Zirconium-free ultra-white overglaze and preparation method thereof

A technology of white surface and glaze slurry, which is applied in the field of ceramic tiles, can solve the problem of high cost of ultra-white surface glaze, and achieve the effects of low cost, reduced cost, and small radiation

Inactive Publication Date: 2019-08-16
佛山市玉矶材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a zirconium-free ultra-white surface glaze, a full-polish glaze, and a preparation method f

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A zirconium-free ultra-white surface glaze, comprising the following raw materials in parts by mass: 20 parts of quartz, 1 part of washed kaolin, 5 parts of calcined kaolin, 10 parts of albite, 5 parts of laponite and 5 parts of nepheline.

[0018] A preparation method based on the above-mentioned zirconium-free ultra-white surface glaze, comprising the following steps:

[0019] S1. Ingredients: Weigh the raw materials according to the formula ratio for later use;

[0020] S2. Ball milling: put raw materials into a ball mill, add water to grind, and grind for 4 hours to obtain A glaze slurry. The fineness of A glaze slurry is 0.6, the specific gravity of the glaze slurry is 1.85, and the flow rate of the glaze slurry is 50s;

[0021] S3. Sieving and removing iron: filter the ground glaze slurry through a 160-mesh double-layer sieve, remove the iron tank, and then pump the glaze slurry to the slurry tank to age to obtain a zirconium-free ultra-white surface glaze.

Embodiment 2

[0023] A zirconium-free ultra-white surface glaze, comprising the following raw materials in parts by mass: 45 parts of quartz, 10 parts of calcined talc, 10 parts of washed kaolin, 15 parts of calcined kaolin, 25 parts of potassium feldspar, 25 parts of albite, 35 parts of lithium Porcelain stone, 20 parts nepheline, 3 parts dolomite, 20 parts alumina, 5 parts titanium dioxide frit and 2 parts zinc oxide.

[0024] A preparation method based on the above-mentioned zirconium-free ultra-white surface glaze, comprising the following steps:

[0025] S1. Ingredients: Weigh the raw materials according to the formula ratio for later use;

[0026] S2. Ball milling: put raw materials into a ball mill, add water to grind, and grind for 5 hours to obtain A glaze slurry. The fineness of A glaze slurry is 1.0, the specific gravity of the glaze slurry is 1.90, and the flow rate of the glaze slurry is 70s;

[0027] S3. Sieving and removing iron: filter the ground glaze slurry through a 160-...

Embodiment 3

[0029] A zirconium-free ultra-white surface glaze, comprising the following raw materials in parts by mass: 35 parts of quartz, 8 parts of calcined talc, 8 parts of washed kaolin, 12 parts of calcined kaolin, 15 parts of potassium feldspar, 20 parts of albite, 25 parts of lithium Porcelain stone, 20 parts nepheline, 2.5 parts dolomite, 15 parts alumina, 3 parts titanium dioxide frit and 1.5 parts zinc oxide.

[0030] A preparation method based on the above-mentioned zirconium-free ultra-white surface glaze, comprising the following steps:

[0031] S1. Ingredients: Weigh the raw materials according to the formula ratio for later use;

[0032] S2. Ball milling: put raw materials into a ball mill, add water to grind, and grind for 4.5 hours to obtain A glaze slurry. The fineness of A glaze slurry is 0.8, the specific gravity of the glaze slurry is 1.86, and the flow rate of the glaze slurry is 60s;

[0033] S3. Sieving and removing iron: filter the ground glaze slurry through a ...

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PUM

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Abstract

The invention discloses a zirconium-free ultra-white overglaze, relates to the technical field of ceramic tiles, and solves the problem of high cost of ultra-white overglaze in the prior art. The technical key points of the ultra-white overglaze are as follows: the ultra-white overglaze comprises the following raw materials in parts by mass: 20-45 parts of Quartz, 0-10 parts of calcined talc, 4-10parts of water-washed kaolin, 5-15 parts of calcined kaolin, 0-25 parts of potassium feldspar, 10-25 parts of albite, 5-35 parts of lithium porcelain stone, 5-20 parts of nepheline, 0-3 parts of dolomite, 0-20 parts of alumina, 0-5 parts of titanium dioxide frit and 0-2 parts of zinc oxide. According to the invention, zirconium compounds are removed from the glaze, and other raw materials are added, so that the whiteness of the overglaze is ensured; and compared with the traditional glaze, the overglaze has lower cost and lower radiation..

Description

technical field [0001] The invention relates to the technical field of tiles, in particular to a zirconium-free ultra-white glaze and a preparation method thereof. Background technique [0002] Glaze is a kind of silicate. The glaze applied on ceramics is generally made of quartz, feldspar, and clay. After grinding and adding water, it is coated on the surface of the green body and melted by roasting at a certain temperature. The temperature drops When, a glassy thin layer on the ceramic surface is formed. It increases the mechanical strength, thermal stability, dielectric strength and prevents liquid and gas erosion of ceramics. Glaze also increases the appearance of porcelain and is easy to clean and not be stained by dust. [0003] Zirconia or zirconium silicate is generally contained in the ultra-white top glaze to improve the performance of the top glaze and improve the whiteness of the top glaze. Therefore, we propose a zirconium-free ultra-white glaze and its prepar...

Claims

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Application Information

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IPC IPC(8): C03C8/20
CPCC03C8/20
Inventor 陈迪晴龙慧李云峰陈彬
Owner 佛山市玉矶材料科技有限公司
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