CN102765949A - Light-weight cordierite castable and preparation method thereof - Google Patents
Light-weight cordierite castable and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a light-weight cordierite castable and a preparation method thereof. The technical scheme includes that the preparation method includes: using 40-70wt% of porous cordierite ceramic grains, 20-48wt% of cordierite ceramic fine powder, 2-10wt% of calcium aluminate cement, 2-4wt% of talcum fine powder, 2-4wt% of silicon oxide micro powder and 2-4wt% of active alpha alumina micro powder as raw materials, additionally adding water accounting for 8-20wt% of the raw materials and 0.02-1wt% of water reducers, uniformly stirring and molding by casting; and naturally drying molded green bodies for 24 hours and then drying the dried green bodies for 8-48 hours at the temperature of 110 DEG C. The light-weight cordierite castable prepared by the method not only has the advantages of high apparent porosity, small average pore size, high strength, low thermal conductivity, good thermal shock stability and high medium erosion resistance, but also has the advantages of convenience to construct, environmental friendliness, controllability in apparent porosity and pore size and small volume change after firing, and is applicable to backing layers or working layers of high-temperature kilns or containers at the working temperature lower than 1340 DEG C.
Description
Technical field
The invention belongs to the lightening casting material technical field.Be specifically related to a kind of trichroite lightening casting material and preparation method thereof.
Background technology
Trichroite is a kind of silicate minerals, and its theory consists of 2MgO2Al
2O
35SiO
2, heat-shock resistance, low heat conductivity and better chemical with very little thermal expansivity, excellence are stable.Along with improving day by day with the requirement that reduces discharging energy-conservation, environmental protection and the research of lightening casting material efficiently more and more receive publicity.The domestic and international at present research about the trichroite light material mainly concentrates on porous cordierite ceramics material and trichroite light fire brick, and the former is feedstock production cordierite porous material (Wang Qi etc. as utilizing flyash and coal gangue.Prepare the cordierite porous material with flyash and magnesite low temperature.Silicate journal, 2012,40 (5): 745-751), the latter such as a kind of trichroite aglite brick (Xin Guozhi.The application of trichroite aglite brick on kiln car.The Jiangsu pottery, 1995,70 (3): 21-22).The trichroite light material of these technology preparations all belongs to molded article, can not prepare baroque refractory materials, can not cast-in-place shaping.
Mould material is a kind of in the unshape refractory, has easy construction, do not receive the furnace construction shape limits and can be made into advantages such as difform furnace lining easily.In traditional mould material, people are aggregate with the material of densification often.Fine and close mould material thermal conductivity is big, density is big, waste mass energy and resource.Simultaneously, in fine and close mould material use, etching medium at first corrodes matrix.Matrix surrounds aggregate, and when matrix is etched into metamorphic layer, aggregate just peels off out from mould material with matrix.Thereby directly waring oneself in front of a fire and having under the corrosive medium existence condition, the effect of fine and close aggregate is also not obvious.Aspect the lightweight unshape refractory, various lightening casting materials have been studied: like vermiculite, perlite, haydite, fire-resistant light skeletal and fibre castable etc.The thermal conductivity of comparing them with fine and close mould material is less, can be used as lagging material and uses.But their thermal shock resistance is relatively poor, and the ability of anti-flame impingement, anti-erosion medium resistance is relatively poor, can not directly be used in to warm oneself in front of a fire, have corrosive medium, position that temperature fluctuation is bigger.
Summary of the invention
The present invention is intended to overcome the prior art defective; Purpose provides the preparation method of the simple trichroite lightening casting material of a kind of preparation technology; Trichroite lightening casting material with the preparation of this method had both had the apparent porosity height, mean pore size is little, intensity is high, thermal conductivity is low, good thermal shock stability and the strong advantage of anti-erosion medium resistance ability, and it is controlled and burn the little advantage of back volume change to have environmental friendliness, apparent porosity and pore size again.
For realizing above-mentioned purpose; The technical scheme that the present invention adopts is: with the porous cordierite ceramic particle of 40 ~ 70wt%, the cordierite ceramic fine powder of 20 ~ 48wt%, the aluminous cement of 2 ~ 10wt%, the talcum fine powder of 2 ~ 4wt%, the ultrafine silica powder of 2 ~ 4wt% and the active alpha alumina powder of 2 ~ 4wt% is raw material; Add the water of said raw material 8 ~ 20wt% and the water reducer of said raw material 0.02 ~ 1wt%; Stir casting; Base substrate seasoning after the moulding 24 hours, under 110 ℃ of conditions dry 8 ~ 48 hours again.
The preparation method of porous cordierite ceramic particle and cordierite ceramic fine powder is: with the colliery powder of 8 ~ 12wt%, the Al of 33 ~ 37wt% (OH)
3The magnesite breeze of the talcum powder of powder, 8 ~ 12wt%, 13 ~ 17wt% and the ground silica of 28 ~ 32wt% mix, and the water that adds above-mentioned compound 3 ~ 12wt% stirs, compression moulding; With the base substrate after the moulding under 110 ℃ of conditions dry 8 ~ 36 hours, under 1300 ~ 1400 ℃ of conditions, be incubated 1 ~ 6 hour then and burn till again, promptly get porous cordierite ceramic.At last that porous cordierite ceramic is broken, screening; The particle of choosing particle diameter and be 8 ~ 0.1mm is the porous cordierite ceramic particle, and choosing particle diameter is the cordierite ceramic fine powder less than the fine powder of 88 μ m.
The particle diameter of said aluminous cement is less than 88 μ m.
The particle diameter of said talcum fine powder is less than 88 μ m.
The silica content of said ultrafine silica powder is greater than 92wt%, and particle diameter is less than 4 μ m.
The alumina content of said active alpha alumina powder is greater than 97wt%, and particle diameter is less than 4 μ m.
Said water reducer is more than one in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, dispersed aluminum oxide and the poly carboxylic acid series water reducer.
Adopt technique scheme; " a kind of porous cordierite ceramic material and preparation method thereof (CN201110038289.2) " patented technology that the present invention adopts the applicant to apply for prepares porous cordierite ceramic particle and cordierite ceramic fine powder; Be porous aggregate and be that fine and close matrix prepares lightening casting material mainly that with prepared porous cordierite ceramic particle preparation technology is simple with the cordierite ceramic fine powder.Prepared product chemical ingredients mainly is MgO, Al
2O
3And SiO
2, its principal crystalline phase is a trichroite.Existing high intensity of material and heat-insulating property that the present invention is prepared also have good thermal shock resistance and anti-erosion medium resistance ability.
Therefore; Preparation technology of the present invention is simple; It is controlled and burn the little advantage of back volume change that prepared trichroite lightening casting material has easy construction, environmental friendliness, apparent porosity and pore size, also has the apparent porosity height, mean pore size is little, intensity is high, thermal conductivity is low, good thermal shock stability and the strong performance of anti-erosion medium resistance ability.The prepared trichroite lightening casting material of the present invention is applicable to that working temperature is lower than 1340 ℃ the high temperature kiln or the permanent layer and the working lining of container.
Embodiment
Below in conjunction with embodiment the present invention being done further description, is not the restriction to protection domain:
For avoiding repetition, earlier the raw material unification in this embodiment is described below, repeat no more among the embodiment:
The particle diameter of aluminous cement is less than 88 μ m; The particle diameter of talcum fine powder is less than 88 μ m; The silica content of ultrafine silica powder is greater than 92wt%, and particle diameter is less than 4 μ m; The alumina content of active alpha alumina powder is greater than 97wt%, and particle diameter is less than 4 μ m.
The preparation method of porous cordierite ceramic particle and cordierite ceramic fine powder is: with colliery powder, the 33 ~ 37wt%Al (OH) of 8 ~ 12wt%
3Powder, 8 ~ 12wt% talcum powder, 13 ~ 17wt% magnesite breeze and 28 ~ 32wt% ground silica mix, and the water that adds above-mentioned compound 3 ~ 12wt% stirs, compression moulding; With the base substrate after the moulding under 110 ℃ of conditions dry 8 ~ 36 hours, under 1300 ~ 1400 ℃ of conditions, be incubated 1 ~ 6 hour then and burn till again, promptly get porous cordierite ceramic.At last that porous cordierite ceramic is broken, screening; The particle of choosing particle diameter and be 8 ~ 0.1mm is the porous cordierite ceramic particle, and choosing particle diameter is the cordierite ceramic fine powder less than the fine powder of 88 μ m.
Embodiment 1
A kind of trichroite lightening casting material and preparation method thereof: with the porous cordierite ceramic particle of 50 ~ 70wt%, the cordierite ceramic fine powder of 20 ~ 38wt%, the aluminous cement of 2 ~ 6wt%, the talcum fine powder of 2 ~ 4wt%, the ultrafine silica powder of 2 ~ 4wt% and the active alpha alumina powder of 2 ~ 4wt% is raw material; Add the water of said raw material 8 ~ 12wt% and the tripoly phosphate sodium STPP of said raw material 0.02 ~ 0.4wt%; Stir casting; Base substrate seasoning after the moulding 24 hours, under 110 ℃ of conditions dry 8 ~ 18 hours again.
In the present embodiment: porous cordierite ceramic particulate apparent porosity is 35 ~ 40%, and mean pore size is 10 ~ 20 μ m; Porous cordierite ceramic particulate grain composition ratio is: 8 ~ 5mm accounts for raw material 8 ~ 12wt%, and 5 ~ 3mm accounts for raw material 18 ~ 24wt%, and 3 ~ 1mm accounts for raw material 18 ~ 24wt%, and 1 ~ 0.1mm accounts for raw material 6 ~ 10wt%.
Adopt the said technical scheme of present embodiment, obtain apparent porosity and be 35 ~ 42%, volume density is 1.40 ~ 1.60g/cm
3With folding strength be the trichroite lightening casting material of 3 ~ 6MPa; Burn till under 1300 ~ 1410 ℃ of conditions, soaking time is 2 ~ 6 hours, obtains apparent porosity and be 34 ~ 44%, volume density is 1.39 ~ 1.61g/cm
3, mean pore size is that 10 ~ 20 μ m and folding strength are the trichroite lightening casting material of 8 ~ 15MPa.
Embodiment 2
A kind of trichroite lightening casting material and preparation method thereof: with the porous cordierite ceramic particle of 40 ~ 60wt%, the cordierite ceramic fine powder of 25 ~ 43wt%, the aluminous cement of 4 ~ 8wt%, the talcum fine powder of 2 ~ 4wt%, the ultrafine silica powder of 2 ~ 4wt% and the active alpha alumina powder of 2 ~ 4wt% is raw material; Add water and the tripoly phosphate sodium STPP of said raw material 0.1 ~ 0.3wt% and the Sodium hexametaphosphate 99 of 0.1 ~ 0.3wt% of said raw material 12 ~ 16wt%; Stir casting; Base substrate seasoning after the moulding 24 hours, under 110 ℃ of conditions dry 16 ~ 32 hours again.
In the present embodiment: porous cordierite ceramic particulate apparent porosity is 38 ~ 46%, and mean pore size is 20 ~ 30 μ m; Porous cordierite ceramic particulate grain composition ratio is: 5 ~ 3mm accounts for raw material 15 ~ 22wt%, and 3 ~ 1mm accounts for raw material 15 ~ 22wt%, and 1 ~ 0.1mm accounts for raw material 10 ~ 16wt%.
Adopt the said technical scheme of present embodiment, obtain apparent porosity and be 40 ~ 48%, volume density is 1.34 ~ 1.40g/cm
3With folding strength be the trichroite lightening casting material of 2 ~ 4MPa.Burn till under 1300 ~ 1410 ℃ of conditions, soaking time is 3 ~ 8 hours, obtains apparent porosity and be 40 ~ 50%, volume density is 1.33 ~ 1.40g/cm
3, mean pore size is that 20 ~ 30 μ m and folding strength are the trichroite lightening casting material of 5 ~ 10MPa.
Embodiment 3
A kind of trichroite lightening casting material and preparation method thereof: with the porous cordierite ceramic particle of 40 ~ 60wt%, the cordierite ceramic fine powder of 28 ~ 48wt%, the aluminous cement of 6 ~ 10wt%, the talcum fine powder of 2 ~ 4wt%, the ultrafine silica powder of 2 ~ 4wt% and the active alpha alumina powder of 2 ~ 4wt% is raw material; Add the water of said raw material 16 ~ 20wt% and the dispersed aluminum oxide of said raw material 0.5 ~ 1wt%; Stir casting; Base substrate seasoning after the moulding 24 hours, under 110 ℃ of conditions dry 30 ~ 48 hours again.
In the present embodiment: porous cordierite ceramic particulate apparent porosity is 45 ~ 55%, and mean pore size is 15 ~ 25 μ m; Porous cordierite ceramic particulate grain composition ratio is: 3 ~ 1mm accounts for raw material 15 ~ 25wt%, and 1 ~ 0.1mm accounts for raw material 25 ~ 35wt%.
Adopt the said technical scheme of present embodiment, obtain apparent porosity and be 45 ~ 58%, volume density is 1.22 ~ 1.40g/cm
3, folding strength is the trichroite lightening casting material of 1 ~ 3MPa; Burn till under 1300 ~ 1410 ℃ of conditions, soaking time is 3 ~ 8 hours, obtains apparent porosity and be 44 ~ 60%, volume density is 1.21 ~ 1.39g/cm
3, mean pore size is that 15 ~ 25 μ m, folding strength are the trichroite lightening casting material of 4 ~ 8MPa.
Embodiment 4
A kind of trichroite lightening casting material and preparation method thereof: with the porous cordierite ceramic particle of 40 ~ 60wt%, the cordierite ceramic fine powder of 25 ~ 43wt%, the aluminous cement of 4 ~ 8wt%, the talcum fine powder of 2 ~ 4wt%, the ultrafine silica powder of 2 ~ 4wt% and the active alpha alumina powder of 2 ~ 4wt% is raw material; Add water and the dispersed aluminum oxide of said raw material 0.2 ~ 0.8wt% and the poly carboxylic acid series water reducer of 0.05 ~ 0.15wt% of said raw material 13 ~ 17wt%; Stir; Casting; Base substrate seasoning after the moulding 24 hours, under 110 ℃ of conditions dry 16 ~ 32 hours again.
In the present embodiment: porous cordierite ceramic particulate apparent porosity is 40 ~ 45%, and mean pore size is 10 ~ 20 μ m; Porous cordierite ceramic particulate grain composition ratio is: 5 ~ 3mm accounts for raw material 15 ~ 22wt%, and 3 ~ 1mm accounts for raw material 15 ~ 22wt%, and 1 ~ 0.1mm accounts for raw material 10 ~ 16wt%.
Adopt the said technical scheme of present embodiment, obtain apparent porosity and be 38 ~ 47%, volume density is 1.34 ~ 1.42g/cm
3With folding strength be the trichroite lightening casting material of 2 ~ 6MPa; Burn till under 1300 ~ 1410 ℃ of conditions, soaking time is 2 ~ 6 hours, obtains apparent porosity and be 39 ~ 48%, volume density is 1.34 ~ 1.41g/cm
3, mean pore size is that 10 ~ 20 μ m and folding strength are the trichroite lightening casting material of 7 ~ 12MPa.
Embodiment 5
A kind of trichroite lightening casting material and preparation method thereof: the active alpha alumina powder with talcum fine powder, 2 ~ 4wt% ultrafine silica powder and the 2 ~ 4wt% of the aluminous cement of the cordierite ceramic fine powder of the porous cordierite ceramic particle of 50 ~ 70wt%, 20 ~ 38wt%, 2 ~ 6wt%, 2 ~ 4wt% is a raw material; Add water and the tripoly phosphate sodium STPP of said raw material 0.1 ~ 0.3wt% and the Sodium hexametaphosphate 99 of 0.1 ~ 0.3wt% of said raw material 11 ~ 16wt%; Stir casting; Base substrate seasoning after the moulding 24 hours, under 110 ℃ of conditions dry 8 ~ 18 hours again.
In the present embodiment: porous cordierite ceramic particulate apparent porosity is 40 ~ 45%, and mean pore size is 10 ~ 20 μ m; Porous cordierite ceramic particulate grain composition ratio is: 8 ~ 5mm is raw material 8 ~ 12wt%, and 5 ~ 3mm is raw material 18 ~ 24wt%, and 3 ~ 1mm is raw material 18 ~ 24wt%, and 1 ~ 0.1mm is raw material 6 ~ 10wt%;
Adopt the said technical scheme of present embodiment, obtain apparent porosity and be 39 ~ 46%, volume density is 1.37 ~ 1.41g/cm
3With folding strength be the trichroite lightening casting material of 4 ~ 7MPa; Burn till under 1300 ~ 1410 ℃ of conditions, soaking time is 3 ~ 8 hours, obtains apparent porosity and be 40 ~ 46%, volume density is 1.34 ~ 1.40g/cm
3, mean pore size is that 10 ~ 20 μ m and folding strength are the trichroite lightening casting material of 9 ~ 16MPa.
Embodiment 6
A kind of trichroite lightening casting material and preparation method thereof: with the porous cordierite ceramic particle of 40 ~ 60wt%, the cordierite ceramic fine powder of 25 ~ 43wt%, the aluminous cement of 4 ~ 8wt%, the talcum fine powder of 2 ~ 4wt%, the ultrafine silica powder of 2 ~ 4wt% and the active alpha alumina powder of 2 ~ 4wt% is raw material; Add water and the tripoly phosphate sodium STPP of said raw material 0.1 ~ 0.3wt%, the Sodium hexametaphosphate 99 of 0.1 ~ 0.3wt% and the dispersed aluminum oxide of 0.1 ~ 0.3wt% of said raw material 14 ~ 18wt%; Stir casting; Base substrate seasoning after the moulding 24 hours, under 110 ℃ of conditions dry 28 ~ 45 hours again.
In the present embodiment: porous cordierite ceramic particulate apparent porosity is 45 ~ 55%, and mean pore size is 15 ~ 25 μ m; Porous cordierite ceramic particulate grain composition ratio is: 5 ~ 3mm accounts for raw material 15 ~ 22wt%, and 3 ~ 1mm accounts for raw material 15 ~ 22wt%, and 1 ~ 0.1mm accounts for raw material 10 ~ 16wt%.
Adopt the said technical scheme of present embodiment, obtain apparent porosity and be 43 ~ 55%, volume density is 1.24 ~ 1.42g/cm
3With folding strength be the trichroite lightening casting material of 2 ~ 4MPa; Burn till under 1300 ~ 1410 ℃ of conditions, soaking time is 3 ~ 8 hours, obtains apparent porosity and be 42 ~ 58%, volume density is 1.23 ~ 1.40g/cm
3, mean pore size is that 15 ~ 25 μ m and folding strength are the trichroite lightening casting material of 5 ~ 10MPa.
Embodiment 7
A kind of trichroite lightening casting material and preparation method thereof: with the porous cordierite ceramic particle of 40 ~ 60wt%, the cordierite ceramic fine powder of 28 ~ 48wt%, the aluminous cement of 6 ~ 10wt%, the talcum fine powder of 2 ~ 4wt%, the ultrafine silica powder of 2 ~ 4wt% and the active alpha alumina powder of 2 ~ 4wt% is raw material; Add water and the tripoly phosphate sodium STPP of said raw material 0.1 ~ 0.2wt%, the Sodium hexametaphosphate 99 of 0.1 ~ 0.2wt%, the dispersed aluminum oxide of 0.1 ~ 0.2wt% and the poly carboxylic acid series water reducer of 0.05 ~ 0.1wt% of said raw material 11 ~ 16wt%; Stir casting; Base substrate seasoning after the moulding 24 hours, under 110 ℃ of conditions dry 15 ~ 30 hours again.
In the present embodiment: porous cordierite ceramic particulate apparent porosity is 40 ~ 45%, and mean pore size is 10 ~ 20 μ m; Porous cordierite ceramic particulate grain composition ratio is: 3 ~ 1mm accounts for raw material 15 ~ 25wt%, and 1 ~ 0.1mm accounts for raw material 25 ~ 35wt%.
Adopt the said technical scheme of present embodiment, obtain apparent porosity and be 37 ~ 46%, volume density is 1.35 ~ 1.43g/cm
3With folding strength be the trichroite lightening casting material of 3 ~ 6MPa; Burn till under 1300 ~ 1410 ℃ of conditions, soaking time is 2 ~ 6 hours, obtains apparent porosity and be 38 ~ 46%, volume density is 1.35 ~ 1.43g/cm
3, mean pore size is that 10 ~ 20 μ m and folding strength are the trichroite lightening casting material of 8 ~ 14MPa.
This embodiment adopts " a kind of porous cordierite ceramic material and preparation method thereof (CN201110038289.2) " patented technology of applicant's application to prepare porous cordierite ceramic particle and cordierite ceramic fine powder; Be porous aggregate and be that matrix prepares the trichroite lightening casting material mainly that with prepared porous cordierite ceramic preparation technology is simple with the cordierite ceramic fine powder.Prepared product chemical ingredients mainly is MgO, Al
2O
3And SiO
2, its principal crystalline phase is a trichroite.Through existing high intensity of the prepared material of this embodiment and heat-insulating property, good thermal shock resistance and anti-erosion medium resistance ability are arranged also.
Therefore; This embodiment preparation technology is simple; It is controlled and burn the little advantage of back volume change that prepared trichroite lightening casting material has easy construction, environmental friendliness, apparent porosity and pore size, also has the apparent porosity height, mean pore size is little, intensity is high, thermal conductivity is low, good thermal shock stability and the strong advantage of anti-erosion medium resistance ability.The prepared trichroite lightening casting material of this embodiment is applicable to that working temperature is lower than 1340 ℃ the high temperature kiln or the permanent layer and the working lining of container.
Claims (7)
1. the preparation method of a trichroite lightening casting material; It is characterized in that the porous cordierite ceramic particle with 40 ~ 70wt%, the cordierite ceramic fine powder of 20 ~ 48wt%, the aluminous cement of 2 ~ 10wt%, the talcum fine powder of 2 ~ 4wt%, the ultrafine silica powder of 2 ~ 4wt% and the active alpha alumina powder of 2 ~ 4wt% are raw material; Add the water of said raw material 8 ~ 20wt% and the water reducer of said raw material 0.02 ~ 1wt%; Stir; Casting, the base substrate seasoning after the moulding 24 hours, under 110 ℃ of conditions dry 8 ~ 48 hours again;
The preparation method of porous cordierite ceramic particle and cordierite ceramic fine powder is: with the colliery powder of 8 ~ 12wt%, the Al of 33 ~ 37wt% (OH)
3The magnesite breeze of the talcum powder of powder, 8 ~ 12wt%, 13 ~ 17wt% and the ground silica of 28 ~ 32wt% mix, and the water that adds above-mentioned compound 3 ~ 12wt% stirs, compression moulding; With the base substrate after the moulding under 110 ℃ of conditions dry 8 ~ 36 hours, under 1300 ~ 1400 ℃ of conditions, be incubated 1 ~ 6 hour then and burn till again, promptly get porous cordierite ceramic; At last that porous cordierite ceramic is broken, screening, the particle of choosing particle diameter and be 8 ~ 0.1mm is the porous cordierite ceramic particle, choosing particle diameter is the cordierite ceramic fine powder less than the fine powder of 88 μ m.
2. the preparation method of trichroite lightening casting material according to claim 1, the particle diameter that it is characterized in that said aluminous cement is less than 88 μ m.
3. the preparation method of trichroite lightening casting material according to claim 1, the particle diameter that it is characterized in that said talcum fine powder is less than 88 μ m.
4. the preparation method of trichroite lightening casting material according to claim 1, the silica content that it is characterized in that said ultrafine silica powder is greater than 92 wt%, and particle diameter is less than 4 μ m.
5. the preparation method of trichroite lightening casting material according to claim 1, the alumina content that it is characterized in that said active alpha alumina powder is greater than 97 wt%, and particle diameter is less than 4 μ m.
6. the preparation method of trichroite lightening casting material according to claim 1 is characterized in that said water reducer is more than one in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, dispersed aluminum oxide and the poly carboxylic acid series water reducer.
7. according to the prepared trichroite lightening casting material of preparation method of each described trichroite lightening casting material in the claim 1 ~ 6.
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| CN103242051A (en) * | 2013-05-30 | 2013-08-14 | 武汉科技大学 | Lightweight corundum-mullite castable and preparation method thereof |
| CN103449830A (en) * | 2013-08-26 | 2013-12-18 | 武汉科技大学 | Light-weight aluminum-silicon aggregate and preparation method thereof |
| CN103952121A (en) * | 2014-04-04 | 2014-07-30 | 湖南省美程陶瓷科技有限公司 | Steatite ceramics composite water reducer and preparation method thereof |
| CN108424016A (en) * | 2017-02-14 | 2018-08-21 | 西南科技大学 | A kind of Structural Engineering high performance lightweight aggregate |
| CN109354485A (en) * | 2018-11-09 | 2019-02-19 | 洛阳索莱特材料科技有限公司 | A kind of fixed structure of ceramic nozzle and the preparation method of ceramic nozzle |
| CN111393156A (en) * | 2020-03-26 | 2020-07-10 | 攀枝花学院 | Preparation method of cordierite porous ceramic |
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| CN102765949B (en) | 2014-08-13 |
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