Method for preparing SiC whisker toughened Al2O3 abrasion-resistant refractory material and material prepared through method
A refractory material and whisker technology is applied in the field of preparing SiC whisker toughened Al2O3 wear-resistant refractory materials, which can solve the problems of high temperature required for sintering, large amount of external carbon source, large fuel consumption, etc. The effect of lower temperature, lower cost and lower energy consumption
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Embodiment 1
[0027] The weight ratio of the components is 75 parts of white mud, 15 parts of coke powder, and 2 parts of polyvinyl alcohol, wherein SiO in white mud 2 75.32% by weight, A1 2 o 3 The weight percentage is 15.12%; the weight percentage of C in coke powder is 99.0%. Take the above materials and put them into a mixer, dry mill for 10 hours, the particle size of lime mud and coke powder are both less than 0.088mm, and the sieve residue of 200 mesh sieve is less than 2.0wt.%. The uniformly mixed material is placed in a mixer and mixed with an appropriate amount of water, shaped in a molding machine, dried naturally at room temperature for 10 hours, and then dried in a drying kiln at 100°C for 12 hours to make the moisture content ≤ 3.0% to obtain a green body; the obtained The green body is put into a muffle furnace and fired at a firing temperature of 1400°C, kept at 1400°C for 90 minutes, and cooled to obtain the product.
Embodiment 2
[0029] The weight ratio of the components is 70 parts of white mud, 30 parts of coke powder, and 3 parts of polyvinyl alcohol, wherein SiO in white mud 2 70.38% by weight, A1 2 o 3 The weight percentage is 20.56%; the weight percentage of C in coke powder is 99.0%; the particle size of white mud and coke powder are both less than 0.088mm. Take the above-mentioned materials and put them into a mixer, dry mill for 12 hours, so that the particle size is less than 0.074mm, and the sieve residue of 200 mesh aperture is less than 2.0wt.%. The uniformly mixed material is placed in a mixer and mixed with an appropriate amount of water, shaped in a molding machine, dried naturally at room temperature for 12 hours, and then dried in a drying kiln at 100°C for 12 hours to make the moisture content ≤ 3.0% to obtain a green body; the obtained The green body is put into a muffle furnace and fired at a firing temperature of 1500°C, kept at 1500°C for 2 hours, and cooled to obtain the produ...
Embodiment 3
[0031] The weight ratio of the components is 65 parts of white mud, 35 parts of coke powder, and 3 parts of polyvinyl alcohol, wherein SiO in white mud 2 68.86% by weight, A1 2 o 3 The weight percentage is 23.25%; the weight percentage of C in coke powder is 99.0%; the particle size of white mud and coke powder are both less than 0.088mm. Take the above-mentioned materials and put them into a mixer, dry mill for 12 hours, so that the particle size is less than 0.074mm, and the sieve residue of 200 mesh aperture is less than 2.0wt.%. The uniformly mixed material is placed in a mixer and mixed with an appropriate amount of water, shaped in a molding machine, dried naturally at room temperature for 12 hours, and then dried in a drying kiln at 100°C for 12 hours to make the moisture content ≤ 3.0% to obtain a green body; the obtained The green body is put into a muffle furnace and fired at a firing temperature of 1450°C, kept at 1450°C for 3 hours, and cooled to obtain the produ...
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