Dry material anti-oxidation coating for continuous casting tundish

An anti-oxidation coating and continuous casting technology, applied in the field of refractory coating, can solve the problems affecting the safety performance of the tundish, reducing the strength of dry materials, loose structure, etc. Strong binding effect

Pending Publication Date: 2021-12-31
SHANGHAI LIER REFRACTORY MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage is that there is carbon loss during high-temperature baking, which leads to a decrease in the strength of the dry material on the hot surface of the working layer and a loose structure, which has a significant adverse effect on the strength and erosion res

Method used

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  • Dry material anti-oxidation coating for continuous casting tundish

Examples

Experimental program
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Example Embodiment

[0048] Implementation case 1:

[0049] Temperature weighed glass powder 17 parts, 6 parts of sodium silicate solids, 34 parts of light burned magnesium powder, 1.3 parts of terpineol, 2.5 parts of ethyl cellulose, 3.2 parts of the aqueous epoxy resin, 4 parts of sodium metasilicate nonahydrate, 32 parts silicon carbide scrap, MoSi 2 30 parts of a powder, B 2 O 3 Powder 30 parts, SiO 2 Powder 25 parts, 50 parts of isopropanol, 30 parts of chloroplatinic acid powder, 45 parts of ethanol, 15 parts polycarbosilane solution, dilute ammonia solution and 18 parts of deionized water, 57 parts;

[0050] The MgO powder and an aqueous epoxy mix to be added into a planetary ball mill, and then into the reaction 80min vacuum oven and dried by heating in a feed-ball speed ratio 1︰1.5 vibration mill mixing, heating time to 25min, a heating temperature of 95 deg.] C, mixed powder, the mixed powder of particle size of 600 mesh, the medium-temperature glass frit, waste carbide, sodium metasilicate ...

Example Embodiment

[0052] Implementation Case 2:

[0053] Temperature weighed glass powder 18 parts, 5 parts of sodium silicate solids, 33 parts of light burned magnesium powder, 1 parts of terpineol, ethyl cellulose, 2 parts, 3 parts of the aqueous epoxy resin, 3 parts of sodium metasilicate nonahydrate, 35 parts silicon carbide scrap, MoSi 2 30 parts of a powder, B 2 O 3 Powder 30 parts, SiO 2 Powder 25 parts, 50 parts of isopropanol, 30 parts of chloroplatinic acid powder, 45 parts of ethanol, 15 parts polycarbosilane solution, 18 parts of dilute ammonia solution and 56 parts of deionized water;

[0054] The MgO powder and an aqueous epoxy mix to be added into a planetary ball mill, and then into the reaction 80min vacuum oven and dried by heating in a feed-ball speed ratio 1︰1.5 vibration mill mixing, heating time to 25min, a heating temperature of 95 deg.] C, mixed powder, the mixed powder of particle size of 600 mesh, the medium-temperature glass frit, waste carbide, sodium metasilicate nonahy...

Example Embodiment

[0056] Implementation Case 3:

[0057]Temperature weighed glass powder 16 parts, 8 parts of sodium silicate solids, 31 parts of light burned magnesium powder, 1.5 parts of terpineol, 3 parts of ethyl cellulose, 3 parts of the aqueous epoxy resin, 3.5 parts of sodium metasilicate nonahydrate, 34 parts silicon carbide scrap, MoSi 2 30 parts of a powder, B 2 O 3 Powder 30 parts, SiO 2 Powder 25 parts, 50 parts of isopropanol, 30 parts of chloroplatinic acid powder, 45 parts of ethanol, 15 parts polycarbosilane solution, dilute ammonia solution and 18 parts of deionized water, 58 parts;

[0058] The MgO powder and an aqueous epoxy mix to be added into a planetary ball mill, and then into the reaction 80min vacuum oven and dried by heating in a feed-ball speed ratio 1︰1.5 vibration mill mixing, heating time to 25min, a heating temperature of 95 deg.] C, mixed powder, the mixed powder of particle size of 600 mesh, the medium-temperature glass frit, waste carbide, sodium metasilicate non...

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Abstract

The invention relates to the technical field of refractory coatings, in particular to a dry material anti-oxidation coating for a continuous casting tundish. The coating contains medium-temperature glass powder, solid water glass, caustic-burned magnesia powder, terpilenol, ethyl cellulose, waterborne epoxy resin, sodium metasilicate nonahydrate, silicon carbide waste, MoSi2 powder, B2O3 powder, SiO2 powder, isopropanol, chloroplatinic acid powder, absolute ethyl alcohol, a polycarbosilane solution, a dilute ammonia water solution and deionized water. The problems that oxygen cannot be blocked during high-temperature baking of an existing working layer, carbon oxidation is likely to happen after phenolic resin is carbonized, the strength of the dry material is reduced, the service life of the dry material is shortened, a packet collapse accident is likely to happen, and the use cost of the dry material per ton of steel is higher can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of refractory coatings, in particular to an anti-oxidation coating for continuous casting tundish dry material. Background technique [0002] The magnesium dry material in the working layer of the continuous casting tundish can reduce the pollution of the molten steel due to the introduction of refractory impurities, and is easy to turn over during use. The unsintered dry material has a high porosity, which is beneficial to the heat preservation of the molten steel. It has the advantages of long service life and high construction efficiency, so it has been widely used and greatly improved the labor productivity of the continuous casting process. [0003] At present, phenolic resin is used as the binder for the slag line magnesium dry material in the working layer of the tundish, which has outstanding advantages. Anti-slag performance; after use, it has good disassembly and is easy to turn over. [0004] Th...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/18
CPCC09D1/00C09D5/18
Inventor 李胜春李勇伟李洪波孙振猛李维锋
Owner SHANGHAI LIER REFRACTORY MATERIAL
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