High-temperature air-leakage-proof expansion coating for tundish sleeve, and preparation method thereof
A technology for preventing gas leaks and wrapping casings, which is applied in the field of refractory materials, can solve the problems of volume shrinkage, large porosity, and inability to close pores, and achieve the effects of reducing gas N content, improving service life, and reducing manpower and material resources.
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[0048] In terms of weight percentage, weigh methyl cellulose, styrene-acrylic emulsion, thickener, high-purity magnesia, silica powder, kyanite, zirconia, C, and add: water. After mixing the powdered solids according to formula 1, formula 2 and formula 3 in Table 1, add a liquid binder with a total weight of 25% of each component and stir for 8 to 10 hours to obtain formula 1, formula 2 and formula 3 High-temperature anti-leakage gas expansion coating for tundish casing.
[0049] Each component content in formula 1, formula 2 and formula 3 of table 1
[0050]
[0051] A high-temperature anti-leakage air-expansion coating for tundish casing obtained from formula 1, formula 2 and formula 3, appearance: water-soluble thick liquid; properties: carrier (water-soluble); specific gravity: 1.3-1.9; viscosity: 8 -20P.
[0052] The high-temperature anti-leakage air-expansion coatings for the tundish casing of the prepared 3 formulations passed the test, and their properties are sho...
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