A kind of cordierite honeycomb ceramic carrier with full oxide as raw material and preparation method thereof
A cordierite honeycomb, ceramic carrier technology, applied in ceramic products, other household appliances, household appliances, etc., can solve the problems of reducing the thermal expansion coefficient, difficult extrusion molding, mold wear, etc., to reduce the thermal expansion coefficient, and the shape is easy to control. , the effect of increasing the regeneration temperature
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Embodiment 1
[0052] 1. Flaky alumina with an aspect ratio of 15:1, D50=20μm-30μm, active magnesia with D50=0.2μm-0.6μm, fumed silica with D50=4μm-6μm As raw materials, their contents are: 35.8% of flake alumina, 13.5% of active magnesium oxide, and 50.7% of fumed silica.
[0053] 2. Weigh each raw material according to the above content, then add methyl cellulose with 8% of the total mass of raw materials, fully dry mix, and then add silicone polyether copolymer with 1.0% of the total mass of raw materials (such as Dow Corning’s DC series) 1. Soybean oil of 1% of the total mass of raw materials and water of 32% of the total mass of raw materials are kneaded, vacuum-soiled, and stale at room temperature for 24 hours after the kneading;
[0054] 3. After aging, extrude the mud material to obtain a ceramic carrier green body with a size of Φ330.2×152.4mm and a wall thickness of 4mil. Dry the ceramic carrier green body, and then heat it up to 1425-1430°C for 100-120h for firing , and then kee...
Embodiment 2
[0056] The cordierite honeycomb ceramic carrier was prepared according to the method of Example 1, except that the content of the raw materials was: 32% of flake alumina, 15% of active magnesium oxide, and 53% of fumed silica.
Embodiment 3
[0058] The cordierite honeycomb ceramic carrier was prepared according to the method of Example 1, except that the content of the raw materials was: 38% of flake alumina, 12% of active magnesium oxide, and 50% of fumed silica.
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