Composition for preparing matte white glaze, and firing method of matte white glaze

A composition and technology of white glaze, applied in the field of ceramic glaze preparation, can solve the problems of high fluidity of glaze, many bubbles on the glaze surface, easy cracking texture and the like, and achieve the effects of reducing dosage, fine texture and improving bonding performance

Inactive Publication Date: 2020-06-26
JINGDEZHEN CERAMIC INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome defects such as high fluidity of the glaze, many bubbles on the glaze surface, easy cracking and poor texture when the slag powder in the prior art is used to prepare ceramic glazes, thereby providing a Composition for preparing matte white glaze and firing method of matte white glaze

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  • Composition for preparing matte white glaze, and firing method of matte white glaze
  • Composition for preparing matte white glaze, and firing method of matte white glaze

Examples

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Embodiment 1

[0033] This embodiment provides a composition for preparing matte white glaze and a firing method for matte white glaze. The composition includes 4kg slag powder, 1kg kaolin, 1kg calcined kaolin, 0.5kg talc, 2.7kg potassium feldspar, 1kg of quartz and 0.3kg of zirconium silicate; the mesh number of calcined kaolin is 1250 mesh, and the mesh number of slag powder is 200 mesh.

[0034] The firing method of the matte white glaze includes the following steps:

[0035] 2kg of kaolin was heated from 25°C to 1000°C at a heating rate of 3.33°C / min, then kept at this temperature for 30 minutes, cooled to room temperature naturally, and crushed to 1250 mesh fine particle powder to obtain 1kg of calcined kaolin for future use;

[0036] Mix slag powder, kaolin, calcined kaolin, talc, potassium feldspar, quartz, zirconium silicate and water, the mass ratio of the composition to water is 1:1.2, and then put all the raw materials into a ball mill jar for rapid ball milling, ball milling 8h,...

Embodiment 2

[0040] This example provides a composition for preparing matte white glaze and a firing method for matte white glaze. The composition includes 4.2kg of slag powder, 1.0kg of kaolin, 1.0kg of calcined kaolin, 0.5kg of talc, 2.5kg of potassium Stone, 1.0kg of quartz and 0.3kg of zirconium silicate; the mesh number of calcined kaolin is 800 mesh, and the mesh number of slag powder is 200 mesh.

[0041] The firing method of matte white glaze includes the following steps:

[0042] 2kg of kaolin was heated from 26°C to 1000°C at a heating rate of 3.33°C / min, then kept at this temperature for 30 minutes, cooled to room temperature naturally, and crushed to 800-mesh fine particle powder to obtain 1kg of calcined kaolin;

[0043] Mix slag powder, kaolin, calcined kaolin, talc, potassium feldspar, quartz, zirconium silicate and water, the mass ratio of the composition to water is 1:1.2, and then put all the raw materials into a ball mill jar for rapid ball milling, ball milling 10h, th...

Embodiment 3

[0047] This embodiment provides a composition for preparing matte white glaze and a firing method for matte white glaze. The composition includes 4.5kg of slag powder, 1.0kg of kaolin, 1.0kg of calcined kaolin, 0.5kg of talc, 2.5kg of potassium Stone, 1.0kg of quartz and 0.3kg of zirconium silicate; the mesh number of calcined kaolin is 1000 mesh, and the mesh number of slag powder is 300 mesh.

[0048] The firing method of matte white glaze includes the following steps:

[0049] 2kg of kaolin is heated from normal temperature to 1000°C at a heating rate of 3.33°C / min, then kept at this temperature for 30 minutes, cooled to room temperature naturally, and crushed to 800 mesh fine particle powder to obtain 1kg of calcined kaolin for future use;

[0050] Mix slag powder, kaolin, calcined kaolin, talc, potassium feldspar, quartz, zirconium silicate and water, the mass ratio of the composition to water is 1:1.2, and then put all the raw materials into a ball mill jar for rapid bal...

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Abstract

The invention belongs to the technical field of ceramic glaze preparation, and particularly relates to a composition for preparing matte white glaze, and a firing method of the matte white glaze. According to the matte white glaze provided by the invention, slag powder, calcined kaolin and talc are matched for use, so that the problem that bubbles are generated on the glaze due to the fact that alarge amount of gas is released in the slag powder firing process can be avoided, the texture of the glaze is improved, the roughness of the glaze is improved, the thermal expansion coefficient of theglaze is adjusted, and the problem that the glaze cracks due to the fact that a large amount of slag powder is added into the glaze is reduced; the slag powder has high fluidity under a high-temperature firing condition, and the calcined kaolin and the talc are matched for use, so that bubbles generated on the glaze surface can be inhibited while the problem of high fluidity of the slag powder ata high temperature is controlled, the glaze surface is smooth, and the glaze surface texture is improved; and a large amount of slag powder can be utilized to realize recycling of the slag powder, and environmental pollution and resource waste can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of ceramic glaze preparation, and in particular relates to a composition for preparing matte white glaze and a firing method for matte white glaze. Background technique [0002] In recent years, the ceramic industry has developed rapidly, and the demand for raw materials is also increasing. As we all know, mineral resources are non-renewable resources. Most ceramic companies are constantly improving the market competitiveness of their products, but high-quality raw materials are decreasing day by day, and the rise in raw material prices directly leads to a substantial increase in production costs. Therefore, developing new raw materials and reducing production costs is a new research direction in the current ceramic industry. Some domestic scholars have tried to add industrial by-products to the preparation of ceramic glazes in order to achieve the purpose of increasing the economic added value of industria...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/00
CPCC03C8/00
Inventor 邹晓雯邹晓松刘彦君曹黎颖程鹏张露
Owner JINGDEZHEN CERAMIC INSTITUTE
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