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High-strength bauxite-chromite refractory material and preparation method thereof
The invention relates to a high-strength bauxite-chromite refractory material and a preparation method thereof. The high-strength bauxite-chromite refractory material comprises, by mass, 80-100 parts of alumina particles, 25-35 parts of alpha-alumina powder, 15-20 parts of nano-alumina, 20-35 parts of chromium oxide, 10-20 parts of graphene, 5-10 parts of an additive, 7-12 parts of a binder and 5-12 parts of nano-zirconia. The inside of the refractory material prepared in the invention is compact, so the bulk density is improved, and the apparent porosity of the refractory material is reduced to prevent expansion, thereby all physical performances, such as the strength, the thermal shock resistance and the thermal impact resistance of the refractory material are further improved; and the preparation method has the advantages of simplicity, abundant raw materials, and suitableness for factory production.
High-strength bauxite-chromite refractory material and preparation method thereof
The invention relates to a high-strength bauxite-chromite refractory material and a preparation method thereof. The high-strength bauxite-chromite refractory material comprises, by mass, 80-100 parts of alumina particles, 25-35 parts of alpha-alumina powder, 15-20 parts of nano-alumina, 20-35 parts of chromium oxide, 10-20 parts of graphene, 5-10 parts of an additive, 7-12 parts of a binder and 5-12 parts of nano-zirconia. The inside of the refractory material prepared in the invention is compact, so the bulk density is improved, and the apparent porosity of the refractory material is reduced to prevent expansion, thereby all physical performances, such as the strength, the thermal shock resistance and the thermal impact resistance of the refractory material are further improved; and the preparation method has the advantages of simplicity, abundant raw materials, and suitableness for factory production.
High-strength bauxite-chromite refractory material and preparation method thereof
SHE JIANFENG (author)
2015-12-09
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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