase of zinc oxide content, can increase ceramics tendency, therefore the content of zinc oxide is set as: zinc oxide 4% ~ 10%.
Selenium trioxide and Cadmium Sulfide exist as toner, and can promote that devitrified glass forms bowlder-like texture, perception and sense of touch are closer to natural jade, and therefore both content is set as: selenium trioxide 0.5% ~ 1.5%, Cadmium Sulfide 1% ~ 2%.
Sodium oxide can reduce the viscosity of glass metal, and promote fusing and the clarification of glass metal, therefore the remaining composition of devitrified glass is set as sodium oxide.
More preferably, quartz sand, soda ash, salt of wormwood, calcite, fluorite, aluminum oxide, zinc oxide, selenium trioxide, cadmium yellow is selected to provide the one-tenth of bowlder-like devitrified glass to be grouped into as raw material in described step 1).
Method provided by the invention is simple to operate, can obtain and have natural jade texture, presents translucent beautiful matter shape, has the moist degree of natural jade and the bowlder-like devitrified glass of wax sense; Obtained bowlder-like devitrified glass good toughness, intensity is high, water-intake rate is low, radiationless, machinable is carved, and is applied to interior/exterior decoration, artwork, furniture, vessel making etc.
Embodiment
For enabling above-mentioned purpose, the feature and advantage of invention more become apparent, below the specific embodiment of the present invention is described in detail.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
Embodiment 1
Select quartz sand 57 parts, soda ash 14 parts, 20 parts, salt of wormwood, 25 parts, calcite, 14 parts, fluorite, 2 parts, aluminum oxide, 4 parts, zinc oxide, selenium trioxide 0.6 part, cadmium yellow 1.2 parts for raw material, after mixing, obtain basestocks; Basestocks is melted 18h at 1400 DEG C, obtains glass metal; After glass metal being cooled to 1200 DEG C of clarifications, continuing be cooled to 1020 DEG C and be incubated 10min, obtain red Semi-finished glass material; Semi-finished glass material is incubated 3h at 600 DEG C, then after 4h is evenly warming up to 820 DEG C, is incubated 3h carries out Crystallizing treatment, i.e. obtained bowlder-like devitrified glass of then at the uniform velocity annealing.
The volume density of the bowlder-like devitrified glass that the present embodiment obtains is 3.0g/cm
3, folding strength is 80MPa, and ultimate compression strength is 800MPa, and Mohs' hardness is 7.0, and impelling strength is 5.5kj/cm
3, there is natural jade texture, present red translucent beautiful matter shape, there is moist degree and the wax sense of natural jade.
Embodiment 2
Select quartz sand 54 parts, soda ash 16 parts, 18 parts, salt of wormwood, 25 parts, calcite, 16 parts, fluorite, 3 parts, aluminum oxide, 6 parts, zinc oxide, selenium trioxide 0.8 part, cadmium yellow 1.2 parts for raw material, after mixing, obtain basestocks; Basestocks is melted 24h at 1380 DEG C, obtains glass metal; After glass metal being cooled to 1220 DEG C of clarifications, continuing be cooled to 1000 DEG C and be incubated 1h, obtain red Semi-finished glass material; Semi-finished glass material is incubated 5h at 550 DEG C, then after 8h is evenly warming up to 800 DEG C, is incubated 6h carries out Crystallizing treatment, i.e. obtained bowlder-like devitrified glass of then at the uniform velocity annealing.
The volume density of the bowlder-like devitrified glass that the present embodiment obtains is 3.0g/cm
3, folding strength is 75MPa, and ultimate compression strength is 750MPa, and Mohs' hardness is 6.5, and impelling strength is 5.2kj/cm
3, there is natural jade texture, present red translucent beautiful matter shape, there is moist degree and the wax sense of natural jade.
Embodiment 3
Select quartz sand 60 parts, soda ash 12 parts, 24 parts, salt of wormwood, 20 parts, calcite, 18 parts, fluorite, 8 parts, aluminum oxide, 10 parts, zinc oxide, selenium trioxide 0.5 part, cadmium yellow 1.0 parts for raw material, after mixing, obtain basestocks; Basestocks is melted 20h at 1420 DEG C, obtains glass metal; After glass metal being cooled to 1250 DEG C of clarifications, continuing be cooled to 1050 DEG C and be incubated 40min, obtain red Semi-finished glass material; Semi-finished glass material is incubated 4h at 580 DEG C, then after 6h is evenly warming up to 780 DEG C, is incubated 4h carries out Crystallizing treatment, i.e. obtained bowlder-like devitrified glass of then at the uniform velocity annealing.
The volume density of the bowlder-like devitrified glass that the present embodiment obtains is 2.9g/cm
3, folding strength is 70MPa, and ultimate compression strength is 700MPa, and Mohs' hardness is 6.8, and impelling strength is 6.0kj/cm
3, there is natural jade texture, present red translucent beautiful matter shape, there is moist degree and the wax sense of natural jade.
Embodiment 4
Select quartz sand 62 parts, soda ash 18 parts, 16 parts, salt of wormwood, 22 parts, calcite, 14 parts, fluorite, 4 parts, aluminum oxide, 8 parts, zinc oxide, selenium trioxide 1.3 parts, cadmium yellow 2.0 parts for raw material, after mixing, obtain basestocks; Basestocks is melted 16h at 1450 DEG C, obtains glass metal; After glass metal being cooled to 1230 DEG C of clarifications, continuing be cooled to 1030 DEG C and be incubated 20min, obtain red Semi-finished glass material; Semi-finished glass material is incubated 10h at 560 DEG C, then after 12h is evenly warming up to 840 DEG C, is incubated 10h carries out Crystallizing treatment, i.e. obtained bowlder-like devitrified glass of then at the uniform velocity annealing.
The volume density of the bowlder-like devitrified glass that the present embodiment obtains is 3.0g/cm
3, folding strength is 78MPa, and ultimate compression strength is 650MPa, and Mohs' hardness is 7.5, and impelling strength is 5.4kj/cm
3, there is natural jade texture, present red translucent beautiful matter shape, there is moist degree and the wax sense of natural jade.
Although the present invention is described in conjunction with above embodiment, but the present invention is not defined to above-described embodiment, and only by the restriction of claims, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present invention and scope.
Claims (2)
1. a preparation method for bowlder-like devitrified glass, is characterized in that, comprises the steps:
1) after being weighed by raw material, mixing obtains basestocks;
2) by step 1) in the basestocks that obtains at 1380 DEG C ~ 1450 DEG C, melt 16h ~ 20h, obtain glass metal;
3) by step 2) in after the glass metal that obtains is cooled to 1200 DEG C ~ 1250 DEG C clarifications, continue be cooled to 1000 DEG C ~ 1050 DEG C and be incubated 10min ~ 1h, obtain Semi-finished glass material;
4) by step 3) in the Semi-finished glass material that obtains pour in mould be incubated 3h ~ 12h at 550 DEG C ~ 650 DEG C, after 4h ~ 14h is warming up to 780 DEG C ~ 840 DEG C, be incubated 3h ~ 10h again and carry out Crystallizing treatment, then at the uniform velocity anneal and namely obtain bowlder-like devitrified glass, described bowlder-like devitrified glass comprises following composition by weight percentage: silicon-dioxide 55% ~ 65%, potassium oxide 5% ~ 15%, calcium oxide 13% ~ 20%, Calcium Fluoride (Fluorspan) 10% ~ 15%, aluminum oxide 2% ~ 8%, zinc oxide 4% ~ 10%, selenium trioxide 0.5% ~ 1.5%, Cadmium Sulfide 1% ~ 2%, surplus is sodium oxide.
2. the preparation method of bowlder-like devitrified glass according to claim 1, it is characterized in that, described step 1) in select quartz sand, soda ash, salt of wormwood, calcite, fluorite, aluminum oxide, zinc oxide, selenium trioxide, cadmium yellow provide the one-tenth of bowlder-like devitrified glass to be grouped into as raw material.
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| CN106927677B (en) * | 2017-03-07 | 2019-10-01 | 陕西科技大学 | A method of jade stone glass is prepared using cullet |
| 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 |
| CN111170641A (en) * | 2019-11-27 | 2020-05-19 | 海南中航特玻科技有限公司 | Preparation method for preparing super-white microcrystalline glass stone from blast furnace slag |
| CN112759254A (en) * | 2021-03-09 | 2021-05-07 | 中国建筑材料科学研究总院有限公司 | Fluoride-free and lead-free jade-like glass and preparation method and application thereof |
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| CN101805128A (en) * | 2010-04-20 | 2010-08-18 | 香港福山实业有限公司 | Jade-type glass-ceramic and preparation method thereof |
| CN102079628A (en) * | 2009-11-27 | 2011-06-01 | 骆水根 | Method of stone-like surface treatment for glass-ceramic surface |
| CN102199002A (en) * | 2011-01-22 | 2011-09-28 | 广东三圆微晶玻璃科技有限公司 | Jade crystal glass ceramic |
| CN103011603A (en) * | 2013-01-05 | 2013-04-03 | 山东博大集团有限公司 | Low-corrosion microcrystal jade ware and manufacturing method thereof |
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Patent Citations (4)
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|---|---|---|---|---|
| CN102079628A (en) * | 2009-11-27 | 2011-06-01 | 骆水根 | Method of stone-like surface treatment for glass-ceramic surface |
| CN101805128A (en) * | 2010-04-20 | 2010-08-18 | 香港福山实业有限公司 | Jade-type glass-ceramic and preparation method thereof |
| CN102199002A (en) * | 2011-01-22 | 2011-09-28 | 广东三圆微晶玻璃科技有限公司 | Jade crystal glass ceramic |
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