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A kind of self-release glaze ceramic and preparation method thereof

A self-releasing glaze and ceramic technology, applied in the production of ceramic materials, clay products, other household appliances, etc., can solve the problems of narrow firing temperature range and easy deformation.

Active Publication Date: 2022-07-12
JINGDEZHEN CERAMIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome defects such as easy deformation and narrow firing temperature range of self-releasing glaze ceramics in the prior art, thereby providing a self-releasing glaze ceramic and its preparation method

Method used

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  • A kind of self-release glaze ceramic and preparation method thereof
  • A kind of self-release glaze ceramic and preparation method thereof
  • A kind of self-release glaze ceramic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047]This embodiment provides a self-releasing glaze ceramic, the raw materials of which include 9.38kg base material, 0.45kg glaze layer accelerator and 0.17kg sodium hydroxide;

[0048] Green body base materials include 1.8kg Guangdong washed mud, 2.1kg Yunnan kaolin, 0.6kg porcelain stone, 0.8kg limestone, 0.5kg black talc, 0.12kg refined white bentonite, 2.58kg quartz, 1.3kg orthoclase, 0.12kg alumina micropowder , 0.08kg zirconia micropowder; among them, the fineness of alumina micropowder and zirconia micropowder are both 0.5-6μm, D90≤6μm;

[0049] The glaze layer accelerator is 0.24kg calcium borosilicate frit and 0.21kg lithium china stone, the fineness is 0.5-3μm, D90≤3μm.

[0050] The preparation method of above-mentioned self-release glaze ceramics, comprises the following steps:

[0051] After mixing the raw materials of the green body base material, adding water and mixing to obtain the ingredients, the mass fraction of the ingredients is 70%, and after 16h ball...

Embodiment 2

[0053] This embodiment provides a self-releasing glaze ceramic, the raw materials of which include 9.45kg of base material, 0.48kg of glaze layer accelerator, 0.04kg of potassium hydroxide and 0.03kg of boric acid;

[0054] Green body base materials include 1.6kg Guangdong washed mud, 2.2kg Yunnan kaolin, 0.8kg porcelain stone, 0.85kg limestone, 0.4kg black talc, 0.11kg white bentonite, 2.7kg quartz, 1.2kg orthoclase, 0.8kg alumina micropowder , 0.06kg zirconia micropowder; among them, the fineness of alumina micropowder and zirconia micropowder are both 0.5-6μm, D90≤6μm;

[0055] The glaze layer accelerator is 0.28kg calcium borosilicate frit and 0.2kg lithium china stone, the fineness is 0.5-3μm, D90≤3μm.

[0056] The preparation method of above-mentioned self-release glaze ceramics comprises the following steps:

[0057] After mixing the raw materials of the green body base material, adding water and mixing to obtain ingredients, the mass fraction of the ingredients is 60%...

Embodiment 3

[0059] This embodiment provides a self-releasing glaze ceramic, the raw materials of which include 9.6kg of base material, 0.32kg of glaze layer accelerator and 0.08kg of sodium hydroxide;

[0060] Green body base materials include 1.65kg Guangdong washed mud, 2.3kg Yunnan kaolin, 0.65kg porcelain stone, 0.8kg limestone, 0.4kg black talc, 0.15kg refined white bentonite, 2.68kg quartz, 1.1kg orthoclase, 0.15kg alumina micropowder , 0.12kg zirconia micropowder; among them, the fineness of alumina micropowder and zirconia micropowder are both 0.5-6μm, D90≤6μm;

[0061] The glaze layer accelerator is 0.23kg calcium borosilicate frit and 0.09kg lithium china stone, the fineness is 0.5-3μm, D90≤3μm.

[0062] The preparation method of above-mentioned self-release glaze ceramics comprises the following steps:

[0063] After mixing the raw materials of the green body base material, adding water and mixing to obtain the ingredients, the mass fraction of the ingredients is 70%, and afte...

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Abstract

The invention belongs to the technical field of ceramic preparation, in particular to a self-release glaze ceramic and a preparation method thereof. The raw materials of the self-releasing glaze ceramics include 92-97 parts of base material, 2-5 parts of glaze layer accelerator and 0.5-2.5 parts of glaze layer activator; At least one of hectorite and hectorite; the fineness of the glaze layer accelerator is 0.5-3 μm, and D90≤3 μm; the glaze layer activator includes at least one of sodium hydroxide, potassium hydroxide and boric acid. Self-releasing glaze ceramics use at least one of sodium hydroxide, potassium hydroxide and boric acid as the glaze layer activator. During the drying process of the green body, it is enriched on the surface of the green body by means of water diffusion to the surface, which promotes the promotion of the glaze layer glass. Phase formation; using at least one of monetite, calcium borosilicate frit, hectorite and hectorite as a glaze layer accelerator can ensure that during the firing process, the alkali-rich liquid phase migrates to the surface of the green body, Promotes the formation of glazing glass phase.

Description

technical field [0001] The invention belongs to the technical field of ceramic preparation, in particular to a self-release glaze ceramic and a preparation method thereof. Background technique [0002] The traditional daily-use ceramic body needs to be glazed, that is, a layer of K is applied to the inner and outer surfaces of the green body or bisque-fired body after molding. 2 O, Na 2 Glazes with high content of basic oxides such as O, CaO, MgO, etc., can be combined together by firing at a certain temperature and melted into a smooth glass glaze layer on the surface of the body, and the degree of production automation is poor. [0003] The self-releasing glazed ceramic body can achieve the effect of smooth and translucent glazed products without glazing. After the body is formed, the glaze-making and glazing processes are not only eliminated, but also the body can release the glaze to cover the surface of the porcelain body during the firing process, which makes it poss...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/13C04B33/24
CPCC04B33/13C04B33/24C04B2235/3208C04B2235/3418C04B2235/3472C04B2235/3217C04B2235/3244C04B2235/365C04B2235/3201C04B2235/3409Y02P40/60
Inventor 刘昆谭灵常启兵包启富周健儿
Owner JINGDEZHEN CERAMIC UNIV
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