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Glaze slurry for bell coating of sintered ceramic biscuit and preparation method of glaze slurry

A technology for sintering ceramics and glaze slurry, which is applied in the field of ceramics. It can solve the problems of low water absorption rate of high-temperature green body, inability to complete effective glaze application, and glaze slurry cannot be evenly absorbed by the body, so as to achieve high adhesion and uniform glaze thickness , The effect of stable glaze quality

Active Publication Date: 2016-07-27
SHENZHEN YONGFENGYUAN PORCELAIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above technical problems, the present invention discloses a glaze slurry for sintered ceramic bisque bell jars and a preparation method thereof, which solves the problem of extremely high water absorption of high-temperature biscuits when high-temperature biscuit firing and low-temperature glaze firing are used in the ceramic production process. Low, the glaze slurry cannot be evenly absorbed by the body, causing the glaze slurry to accumulate in the low-lying part of the product along the flow, and cannot complete the problem of effective glazing, and because the biscuit firing temperature is much higher than the glaze firing temperature, effectively avoiding the glaze firing When the base glaze reacts violently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A hard porcelain glaze glaze slurry is prepared by the following formula and process:

[0041] First, the preparation of hard porcelain base glaze slurry is carried out. The components and parts by weight of the hard porcelain basic glaze slurry are: 20 parts of feldspar powder, 35 parts of quartz powder, 3 parts of calcite powder, 6 parts of kaolin, 19 parts of lead-free glass frit, 29.85 parts of tap water, water-reducing 0.15 parts of sodium silicate. Put the above components into the wet ball mill for 28 hours to obtain a fineness of D 50 = 5um basic glaze slurry, sieved and set aside.

[0042] The components and parts by weight of the hard porcelain glaze slurry are: 95.7 parts of bone china basic glaze slurry, thickener NH 4 0.15 parts of Cl, 0.65 parts of leveling agent LP3000, 0.3 parts of water reducing agent PC67, 3.2 parts of tap water. The preparation steps of the hard porcelain glaze slurry are as follows: first place the hard porcelain basic glaze slur...

Embodiment 2

[0045] A kind of bone china glaze glaze slurry, prepared by adopting the following formula and process:

[0046] First, the preparation of bone china base glaze slurry is carried out. The components and parts by weight of the bone china basic glaze slurry are: 6 parts of kaolin, 64 parts of lead-free glass frit, 29.9 parts of tap water, and 0.1 part of water-reducing agent American fairy water. Put the above components into the wet ball mill for 24 hours to obtain a fineness of D 50 = 5um basic glaze slurry, sieved and set aside.

[0047] The components and parts by weight of the bone china glaze slurry are: 95.6 parts of the above-mentioned bone china basic glaze slurry, thickener NH 4 0.25 parts of Cl, 0.85 parts of leveling agent LP1000, 0.2 parts of American water-reducing agent, and 3.1 parts of tap water. The preparation steps of the bone china glaze glaze slurry are as follows: first place the bone china basic glaze slurry under a high-speed mixer, turn on the mixer,...

Embodiment 3

[0050] A magnesia strengthened porcelain glaze glaze slurry is prepared by the following formula and process:

[0051] Firstly, the preparation of the basic glaze slurry of magnesium reinforced porcelain is carried out. The magnesia reinforced porcelain base glaze includes components and parts by weight: 7 parts of kaolin, 63 parts of lead-free glass frit, 29.88 parts of tap water, and 0.12 parts of water-reducing agent water glass. Put the above components into the wet ball mill for 24 hours to obtain a fineness of D 50 = 5um basic glaze slurry, sieved and set aside.

[0052] The components and parts by weight of the magnesia reinforced porcelain glaze slurry are as follows: 95.66 parts of the above-mentioned magnesia reinforced porcelain base glaze slurry, thickener NH 4 0.26 parts of Cl, 0.88 parts of leveling agent LP2000, 0.2 parts of water reducing agent PC67, 3 parts of tap water. The preparation steps of the magnesia reinforced porcelain glaze slurry are as follows:...

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Abstract

The invention provides glaze slurry for bell coating of a sintered ceramic biscuit and a preparation method of the glaze slurry. The glaze slurry for bell coating of the sintered ceramic biscuit comprises the following components in percentage by weight: 95-99% of basic glaze slurry, 0.1-1% of a thickener, 0.5-2% of a flatting agent and 0.5-2% of a water reducer. The glaze slurry employing the technical scheme can be directly applied to a low-water absorption ceramic biscuit by a bell coating technology; the characteristic that ordinary glaze slurry cannot evenly coat the low-water absorption ceramic biscuit in a bell coating manner is changed; the glaze slurry with brand-new performance is created; and the glaze slurry can be evenly adhered to the low-water absorption ceramic biscuit.

Description

technical field [0001] The invention belongs to the technical field of ceramics, and in particular relates to a glaze slurry for glazing a sintered ceramic biscuit bell jar and a preparation method thereof. Background technique [0002] Ceramic production has a history of thousands of years. Ceramic production is also an important symbol of the development of Chinese civilization. International and domestic ceramic production techniques have been continuously improved and enriched following the development of the times and science and technology. With the development of technology, the glazing process has appeared and been utilized. But so far, the glazing process is only used in architectural ceramics, that is, it can only be widely used in ceramic wall and floor tiles with smooth surfaces. For daily-use porcelain with a certain unevenness and curvature on the surface, the glazing technology is basically impossible to achieve. In recent years, through technological improv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/14
CPCC03C8/14
Inventor 孟瑞飞刘权辉
Owner SHENZHEN YONGFENGYUAN PORCELAIN
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