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Fast-fired composite-phase microcrystal matt surface glaze slip and application thereof

A technology of smooth glaze and glaze slurry, which is applied in the field of glaze on ceramic surfaces, and can solve problems such as matte, strong refractive index of glazed light, and insufficient fineness

Inactive Publication Date: 2012-06-13
GEAREX TECHN CERAMIC KUSN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In microcrystalline glazes, the volume distribution of crystal phases generally only reaches 20-30%, at most 40-50%, and the volume distribution of crystals in microcrystalline glazes is less. High (glossiness > 18) not delicate enough, matte

Method used

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  • Fast-fired composite-phase microcrystal matt surface glaze slip and application thereof
  • Fast-fired composite-phase microcrystal matt surface glaze slip and application thereof
  • Fast-fired composite-phase microcrystal matt surface glaze slip and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Preparation of high temperature zirconium white matt frit:

[0042] (1) According to the following weight percentages, each raw material is pulverized into 200-250 mesh particles respectively, and then mixed;

[0043]

[0044] (2) The mixture in step (1) was fired at 1570° C. for 2 hours to obtain a glassy molten slurry, which was quenched in water to obtain the high-temperature zirconium white matte frit; wherein, the weight percentage of each component is:

[0045] Mg: 6, Ca: 15, Al: 12.3, Si: 58, K: 0.5, Na: 0.2, Zr: 6.5, B: 1.0, Zn: 0.5;

[0046] Preparation of high temperature transparent matt frit:

[0047] (1) According to the following weight percentages, each raw material is pulverized into 200-250 mesh particles respectively, and then mixed;

[0048]

[0049] (2) The mixture in step (1) is fired at 1560-1580°C for 1.5-2 hours to obtain a glassy molten slurry, which is water-quenched to obtain the high-temperature transparent matte frit, wherein each co...

Embodiment 2

[0052] Described raw material mixture is made up of the component of following percentage by weight:

[0053]

[0054]

[0055] The high-temperature transparent matt frit was prepared by the method in Example 1.

[0056] The concrete steps that above-mentioned mixture is prepared into glaze slurry are:

[0057] Put the raw material mixture into the ball mill tank according to the usage amount, and then add water, sodium methylcellulose and sodium tripolyphosphate. The ratio of parts by weight of material mixture, sodium methylcellulose, sodium tripolyphosphate and water is:

[0058]

[0059] Ball milling to a particle size of 300-325 meshes to obtain a fast-firing multi-phase microcrystalline matte glaze glaze slurry; the specific steps for turning the glaze slurry into a multi-phase microcrystalline matte glaze are:

[0060] Apply the glaze slurry to the base glazed body, and then sinter it in a high-temperature gas roller kiln at 1195°C for a period of 50 minutes....

Embodiment 3

[0064] Customers who are using this product: Jiangxi Sun Ceramics and Mengtexiang Ceramics

[0065] Described raw material mixture is made up of the component of following percentage by weight:

[0066]

[0067]The high-temperature zirconium white matt frit and the high-temperature transparent matt frit were prepared by the preparation method in Example 1. The concrete steps that above-mentioned mixture is prepared into glaze slurry are:

[0068] Put the raw material mixture into the ball mill tank according to the usage amount, and then add water, sodium methylcellulose and sodium tripolyphosphate. The ratio of parts by weight of material mixture, sodium methylcellulose, sodium tripolyphosphate and water is:

[0069]

[0070]

[0071] Ball milling to a particle size of 300-325 meshes to obtain a fast-firing multi-phase microcrystalline matte glaze glaze slurry; the specific steps for turning the glaze slurry into a multi-phase microcrystalline matte glaze are:

[...

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Abstract

The invention discloses a fast-fired composite-phase microcrystal matt surface glaze slip and an application thereof. The matt surface glaze slip comprises material mixture, sodium methyl cellulose, sodium tripolyphosphate and water, wherein the material mixture comprises the following components in percentage by weight: 34-39% of nepheline syenite, 8- 9% of clay, 0-5% of zirconium silicate, 0- 2.8% of aluminium oxide, 1.5-2.5% of soda feldspar, 0-47% of high-temperature zirconium white matte fused block, and 5-50% of high-temperature transparent matte fused block. An electron microscope for a polarized light research is adopted to analyze and detect the composite-phase matt glaze, and the crystal phase volume distribution reaches more than 95%. The product which is prepared from the fast-fired composite-phase microcrystal matt surface glaze slip, has weak glaze light refraction, low and fine glossiness (glossiness smaller than 10), and is unglazed.

Description

technical field [0001] The present invention relates to a glaze for ceramic surfaces. Background technique [0002] In recent years, the ceramic industry has entered a stage of rapid development and continuous technological innovation. Experts in the industry have introduced the concept technology of glass-ceramics into ceramic glazes for product technology innovation, so as to obtain microcrystalline matte ceramic surface glazes with the same texture. Especially for fast-firing architectural ceramic glazes, it is of great significance if an appropriate material formula can be selected so that self-generated uniform crystallization (microcrystals) can occur during the fast-firing process. [0003] In microcrystalline glazes, the volume distribution of crystal phases generally only reaches 20-30%, at most 40-50%, and the volume distribution of crystals in microcrystalline glazes is less. High (glossiness > 18) not delicate enough, matte. Unlike glass-ceramics where the v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/86
Inventor 蔡国桢杜文男
Owner GEAREX TECHN CERAMIC KUSN
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