High-strength electric-porcelain ash glaze formula and its preparation method

Abstract

The invention relates to a high-strength electrotechnical porcelain ash glaze formulation which comprises white glaze base materials and coloring materials with mass of 15 to 35% of that of the white glaze base materials, wherein the white glaze base material comprises the following components in parts by weight: 23 to 27 parts of potassium feldspar, 25 to 29 parts of quartz, 8 to 15 parts of Xinhui powder, 4 to 9 parts of washed kaolin, 5 to 8 parts of Xingzi kaolin, 8 to 15 parts of talc, 4 to 7 parts of limestone, 3 to 8 parts of Zuoyun earth, 2 to 6 parts of zirconium silicate, and 5 to 15 parts of alumina. The preparation method comprises the following steps of: roasting three colorant raw materials at a high temperature firstly; grinding finely; and then milling in a wet way along with white glaze based on the ratio until the size fineness reaches to 325 meshes; and finally sieving to residue of 4 to 6%. The electrotechnical porcelain ash glaze prepared based on the formulation is suitable for various porcelain blank bodies, and can be coated to form a good intermediate layer which can be combined with the porcelain body well, thus, the mechanical performance of the porcelain can be greatly improved, and the bending strength of the porcelain can be increased by more than 30%; and meanwhile, the glazed surface of a porcelain component is smooth, the color is white gray and clear, and the surface has no defect, and the market demand can be met.

Description

technical field [0001] The invention relates to an electric porcelain gray glaze formula and a preparation method thereof, in particular to a high-strength electric porcelain gray glaze formula and a preparation method thereof, belonging to the technical field of electric porcelain product formula and production methods. Background technique [0002] Electric enamel is a smooth substance on the surface of a porcelain insulator. The thickness of the glass layer is about 0.2-0.3mm. The microstructure analysis of the glaze indicates that there are still a small amount of fine grains and bubbles in the continuous, glassy glaze. . [0003] With the development of the electricity market and the expansion of the application range of electric porcelain products, according to the actual needs of different customers, the varieties of electric porcelain products are also diversified, including requirements for the appearance and color of porcelain parts. The color of electric porcelai...

AI Technical Summary

Problems solved by technology

Traditional electric enamel, after glazing, does not have a good effect on improving the mechanical, electrical and thermal properties of electric porcelain, especially it cannot greatly improve the bending strength of porcelain

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