Nonluminous glaze

A matte glaze and cooked talc technology, which is applied in the field of matte glaze, can solve the problems of high price, unsatisfactory opacity of titanium, etc., and achieve the effects of small loss on ignition, uniform physical and chemical properties, and improved mechanical strength

Inactive Publication Date: 2018-02-23
GUANGXI NANSHAN PORCELAIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing glaze can be made dull by adding 0-15% titanium. Although this kind of glaze has a wide range of firing, the price is high. Adding titanium will have a certain probability of changing other colorless glazes to dark. Brown, and cause the glaze to produce a new texture that people don't like in some cases. In addition, if some products are designed with printed patterns under the glaze, requiring a sharp outline, titanium also causes slightly undesirable opacity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1 prepares matt glaze

[0015] A matte glaze is composed of the following components by weight: 8 parts of frit, 25 parts of cooked talc, 15 parts of aluminum powder, 20 parts of quartz, 15 parts of limestone, 15 parts of zirconium silicate, 8 parts of kaolin, 5 parts of silicon micropowder, 15 parts of potash stone, the mass fraction of silicon dioxide in the quartz is greater than 99.5%, and the mass fraction of iron oxide is less than 0.005%, and the cooked talc is talc powder after high-temperature calcination at 1350°C, The whiteness of the boiled talc is greater than 90 degrees.

[0016] Put the above-mentioned components of the matte glaze into a wet ball mill, and wet ball mill to obtain the matte glaze.

Embodiment 2

[0017] Embodiment 2 prepares matt glaze

[0018] A matte glaze is composed of the following components in parts by weight: 5 parts of frit, 20 parts of cooked talc, 5 parts of aluminum powder, 15 parts of quartz, 5 parts of limestone, 5 parts of zirconium silicate, 5 parts of kaolin, 3 parts of silicon micropowder, 10 parts of potassium stone, the mass fraction of silicon dioxide in the quartz is greater than 99.5%, and the mass fraction of iron oxide is less than 0.005%, and the cooked talc is talc powder after high-temperature calcination at 1320 ° C. The whiteness of the boiled talc is greater than 90 degrees.

[0019] Put the above-mentioned components of the matte glaze into a wet ball mill, and wet ball mill to obtain the matte glaze.

Embodiment 3

[0020] Embodiment 3 prepares matt glaze

[0021] A matte glaze is composed of the following components by weight: 6 parts of frit, 23 parts of cooked talc, 10 parts of aluminum powder, 18 parts of quartz, 10 parts of limestone, 10 parts of zirconium silicate, 6 parts of kaolin, 4 parts of silicon micropowder, 13 parts of potassium stone, the mass fraction of silicon dioxide in the quartz is greater than 99.5%, and the mass fraction of iron oxide is less than 0.005%, and the cooked talc is talc powder after high-temperature calcination at 1330°C, The whiteness of the boiled talc is greater than 90 degrees.

[0022] Put the above-mentioned components of the matte glaze into a wet ball mill, and wet ball mill to obtain the matte glaze.

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Abstract

The invention relates to nonluminous glaze. The nonluminous glaze is prepared by adding a proper amount of aluminum powder into slaked talc, quartz and feldspar to generate metal aluminum oxide without glossiness, so that the production cost of the nonluminous glaze can be effectively reduced; the added slaked talc is subjected to high-temperature calcination, so the impurity content is low, the loss on ignition is small and new grain which people do not like is avoided; a proper amount of silicon micropowder is added into the nonluminous glaze, the temperature resistance and the acid and alkali resistance of the glaze layer can be improved and the effect of improving the mechanical strength of the glaze layer is achieved; and the nonluminous glaze is obtained by performing wet ball milling by a wet ball mill, the raw materials for forming the nonluminous glaze are stirred and mixed uniformly, slurry with the physical and chemical properties tending to be uniform and consistent can beobtained, and glazing is fertilized.

Description

technical field [0001] The invention relates to the technical field of porcelain production, in particular to a dull glaze. Background technique [0002] Glaze is a thin, colorless or colored glassy layer covering the surface of a ceramic product. It is made by mixing mineral raw materials such as feldspar, quartz, talc, kaolin and chemical raw materials in a certain proportion, grinding them into glaze slurry, applying them on the surface of the green body, and calcining at a certain temperature. It has the characteristics of increasing the mechanical strength, thermal stability and dielectric strength of the product, as well as beautifying the utensils, being easy to wipe and clean, and not being corroded by dust and filth. [0003] The ceramic industry can be roughly divided into the following types of lead glaze and lead-free glaze according to the product category and use; raw glaze and frit glaze, ceramic tile, tableware, sanitary ceramics and glaze for electric porce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/18
CPCC03C8/18
Inventor 龚镇飞杨家森杜国湘覃克灿刘明灿刘明海
Owner GUANGXI NANSHAN PORCELAIN
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