CN103130521A - Coating material on fireproof material for continuous casting device and use method thereof - Google Patents
Coating material on fireproof material for continuous casting device and use method thereof Download PDFInfo
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- CN103130521A CN103130521A CN2013100930025A CN201310093002A CN103130521A CN 103130521 A CN103130521 A CN 103130521A CN 2013100930025 A CN2013100930025 A CN 2013100930025A CN 201310093002 A CN201310093002 A CN 201310093002A CN 103130521 A CN103130521 A CN 103130521A
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Abstract
The invention relates to a coating material on a fireproof material for a continuous casting device and a use method thereof. The coating material contains a first mixture and a second mixture, wherein the first mixture contains the following ingredients in percent by weight: 3-7% of boron glass powder, 18-36% of quartz, 19-23% of flint clay, 26-49% of potassium feldspar, 3-16% of Suzhou soil and 0.06-0.15% of carboxymethyl cellulose, and the second mixture contains the following ingredients in percent by weight: 53-67% of boron glass powder, 21-31% of potassium feldspar, 11-16% of Suzhou soil and 0.05-0.09% of carboxymethyl cellulose. Two enamel layers are formed on the fireproof material for the continuous casting device, the spraying can be carried out after the fireproof material for the continuous casting device is molded, and single enamel layers are not sprayed any more when the fireproof material for the continuous casting device is manufactured (the spraying is carried out after the fireproof material for the continuous casting device is molded through sintering), so that the completeness of the enamel layers is guaranteed, and the oxidation resistance is improved.
Description
Technical field
The present invention relates to a kind of coating and using method, especially a kind of for the coating on the casting apparatus refractory materials and using method.
Background technology
In the continuous casting of iron and steel production process, can use the continuous-casting three-main-product fire resistive material product is stopper, submerged nozzle, long nozzle, because these goods can be subject to the exposed goods excessive temperature differentials that causes of very large thermal shocking and partial portion in use in air, need the good thermal shock resistance of goods and good thermal conductivity, coefficient of thermal expansion is little, thermal conductivity is high and Young's modulus is little because graphite has, and can improve the thermal shock resistance of continuous-casting three-main-product goods; In addition; graphite also has and reduces molten steel and slag to the wetting property of refractory materials; can improve the advantages such as refractory materials erosion-resisting characteristics; the continuous-casting three-main-product fire resistive material product can add graphite to improve its characteristic usually; crystalline flake graphite is incorporated in goods, directly contacts meeting with air when continuous-casting steel-making baking or use oxidation occurs, cause article construction loose; strength decreased affects the problems such as work-ing life and potential safety hazard.for eliminating the problems referred to above, generally adopt antioxidizing paint to smear on continuous-casting three-main-product fire resistive material product surface, coating can form the glaze layer of even compact before graphite oxidation, isolated air prevents the purpose of graphite oxidation, and the coating that therefore is used on the casting apparatus refractory materials is a kind of important anti-oxidation materials, existing for coating and using method on the casting apparatus refractory materials in, a kind of method is to smear before firing, because the weight that the continuous-casting three-main-product fire resistive material product has is very heavy, can cause the coating of product surface to knock in production process, draw, the phenomenon such as touch, if goods are exposed deal with goods when particularly burning till improperly can oxidation and scrap, should burn till goods when burning till and take into account again coating, can increase the consumption of electricity power, reduce production efficiency and burn till space availability ratio, increase problems such as burning till cost, now also do not have a kind of be used to the coating after firing.
Summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this invention is to provide a kind ofly for the coating on the casting apparatus refractory materials and using method, therefore guaranteed the integrity of glaze layer to have improved resistance of oxidation.
For achieving the above object, the technical scheme that the present invention takes is: be used for the coating on the casting apparatus refractory materials, include: according to weight ratio, first group of miscellany is set to include boron glass powder 3% ~ 7%; Quartzy 18% ~ 36%; Flint clay 19% ~ 23%; Potassium felspar sand 26% ~ 49%; Suzhou soil 3% ~ 16%; Carboxymethyl cellulose 0.06% ~ 0.15%; Second group of miscellany is set to include boron glass powder 53% ~ 67%; Potassium felspar sand 21% ~ 31%; Suzhou soil 11% ~ 16%; Carboxymethyl cellulose 0.05% ~ 0.09%.
First group of miscellany is take potassium felspar sand as main raw material, and the potassium felspar sand melting is long interval time, and melt viscosity is high, fusion range is wide is fit to do glaze, Suzhou soil is regulated the state of suspension, and Suzhou soil easily dispersion suspension in water, has good plasticity-and high cohesiveness.Flint clay and quartzy temperature and the scope of adjusting coating formation glaze, carboxymethyl cellulose is done dispersion agent, stablizer, sizing agent etc. makes coating suspension more stable; Second group of miscellany is take the boron glass powder as main raw material, and potassium felspar sand is auxiliary material, and boron glass is the high-efficiency anti-oxidation agent of carbonaceous material, is the main raw material of antioxidizing paint, because the B in boron glass
2O
3Be a kind of glass network former, R is arranged in system
2B during the O component
3+With [BO
4] form exist, play the repairing network.
The present invention has designed, be used for the coating on the casting apparatus refractory materials, according to weight ratio, include: first group of miscellany is set to include boron glass powder 4.5%, quartz 22%, flint clay 21%, potassium felspar sand 35%, Suzhou soil 8%, carboxymethyl cellulose 0.09%; Second group of miscellany is set to include boron glass powder 59%, potassium felspar sand 25%, Suzhou soil 14%, carboxymethyl cellulose 0.06%.
The present invention has designed, be used for the coating on the casting apparatus refractory materials, according to weight ratio, include: first group of miscellany is set to include boron glass powder 6.9%, quartz 19%, flint clay 20%, potassium felspar sand 33%, Suzhou soil 15%, carboxymethyl cellulose 0.11%; Second group of miscellany is set to include boron glass powder 65%, potassium felspar sand 22%, Suzhou soil 14%, carboxymethyl cellulose 0.058%.
the present invention has designed, be used for the using method on the casting apparatus refractory materials: its step: first group of miscellany or second group of miscellany, water and water glass are mixed into mixed solution according to the ratio of weight ratio 1.80-2.21:1:0.56 ~ 0.71, mixed solution is poured in ball mill, grinding is not less than 2 hours and forms the coating mixed solution, the thickness that the coating mixed solution of first group of miscellany is sprayed on for the casting apparatus refractory body is 0.3 ~ 0.5mm, the thickness that the coating mixed solution of second group of miscellany is sprayed on for the casting apparatus refractory body is 0.2 ~ 0.4mm, dry in drying shed, then carry out sintering in retort furnace.
the present invention has designed, be used for the using method on the casting apparatus refractory materials: its step: first group of miscellany, water and water glass are mixed into first group of mixed solution according to the ratio of weight ratio 1.80-2.21:1:0.56 ~ 0.71, first group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, first group of mixed solution removed impurity by 60 purpose screen filtrations, firing temperature be 900 ℃ burnt till be used for the casting apparatus refractory body, cooling to 140 ℃ of left and right comes out of the stove, after blowing away surperficial floating dust, evenly spraying is through first group of mixed solution of filtration, coating thickness is 0.3 ~ 0.5mm, in being the drying shed of 110 ℃ ~ 130 ℃, temperature dries, coating parches and guarantees that simultaneously goods are in drying shed temperature-stable for some time, second group of miscellany, water and water glass are mixed into second group of mixed solution according to the ratio of weight ratio 1.80-2.21:1:0.56 ~ 0.71, second group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, second group of mixed solution removed impurity by 60 purpose screen filtrations, be coated with first group of mixed solution be used for evenly spray again second group of mixed solution on the casting apparatus refractory body, thickness is 0.2 ~ 0.4mm, gets final product after parching, in retort furnace, be to carry out the aerobic sintering in 1280 ℃ in temperature.
Owing to having designed first group of miscellany and second group of miscellany, being used for having formed two-layer glaze layer on the casting apparatus refractory body, spray after refractory body burns till in casting apparatus, therefore guaranteed the integrity of glaze layer, improved resistance of oxidation.
In the technical program, be used for the casting apparatus refractory body and refer to that the continuous-casting three-main-product fire resistive material product is stopper, submerged nozzle, long nozzle.
Description of drawings
Fig. 1 is the schematic diagram of product appearance of the present invention.
Embodiment
First embodiment of the present invention, be used for the coating on the casting apparatus refractory materials, according to weight ratio, include: first group of miscellany is set to include boron glass powder 3%, quartz 18%, flint clay 19%, potassium felspar sand 26%, Suzhou soil 3%, carboxymethyl cellulose 0.06%; Second group of miscellany is set to include boron glass powder 53%, potassium felspar sand 21%, Suzhou soil 11%, carboxymethyl cellulose 0.05%.
In the present embodiment, the boron glass powder refers to 39%～41% potassium felspar sand and melting in the smelting furnace of 900 ℃～1000 ℃ of left and right after 59%～61% borax powder mixes are flowed in cooling pool, becomes vitreous solid after cooling, is boron glass.
In the present embodiment, quartz refers to that main component is silicon-dioxide, the inorganic mineral that often contains a small amount of impurity component such as Al2O3, Fe2O3 etc.
In the present embodiment, flint clay refers to contain content greater than the hard fireclay of 38% Al2O3.
In the present embodiment, potassium felspar sand refers to contain the aluminium silicate mineral of the basic metal such as potassium, sodium, calcium or alkaline-earth metal.
In the present embodiment, Suzhou soil refers to the remaining type of middle low temperature hot liquid alteration
Kaolin.
In the present embodiment, carboxymethyl cellulose refers to cellulosic carboxymethyl group substitution product.
be used for the using method on the casting apparatus refractory materials, its step: first group of miscellany, water and water glass are mixed into first group of mixed solution according to the ratio of weight ratio 1.80:1:0.56, first group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, first group of mixed solution removed impurity by 60 purpose screen filtrations, firing temperature be 900 ℃ burnt till be used for the casting apparatus refractory body, cooling to 140 ℃ of left and right comes out of the stove, after blowing away surperficial floating dust, evenly spraying is through first group of mixed solution of filtration, coating thickness is 0.3 ~ 0.5mm, in being the drying shed of 110 ℃ ~ 130 ℃, temperature dries, coating parches and guarantees that simultaneously goods are in drying shed temperature-stable for some time, second group of miscellany, water and water glass are mixed into second group of mixed solution according to the ratio of weight ratio 1.80:1:0.56, second group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, second group of mixed solution removed impurity by 60 purpose screen filtrations, be coated with first group of mixed solution be used for evenly spray again second group of mixed solution on the casting apparatus refractory body, thickness is 0.2 ~ 0.4mm, gets final product after parching, in retort furnace, be to carry out the aerobic sintering in 1280 ℃ in temperature.
In the present embodiment, be the retort furnace of 1300 ℃ with top temperature, in independent every layer of sintering process, first group of mixed solution forms duricrust at 370 ℃, temperature is raised to 780 ℃ of first group of mixed solutions and begins melting, forms the glaze layer of uniform spreading at 1180 ℃ of first group of mixed solutions, at 1280 ℃ of glaze formable layers; Second group of mixed solution forms duricrust at 350 ℃, and temperature is raised to 640 ℃ of second group of mixed solutions and begins melting, forms the glaze layer of uniform spreading at 800 ℃ of second group of mixed solutions, at 1000 ℃ of glaze formable layers; Be used for casting apparatus refractory materials surface and form the glassy transparent glaze layer of thick 0.58mm even compact, the glaze layer is combined closely with being used for the casting apparatus refractory body, is used for the phenomenon that the casting apparatus refractory body does not have oxidation.
The present invention uses the antioxidizing paint at the continuous-casting three-main-product fire resistive material product, can be used on the mean thermal expansion coefficients of the continuous-casting three-main-product fire resistive material product of graphitiferous amount 8% ~ 30% or continuous-casting three-main-product fire resistive material product 7.8 * 10
-8~ 4.4 * 10
-8, continuous-casting steel-making baking or when using, antioxidizing paint forms the glassy glaze layer of even compact and glaze layer and goods and combines closely, and does not drip glaze crawling phenomenon, and the glaze layer thickness is at 0.4 ~ 0.7mm, extraordinaryly plays anti-oxidation purpose.Be used for smearing again antioxidizing paint after the casting apparatus refractory body has burnt till, antioxidizing paint forms the glaze layer when continuous-casting steel-making baking or use, play anti-oxidation purpose, this method is paid close attention to only and has been burnt till goods, according to the goods proportion design, reducing firing temperature also can burn till goods, when adopting in addition canned air-tight manner burnt product, wedding agent in goods can discharge some gases, form pressure-fired in tank, do not worry the problem of goods oxidation, can also save electricity power, improve and burn till space availability ratio and production efficiency.
Second embodiment of the present invention, be used for the coating on the casting apparatus refractory materials, according to weight ratio, include: first group of miscellany is set to include boron glass powder 7%, quartz 36%, flint clay 23%, potassium felspar sand 49%, Suzhou soil 16%, carboxymethyl cellulose 0.15%; Second group of miscellany is set to include boron glass powder 67%, potassium felspar sand 31%, Suzhou soil 16%, carboxymethyl cellulose 0.09%.
be used for the using method on the casting apparatus refractory materials, its step: first group of miscellany, water and water glass are mixed into first group of mixed solution according to the ratio of weight ratio 2.21:1:0.71, first group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, first group of mixed solution removed impurity by 60 purpose screen filtrations, firing temperature be 900 ℃ burnt till be used for the casting apparatus refractory body, cooling to 140 ℃ of left and right comes out of the stove, after blowing away surperficial floating dust, evenly spraying is through first group of mixed solution of filtration, coating thickness is 0.3 ~ 0.5mm, in being the drying shed of 110 ℃ ~ 130 ℃, temperature dries, coating parches and guarantees that simultaneously goods are in drying shed temperature-stable for some time, second group of miscellany, water and water glass are mixed into second group of mixed solution according to the ratio of weight ratio 2.21:1:0.71, second group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, second group of mixed solution removed impurity by 60 purpose screen filtrations, be coated with first group of mixed solution be used for evenly spray again second group of mixed solution on the casting apparatus refractory body, thickness is 0.2 ~ 0.4mm, gets final product after parching, in retort furnace, be to carry out the aerobic sintering in 1280 ℃ in temperature.
The 3rd embodiment of the present invention, be used for the coating on the casting apparatus refractory materials, according to weight ratio, include: first group of miscellany is set to include boron glass powder 5%, quartz 27%, flint clay 21%, potassium felspar sand 37%, Suzhou soil 10%, carboxymethyl cellulose 0.10%; Second group of miscellany is set to include boron glass powder 60%, potassium felspar sand 26%, Suzhou soil 14%, carboxymethyl cellulose 0.07%.
be used for the using method on the casting apparatus refractory materials, its step: first group of miscellany, water and water glass are mixed into first group of mixed solution according to the ratio of weight ratio 2.00:1:0.64, first group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, first group of mixed solution removed impurity by 60 purpose screen filtrations, firing temperature be 900 ℃ burnt till be used for the casting apparatus refractory body, cooling to 140 ℃ of left and right comes out of the stove, after blowing away surperficial floating dust, evenly spraying is through first group of mixed solution of filtration, coating thickness is 0.3 ~ 0.5mm, in being the drying shed of 110 ℃ ~ 130 ℃, temperature dries, coating parches and guarantees that simultaneously goods are in drying shed temperature-stable for some time, second group of miscellany, water and water glass are mixed into second group of mixed solution according to the ratio of weight ratio 2.00:1:0.64, second group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, second group of mixed solution removed impurity by 60 purpose screen filtrations, be coated with first group of mixed solution be used for evenly spray again second group of mixed solution on the casting apparatus refractory body, thickness is 0.2 ~ 0.4mm, gets final product after parching, in retort furnace, be to carry out the aerobic sintering in 1280 ℃ in temperature.
The 4th embodiment of the present invention, be used for the coating on the casting apparatus refractory materials, according to weight ratio, include: first group of miscellany is set to include boron glass powder 4.5%, quartz 22%, flint clay 21%, potassium felspar sand 35%, Suzhou soil 8%, carboxymethyl cellulose 0.09%; Second group of miscellany is set to include boron glass powder 59%, potassium felspar sand 25%, Suzhou soil 14%, carboxymethyl cellulose 0.06%.
be used for the using method on the casting apparatus refractory materials, its step: first group of miscellany, water and water glass are mixed into first group of mixed solution according to the ratio of weight ratio 1.89:1:0.59, first group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, first group of mixed solution removed impurity by 60 purpose screen filtrations, firing temperature be 900 ℃ burnt till be used for the casting apparatus refractory body, cooling to 140 ℃ of left and right comes out of the stove, after blowing away surperficial floating dust, evenly spraying is through first group of mixed solution of filtration, coating thickness is 0.3 ~ 0.5mm, in being the drying shed of 110 ℃ ~ 130 ℃, temperature dries, coating parches and guarantees that simultaneously goods are in drying shed temperature-stable for some time, second group of miscellany, water and water glass are mixed into second group of mixed solution according to the ratio of weight ratio 1.88:1:0.62, second group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, second group of mixed solution removed impurity by 60 purpose screen filtrations, be coated with first group of mixed solution be used for evenly spray again second group of mixed solution on the casting apparatus refractory body, thickness is 0.2 ~ 0.4mm, gets final product after parching, in retort furnace, be to carry out the aerobic sintering in 1280 ℃ in temperature.
The 5th embodiment of the present invention, be used for the coating on the casting apparatus refractory materials, according to weight ratio, include: first group of miscellany is set to include boron glass powder 6.9%, quartz 19%, flint clay 20%, potassium felspar sand 33%, Suzhou soil 15%, carboxymethyl cellulose 0.11%; Second group of miscellany is set to include boron glass powder 65%, potassium felspar sand 22%, Suzhou soil 14%, carboxymethyl cellulose 0.058%.
be used for the using method on the casting apparatus refractory materials, its step: first group of miscellany, water and water glass are mixed into first group of mixed solution according to the ratio of weight ratio 2.11:1:0.59, first group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, first group of mixed solution removed impurity by 60 purpose screen filtrations, firing temperature be 900 ℃ burnt till be used for the casting apparatus refractory body, cooling to 140 ℃ of left and right comes out of the stove, after blowing away surperficial floating dust, evenly spraying is through first group of mixed solution of filtration, coating thickness is 0.3 ~ 0.5mm, in being the drying shed of 110 ℃ ~ 130 ℃, temperature dries, coating parches and guarantees that simultaneously goods are in drying shed temperature-stable for some time, second group of miscellany, water and water glass are mixed into second group of mixed solution according to the ratio of weight ratio 2.00:1:0.61, second group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, second group of mixed solution removed impurity by 60 purpose screen filtrations, be coated with first group of mixed solution be used for evenly spray again second group of mixed solution on the casting apparatus refractory body, thickness is 0.2 ~ 0.4mm, gets final product after parching, in retort furnace, be to carry out the aerobic sintering in 1280 ℃ in temperature.
The present invention has lower characteristics:
1, owing to having designed first group of miscellany and second group of miscellany, be used for having formed two-layer glaze layer on the casting apparatus refractory body, spray after refractory body burns till in casting apparatus, therefore guaranteed the integrity of glaze layer, improved resistance of oxidation.
2, owing to having designed first group of miscellany and second group of miscellany, the characteristic of using method composite coating, glaze layer intensity is large.
Above-described embodiment is a kind of way of realization for the coating on the casting apparatus refractory materials and using method provided by the present invention; other distortion according to scheme provided by the present invention; increase or reduce wherein composition or step; the technical field that approaches with the present invention that perhaps the present invention is used for other all belongs to protection scope of the present invention.
Claims (5)
1. coating that is used on the casting apparatus refractory materials; It is characterized in that: include: according to weight ratio, first group of miscellany is set to include boron glass powder 3% ~ 7%; Quartzy 18% ~ 36%; Flint clay 19% ~ 23%; Potassium felspar sand 26% ~ 49%; Suzhou soil 3% ~ 16%; Carboxymethyl cellulose 0.06% ~ 0.15%; Second group of miscellany is set to include boron glass powder 53% ~ 67%; Potassium felspar sand 21% ~ 31%; Suzhou soil 11% ~ 16%; Carboxymethyl cellulose 0.05% ~ 0.09%.
2. according to claim 1 for the coating on the casting apparatus refractory materials; It is characterized in that: according to weight ratio, include: first group of miscellany is set to include boron glass powder 4.5%, quartz 22%, flint clay 21%, potassium felspar sand 35%, Suzhou soil 8%, carboxymethyl cellulose 0.09%; Second group of miscellany is set to include boron glass powder 59%, potassium felspar sand 25%, Suzhou soil 14%, carboxymethyl cellulose 0.06%.
3. according to claim 1 for the coating on the casting apparatus refractory materials; It is characterized in that: according to weight ratio, include: first group of miscellany is set to include boron glass powder 6.9%, quartz 19%, flint clay 20%, potassium felspar sand 33%, Suzhou soil 15%, carboxymethyl cellulose 0.11%; Second group of miscellany is set to include boron glass powder 65%, potassium felspar sand 22%, Suzhou soil 14%, carboxymethyl cellulose 0.058%.
4. according to claim 1 for the coating on the casting apparatus refractory materials, it is characterized in that: be used for the using method on the casting apparatus refractory materials: its step: first group of miscellany or second group of miscellany, water and water glass are mixed into mixed solution according to the ratio of weight ratio 1.80-2.21:1:0.56 ~ 0.71, mixed solution is poured in ball mill, grinding is not less than 2 hours and forms the coating mixed solution, the thickness that the coating mixed solution of first group of miscellany is sprayed on for the casting apparatus refractory body is 0.3 ~ 0.5mm, the thickness that the coating mixed solution of second group of miscellany is sprayed on for the casting apparatus refractory body is 0.2 ~ 0.4mm, dry in drying shed, then carry out sintering in retort furnace.
5. according to claim 4 for the coating on the casting apparatus refractory materials, it is characterized in that: be used for the using method on the casting apparatus refractory materials: its step: first group of miscellany, water and water glass are mixed into first group of mixed solution according to the ratio of weight ratio 1.80-2.21:1:0.56 ~ 0.71, first group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, first group of mixed solution removed impurity by 60 purpose screen filtrations, firing temperature be 900 ℃ burnt till be used for the casting apparatus refractory body, cooling to 140 ℃ of left and right comes out of the stove, after blowing away surperficial floating dust, evenly spraying is through first group of mixed solution of filtration, coating thickness is 0.3 ~ 0.5mm, in being the drying shed of 110 ℃ ~ 130 ℃, temperature dries, coating parches and guarantees that simultaneously goods are in drying shed temperature-stable for some time, second group of miscellany, water and water glass are mixed into second group of mixed solution according to the ratio of weight ratio 1.80-2.21:1:0.56 ~ 0.71, second group of mixed solution poured in ball mill, maintenance ball mill revolution 〉=60 rev/mins, ground 4 hours, second group of mixed solution removed impurity by 60 purpose screen filtrations, be coated with first group of mixed solution be used for evenly spray again second group of mixed solution on the casting apparatus refractory body, thickness is 0.2 ~ 0.4mm, gets final product after parching, in retort furnace, be to carry out the aerobic sintering in 1280 ℃ in temperature.
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| CN110183219A (en) * | 2019-04-30 | 2019-08-30 | 浙江攀盛冶金材料有限公司 | A kind of higher forsterite coating of fire resistance |
| CN112125522A (en) * | 2020-04-23 | 2020-12-25 | 无锡市南方耐材有限公司 | Continuous casting three-piece composite oxidation-resistant erosion-resistant ceramic glaze and preparation method thereof |
| CN112500176A (en) * | 2021-02-05 | 2021-03-16 | 北京利尔高温材料股份有限公司 | Anti-oxidation coating for ladle slag line, coating and preparation method thereof |
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| CN103130521B (en) | 2014-08-13 |
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