A kind of porous ceramics, light-weight high-strength ceramic plates fired rapidly and preparation method thereof
A technology of porous ceramics and ceramic plates, applied in the field of architectural ceramics, can solve the problems of difficulty in controlling high-temperature foaming, fuel consumption, etc., and achieve the effects of ensuring product flatness, reducing emissions, and shortening the firing cycle.
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Embodiment 1
[0037] This embodiment is a light-weight and high-strength ceramic plate of rapid firing according to the present invention, and the preparation method of the light-weight and high-strength ceramic plate of rapid firing comprises the following steps:
[0038] (1) According to the formula of porous ceramics, weigh each raw material;
[0039] (2) In the raw material of porous ceramics described in step (1), add silicon carbide foaming agent (addition accounts for 0.1% of the total weight of porous ceramic raw materials) and water glass (addition accounts for 0.7% of the total weight of porous ceramic raw materials) %); after mixing evenly, wet ball milling was carried out with water for 4 hours to obtain ceramic slurry, which was spray-dried at a flow rate of 46 s to obtain a sieve residue of 0.8% on a 250-mesh sieve and a moisture content of 6.4 %ceramic powder;
[0040] (3) Press the ceramic powder obtained in step (2) into a ceramic body, and then sequentially dry, glaze, an...
Embodiment 2
[0044] This embodiment is a light-weight and high-strength ceramic plate of rapid firing according to the present invention, and the preparation method of the light-weight and high-strength ceramic plate of rapid firing comprises the following steps:
[0045] (1) According to the formula of porous ceramics, weigh each raw material;
[0046] (2) In the raw material of porous ceramics described in step (1), add high-temperature blowing agent carbon black (addition accounts for 1% of porous ceramic raw material gross weight) and dispersant sodium tripolyphosphate (addition accounts for porous ceramic 1.8% of the total weight of raw materials), after mixing evenly, wet ball milling was carried out with water for 4 hours to obtain ceramic slurry, and the ceramic slurry was spray-dried at a flow rate of 40 seconds to obtain a sieve residue of 250 mesh sieves less than 1.0 %, ceramic powder with a moisture content of 5%;
[0047] (3) Pressing the ceramic powder obtained in step (2) ...
Embodiment 3
[0051] This embodiment is a light-weight and high-strength ceramic plate of rapid firing according to the present invention, and the preparation method of the light-weight and high-strength ceramic plate of rapid firing comprises the following steps:
[0052] (1) According to the formula of porous ceramics, weigh each raw material;
[0053] (2) In the porous ceramic raw material described in step (1), add polishing slag containing silicon carbide (the addition accounts for 10% of the total weight of the porous ceramic raw material) and dispersant sodium tripolyphosphate (the addition accounts for 10% of the porous ceramic raw material). 1% of the total weight of ceramic raw materials), after mixing evenly, wet ball milling was carried out with water for 6 hours to obtain ceramic slurry, and the ceramic slurry was spray-dried at a flow rate of 60 seconds to obtain a sieve residue of 250 mesh sieve less than 1.0%, moisture content 8% ceramic powder;
[0054] (3) Press the ceram...
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