Inorganic sintering-free paint spray-coated microporous sintered granite slab, and preparation method thereof
A granite, sintering-free technology, applied in the field of building materials, can solve the problems of lag in decorative effect and high cost of exterior wall decoration, and achieve the effect of good thermal insulation performance and light weight
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Embodiment 1
[0027] A method for spraying a microporous sintered granite plate with an inorganic sintering-free coating, comprising the following steps:
[0028] A1. Preparation of a clay-coated pore-forming agent: mixing clay with a humidity of 30% and a pore-forming agent at a weight ratio of 1:7 to obtain a clay-coated pore-forming agent;
[0029] A2. Stir and mix granite powder, feldspar, talcum powder, clay-coated calcium carbonate, and bentonite in proportion to make a mixture evenly, and then granulate the mixture by rolling to form a plate-shaped embryo body; among them, 70 Granite powder, 20% feldspar, 3% talc, 5% clay-coated calcium carbonate, 2% bentonite.
[0030] A3. Press the plate-shaped embryo body into a plate-shaped structure with a certain pressure, and heat it in a high-temperature furnace at a temperature of 1000°C for 70 minutes. After the heating is completed, take it out of the high-temperature furnace and cool it naturally, which is the micropore Sintered granite ...
Embodiment 2
[0037] A method for spraying a microporous sintered granite plate with an inorganic sintering-free coating, comprising the following steps:
[0038] B1. Preparation of a clay-coated pore-forming agent: mixing clay with a humidity of 30% and a pore-forming agent at a weight ratio of 1:10 to obtain a clay-coated pore-forming agent;
[0039] B2. Stir and mix granite powder, feldspar, dolomite, clay-coated calcium carbonate, and attapulgite in proportion to make a mixture evenly, and then granulate the mixture by rolling to form a plate-shaped embryo body; among them, 75 % granite powder, 10% feldspar, 0.5% dolomite, 1% clay-coated calcium carbonate, 13.5% attapulgite.
[0040] B3. Press the plate-shaped embryo body into a plate-shaped structure with a certain pressure, and heat it in a high-temperature furnace at a temperature of 1200°C for 50 minutes. After the heating is completed, take it out of the high-temperature furnace and cool it naturally, which is the micropore Sinter...
Embodiment 3
[0046] A method for spraying a microporous sintered granite plate with an inorganic sintering-free coating, comprising the following steps:
[0047] C1. Preparation of a clay-coated pore-forming agent: mixing clay with a humidity of 30% and a pore-forming agent at a weight ratio of 1:8 to obtain a clay-coated pore-forming agent;
[0048] C2. Stir and mix granite powder, feldspar, dolomite, clay-coated calcium carbonate, and diatom mud in proportion to make a mixture evenly, and then granulate the mixture by rolling to form a plate-shaped embryo; wherein, 72% granite powder, 15% feldspar, 2% dolomite, 3% clay-coated calcium carbonate, 8% diatom mud.
[0049] C3. Press the plate-shaped embryo body into a plate-shaped structure with a certain pressure, and heat it in a high-temperature furnace at a temperature of 1100°C for 60 minutes. After the heating is completed, take it out of the high-temperature furnace and cool it naturally, which is the micropore Sintered granite slabs;...
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