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A ceramic glaze and anti-oxidation technology, which is applied in the field of inorganic non-metallic materials for metallurgical continuous casting, can solve the problems of unable to protect the three major pieces of refractory continuous casting, unable to generate liquid phase and glass phase glaze, etc., to achieve good adhesion Effects, easy usage, good antioxidant effect
Pending Publication Date: 2020-12-25
无锡市南方耐材有限公司
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[0004] At present, the three major parts of continuous casting (long nozzle, plug rod, and submerged nozzle) are sprayed with a layer of glaze on the surface to protect the refractory brick body. After many investigations, most manufacturers in China use inorganic binders. In fact, it is just a kind of inorganic coating, which cannot form liquid phase and glass phase to form glaze at high temperature and cannot protect the body effect of the three major parts of refractory continuous casting (long nozzle, stopper rod, and submerged nozzle).
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[0027] The present invention will be further described below in combination with specific embodiments.
[0028] The composite anti-oxidation and anti-corrosion ceramic glaze for three continuous casting pieces contains the following components by weight percentage: 18%-20% of quartz powder, 21%-27% of potassium feldspar, and 5%-8% of Suzhou soil , barium carbonate 0%~3%, boron glass powder 8%~12%, pyrophyllite 8%~10%, zinc oxide 0%~3%, borax 5%~7%, magnesia 0%~2%, chromium oxide Green 0%~3%, cobalt blue powder 0%~3%, iron red powder 0%~3%, diopside 0%~5%, frit 0%~15%, wollastonite 0%~5%, Lead oxide 0%-2%, calcite 0%-5%, sodium humate 0%-0.2%, binder 0%-20%, silica sol 0%-8%, styrene-acrylic emulsion 0%-2% and water 20% to 25%.
[0029] Among them, the role of calcite in the glaze body:
[0030] 1. Before decomposing, it acts as a barren material in the green body.
[0031] 2. After heating and decomposing, it acts as a flux, and reacts with clay and quartz in the green bod...
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Abstract
The invention discloses a continuous casting three-piece composite oxidation-resistant erosion-resistant ceramic glaze which comprises the following components in percentage by weight: 18%-20% of quartz powder, 21%-27% of potassium feldspar, 5%-8% of Suzhou clay, 0%-3% of barium carbonate, 8%-12% of boron glass powder, 8%-10% of pyrophyllite, 0%-3% of zinc oxide, 5%-7% of borax, 0%-2% of magnesia,0%-3% of chromium oxide green, 0%-3% of cobalt blue powder, 0%-3% of iron oxide red powder, 0%-5% of diopside, 0%-15% of frit, 0%-5% of wollastonite, 0%-2% of lead oxide, 0%-5% of calcite, 0%-0.2% ofsodium humate, 0%-2% of a binder, 0%-8% ofsilica sol, 0%-2% of styrene-acrylic emulsion and 20%-25% of water. The ceramic glaze has the beneficial effects of no pollution to the environment, good oxidation resistance, wear resistance, good adhesion effect and capability of effectively prolonging the service life of the continuous casting three-piece of the sprayed product.
Description
technical field [0001] The invention relates to the field of inorganic non-metallic materials for metallurgical continuous casting, and more specifically relates to a composite anti-oxidation and corrosion-resistant ceramic glaze for three continuous castings and a preparation method thereof. Background technique [0002] With the harsh conditions for the use of ladle refractory materials in the metallurgical industry, users require higher and higher quality and service life, especially; continuous casting refractory materials are contracted by ton of steel, and only high-life refractory materials have good profit margins, such as continuous casting three Large pieces (long nozzles, stopper rods, submerged nozzles) because the bricks contain about 15% C, during the baking process of the new package, at a high temperature with oxygen, when the temperature is greater than 480 ° C, redox reactions occur between C and oxygen CO2 is generated and carbon is lost, and the higher th...
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