Ceramic product with high cold resistance and high heat resistance and preparation process thereof

Abstract

The invention relates to the technical field of ceramic preparation, in particular to a ceramic product with high cold resistance and high heat resistance and a preparation process thereof. The ceramic product comprises a blank body, a heat insulation layer and a glaze material, wherein the blank body is prepared from 42 parts of olivinite, 8 parts of sodium lignin sulfonate, 13 parts of quartz, 15 parts of clay, 26 parts of molybdenite, 15 parts of melting aids, 20 parts of spodumene, 13 parts of mullite, 11 parts of sodium feldspar and 9 parts of calcium metasilicate; the heat insulation layer is prepared from 22 parts of glass fiber powder, 15 parts of rock wool powder, 9 parts of sodium silicate and 3 parts of sodium hexametaphosphate; the glaze material is prepared from 23 parts of mullite, 35 parts of Kaolin, 15 parts of spodumene, 17 parts of potash feldspar and 7 parts of clay. The preparation process comprises the following steps of proportioning, blank pulling, biscuiting, heat insulation layer coating, glazing and firing. The ceramic product produced by the process has the advantages of high mechanical intensity and strong thermal shock resistant performance.

Description

technical field [0001] The invention relates to the technical field of ceramic preparation, in particular to a ceramic product with strong cold resistance and heat resistance and a preparation process thereof. Background technique [0002] Ceramic industry is one of the oldest industries in our country, which can be traced back to 8000 years ago. As far back as the Tang and Song Dynasties, ceramic preparation technology was relatively mature, and a certain scale of production had been formed. Among them, the products of the five famous kilns in the Song Dynasty were even more famous all over the world, and ceramics began to be sold overseas in batches as commodities. At present, daily-use ceramics are still the most important export products of light industry. Taking Shenzhen as an example, there are a total of 14 ceramic companies that can export daily-use ceramic products to Europe, with a rate value of about 20 million US dollars. Although the export volume of such comm...

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Problems solved by technology

Based on this, even if the quality of porcelain is excellent, the deformation of ceramic products will be large, the glaze surface will not be smooth, and the thermal stability will be significantly reduced on the basis of improving whiteness.

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