Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ceramic filter for continuous casting tundish and method for preparing the same
The invention relates to a ceramic filter for a continuous casting tundish and a method for preparing the same. The technical scheme is that 50-70wt% of calcium carbonate particles, 2-15wt% of corundum particles and 2-10wt% of magnesia-alumina spinel particles serve as aggregate; 1-5wt% of prefused dodecacalcium hepta-aluminate particles, 10-15wt% of fine monocalcium aluminate powder and 4-10wt% of fine calcium dialuminate powder and 4-6wt% of prefused fine dodecacalcium hepta-aluminate powder serve as substrates; and silicone resin that accounts for 2-7wt% of the sum of the aggregate and the substrates serves as a binding agent. The binding agent and the aggregate are mixed and ground evenly, and the substrates are added to be mixed and ground for 3-7 min to obtain a mixture; vibrating pressure forming is performed, demolding is performed, and the mixture undergoes heat preservation for 6-36 h at 180-320 DEG C to obtain the ceramic filter for the continuous casting tundish. The ceramic filter for the continuous casting tundish has the advantages of wide impurity-removing particle size range, high efficiency, insusceptibility to blockage, high strength, washing resistance and long service life.
Ceramic filter for continuous casting tundish and method for preparing the same
The invention relates to a ceramic filter for a continuous casting tundish and a method for preparing the same. The technical scheme is that 50-70wt% of calcium carbonate particles, 2-15wt% of corundum particles and 2-10wt% of magnesia-alumina spinel particles serve as aggregate; 1-5wt% of prefused dodecacalcium hepta-aluminate particles, 10-15wt% of fine monocalcium aluminate powder and 4-10wt% of fine calcium dialuminate powder and 4-6wt% of prefused fine dodecacalcium hepta-aluminate powder serve as substrates; and silicone resin that accounts for 2-7wt% of the sum of the aggregate and the substrates serves as a binding agent. The binding agent and the aggregate are mixed and ground evenly, and the substrates are added to be mixed and ground for 3-7 min to obtain a mixture; vibrating pressure forming is performed, demolding is performed, and the mixture undergoes heat preservation for 6-36 h at 180-320 DEG C to obtain the ceramic filter for the continuous casting tundish. The ceramic filter for the continuous casting tundish has the advantages of wide impurity-removing particle size range, high efficiency, insusceptibility to blockage, high strength, washing resistance and long service life.
Ceramic filter for continuous casting tundish and method for preparing the same
HUANG AO (Autor:in) / GU HUAZHI (Autor:in) / FU LYUPING (Autor:in)
30.09.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Renewable ceramic filter for continuous casting tundish and preparation method thereof
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