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Ceramic glaze and preparation method thereof

A ceramic glaze and mixing technology, applied in the glaze field, can solve the problems of glaze melting temperature and high temperature viscosity, poor grinding effect, incomplete grinding and other problems, so as to improve grinding effect, improve pulverization efficiency, improve The effect of glaze quality

Inactive Publication Date: 2019-05-03
长沙集智创新工业设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the preparation process of existing ceramic glazes, there is a problem of weak fluxing, and it is difficult to fully fuse various mineral raw materials to achieve the purpose of refining, and most fluxes will generate chlorides, alkali metal oxides, etc. during the reaction. The intermediate product is easy to affect the melting temperature and high-temperature viscosity of the glaze; and in the preparation process of the existing ceramic glaze, there is a problem of poor grinding effect, and dross residues often occur due to incomplete mixing and grinding, and then It affects the surface quality of the glaze and the utilization rate of resources; at the same time, in the preparation process of the existing ceramic glaze, the production efficiency of the glaze is often affected by the poor dehydration effect of the dehydration equipment and cumbersome dehydration steps

Method used

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  • Ceramic glaze and preparation method thereof
  • Ceramic glaze and preparation method thereof
  • Ceramic glaze and preparation method thereof

Examples

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Effect test

Embodiment 1

[0030] A kind of ceramic glaze, each raw material is respectively 45% nepheline, 20% kaolin, 15% quartz, 8% modified flux, 7% zinc oxide powder and 5% cassiterite by weight percentage;

[0031] The modified flux is prepared as follows: first, the potassium feldspar is pulverized, ground and sieved and mixed evenly with boric acid, borax and quicklime powder, wherein the mesh number of the sieve is 200 mesh, and then Introduce it into a muffle furnace for gradient firing and pass in argon as a protective gas, and when the temperature is raised to 60 degrees, it is kept for 60 seconds, and when the temperature is raised to 100 degrees, it is kept for 45 seconds, and when the temperature is raised to 145 degrees, Hold for 30 seconds, and when the temperature rises to 450°C, hold for 15 seconds, and finally control the temperature at 850°C and keep it warm for 5 minutes, then cool and stand still to obtain a modified flux.

[0032] Wherein, each raw material in the modified flux i...

Embodiment 2

[0040] A kind of ceramic glaze, with embodiment 1.

[0041] The modified flux is prepared as follows: first, the potassium feldspar is pulverized, ground and sieved and mixed evenly with boric acid, borax and quicklime powder, wherein the mesh number of the sieve is 200 mesh, and then Introduce it into a muffle furnace for gradient firing and pass in argon as a protective gas, and when the temperature is raised to 60 degrees, it is kept for 60 seconds, and when the temperature is raised to 100 degrees, it is kept for 45 seconds, and when the temperature is raised to 145 degrees, Hold for 30 seconds, and when the temperature rises to 450°C, hold for 15 seconds, and finally control the temperature at 850°C and keep it warm for 5 minutes, then cool and stand still to obtain a modified flux.

[0042] Wherein, each raw material in the modified flux is respectively 40% boric acid, 20% borax, 20% potassium feldspar and 20% quicklime powder by weight percentage.

[0043] A method for...

Embodiment 3

[0045] A kind of ceramic glaze, with embodiment 1.

[0046] The modified flux is prepared as follows: Same as Example 1.

[0047] Wherein, each raw material in the modified flux is as follows by weight percentage: the same as in Example 1.

[0048] A preparation method for ceramic glaze, comprising the following steps:

[0049] 1) Grinding and sieving treatment: firstly import nepheline, quartz and cassiterite into a ball mill after weighing and ball milling for 60 minutes, export them, and sieve through a 40-mesh sieve to obtain a mixture A, And the ball milling medium in the ball mill is a ceramic ball, and the ball milling speed in the ball mill is controlled at 35% of the critical speed;

[0050] 2) Firing treatment: first mix the modified flux and zinc oxide powder with the mixture A evenly, then introduce it into the pool furnace for two firings and pass in argon as a protective gas, and the first firing The firing time is controlled at 3.5 hours, the firing temperatu...

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Abstract

The invention discloses a ceramic glaze and a preparation method thereof. The ceramic glaze comprises the following raw materials in percentage by weight: 35-55% of nepheline, 15-25% of kaolin, 10-20%of quartz, 6-10% of modified flux, 5-9% of zinc oxide powder and 3-7% of cassiterite; the borax in the modified flux is heated to produce molten transparent glassy borax, making it easier to melt allkinds of heavy metal oxides, and sodium oxide produced in the reaction process of borax is combined with boric acid, and the boron glass is formed after heating treatment, at the same time, the boricacid reacts fully with the quicklime powder and forms calcium silicate crystal, while neither boron glass nor calcium silicate crystal can affect the flux effect and can be easily removed, it not only reduces the influence of effective intermediate products in the reaction process, but also further improves the fluxing and bonding properties. In the presence of excessive sodium oxide, it will affect the melting temperature and high temperature viscosity of the glaze, and then remove the sodium oxide to improve the quality of the glaze.

Description

technical field [0001] The invention relates to the technical field of glazes, in particular to a ceramic glaze and a preparation method thereof. Background technique [0002] Glaze is a thin glassy layer attached to the surface of a ceramic body. It is usually mixed with mineral raw materials and chemical raw materials according to a certain ratio and finely ground into a slurry liquid, sprayed on the surface of the green body, and then calcined at high temperature. It has physical properties and chemical properties similar to the glass state, and can improve the mechanical strength, thermal stability and chemical stability of the product, and the glaze surface can also be decorated with various patterns and patterns to enhance the artistic effect and quality of the product. contagious. [0003] However, in the preparation process of the existing ceramic glaze, there is a problem of weak fluxing, and it is difficult to fully fuse various mineral raw materials to achieve t...

Claims

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Application Information

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IPC IPC(8): C03C8/14
Inventor 孙盼盼
Owner 长沙集智创新工业设计有限公司
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