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A kind of crystalline glaze for sanitary ceramic sanitary ware and its preparation process

A technology for sanitary ceramics and preparation process, applied in the field of crystalline glaze for sanitary ware and its preparation technology, can solve the problems of narrow crystallization range of crystalline glaze, harsh firing conditions, etc., and achieves reduction of firing cost, control of production cost, Actionable effect

Active Publication Date: 2016-03-02
GUANGDONG DOWSTONE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The crystallization range of crystalline glaze is very narrow, and the firing conditions are harsh. It is necessary to strictly control the firing heating rate and holding time, that is, the requirements for mastering the firing curve are very strict. For example, the firing temperature of traditional crystalline glaze generally reaches 1350°C. The firing cycle is 14-16 hours

Method used

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  • A kind of crystalline glaze for sanitary ceramic sanitary ware and its preparation process
  • A kind of crystalline glaze for sanitary ceramic sanitary ware and its preparation process

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preparation example Construction

[0034] A preparation process of crystalline glaze for sanitary ceramic sanitary ware, comprising the following steps:

[0035] (5) Preparation of crystal-based glaze: mix the raw materials of crystal-based glaze, add binder and debonding agent, add water, ball mill into glaze slurry, and obtain crystal-based glaze;

[0036] (6) Preparation of the crystallization agent: mixing the raw materials of the crystallization agent, firing into a frit, breaking the frit, adding a binding agent and a debonding agent, adding water, ball milling into a glaze slurry, and obtaining a crystallization agent;

[0037] (7) Glazing: apply the crystalline base glaze to the surface of the sanitary ceramic sanitary ware, and then apply the crystallization agent to the crystalline base glaze;

[0038] (8) Firing: firing in a kiln, firing at 1170-1230°C for 13-15 hours, to obtain crystal glaze sanitary ceramic sanitary ware with crystal flower artistic effect;

[0039] The compositions of the crystal...

Embodiment 1

[0051] (1) Preparation of crystalline base glaze

[0052]1) Weigh raw materials of crystalline base glaze: 20 parts of albite, 30 parts of quartz, 30 parts of limestone, 6 parts of kaolin, 25 parts of zinc oxide, and mix well;

[0053] 2) Add 0.25% of the mass of CMC and 0.3% of sodium tripolyphosphate to the raw material, add about 50-70% of water, ball mill into a glaze slurry, control the fineness of the glaze slurry to about 325 mesh, and obtain a crystal suitable for crystal formation. Grown crystalline base glaze.

[0054] (2) Preparation of crystallization agent

[0055] 1) Weigh raw materials of crystallization agent: 20 parts of albite, 30 parts of quartz, 26 parts of titanium dioxide, 15 parts of zinc oxide, 4 parts of potassium nitrate, 7 parts of borax, 5 parts of zirconium silicate, 3 parts of sodium fluorosilicate, Crush and mix;

[0056] 2) Pour the mixed raw materials into the frit furnace, heat it at 1440°C for 2 hours, and fire to obtain the frit;

[0057...

Embodiment 2

[0066] (1) Preparation of crystalline base glaze

[0067] 1) Weigh raw materials of crystalline base glaze: 25 parts of albite, 25 parts of quartz, 26 parts of limestone, 6 parts of kaolin, 24 parts of zinc oxide, 3 parts of cobalt oxide, and mix well;

[0068] 2) Add 0.2% of the mass of CMC and 0.3% of sodium tripolyphosphate to the mixed raw material, add 50-70% of its mass of water, ball mill it into a glaze slurry, control the fineness of the glaze slurry to about 325 mesh, and obtain a suitable Crystallization forms a grown crystalline base glaze.

[0069] (2) Preparation of crystallization agent

[0070] 1) Weigh raw materials of crystallization agent: 25 parts of albite, 30 parts of quartz, 29 parts of titanium dioxide, 10 parts of zinc oxide, 3 parts of potassium nitrate, 9 parts of borax, 7 parts of zirconium silicate, 3 parts of sodium fluorosilicate, 3 parts of cobalt oxide, pulverized and mixed;

[0071] 2) Pour the mixed raw materials into the frit furnace, hea...

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Abstract

The invention discloses a crystal glaze for sanitary ceramic sanitary ware and a preparation process thereof. The present invention starts from the process formula and provides a new type of crystalline glaze meeting the requirements of modern sanitary ceramic sanitary ware products. The crystalline glaze requires fewer types of raw materials and has a wide range of sources, which is beneficial to effectively control production costs. The preparation process of the crystalline glaze for sanitary ceramic sanitary ware of the present invention is simple, the firing temperature of the crystalline glaze is controlled at 1170-1230°C, and the firing cycle is 13-15 hours, which breaks the complicated process and specific firing system of the traditional crystalline glaze, It can be fired at one time, has strong operability, is conducive to energy saving and environmental protection, and reduces firing costs.

Description

technical field [0001] The invention belongs to the technical field of crystalline glaze, and in particular relates to a crystalline glaze for sanitary ceramics and a preparation process thereof. Background technique [0002] Crystalline glaze is a highly decorative artistic glaze, which enjoys a wide reputation for its unique artistic style and is quite favored by consumers. In recent years, many ceramic production areas in my country have successfully carried out trial production of crystalline glazes, and widely tested crystalline glaze decorations on display porcelain, daily utensils, and wall and floor tiles, and achieved gratifying results. However, the development of crystalline glazes for sanitary ware is still rare at present. The main reason is that the sanitary ceramics used as sanitary facilities have complex structures and different thicknesses. The development of crystalline glazes on sanitary ceramics is prone to deformation and deformation after firing. Defe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/86
Inventor 曾青蓉余水林赵秀娟
Owner GUANGDONG DOWSTONE TECH
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