CN103420563A - Preparation method of photochromic potash-lime plate glass - Google Patents
Preparation method of photochromic potash-lime plate glass Download PDFInfo
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- CN103420563A CN103420563A CN2012101662626A CN201210166262A CN103420563A CN 103420563 A CN103420563 A CN 103420563A CN 2012101662626 A CN2012101662626 A CN 2012101662626A CN 201210166262 A CN201210166262 A CN 201210166262A CN 103420563 A CN103420563 A CN 103420563A
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Abstract
The invention discloses a preparation method of photochromic potash-lime plate glass, and belongs to the field of glass production. An electric melting furnace is used as equipment; high purity quartz sand, potash, limestone, feldspar, dolomite, rubidium oxide and a clarificant are taken as raw materials. The preparation method of the photochromic potash-lime plate glass comprises steps such as raw material preparing, mixing, melting, moulding, annealing and cooling. Technologies are simple; production cost is low; the raw materials are easily available; the technologies are mature; no pollution is caused; and the preparation method is suitable for industrialized production. The photochromic potash-lime plate glass can be used for preparation of doors and windows of chemical laboratories, and doors and windows of high-grade buildings in tropical areas.
Description
Technical field
The invention belongs to glass manufacturing area, relate in particular to a kind of production method of variable color potassium calcium sheet glass.
Background technology
Silicate glass refers to the glass that basal component is silicon-dioxide, it is wide in variety, purposes is wide, press the difference of silicon-dioxide and other constituent content in glass, be divided into again: silica glass, vagcor, soda-lime glass, potash-lime glass etc., potash-lime glass claims again potassic glass, is to change the sodium carbonate in the raw material of manufacture soda glass into salt of wormwood, and the glass made is potassic glass.Potash-lime glass is that to take quartz sand, salt of wormwood, Wingdale, feldspar etc. be main raw material, the silicon-dioxide that raw material contains 60%-70%, the potassium oxide of 10%-18%, the calcium oxide of 8%-11%, through high-temperature fusion, moulding, and through the cooling and amorphous noncrystalline solid material that makes fast, it is the Solid solution of potassium silicate, Calucium Silicate powder and silicon-dioxide, its chemical composition is very complicated, except containing above-mentioned main component, also contains a small amount of Fe, Al2O3, MgO etc.With soda glass, compare; the thermal expansivity of potassic glass is less, more infusibilized, feels bad the erosion of pharmaceutical chemicals; can be used for making the sheet glass of general chemical apparatus or the use of chemical laboratory door and window; chemical laboratory often needs lucifuge, adds a certain amount of rare earth oxide in sheet glass, can produce photo chromic glass; when photo chromic glass is met the strong sunlight irradiation; darken, can make the indoor pharmaceutical chemicals of chemical experiment avoid strong illumination, thereby medicine is played a protective role.The present invention be take the electric smelting continuous induction melting furnace as equipment, take glass sand, salt of wormwood, Wingdale, feldspar, rhombspar, rubidium oxide, finings is raw material, obtain variable color potassium calcium sheet glass by batching, blending, melting, moulding, annealing, the operation such as cooling, the method has that technique is simple, production cost is low, raw material sources are convenient, technical maturity, pollution-free, be applicable to the series of advantages such as suitability for industrialized production, the glass of producing both can be used in the door and window of chemical laboratory, also can be used in the door and window of torrid areas top-grade building.
Summary of the invention
The problem that the present invention mainly solves is to provide a kind of method of suitability for industrialized production variable color potassium calcium sheet glass, the method be take the electric smelting continuous induction melting furnace as equipment, take glass sand, salt of wormwood, Wingdale, feldspar, rhombspar, rubidium oxide, finings is raw material, carry out production variable color potassium calcium sheet glass by batching, blending, melting, moulding, annealing, the operation such as cooling, the weight percent of the raw material that the present invention uses is: glass sand 66%-68%, salt of wormwood 15%-17%, Wingdale 11%, feldspar 2%, rhombspar 2.5%, rubidium oxide 1%, finings 0.5%.
The present invention can be achieved through the following technical solutions:
A kind of method of suitability for industrialized production variable color potassium calcium sheet glass is characterized in that following steps form:
(1) glass sand of formula ratio, salt of wormwood, Wingdale, feldspar, rhombspar, rubidium oxide, finings are mixed to rear even blend, compound is sent into to the electric smelting continuous induction melting furnace, temperature in the electric smelting continuous induction melting furnace is elevated between 1600 ℃-1620 ℃, keep this temperature 20-22 hour, make compound reach molten state, obtain variable color potash-lime glass molten mass.
(2) make tin tank heating tin in molten tin bath in molten state, the tin degree of depth of molten state should be more than 30 centimetres, quantitative variable color potash-lime glass molten mass is flowed into to molten tin bath certainly, variable color potash-lime glass molten mass floats over the surface of tin liquor because proportion is little, under the acting in conjunction of gravity and surface tension of liquid, form tabular variable color potash-lime glass molten mass, now slowly tabular variable color potash-lime glass molten mass is cooled to below 900 ℃ and makes it to become solid, then solid glass is pulled out to molten tin bath, send into annealing furnace, progressively cooling in annealing furnace, when temperature is down to 150 ℃ of left and right, annealing is complete, finished product is sent in air, obtain finished product naturally cool to normal temperature in air after.
Temperature of fusion in electric smelting continuous induction melting furnace described in above-mentioned steps (1) is 1610 ℃, and fusing time is 21 hours.
The present invention compared with prior art has the following advantages:
(1) technique is simple, production cost is low, and raw material sources are convenient, technical maturity, pollution-free.
(2) be suitable for industrialized mass production, quality product is high.
Embodiment
Embodiment 1
The glass sand that total amount is 66%, 17% salt of wormwood, 11% Wingdale, 2% feldspar, 2.5% rhombspar, 1% rubidium oxide, 0.5% the rear even blend of finings mixing will be accounted for, compound is sent into to the electric smelting continuous induction melting furnace, temperature in the electric smelting continuous induction melting furnace is elevated between 1600 ℃-1620 ℃, keep this temperature 20-22 hour, make compound reach molten state, obtain variable color potash-lime glass molten mass, make tin tank heating tin in molten tin bath in molten state, the tin degree of depth of molten state should be more than 30 centimetres, quantitative variable color potash-lime glass molten mass is flowed into to molten tin bath certainly, variable color potash-lime glass molten mass floats over the surface of tin liquor because proportion is little, under the acting in conjunction of gravity and surface tension of liquid, form tabular variable color potash-lime glass molten mass, now slowly tabular variable color potash-lime glass molten mass is cooled to below 900 ℃ and makes it to become solid, then solid glass is pulled out to molten tin bath, send into annealing furnace, progressively cooling in annealing furnace, when temperature is down to 150 ℃ of left and right, annealing is complete, finished product is sent in air, obtain finished product naturally cool to normal temperature in air after.
Embodiment 2
The glass sand that total amount is 67%, 16% salt of wormwood, 11% Wingdale, 2% feldspar, 2.5% rhombspar, 1% rubidium oxide, 0.5% the rear even blend of finings mixing will be accounted for, compound is sent into to the electric smelting continuous induction melting furnace, temperature in the electric smelting continuous induction melting furnace is elevated between 1600 ℃-1620 ℃, keep this temperature 20-22 hour, make compound reach molten state, obtain variable color potash-lime glass molten mass, make tin tank heating tin in molten tin bath in molten state, the tin degree of depth of molten state should be more than 30 centimetres, quantitative variable color potash-lime glass molten mass is flowed into to molten tin bath certainly, variable color potash-lime glass molten mass floats over the surface of tin liquor because proportion is little, under the acting in conjunction of gravity and surface tension of liquid, form tabular variable color potash-lime glass molten mass, now slowly tabular variable color potash-lime glass molten mass is cooled to below 900 ℃ and makes it to become solid, then solid glass is pulled out to molten tin bath, send into annealing furnace, progressively cooling in annealing furnace, when temperature is down to 150 ℃ of left and right, annealing is complete, finished product is sent in air, obtain finished product naturally cool to normal temperature in air after.
Embodiment 3
The glass sand that total amount is 68%, 15% salt of wormwood, 11% Wingdale, 2% feldspar, 2.5% rhombspar, 1% rubidium oxide, 0.5% the rear even blend of finings mixing will be accounted for, compound is sent into to the electric smelting continuous induction melting furnace, temperature in the electric smelting continuous induction melting furnace is elevated between 1600 ℃-1620 ℃, keep this temperature 20-22 hour, make compound reach molten state, obtain variable color potash-lime glass molten mass, make tin tank heating tin in molten tin bath in molten state, the tin degree of depth of molten state should be more than 30 centimetres, quantitative variable color potash-lime glass molten mass is flowed into to molten tin bath certainly, variable color potash-lime glass molten mass floats over the surface of tin liquor because proportion is little, under the acting in conjunction of gravity and surface tension of liquid, form tabular variable color potash-lime glass molten mass, now slowly tabular variable color potash-lime glass molten mass is cooled to below 900 ℃ and makes it to become solid, then solid glass is pulled out to molten tin bath, send into annealing furnace, progressively cooling in annealing furnace, when temperature is down to 150 ℃ of left and right, annealing is complete, finished product is sent in air, obtain finished product naturally cool to normal temperature in air after.
Claims (2)
1. the production method of a variable color potassium calcium sheet glass, its composition of raw materials counts by weight percentage, and comprising: glass sand 66%-68%, salt of wormwood 15%-17%, Wingdale 11%, feldspar 2%, rhombspar 2.5%, rubidium oxide 1%, finings 0.5%, it is characterized in that: step (1) is mixed rear even blend by the glass sand of formula ratio, salt of wormwood, Wingdale, feldspar, rhombspar, rubidium oxide, finings, compound is sent into to the electric smelting continuous induction melting furnace, temperature in the electric smelting continuous induction melting furnace is elevated between 1600 ℃-1620 ℃, keep this temperature 20-22 hour, make compound reach molten state, obtain variable color potash-lime glass molten mass, step (2) makes tin tank heating tin in molten tin bath in molten state, the tin degree of depth of molten state should be more than 30 centimetres, quantitative variable color potash-lime glass molten mass is flowed into to molten tin bath certainly, variable color potash-lime glass molten mass floats over the surface of tin liquor because proportion is little, under the acting in conjunction of gravity and surface tension of liquid, form tabular variable color potash-lime glass molten mass, now slowly tabular variable color potash-lime glass molten mass is cooled to below 900 ℃ and makes it to become solid, then solid glass is pulled out to molten tin bath, send into annealing furnace, progressively cooling in annealing furnace, when temperature is down to 150 ℃ of left and right, annealing is complete, finished product is sent in air, obtain finished product naturally cool to normal temperature in air after.
2. the production method of a kind of variable color potassium calcium sheet glass according to claim 1, the feature of its step (1) is: the temperature of fusion in described electric smelting continuous induction melting furnace is 1610 ℃, and fusing time is 21 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101662626A CN103420563A (en) | 2012-05-26 | 2012-05-26 | Preparation method of photochromic potash-lime plate glass |
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| CN2012101662626A CN103420563A (en) | 2012-05-26 | 2012-05-26 | Preparation method of photochromic potash-lime plate glass |
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| CN103420563A true CN103420563A (en) | 2013-12-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430954A (en) * | 2016-09-07 | 2017-02-22 | 安徽金生金世电子科技有限公司 | Sound-insulation glass window and preparing method thereof |
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2012
- 2012-05-26 CN CN2012101662626A patent/CN103420563A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430954A (en) * | 2016-09-07 | 2017-02-22 | 安徽金生金世电子科技有限公司 | Sound-insulation glass window and preparing method thereof |
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Application publication date: 20131204 |