Porcelain glaze and glazing method of porcelain

Abstract

The invention relates to porcelain glaze and a glazing method of porcelain at normal temperature. The porcelain glaze comprises the following components in percentage by weight: 45%-55% of potassium feldspar, 3%-10% of MgO, 35%-40% of SiO2 and 5%-12% of Suzhou clay. The glazing method comprises the following steps of: weighing raw materials, and then carrying out ball-milling to obtain glaze slurry; deironing and filtering the glaze slurry to obtain glaze slurry; carrying out glaze spraying on the porcelain at the pressure of 0.06-0.08 MPa, wherein the thickens of a glaze layer is 0.15-0.20 mm; sintering the glazed surface of the porcelain subjected to the glaze spraying at a temperature of 1350-1400 DEG C; and keeping the temperature for 2-2.5 hours. The porcelain glaze disclosed by the invention is not precipitated after prepared into the glaze slurry and has strong adhesive force; according to the glaze disclosed by the invention, the porcelain can be glazed without being heated, the range of sintering temperature is wide, and the sintered glazed surface has uniform vitrification and good glossiness, and therefore, the mechanical strength and the heat stability of the porcelain are enhanced and the product quality is obviously improved.

Description

Technical field [0001] The present invention involves a glazed and porcelain -glazed method, especially a porcelain glaze and porcelain luster. Background technique [0002] According to the requirements of the use of porcelain pieces, many porcelain pieces need to be glazed on the surface. After the porcelain pieces are fired, the appearance is still rough. It is neither beautiful nor good performance., Give the bright and sturdy glass layer, the glaze can be fully educated after firing, making the surface of the product smooth, and the dirt is not easy to adhere to it. [0003] There are many benefits after glazing porcelain, which can prevent moisture and improve the electrical performance of the product.Usually the porcelain shell is [0004] Working in the air environment, and the air contains a certain amount of water, the ceramic shell will reduce its resistance and breakdown intensity after moisture absorption, and increase the medium loss.Improve the surface of the surfa...

AI Technical Summary

Problems solved by technology

[0006] Low, glaze flying and loss of light are prone to occur after the second wave of the glaze surface during metallization and sintering; (2) The mutual adaptability between the glaze and the porcelain body is poor, and it is difficult to form a good glaze surface, that is, the glaze surface and the porcelain body The thermal expansion coefficients are quite different; (3) The viscosity of the molten glaze is not easy to control, which directly affects the fluidity of the glaze. If the viscosity is small, the glaze will flow easily, and if the viscosity is high, it will easily form glaze bubbles; , the porcelain must be heated to 130 degrees to carry out, but it cannot be carried out at room temperature