CN100516001C - Resintered fused silica brick and method of producing the same - Google Patents
Resintered fused silica brick and method of producing the same Download PDFInfo
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- CN100516001C CN100516001C CNB2007101634818A CN200710163481A CN100516001C CN 100516001 C CN100516001 C CN 100516001C CN B2007101634818 A CNB2007101634818 A CN B2007101634818A CN 200710163481 A CN200710163481 A CN 200710163481A CN 100516001 C CN100516001 C CN 100516001C
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 239000011449 brick Substances 0.000 title claims abstract description 53
- 239000005350 fused silica glass Substances 0.000 title claims description 56
- 238000000034 method Methods 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 31
- 239000000843 powder Substances 0.000 claims abstract description 18
- 238000005245 sintering Methods 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims description 37
- 239000002994 raw material Substances 0.000 claims description 30
- 239000011230 binding agent Substances 0.000 claims description 21
- 239000000377 silicon dioxide Substances 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 14
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052681 coesite Inorganic materials 0.000 claims description 11
- 229910052906 cristobalite Inorganic materials 0.000 claims description 11
- 239000004615 ingredient Substances 0.000 claims description 11
- 229910052682 stishovite Inorganic materials 0.000 claims description 11
- 229910052905 tridymite Inorganic materials 0.000 claims description 11
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical group O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 8
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 7
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 7
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 7
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 4
- 238000000748 compression moulding Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000033558 biomineral tissue development Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 239000011863 silicon-based powder Substances 0.000 claims 1
- 239000010453 quartz Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 239000000156 glass melt Substances 0.000 abstract 3
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 42
- 238000002844 melting Methods 0.000 description 22
- 230000008018 melting Effects 0.000 description 22
- 230000008859 change Effects 0.000 description 20
- 239000011819 refractory material Substances 0.000 description 15
- 239000013078 crystal Substances 0.000 description 14
- 230000018109 developmental process Effects 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000035939 shock Effects 0.000 description 6
- 239000002241 glass-ceramic Substances 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910021487 silica fume Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000006148 magnetic separator Substances 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a re-sintering meltdown quartz brick and the manufacturing method thereof, and solves the problem that the fire resisting material of the prior microlite glass melt kiln flame space position deforms and cracks due to the expansion and the shrinking under the temperature changing condition so as to damage the glass melt kiln. The re-sintering meltdown quartz brick of the invention comprises the components according to the following weight parts: meltdown quartz of 50 to 60 parts with granularity of 3 to 1 mm, meltdown quartz of 10 to 20 parts with granularity of 1 to 0 mm, mineralized powder of 1 to 2 parts and caking agent of 4 to 7 parts. The invention is suitable for the fire resisting material of the microlite glass melt kiln flame space position.
Description
Technical Field
The invention relates to a refractory material for a microcrystalline glass melting furnace, in particular to a re-sintered fused quartz brick and a manufacturing method thereof.
Background
The main manufacturing equipment of the microcrystalline glass is a glass melting furnace, and the microcrystalline glass, particularly transparent microcrystalline glass, has very good heat resistance and high strength, so that the microcrystalline glass not only requires very high melting temperature (1600 ℃) in the production process, but also the melting temperature is frequently changed within the range of 200-1600 ℃, and therefore, the requirement on the performance of a refractory material in the flame space of the glass melting furnace is very high.
At present, only one high-quality silica brick is selected for producing refractory materials in the flame space of a glass melting furnace by the glass-ceramic production enterprises in China. Silica brick as refractory material affected by temperature change during the production of microcrystal glass, SiO2The crystal form can change, so that the expansion coefficient of the silica brick is large, the volume change is correspondingly increased, the silica brick can be cracked due to repeated expansion and contraction of the volume in a short time, the microcrystalline glass melting furnace is damaged, the production is stopped, the normal operation of the production is influenced, and the quality of the microcrystalline glass is seriously influenced because the silica brick falls into a melting tank after being peeled off, particularly the microcrystalline glass for solar power generation. Therefore, the refractory material of the glass melting furnace becomes a key factor which seriously hinders the development of the microcrystalline glass industry.
Disclosure of Invention
The invention aims to solve the technical problem that the refractory material at the flame space part of the existing microcrystalline glass melting furnace deforms and cracks due to repeated expansion and contraction under the temperature change to damage the glass melting furnace, and provides a re-sintered fused quartz brick with thermal stability and durability and a manufacturing method thereof.
In order to solve the technical problem, the invention adopts the following technical scheme:
in one aspect, the invention provides a re-sintered fused silica brick, which comprises the following components in parts by weight:
fused silica: 50-60 parts of 3-1mm particle size; 10-20 parts of a particle size of 1-0 mm; 30-40 parts of 325-mesh particle size;
mineralization powder: 1-2 parts; adhesive: 4-7 parts.
Preferably, the mineralizer is SiO2Not less than 92% of microsilica.
Preferably, the binder is a silica sol.
Preferably, the binder comprises the low temperature binder carboxymethyl cellulose: 1-2 parts of high-temperature binder aluminum dihydrogen phosphate: 3-5 parts.
The re-sintered fused quartz brick is obtained by processing fused quartz which is obtained by high-temperature smelting of quartz sand and SiO of the fused quartz2The crystal form is not changed along with the temperature change any more, so the SiO of the fused quartz brick is sintered again2The crystal form does not change along with the temperature change; therefore, the re-sintered fused silica brick of the present invention is used as a refractory material for a flame space portion of a glass melting furnace, and SiO is used in a process of producing a glass ceramics2The crystal form is not changed due to temperature change, and the volume is not changed due to temperature change, so that the crystal form has good thermal stability and thermal shock resistance; meanwhile, the invention re-sinters the fused silica brick because of SiO2The content is extremely high, and the quality of the glass ceramics is not influenced even if the glass ceramics is partially peeled off, so that the normal operation of a glass kiln is ensured, and the key factors restricting the development of the industry are solved.
In another aspect, the present invention provides a method of manufacturing a re-sintered fused silica brick, comprising the steps of:
a. crushing raw material fused quartz into particles with the particle size less than or equal to 3 mm;
b. grinding, further crushing part of the raw materials into fine powder with the particle size of 325 meshes;
d. weighing fused quartz, mineralized powder and binder in each particle size range in the ingredients according to the proportion, and adding water for mixing;
e. ageing the raw materials, namely putting the prepared and mixed raw materials into a sealed container for sealing;
f. molding, namely injecting the trapped raw materials into a mold for compression molding;
g. drying, namely putting the formed green brick into a drying chamber for drying and dehydrating;
h. sintering, and sintering the dried green bricks in a high-temperature kiln to form the bricks.
Preferably, the raw material is SiO of fused silica2≥99.5％。
Further, in the step a, the raw materials are crushed into the following two particle size ranges with the particle size less than or equal to 3 mm: particle size 3-1mm and particle size 1-0 mm.
Further, after the step b and before the step d, the method also comprises the following steps,
c. iron removal removes the iron oxide present during said steps a and b.
The manufacturing method of the invention uses fused quartz as raw material, after crushing, grinding processing, reasonably grading the particles, adding adhesive, mineralizer and water to mix, putting in a sealed container to seal and store, making the raw material fully chemically react with the adhesive and mineralizer to increase the density and cohesion of the raw material and improve the strength of the product, then, the manufacturing is completed through the procedures of die forming, drying and sintering. The re-sintered fused quartz brick produced by the method of the invention is used as a refractory material at the flame space part of a microcrystalline glass melting furnace, and SiO is used in the production process of microcrystalline glass2The crystal form is not changed due to temperature change, and the volume is not changed due to temperature change, so that the crystal form has good thermal stability and thermal shock resistance; meanwhile, the invention re-sinters the fused silica brick because of SiO2The content is extremely high, and even if the glass is partially peeled, the quality of the microcrystalline glass is not influenced; thereby ensuring the normal production of the microcrystalline glass kiln and solving the problemThe key factors restricting the development of the industry.
Drawings
FIG. 1 is a process flow diagram of the method of manufacturing a re-sintered fused silica brick of the present invention.
Detailed Description
The core of the invention is to provide a re-sintered fused quartz brick and a manufacturing method thereof, which are used for solving the problems that the refractory material at the flame space part of the existing microcrystalline glass melting furnace deforms and cracks due to expansion and contraction under the condition of temperature change, and the glass melting furnace is damaged.
In order to make the technical solutions of the present invention better understood and make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in further detail below with reference to the accompanying drawings and examples.
The invention relates to a re-sintered fused quartz brick, which comprises the following ingredients in parts by weight:
fused silica: 50-60 parts of 3-1mm particle size; 10-20 parts of a particle size of 1-0 mm; 30-40 parts of 325-mesh particle size;
mineralization powder: 1-2 parts; adhesive: 4-7 parts.
The physical and chemical indexes of the re-sintered fused quartz brick are as follows:
the raw material fused quartz adopted by the invention has the following characteristics:
1. small thermal expansion coefficient, better volume stability and chemical stability, SiO2The crystal form of the quartz crystal does not change along with the temperature change, so that the fused quartz is not easy to deform under the high-temperature condition and the temperature change.
2. The viscosity is very high under the high temperature condition, and is 108 Pa.s at 1530 ℃; at high temperature, the corrosion and scouring resistance is good, the plasticity is increased along with the rise of the temperature, the brittleness is weakened, and the breaking strength is greatly increased along with the rise of the temperature in the use process.
Therefore, the fused quartz has the advantages of difficult deformation, good viscosity, erosion resistance and breaking strength under the high-temperature condition, so that the brick made of the fused quartz has good thermal stability and persistence under the high-temperature condition, is used as the refractory material of the glass-ceramic melting furnace, overcomes the problem of cracking of the refractory material of the existing glass melting furnace, and solves the bottleneck problem of restricting the development of the industry.
The re-sintered fused quartz brick is produced with fused quartz as material, and has the features of high temperature resistance, high erosion resistance, small heat expansion coefficient, low heat conductivity, high heat shock resistance, etc. and SiO2The crystal form does not change along with the temperature change any more, so the invention is used as the refractory material of the flame space part of the microcrystalline glass melting furnace, and SiO is used in the production process of the microcrystalline glass2The crystal form is not changed any more, and the volume is not changed due to the temperature change, so that the crystal has good thermal stability and thermal shock resistance; meanwhile, the invention re-sinters the fused silica brick because of SiO2The content is extremely high, and even if the glass is partially peeled, the quality of the microcrystalline glass is not influenced; thereby ensuring the normal production of the microcrystalline glass kiln and solving the key factors restricting the development of the industry.
The re-sintered fused quartz brick can be applied to the flame space of a glass melting furnace which is a main device in the microcrystalline glass industry, and is used for building parts such as a breast wall, a crown, a top cover and the like.
As shown in FIG. 1, the method for manufacturing a re-sintered fused silica brick of the present invention comprises the steps of:
a. crushing SiO by using a crusher2More than or equal to 99.5 percent of fused quartz raw material is crushed into the following two particle size ranges: the granularity is 3-1mm and 1-0 mm;
the crusher can be a jaw crusher or a double-roller crusher;
b. grinding, namely further grinding the raw materials with the particle size of 1-0mm into fine powder with the particle size of 325 meshes by using a ball mill;
c. removing iron by using a magnetic separator to remove iron oxide generated in the processes of the step a and the step b, wherein if the content of the iron oxide is high, the use temperature of the re-sintered fused quartz brick is reduced and the glass liquid is polluted, and the quality of the re-sintered fused quartz brick is ensured by removing the iron oxide;
d. the ingredients are mixed according to the following components and particle grades in parts by weight,
fused silica: 50-60 parts of granularity 3-1mm, 10-20 parts of granularity 1-0mm and 30-40 parts of granularity 325 meshes;
1-2 parts of mineralized powder; 4-7 parts of a binder;
e. ageing the raw materials, namely putting the prepared and mixed raw materials into a sealed container for sealing;
f. molding, namely injecting the trapped raw materials into a mold for compression molding;
g. drying, namely putting the formed green brick into a drying chamber for drying and dehydrating;
h. sintering, namely placing the dried green bricks in a high-temperature kiln to be sintered into bricks;
and then, packaging the finished bricks according to requirements and leaving the factory.
The mineralizer is silica fume with SiO2 content not less than 92%, and the silica fume has the functions of raising strength, raising bending strength and compression strength, raising compactness and cohesion and easy sintering.
The binder can be silica sol which can simultaneously play a role in enhancing the low, medium and high temperature strength of the re-sintered fused quartz brick.
Since the silica sol has the following characteristics: 1. the viscosity is low, and water can permeate places, so that the dispersibility and the permeability are very good when the water-soluble polyurethane is mixed with other substances; 2. the colloidal particles are tiny and only have the size of 10-20nm, so the colloidal particles have quite large specific surface area, and the particles are colorless and transparent and do not influence the covered object; 3. when the water of the silica sol is evaporated, the colloidal particles are firmly attached to the surface of an object, and silica bonding is formed among the particles, so that the silica sol has a good bonding effect; 4. resisting the high temperature of 1500-; therefore, silica sol is used as a binder in the manufacture of the re-sintered fused silica brick of the present invention, and can play a role in increasing the strength.
The binder can also be a combination of a low-temperature binder and a high-temperature binder to respectively increase the low-temperature strength and the high-temperature strength of the brick, wherein the low-temperature binder is carboxymethyl cellulose, and the high-temperature binder is aluminum dihydrogen phosphate.
The binder adopts the above mode, and in the ingredients of the method of the invention, the low-temperature binder carboxymethyl cellulose is: 1-2 parts of high-temperature binder aluminum dihydrogen phosphate: 3-5 parts.
The manufacturing method of the invention uses fused quartz as raw material, after crushing, grinding processing, reasonably grading the particles, adding adhesive, mineralizer and water to mix, putting in a sealed container to seal and store, making the raw material fully chemically react with the adhesive and mineralizer to increase the density and cohesion of the raw material and improve the strength of the product, then, the manufacturing is completed through the procedures of die forming, drying and sintering. The re-sintered fused silica brick produced by the method of the invention is used as a refractory material of a flame space part of a glass melting furnace in the production process of microcrystalline glassIn, SiO2The crystal form is not changed due to temperature change any more, and the volume is not changed due to temperature change, so that the crystal form has good thermal stability and thermal shock resistance; meanwhile, the invention re-sinters the fused silica brick because of SiO2The content is extremely high, and even if the glass is partially peeled, the quality of the microcrystalline glass is not influenced; thereby ensuring the normal production of the microcrystalline glass kiln and solving the key factors restricting the development of the industry.
Example 1
The invention relates to a manufacturing method of a re-sintered fused quartz brick, which comprises the following steps:
a. crushing SiO by using a crusher2More than or equal to 99.5 percent of fused quartz raw material is crushed into the following two particle size ranges: the granularity is 3-1mm and 1-0 mm;
b. grinding, namely further grinding the raw materials with the particle size of 1-0mm into fine powder with the particle size of 325 meshes by using a ball mill;
c. removing iron by using a magnetic separator to remove iron oxide generated in the processes of the step a and the step b;
d. the ingredients are mixed according to the following components and particle grades in parts by weight,
fused silica: 50 parts of granularity 3-1mm, 10 parts of granularity 1-0mm and 40 parts of granularity 325 meshes;
1.2 parts of micro mineral powder; 6.5 parts of silica sol;
e. ageing the raw materials, namely putting the prepared and mixed raw materials into a sealed container for sealing;
f. molding, namely injecting the trapped raw materials into a mold for compression molding;
g. drying, namely putting the formed green brick into a drying chamber for drying and dehydrating;
h. sintering, namely placing the dried green bricks in a high-temperature kiln to be sintered into bricks;
and then, packaging the finished bricks according to requirements and leaving the factory.
Example 2
The same steps as in example 1 are used in this example and the following examples, and for the sake of brevity, the following differences are described below:
the method comprises the following ingredients: fused silica: 55 parts of granularity range 3-1mm, 10 parts of granularity range 1-0mm and 35 parts of granularity 325 meshes;
1.5 parts of micro mineral powder; 6 parts of silica sol.
Example 3
The method comprises the following ingredients: fused silica: 60 parts of granularity 3-1mm, 15 parts of granularity 1-0mm and 35 parts of granularity 325 meshes;
1.7 parts of micro mineral powder; 5.5 parts of silica sol.
Example 4
Fused silica: 50 parts of granularity 3-1mm, 10 parts of granularity 1-0mm and 40 parts of granularity 325 meshes;
1.2 parts of micro mineral powder; 1 part of carboxymethyl cellulose; 4.5 parts of aluminum dihydrogen phosphate.
Example 5
The method comprises the following ingredients: fused silica: 55 parts of granularity range 3-1mm, 10 parts of granularity range 1-0mm and 35 parts of granularity 325 meshes;
1.5 parts of micro mineral powder; 1.5 parts of carboxymethyl cellulose; 4 parts of aluminum dihydrogen phosphate.
Example 6
The method comprises the following ingredients: fused silica: 60 parts of granularity 3-1mm, 15 parts of granularity 1-0mm and 35 parts of granularity 325 meshes;
1.7 parts of micro mineral powder; 2 parts of carboxymethyl cellulose; 3.4 parts of aluminum dihydrogen phosphate.
The application example of the invention is as follows:
in a microcrystalline glass production enterprise in Zhejiang, a production line for producing 10 tons of microcrystalline glass per day has the defects that the melting temperature of the microcrystalline glass is very high and reaches 1600 ℃, a large amount of high-temperature harmful gas is rapidly generated in the melting process, the gas quickly erodes and erodes refractory materials in a flame space, glass liquid is polluted, and the production is forced to stop in half a year when a factory is built.
The above accidents are analyzed, except for the factors of a power distribution system and a control system, the main reason is that the thermal shock resistance of the refractory material at the flame space part of the melting furnace is poor, the production is recovered to be normal after the re-sintered fused quartz brick is replaced by the method disclosed by the invention after the harmful gas is not washed, and the normal production is still performed after the operation is performed for more than two years.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (4)
1. A re-sintered fused silica brick is characterized in that the ingredients comprise the following components in parts by weight: 50-60 parts of 3-1mm particle size;
10-20 parts of a particle size of 1-0 mm;
30-40 parts of 325-mesh particle size;
mineralization powder: 1-2 parts; adhesive: 4-7 parts; wherein,
the mineralized powder is SiO2Not less than 92% of micro silicon powder;
the binder is a silica sol, or the binder comprises a low temperature binder, carboxymethyl cellulose: 1-2 parts of high-temperature binder aluminum dihydrogen phosphate: 3-5 parts.
2. A method of making the re-sintered fused silica brick of claim 1, comprising the steps of:
a. crushing raw material fused quartz into particles with the particle size of 3-1mm and the particle size of 1-0 mm;
b. grinding, further crushing part of the raw materials into fine powder with the particle size of 325 meshes;
d. weighing fused quartz, mineralized powder and binder in each particle size range in the ingredients according to the proportion, and adding water for mixing;
e. ageing the raw materials, namely putting the prepared and mixed raw materials into a sealed container for sealing;
f. molding, namely injecting the trapped raw materials into a mold for compression molding;
g. drying, namely putting the formed green brick into a drying chamber for drying and dehydrating;
h. sintering, and sintering the dried green bricks in a high-temperature kiln to form the bricks.
3. The method of claim 2, wherein the raw material is SiO of fused silica2≥99.5％。
4. The method of claim 2 or 3, further comprising, after step b and before step d, the step of,
c. iron removal removes the iron oxide present during said steps a and b.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007101634818A CN100516001C (en) | 2007-10-26 | 2007-10-26 | Resintered fused silica brick and method of producing the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101634818A CN100516001C (en) | 2007-10-26 | 2007-10-26 | Resintered fused silica brick and method of producing the same |
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| CN100516001C true CN100516001C (en) | 2009-07-22 |
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| CN113416081A (en) * | 2021-06-30 | 2021-09-21 | 南京钢铁股份有限公司 | Preparation method of fired ultrathin siliceous plate for pouring large high-quality steel ingot |
| CN114920541B (en) * | 2022-05-28 | 2023-03-17 | 河北浩锐陶瓷制品有限公司 | High-wear-resistance ceramic material for ceramic tiles, preparation method of high-wear-resistance ceramic material and high-wear-resistance ceramic tiles |
| CN115340394A (en) * | 2022-08-10 | 2022-11-15 | 武汉科技大学 | Boron phosphate reinforced quartz material and preparation method thereof |
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Assignee: Changshu Sinofusion Solar Performance Material Co., Ltd. Assignor: Sun Xingzhe Contract record no.: 2010320000940 Denomination of invention: Resintered fused silica brick and method of producing the same Granted publication date: 20090722 License type: Exclusive License Open date: 20080507 Record date: 20100716 |
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