CN103663968A - Preparation method for jade-like microcrystalline glass - Google Patents
Preparation method for jade-like microcrystalline glass Download PDFInfo
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- CN103663968A CN103663968A CN201310655601.1A CN201310655601A CN103663968A CN 103663968 A CN103663968 A CN 103663968A CN 201310655601 A CN201310655601 A CN 201310655601A CN 103663968 A CN103663968 A CN 103663968A
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Abstract
A provided preparation method for jade-like microcrystalline glass comprises the following steps: 1) weighing raw materials and mixing to obtain a base material; 2) melting the base material at 1400 DEG C-1500 DEG C for 16 h-24 h, and clearing to obtain a glass liquid; 3) pouring the glass liquid of the step 2) into a mold for molding; 4) keeping the temperature of the mold filled with the glass liquid of the step 3) at 480 DEG C-600 DEG C for 3 h-10 h, then heating to 800 DEG C-860 DEG C within 4 h-8 h, keeping the temperature for 3 h-10 h, performing crystallization processing, and then performing uniform-speed annealing to prepare the jade-like microcrystalline glass. The provided method is simple in step and can help to prepare the jade-like microcrystalline glass which possesses natural jade texture, presents the impression of semitransparent jade and has the moist degree and the waxy texture of natural jade; and the prepared jade-like microcrystalline glass is good in toughness, high in strength, not easy for water adsorption and easy to clean, can be cut and engraved, and is applicable to indoor and outdoor decoration, and handicrafts, furniture and vessel making and the like.
Description
Technical field
The present invention relates to glass-ceramic field, particularly a kind of preparation method 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.
The devitrified glass that at present production method of ripe devitrified glass makes all exist tone single, there is no a texture; Apparent porosity is high, poor durability; Fragility is large, be not easy the shortcomings such as machine-shaping, causes devitrified glass to utilize space little, and 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 the preparation method of a kind of good toughness, jade shape devitrified glass that intensity is high.
For solving the problems of the technologies described above, the preparation method of jade shape devitrified glass provided by the invention comprises the steps:
1) after being weighed, raw material mix to obtain basestocks;
2) basestocks obtaining in step 1) is melted to 16h～24h at 1400 ℃～1500 ℃, after clarification, obtain glass metal, described basestocks melts and can effectively guarantee fully to dissolve under said temperature, reduces the bubble rate in glass metal, thereby reduces the apparent porosity of jade shape devitrified glass;
3) by step 2) in glass metal pour die for molding into, described mold shape can be life practical vessel or industrial sheet material shape;
4) mould that glass metal is housed in step 3) is incubated to 3h～10h at 480 ℃～600 ℃, after 4h～8h is warming up to 800 ℃～860 ℃, be incubated 3h～10h again and carry out crystallization processing, then at the uniform velocity annealing make jade shape devitrified glass, after above-mentioned thermal treatment, can further reduce the apparent porosity of jade shape devitrified glass, effectively improve toughness and the intensity of jade shape devitrified glass, strengthen machine-shaping property.The main crystalline phase of the jade shape devitrified glass that the present invention makes 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, described jade shape devitrified glass 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 of the jade shape devitrified glass that the present invention makes 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.
More preferably, in described step 1), select one or more in quartz sand, calcite, albite, potassium felspar sand, fluorite, sodium carbonate, salt of wormwood, aluminum oxide, Sodium Silicofluoride to provide the one-tenth of jade shape devitrified glass to be grouped into as raw material.
Preferably, the mould in described step 3) is cast iron or high temperature steel material, and this is mainly because above-mentioned two kinds of materials are easy to be processed into difform mould.
Method steps provided by the invention is simple, can make and have natural jade texture, presents translucent beautiful matter shape, has the moist degree of natural jade and the jade shape devitrified glass of wax sense; The jade shape devitrified glass good toughness, the intensity that make is high, do not absorb water, easy to clean, machinable engraving, is applied to indoor and outdoor and decorates, artwork, furniture, vessel making etc.
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 alternate manner 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 specific embodiment.
The raw material using in the embodiment of the present invention, for purchasing available raw mineral materials and industrial chemicals, has allowed inevitably impurity of trace; The dry pot of clay smelting furnace is used in basestocks fusing; Crystallization treating processes is carried out in track type stove.
Embodiment 1
Select 65 parts of quartz sands, 15 parts of calcites, 6 parts of fluorites, 10 parts of aluminum oxide, 12 parts of sodium carbonate, 15 parts of salt of wormwood, 4 parts of Sodium Silicofluorides are raw material, after mixing, obtain basestocks; Basestocks is melted to 24h at 1400 ℃, after clarification, obtain glass metal; Pour glass metal into high temperature steel mould molding; The mould that glass metal is housed is incubated to 3h at 480 ℃, then is incubated 4h after 4h is at the uniform velocity warmed up to 800 ℃, then at the uniform velocity annealing make jade shape devitrified glass.
The volume density of the jade shape devitrified glass that the present embodiment makes is 2.9g/cm
3, folding strength is 75MPa, and ultimate compression strength is 800MPa, and Mohs' hardness is 7.3, and impelling strength is 5.6kj/cm
3, visible light transmissivity is 40%, has natural jade texture, presents translucent beautiful matter shape, has moist degree and the wax sense of natural jade.
Embodiment 2
Select 55 parts of quartz sands, 20 parts of calcites, 8 parts of aluminum oxide, 15 sodium carbonate, 15 parts of salt of wormwood, 10 parts of Sodium Silicofluorides are raw material, after mixing, obtain basestocks; Basestocks is melted to 20h at 1420 ℃, after clarification, obtain glass metal; Pour glass metal into high temperature steel mould molding; The mould that glass metal is housed is incubated to 3h at 520 ℃, then is incubated 6h after 6h is at the uniform velocity warmed up to 820 ℃, then at the uniform velocity annealing make jade shape devitrified glass.
The volume density of the jade shape devitrified glass that the present embodiment makes is 2.6g/cm
3, folding strength is 68MPa, and ultimate compression strength is 650MPa, and Mohs' hardness is 6.7, and impelling strength is 5.4kj/cm
3, visible light transmissivity is 35%, has natural jade texture, presents translucent beautiful matter shape, has moist degree and the wax sense of natural jade.
Embodiment 3
Selecting 55 parts of quartz sands, 18 parts of calcites, 15 parts of sodium carbonate, 20 parts of potassium felspar sands, 6 parts of Sodium Silicofluorides is raw material, after mixing, obtains basestocks; Basestocks is melted to 18h at 1460 ℃, after clarification, obtain glass metal; Pour glass metal into cast iron die moulding; The mould that glass metal is housed is incubated to 6h at 540 ℃, then is incubated 8h after 8h is at the uniform velocity warmed up to 820 ℃, then at the uniform velocity annealing make jade shape devitrified glass.
The volume density of the jade shape devitrified glass that the present embodiment makes is 2.7g/cm
3, folding strength is 70MPa, and ultimate compression strength is 680MPa, and Mohs' hardness is 6.6, and impelling strength is 5.5kj/cm
3, visible light transmissivity is 40%, has natural jade texture, presents translucent beautiful matter shape, has moist degree and the wax sense of natural jade.
Embodiment 4
Selecting 50 parts of quartz sands, 15 parts of calcites, 10 parts of salt of wormwood, 18 parts of albites, 5 parts of fluorites, 4 parts of Sodium Silicofluorides is raw material, after mixing, obtains basestocks; Basestocks is melted to 16h at 1480 ℃, after clarification, obtain glass metal; Pour glass metal into cast iron die moulding; The mould that glass metal is housed is incubated to 8h at 580 ℃, then is incubated 8h after 10h is at the uniform velocity warmed up to 840 ℃, then at the uniform velocity annealing make jade shape devitrified glass.
The volume density of the jade shape devitrified glass that the present embodiment makes is 2.5g/cm
3, folding strength is 68MPa, and ultimate compression strength is 650MPa, and Mohs' hardness is 6.5, and impelling strength is 5.4kj/cm
3, visible light transmissivity is 30%, has natural jade texture, presents translucent beautiful matter shape, has moist degree and the wax sense of natural jade.
Embodiment 5
Selecting 45 parts of quartz sands, 18 parts of calcites, 10 parts of potassium potassium felspar sands, 15 parts of albites, 8 parts of fluorites, 4 parts of Sodium Silicofluorides is raw material, after mixing, obtains basestocks; Basestocks is melted to 16h at 1500 ℃, after clarification, obtain glass metal; Pour glass metal into cast iron die moulding; The mould that glass metal is housed is incubated to 10h at 600 ℃, then is incubated 10h after 10h is at the uniform velocity warmed up to 860 ℃, then at the uniform velocity annealing make jade shape devitrified glass.
The volume density of the jade shape devitrified glass that the present embodiment makes is 2.5g/cm
3, folding strength is 65MPa, and ultimate compression strength is 650MPa, and Mohs' hardness is 6.5, and impelling strength is 5.4kj/cm
3, visible light transmissivity is 30%, has natural jade texture, presents translucent beautiful matter shape, has 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 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 (4)
1. a preparation method for jade shape devitrified glass, is characterized in that, comprises the steps:
1) after being weighed, raw material mix to obtain basestocks;
2) basestocks obtaining in step 1) is melted to 16h～24h at 1400 ℃～1500 ℃, after clarification, obtain glass metal;
3) by step 2) in glass metal pour die for molding into;
4) mould that glass metal is housed in step 3) 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 make jade shape devitrified glass.
2. the preparation method of jade shape devitrified glass according to claim 1, it is characterized in that, described jade shape devitrified glass comprises following composition by weight percentage: silicon-dioxide 55%～65%, sodium oxide 8%～15%, potassium oxide 5%～10%, calcium oxide 15%～20%, fluorine 2%～5%, surplus is aluminum oxide.
3. the preparation method of jade shape devitrified glass according to claim 2, it is characterized in that, in described step 1), select one or more in quartz sand, calcite, albite, potassium felspar sand, fluorite, sodium carbonate, salt of wormwood, aluminum oxide, Sodium Silicofluoride to provide the one-tenth of jade shape devitrified glass to be grouped into as raw material.
4. the preparation method of jade shape devitrified glass according to claim 1, is characterized in that, the mould in described step 3) is cast iron or high temperature steel material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310655601.1A CN103663968A (en) | 2013-12-06 | 2013-12-06 | Preparation method for jade-like microcrystalline glass |
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| CN201310655601.1A CN103663968A (en) | 2013-12-06 | 2013-12-06 | Preparation method for jade-like microcrystalline glass |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944781A (en) * | 2015-05-14 | 2015-09-30 | 南通大明玉新材料科技有限公司 | Method for preparing microcrystalline material with waste residues of quartz sand |
| CN107216039A (en) * | 2017-06-30 | 2017-09-29 | 合肥利裕泰玻璃制品有限公司 | A kind of high rigidity devitrified glass and preparation method thereof |
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| US4386162A (en) * | 1981-10-05 | 1983-05-31 | Corning Glass Works | Alkali metal, calcium fluorosilicate glass-ceramic articles |
| US5434111A (en) * | 1992-04-10 | 1995-07-18 | Schott Glaswerke | Lead- and barium-free crystal glass having high optical transmission |
| CN1160687A (en) * | 1996-03-30 | 1997-10-01 | 大连理工大学 | Fast-microcrystallized devitrified agrellite glass and its production process |
| CN101698568A (en) * | 2009-11-11 | 2010-04-28 | 清华大学 | Method for preparing jade type microcrystalline glass with high-temperature furnace slag |
| 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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2013
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Patent Citations (5)
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| US4386162A (en) * | 1981-10-05 | 1983-05-31 | Corning Glass Works | Alkali metal, calcium fluorosilicate glass-ceramic articles |
| US5434111A (en) * | 1992-04-10 | 1995-07-18 | Schott Glaswerke | Lead- and barium-free crystal glass having high optical transmission |
| CN1160687A (en) * | 1996-03-30 | 1997-10-01 | 大连理工大学 | Fast-microcrystallized devitrified agrellite glass and its production process |
| CN101698568A (en) * | 2009-11-11 | 2010-04-28 | 清华大学 | Method for preparing jade type microcrystalline glass with high-temperature furnace slag |
| 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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| 化工百科全书编辑委员会编: "《化工百科全书 第11卷 氯代烃-模具》", 31 August 1996, 北京：化学工业出版社 * |
| 周俊等著: "《裂纹玻璃晶化法制备建筑装饰用微晶玻璃》", 1 July 2009, 中国地质大学出版社 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944781A (en) * | 2015-05-14 | 2015-09-30 | 南通大明玉新材料科技有限公司 | Method for preparing microcrystalline material with waste residues of quartz sand |
| CN107216039A (en) * | 2017-06-30 | 2017-09-29 | 合肥利裕泰玻璃制品有限公司 | A kind of high rigidity devitrified glass and preparation method thereof |
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Application publication date: 20140326 |