CN103011856A - Mullite light insulating brick and preparation method thereof - Google Patents
Mullite light insulating brick and preparation method thereof Download PDFInfo
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- CN103011856A CN103011856A CN2012105420325A CN201210542032A CN103011856A CN 103011856 A CN103011856 A CN 103011856A CN 2012105420325 A CN2012105420325 A CN 2012105420325A CN 201210542032 A CN201210542032 A CN 201210542032A CN 103011856 A CN103011856 A CN 103011856A
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Abstract
The invention relates to a mullite light insulating brick and a preparation method thereof. The technical scheme is as follows: the preparation method comprises the following steps of: by taking the following components by weight percent as raw materials: 30-40 wt% of a flint clay clinker, 20-30wt% of a clay clinker, 20-32wt% of kyanite micro-powder, 2-8 wt% of p-aluminum oxide micro-powder, 1-6wt% of light-burnt calcium oxide and 0.5-2wt% of silicon dioxide micro-powder, adding 20wt% of water and 0.5-2wt% of a water reducing agent, mixing and preparing a slurry; then, adding 0.1-0.5wt% of a foaming agent to prepare foams, stirring, adding 0.5-2 wt% of a gel, 0.1-1wt% of a thermosetting water-soluble high molecular compound and 0.5-2.5wt% of an accelerating agent, stirring, pouring, and molding; and finally, drying for 4-9 hours in a temperature of 30-50 DEG C, demolding, baking for 10-20 hours in a temperature of 60-120 DEG C, and preserving a temperature of 1350-1500 DEG C for 2-12 hours to obtain the mullite light insulating brick. The preparation method is short in de-molding time, short in drying period and environment-friendly; and the product is small in air hole size, uniform in air hole distribution, high in strength, low in volume density and low in heat conductivity coefficient.
Description
Technical field
The invention belongs to light thermal-shield refractory material technology field, be specifically related to a kind of mullite light heat-insulation brick and preparation method thereof.
Background technology
Be directed to China and even global energy and consume too fast present situation, it is particularly important that the research of heat insulation heat preservation energy-saving material seems.And heat-insulation and heat-preservation is one of energy-conservation important measures, and the heat-insulating heat-preserving material with micro-nano hole possesses the performance of a series of excellences such as quality is light, thermal conductivity is low, has consequence in field of thermal insulation.
Preparation porous light lagging material method mainly contains burnout substances addition method, sol-gel method, gas evolution method, self propagating high temperature synthesis method, gel injection method and porous raw material method etc. at present.The preparation of these methods great majority be open pore, be of limited application, in light heat-insulating material, be difficult to play good heat insulation effect, and in preparation process cost high, environment had pollutes and be not easy to control; Such as " a kind of prescription of new mullite light heat insulating brick " patented technology (CN101362651A), prepare the mullite light heat insulating brick with the poly-light ball of EPS and sawdust, production technique is complicated, the pore that the poly-light ball of EPS produces is unstable, adds the large wayward and contaminate environment of pore that sawdust produces.
The goods even aperture distribution that adopts foaming process to obtain, size are easy to control, and goods mostly are the hole of holding one's breath, but dry demould time is longer, and the stability of foam has restricted the performance of goods; Such as " light cinder brick take the mullite roller rod waste material as raw material and preparation method thereof " patented technology (CN101717267A), adopt the light mullite brick of foaming process preparation will be through could the demoulding after 100 ~ 120 ℃ of dryings, and demould time be very long.
Summary of the invention
The present invention is intended to overcome the prior art defective, purpose provides that a kind of demould time is fast, drying cycle is short, production technique is simple, the method for preparing the mullite light heat-insulation brick of environmental sound and suitable large-scale industrial production, and prepared mullite light heat-insulation brick pore size is little, pore evenly distributes, intensity is higher, volume density is lower and thermal conductivity is lower.
For achieving the above object, the technical solution adopted in the present invention is: the fine silica powder of ρ-alumina powder of the chamotte of first flint clay grog take 30 ~ 40wt%, 20 ~ 30wt%, the kyanite micro mist of 20 ~ 32wt%, 2 ~ 8wt%, the light-burned calcium oxide of 1 ~ 6wt% and 0.5 ~ 2wt% is as raw material, add the water of described raw material 10 ~ 20wt% and the water reducer of 0.5 ~ 2wt%, mix 3 ~ 15min, be modulated into slip; Add again the made foam of foaming agent of described raw material 0.1 ~ 0.5wt%, stir, then add the gelifying agent of described raw material 0.5 ~ 2wt%, the thermoset water-soluble high-molecular compound of 0.1 ~ 1wt% and the setting accelerator of 0.5 ~ 2.5wt%, stir 3 ~ 5min, casting; Last dry 4 ~ 9h under 30 ~ 50 ℃ of conditions, the demoulding is toasted 10 ~ 20h under 60 ~ 120 ℃ of conditions, be incubated 3 ~ 12h under 1350 ~ 1500 ℃ of conditions, makes the mullite light heat-insulation brick.
The granularity of described flint clay grog is less than 0.088mm.
The degree of described chamotte grain is less than 0.088mm.
The granularity of described kyanite micro mist is less than 0.088mm.
The granularity of described light-burned calcium oxide is less than 0.088mm.
Described water reducer is more than one in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 and the sodium polyacrylate.
Described gelifying agent is a kind of in alumina sol, aluminium silicon sol, TiO 2 sol, silicon dioxide gel and the Ti-Si sol.
Described thermoset water-soluble high-molecular compound is a kind of in thermoset water soluble phenol resin, water-soluble phenolic formaldehyde epoxy resin, polyvinylpyrrolidone, Walocel MT 20.000PV and the silicone resin.
Described setting accelerator is a kind of in ethyl acetate, methyl acetate, glycol ester, caprolactone and the butyl ester.
Because adopt technique scheme, the present invention compared with prior art has following positively effect:
1, because the present invention adopts foaming process to prepare the mullite light heat-insulation brick, therefore prepared goods pore size is little, even air hole distribution.
2, because the present invention adopts gelifying agent, thermoset water-soluble high-molecular compound and setting accelerator, method by gel injection prepares the mullite light heat-insulation brick, gelifying agent and setting accelerator solidify at normal temperatures, the thermoset water-soluble high-molecular compound solidifies under heating condition, so that slurry solidifies, and form network structure in the base substrate the inside, therefore the goods demould time is fast, drying cycle is short, be fit to large-scale industrial production.
3, because the present invention's material raw materials used and that add all is environmental sound, therefore environmental sound in the production of articles process.
4, the present invention's method of adopting foaming process and gel injection method to combine prepares the mullite light heat-insulation brick, the thermal conductivity of prepared goods is 0.15 ~ 0.5W/ (mK), volume density is 0.5 ~ 1.1g/cm3, and compressive strength is 2.0 ~ 22.4MPa, can satisfy well industrial requirements.
Therefore, the present invention have that demould time is fast, drying cycle is short, production technique is simple, the characteristics of environmental sound and suitable large-scale industrial production; Prepared mullite light heat-insulation brick pore size is little, even air hole distribution, intensity is higher, volume density is lower and thermal conductivity is lower.
Embodiment
The present invention will be further described below in conjunction with embodiment, is not limiting the scope of the invention.
For avoiding repetition, the relevant technologies improve parameter unification that this embodiment is involved is described below first:
The granularity of flint clay grog, chamotte, kyanite micro mist and light-burned calcium oxide is all less than 0.088mm.
Embodiment 1
A kind of mullite light heat-insulation brick and preparation method thereof.The fine silica powder of ρ-alumina powder of the chamotte of first flint clay grog take 30 ~ 34wt%, 25 ~ 30wt%, the kyanite micro mist of 26 ~ 32wt%, 4 ~ 6wt%, the light-burned calcium oxide of 1 ~ 4wt% and 0.5 ~ 1wt% is as raw material, add the water of described raw material 10 ~ 12wt% and the water reducer of 0.5 ~ 1.3wt%, mix 3 ~ 15min, be modulated into slip; Add again the made foam of foaming agent of described raw material 0.1 ~ 0.3wt%, stir, then add the gelifying agent of described raw material 0.5 ~ 1wt%, the thermoset water-soluble high-molecular compound of 0.1 ~ 0.4wt% and the setting accelerator of 0.5 ~ 1.2wt%, stir 3 ~ 5min, casting; Last dry 4 ~ 5h under 30 ~ 37 ℃ of conditions, the demoulding is toasted 10 ~ 13h under 60 ~ 120 ℃ of conditions, be incubated 3 ~ 5h under 1450 ~ 1500 ℃ of conditions, makes the mullite light heat-insulation brick.
In the present embodiment: water reducer is the mixture of tripoly phosphate sodium STPP and Sodium hexametaphosphate 99; Gelifying agent is alumina sol; The thermoset water-soluble high-molecular compound is the thermoset water soluble phenol resin; Setting accelerator is ethyl acetate.
The volume density of the present embodiment 1 preparation-obtained mullite light heat-insulation brick is 1 ~ 1.1g/cm
3, thermal conductivity is 0.45 ~ 0.5W/ (mK), compressive strength is 21 ~ 22.4MPa.
Embodiment 2
A kind of mullite light heat-insulation brick and preparation method thereof.Except following admixture, all the other are with embodiment 1.
In the present embodiment: water reducer is the mixture of tripoly phosphate sodium STPP and sodium polyacrylate; Gelifying agent is the aluminium silicon sol; The thermoset water-soluble high-molecular compound is the water-soluble phenolic formaldehyde epoxy resin; Setting accelerator is methyl acetate.
The volume density of the present embodiment 2 preparation-obtained mullite light heat-insulation bricks is 0.9 ~ 1g/cm
3, thermal conductivity is 0.4 ~ 0.46W/ (mK), compressive strength is 19.8 ~ 21.3MPa.
Embodiment 3
A kind of mullite light heat-insulation brick and preparation method thereof.Except following admixture, all the other are with embodiment 1.
In the present embodiment: water reducer is the mixture of Sodium hexametaphosphate 99 and sodium polyacrylate; Gelifying agent is TiO 2 sol; The thermoset water-soluble high-molecular compound is polyvinylpyrrolidone; Setting accelerator is glycol ester.
The volume density of the present embodiment 3 preparation-obtained mullite light heat-insulation bricks is 0.9 ~ 1.1g/cm
3, thermal conductivity is 0.39 ~ 0.45W/ (mK), compressive strength is 15.6 ~ 20.2MPa.
Embodiment 4
A kind of mullite light heat-insulation brick and preparation method thereof.Except following admixture, all the other are with embodiment 1.
In the present embodiment: water reducer is sodium polyacrylate; Gelifying agent is silicon dioxide gel; The thermoset water-soluble high-molecular compound is Walocel MT 20.000PV; Setting accelerator is caprolactone.
The volume density of the present embodiment 4 preparation-obtained mullite light heat-insulation bricks is 1 ~ 1.1g/cm
3, thermal conductivity is 0.42 ~ 0.49W/ (mK), compressive strength is 18.7 ~ 22.1MPa.
Embodiment 5
A kind of mullite light heat-insulation brick and preparation method thereof.Except following admixture, all the other are with embodiment 1.
In the present embodiment: water reducer is the mixture of sodium polyacrylate, Sodium hexametaphosphate 99 and tripoly phosphate sodium STPP; Gelifying agent is Ti-Si sol; The thermoset water-soluble high-molecular compound is silicone resin; Setting accelerator is butyl ester.
The volume density of the present embodiment 5 preparation-obtained mullite light heat-insulation bricks is 0.9 ~ 1g/cm
3, thermal conductivity is 0.38 ~ 0.43W/ (mK), compressive strength is 16.3 ~ 20.7MPa.
Embodiment 6
A kind of mullite light heat-insulation brick and preparation method thereof.The fine silica powder of ρ-alumina powder of the chamotte of first flint clay grog take 34 ~ 37wt%, 24 ~ 27wt%, the kyanite micro mist of 20 ~ 26wt%, 6 ~ 8wt%, the light-burned calcium oxide of 3 ~ 5wt% and 0.9 ~ 1.5wt% is as raw material, add the water of described raw material 12 ~ 16wt% and the water reducer of 1.3 ~ 1.6wt%, mix 3 ~ 15min, be modulated into slip; Add again the made foam of foaming agent of described raw material 0.3 ~ 0.4wt%, stir, then add the gelifying agent of described raw material 1.0 ~ 1.5wt%, the thermoset water-soluble high-molecular compound of 0.4 ~ 0.8wt% and the setting accelerator of 1.2 ~ 2wt%, stir 3 ~ 5min, casting; Last dry 5 ~ 8h under 36 ~ 42 ℃ of conditions, the demoulding is toasted 13 ~ 16h under 60 ~ 120 ℃ of conditions, be incubated 5 ~ 8h under 1400 ~ 1450 ℃ of conditions, makes the mullite light heat-insulation brick.
In the present embodiment: water reducer is Sodium hexametaphosphate 99; Gelifying agent is alumina sol; The thermoset water-soluble high-molecular compound is the water-soluble phenolic formaldehyde epoxy resin; Setting accelerator is glycol ester.
The volume density of the present embodiment 6 preparation-obtained mullite light heat-insulation bricks is 0.7 ~ 0.9g/cm
3, thermal conductivity is 0.32 ~ 0.4W/ (mK), compressive strength is 11.5 ~ 16.7MPa.
Embodiment 7
A kind of mullite light heat-insulation brick and preparation method thereof.Except following admixture, all the other are with embodiment 6.
In the present embodiment: water reducer is tripoly phosphate sodium STPP; Gelifying agent is the aluminium silicon sol; The thermoset water-soluble high-molecular compound is polyvinylpyrrolidone; Setting accelerator is caprolactone.
The volume density of the present embodiment 7 preparation-obtained mullite light heat-insulation bricks is 0.7 ~ 0.8g/cm
3, thermal conductivity is 0.26 ~ 0.35W/ (mK), compressive strength is 9.8 ~ 13.2MPa.
Embodiment 8
A kind of mullite light heat-insulation brick and preparation method thereof.Except following admixture, all the other are with embodiment 6.
In the present embodiment: water reducer is the mixture of tripoly phosphate sodium STPP and Sodium hexametaphosphate 99; Gelifying agent is TiO 2 sol; The thermoset water-soluble high-molecular compound is Walocel MT 20.000PV; Setting accelerator is butyl ester.
The volume density of the present embodiment 8 preparation-obtained mullite light heat-insulation bricks is 0.8 ~ 0.9g/cm
3, thermal conductivity is 0.32 ~ 0.39W/ (mK), compressive strength is 11.2 ~ 15.8MPa.
Embodiment 9
A kind of mullite light heat-insulation brick and preparation method thereof.Except following admixture, all the other are with embodiment 6.
In the present embodiment: water reducer is the mixture of tripoly phosphate sodium STPP and sodium polyacrylate; Gelifying agent is silicon dioxide gel; The thermoset water-soluble high-molecular compound is silicone resin; Setting accelerator is ethyl acetate.
The volume density of the present embodiment 9 preparation-obtained mullite light heat-insulation bricks is 0.7 ~ 0.9g/cm
3, thermal conductivity is 0.29 ~ 0.35W/ (mK), compressive strength is 12.3 ~ 17.9MPa.
Embodiment 10
A kind of mullite light heat-insulation brick and preparation method thereof.Except following admixture, all the other are with embodiment 6.
In the present embodiment: water reducer is the mixture of Sodium hexametaphosphate 99 and sodium polyacrylate; Gelifying agent is Ti-Si sol; The thermoset water-soluble high-molecular compound is the thermoset water soluble phenol resin; Setting accelerator is methyl acetate.
The volume density of the present embodiment 10 preparation-obtained mullite light heat-insulation bricks is 0.7 ~ 0.8g/cm
3, thermal conductivity is 0.25 ~ 0.38W/ (mK), compressive strength is 9.7 ~ 15.6MPa.
Embodiment 11
A kind of mullite light heat-insulation brick and preparation method thereof.The fine silica powder of ρ-alumina powder of the chamotte of first flint clay grog take 36 ~ 40wt%, 20 ~ 24wt%, the kyanite micro mist of 24 ~ 30wt%, 2 ~ 4wt%, the light-burned calcium oxide of 4 ~ 6wt% and 1.3 ~ 2wt% is as raw material, add the water of described raw material 16 ~ 20wt% and the water reducer of 1.6 ~ 2wt%, mix 3 ~ 15min, be modulated into slip; Add again the made foam of foaming agent of described raw material 0.4 ~ 0.5wt%, stir, then add the gelifying agent of described raw material 1.5 ~ 2wt%, the thermoset water-soluble high-molecular compound of 0.8 ~ 1wt% and the setting accelerator of 2 ~ 2.5wt%, stir 3 ~ 5min, casting; Last dry 7 ~ 9h under 42 ~ 50 ℃ of conditions, the demoulding is toasted 16 ~ 20h under 60 ~ 120 ℃ of conditions, be incubated 8 ~ 12h under 1350 ~ 1400 ℃ of conditions, makes the mullite light heat-insulation brick.
In the present embodiment: water reducer is tripoly phosphate sodium STPP; Gelifying agent is alumina sol; The thermoset water-soluble high-molecular compound is polyvinylpyrrolidone; Setting accelerator is butyl ester.
The volume density of the present embodiment 11 preparation-obtained mullite light heat-insulation bricks is 0.5 ~ 0.6g/cm
3, thermal conductivity is 0.15 ~ 0.22W/ (mK), compressive strength is 2 ~ 10.4MPa.
Embodiment 12
A kind of mullite light heat-insulation brick and preparation method thereof.Except following admixture, all the other are with embodiment 11.
In the present embodiment: water reducer is Sodium hexametaphosphate 99; Gelifying agent is the aluminium silicon sol; The thermoset water-soluble high-molecular compound is Walocel MT 20.000PV; Setting accelerator is ethyl acetate.
The volume density of the present embodiment 12 preparation-obtained mullite light heat-insulation bricks is 0.5 ~ 0.7g/cm
3, thermal conductivity is 0.17 ~ 0.27W/ (mK), compressive strength is 4.5 ~ 12.4MPa.
Embodiment 13
A kind of mullite light heat-insulation brick and preparation method thereof.Except following admixture, all the other are with embodiment 11.
In the present embodiment: water reducer is sodium polyacrylate; Gelifying agent is TiO 2 sol; The thermoset water-soluble high-molecular compound is silicone resin; Setting accelerator is methyl acetate.
The volume density of the present embodiment 13 preparation-obtained mullite light heat-insulation bricks is 0.5 ~ 0.6g/cm
3, thermal conductivity is 0.16 ~ 0.22W/ (mK), compressive strength is 3 ~ 9.2MPa.
Embodiment 14
A kind of mullite light heat-insulation brick and preparation method thereof.Except following admixture, all the other are with embodiment 11.
In the present embodiment: water reducer is the mixture of tripoly phosphate sodium STPP and Sodium hexametaphosphate 99; Gelifying agent is silicon dioxide gel; The thermoset water-soluble high-molecular compound is the thermoset water soluble phenol resin; Setting accelerator is glycol ester.
The volume density of the present embodiment 14 preparation-obtained mullite light heat-insulation bricks is 0.6 ~ 0.7g/cm
3, thermal conductivity is 0.21 ~ 0.29W/ (mK), compressive strength is 7.6 ~ 12.2MPa.
Embodiment 15
A kind of mullite light heat-insulation brick and preparation method thereof.Except following admixture, all the other are with embodiment 11.
In the present embodiment: water reducer is the mixture of tripoly phosphate sodium STPP and sodium polyacrylate; Gelifying agent is Ti-Si sol; The thermoset water-soluble high-molecular compound is the water-soluble phenolic formaldehyde epoxy resin; Setting accelerator is caprolactone.
The volume density of the present embodiment 15 preparation-obtained mullite light heat-insulation bricks is 0.5 ~ 0.7g/cm
3, thermal conductivity is 0.19 ~ 0.30W/ (mK), compressive strength is 7.3 ~ 12.1MPa.
The present invention compared with prior art has following positively effect:
1, because the present invention adopts foaming process to prepare the mullite light heat-insulation brick, so prepared goods pore size is little, even air hole distribution.
2, because the present invention adopts gelifying agent, thermoset water-soluble high-molecular compound and setting accelerator, method by a kind of gel injection prepares the mullite light heat-insulation brick, gelifying agent and setting accelerator solidify at normal temperatures, the thermoset water-soluble high-molecular compound solidifies under heating condition, so that slurry solidifies, and form network structure in the base substrate the inside, so the goods demould time is fast, drying cycle is short, is fit to large-scale industrial production.
3, because the present invention's material raw materials used and that add all is environmental sound, so environmental sound in the production of articles process.
4, the present invention's method of adopting foaming process and gel injection method to combine prepares the mullite light heat-insulation brick, the thermal conductivity of prepared goods is 0.15 ~ 0.5W/ (mK), volume density is 0.5 ~ 1.1g/cm3, and compressive strength is 2.0 ~ 22.4MPa, can satisfy well industrial requirements.
Therefore, the present invention have that demould time is fast, drying cycle is short, production technique is simple, the characteristics of environmental sound and suitable large-scale industrial production; Prepared mullite light heat-insulation brick pore size is little, even air hole distribution, intensity is higher, volume density is lower and thermal conductivity is lower.
Claims (10)
1. the preparation method of a mullite light heat-insulation brick, it is characterized in that first the fine silica powder of the light-burned calcium oxide of ρ-alumina powder, 1 ~ 6wt% of kyanite micro mist, the 2 ~ 8wt% of chamotte, the 20 ~ 32wt% of flint clay grog, 20 ~ 30wt% take 30 ~ 40wt% and 0.5 ~ 2wt% is as raw material, add the water of described raw material 10 ~ 20wt% and the water reducer of 0.5 ~ 2wt%, mix 3 ~ 15min, be modulated into slip; Add again the made foam of foaming agent of described raw material 0.1 ~ 0.5wt%, stir, then add the gelifying agent of described raw material 0.5 ~ 2wt%, the thermoset water-soluble high-molecular compound of 0.1 ~ 1wt% and the setting accelerator of 0.5 ~ 2.5wt%, stir 3 ~ 5min, casting; Last dry 4 ~ 9h under 30 ~ 50 ℃ of conditions, the demoulding is toasted 10 ~ 20h under 60 ~ 120 ℃ of conditions, be incubated 3 ~ 12h under 1350 ~ 1500 ℃ of conditions, makes the mullite light heat-insulation brick.
2. the preparation method of mullite light heat-insulation brick according to claim 1 is characterized in that the granularity of described flint clay grog is less than 0.088mm.
3. the preparation method of mullite light heat-insulation brick according to claim 1 is characterized in that the degree of described chamotte grain is less than 0.088mm.
4. the preparation method of mullite light heat-insulation brick according to claim 1 is characterized in that the granularity of described kyanite micro mist is less than 0.088mm.
5. the preparation method of mullite light heat-insulation brick according to claim 1 is characterized in that the granularity of described light-burned calcium oxide is less than 0.088mm.
6. the preparation method of mullite light heat-insulation brick according to claim 1 is characterized in that described water reducer is more than one in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 and the sodium polyacrylate.
7. the preparation method of mullite light heat-insulation brick according to claim 1 is characterized in that described gelifying agent is a kind of in alumina sol, aluminium silicon sol, TiO 2 sol, silicon dioxide gel and the Ti-Si sol.
8. the preparation method of mullite light heat-insulation brick according to claim 1 is characterized in that described thermoset water-soluble high-molecular compound is a kind of in thermoset water soluble phenol resin, water-soluble phenolic formaldehyde epoxy resin, polyvinylpyrrolidone, Walocel MT 20.000PV and the silicone resin.
9. the preparation method of mullite light heat-insulation brick according to claim 1 is characterized in that described setting accelerator is a kind of in ethyl acetate, methyl acetate, glycol ester, caprolactone and the butyl ester.
10. the prepared mullite light heat-insulation brick of preparation method of each described mullite light heat-insulation brick according to claim 1 ~ 9.
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| CN103496993A (en) * | 2013-09-23 | 2014-01-08 | 武汉科技大学 | High-strength calcium hexa-aluminate light heat insulation material and preparation method thereof |
| CN104086166A (en) * | 2014-07-30 | 2014-10-08 | 景德镇陶瓷学院 | Method for preparing architectural ceramic bricks by wet-casting molding of granite waste |
| CN105503209A (en) * | 2015-12-16 | 2016-04-20 | 武汉科技大学 | Mullite light heat-insulation brick based on flint clay and preparation method of brick |
| CN106699204A (en) * | 2016-12-20 | 2017-05-24 | 宜兴瑞泰耐火材料有限公司 | 400kg-grade light-weight mullite brick and preparation technique thereof |
| CN106747634A (en) * | 2016-12-05 | 2017-05-31 | 武汉科技大学 | A kind of mullite lightweight refracrory and preparation method thereof |
| CN106747583A (en) * | 2016-12-20 | 2017-05-31 | 宜兴瑞泰耐火材料有限公司 | A kind of 300kg grades of light mullite brick and its preparation technology |
| CN107954738A (en) * | 2017-11-06 | 2018-04-24 | 宜兴摩根热陶瓷有限公司 | A kind of method that low heat conduction mullite insulating brick is quickly prepared based on foam method |
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| CN103496993B (en) * | 2013-09-23 | 2015-07-15 | 武汉科技大学 | High-strength calcium hexa-aluminate light heat insulation material and preparation method thereof |
| CN104086166A (en) * | 2014-07-30 | 2014-10-08 | 景德镇陶瓷学院 | Method for preparing architectural ceramic bricks by wet-casting molding of granite waste |
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| CN105503209A (en) * | 2015-12-16 | 2016-04-20 | 武汉科技大学 | Mullite light heat-insulation brick based on flint clay and preparation method of brick |
| CN105503209B (en) * | 2015-12-16 | 2018-02-09 | 武汉科技大学 | A kind of mullite lightweight thermal insulation brick based on flint clay and preparation method thereof |
| CN106747634A (en) * | 2016-12-05 | 2017-05-31 | 武汉科技大学 | A kind of mullite lightweight refracrory and preparation method thereof |
| CN106747583A (en) * | 2016-12-20 | 2017-05-31 | 宜兴瑞泰耐火材料有限公司 | A kind of 300kg grades of light mullite brick and its preparation technology |
| CN106699204A (en) * | 2016-12-20 | 2017-05-24 | 宜兴瑞泰耐火材料有限公司 | 400kg-grade light-weight mullite brick and preparation technique thereof |
| CN106747583B (en) * | 2016-12-20 | 2019-09-10 | 宜兴瑞泰耐火材料有限公司 | A kind of 300kg grades of light mullite brick and its preparation process |
| CN107954738A (en) * | 2017-11-06 | 2018-04-24 | 宜兴摩根热陶瓷有限公司 | A kind of method that low heat conduction mullite insulating brick is quickly prepared based on foam method |
| WO2022144014A1 (en) * | 2020-12-31 | 2022-07-07 | 郑州轻工业大学 | Mullite-based micro-nano-porous heat insulating refractory material and preparation method therefor |
| CN114279802A (en) * | 2021-12-27 | 2022-04-05 | 西北工业大学 | High-temperature alloy fluidity test die and preparation method of test sample |
| CN114279802B (en) * | 2021-12-27 | 2024-04-12 | 西北工业大学 | High-temperature alloy fluidity test die and preparation method of test sample |
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