Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Light slightly-closed hole corundum complex-phase refractory material and preparation method thereof
The invention provides a light slightly-closed hole corundum complex-phase refractory material and a preparation method thereof. The refractory material is prepared by conducting mixing and wet grinding to obtain slurry with, by weight, 95-99 parts of alpha-Al2O3 and 1-5 parts of doloma as raw materials and, by weight, 2-15 parts of nanometer alumina sol, 5-15 parts of saccharide polymers and 30-50 parts of organic alcohol as additives, placing the slurry in a mold for 6-12 hours under the temperature of 15-25 DEG C, placing the mold at the temperature of 60-90 DEG C, keeping the temperature for 6-12 hours, conducting demolding, drying a blank obtained after demolding for 24-36 hours under the condition that the temperature is 110-200 DEG C, keeping the temperature for 2-5 hours under the condition that the temperature is 1800-2000 DEG C, and obtaining the light slightly-closed hole corundum complex-phase refractory material. The invention further discloses the preparation method of the light slightly-closed hole corundum complex-phase refractory material. The light slightly-closed hole corundum complex-phase refractory material has the advantages of being low in volume density, small in average pore size, high in closed porosity, low in heat conductivity, high in thermal shock resistance, resistant to flushing and high in slag corrosion resistance.
Light slightly-closed hole corundum complex-phase refractory material and preparation method thereof
The invention provides a light slightly-closed hole corundum complex-phase refractory material and a preparation method thereof. The refractory material is prepared by conducting mixing and wet grinding to obtain slurry with, by weight, 95-99 parts of alpha-Al2O3 and 1-5 parts of doloma as raw materials and, by weight, 2-15 parts of nanometer alumina sol, 5-15 parts of saccharide polymers and 30-50 parts of organic alcohol as additives, placing the slurry in a mold for 6-12 hours under the temperature of 15-25 DEG C, placing the mold at the temperature of 60-90 DEG C, keeping the temperature for 6-12 hours, conducting demolding, drying a blank obtained after demolding for 24-36 hours under the condition that the temperature is 110-200 DEG C, keeping the temperature for 2-5 hours under the condition that the temperature is 1800-2000 DEG C, and obtaining the light slightly-closed hole corundum complex-phase refractory material. The invention further discloses the preparation method of the light slightly-closed hole corundum complex-phase refractory material. The light slightly-closed hole corundum complex-phase refractory material has the advantages of being low in volume density, small in average pore size, high in closed porosity, low in heat conductivity, high in thermal shock resistance, resistant to flushing and high in slag corrosion resistance.
Light slightly-closed hole corundum complex-phase refractory material and preparation method thereof
GU HUAZHI (Autor:in) / HUANG AO (Autor:in) / FU LYUPING (Autor:in) / ZHANG MEIJIE (Autor:in) / LI NAN (Autor:in)
13.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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