Colorful glaze magnesium-intensified ceramic

A technology for strengthening porcelain and magnesia, which is applied to clay products, other household utensils, household utensils, etc. It can solve the problems of product burnout, lead and cadmium easily exceeding the standard, and great harm to human health, and achieve small color difference and stable color rendering. Effect

Inactive Publication Date: 2007-04-25
蒋则全
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, all colored glaze products on the market are fired on ordinary white porcelain at a relatively low temperature (within 1220°C). If the firing temperature is raised on this basis, the product will be severely burned.
In addition, heavy metals such as lead and cadmium in the glaze are easy to exceed the standard, which is harmful to human health.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A colored glaze magnesia strengthened porcelain, characterized in that the surface of the magnesia strengthened porcelain is covered with a layer of colored glaze, the color of the colored glaze is chestnut brown, and the dissolved amount of lead is 0.15 mg / L and cadmium is detected according to GB / T3532-1995. Dissolution amount was 0.

[0025] The preparation method of the above-mentioned colored glaze magnesia reinforced porcelain comprises the following steps:

[0026] 1) Forming and drying of the green body: Put the mud and mud into the plaster model respectively, and use methods such as rolling forming or grouting forming to make the green body and dry it. The talc content in the green body mud formula of the present invention is more than 70%. The talc is a commercially available product, and its silicon dioxide content is about 60%, and its magnesium oxide content is about 30%.

[0027] 2) Preparation of glaze: add 10% chestnut brown material (commercially avail...

Embodiment 2

[0033] A colored glaze magnesia strengthened porcelain, characterized in that the surface of the magnesia strengthened porcelain is covered with a layer of colored glaze, the color of the colored glaze is sapphire blue, and the amount of lead dissolved is 0.14mg / L according to GB / T3532-1995 detection, Cadmium dissolution rate is 0.

[0034] The preparation method of the above-mentioned colored glaze magnesia reinforced porcelain comprises the following steps:

[0035] 1) Forming and drying of green body: same as in Example 1.

[0036] 2) Preparation of the glaze: add 1% sapphire blue pigment (commercially available common commodity, its main components are: main raw materials are: cobalt oxide, silicon dioxide, boric acid) after grinding the feldspar glaze for 20 hours, and continue grinding 6 hours, until the content of glaze slurry particles with a particle size of 10 μm is 95%;

[0037] The feldspar glaze is composed of the following components by weight: feldspar 530Kg, ...

Embodiment 3

[0041] A colored glaze magnesia strengthened porcelain, characterized in that the surface of the magnesia strengthened porcelain is covered with a layer of colored glaze, the color of the colored glaze is praseodymium yellow, and according to GB / T3532-1995 detection, the dissolved amount of lead is 0.14mg / L, cadmium Dissolution amount was 0.

[0042] The preparation method of the above-mentioned colored glaze magnesia reinforced porcelain comprises the following steps:

[0043] 1) Forming and drying of green body: same as in Example 1.

[0044] 2) Preparation of the glaze: add 5% praseodymium yellow material after grinding the feldspar glaze for 30 hours (commercially available commodity, its main components are: main raw materials are: zirconium dioxide, silicon dioxide, praseodymium oxide), continue Grinding for 6 hours until the content of glaze slurry particles with a particle size of 10 μm is 92%;

[0045]The feldspar glaze is composed of the following components by wei...

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Abstract

The invention discloses a reinforced ceramic of color glazed magnesium, which is characterized by the following: adopting silica as base; covering a layer of glazed color on the surface of magnesium ceramic with lead stripping quantity not more than 0.16mg / L and cadmium stripping quantity not more than 0.001mg / L; improving mechanic strength and glaze hardness.

Description

technical field [0001] The invention belongs to the technical field of fine ceramics with high magnesia content based on silicon oxide, and in particular relates to colored glaze magnesia reinforced porcelain. Background technique [0002] Magnesium reinforced porcelain is a high-grade fine porcelain for daily use. It was developed by Shandong Boshan Ceramics Factory Research Institute in the 1980s and put into mass production in the 1990s. This kind of porcelain has won the National Silver Medal for its high whiteness, good transparency and high strength. It is currently recognized as an ideal porcelain for star-rated hotels and restaurants. [0003] Magnesia reinforced porcelain is made of talc and feldspar as the main raw materials and fired at 1320°C-1340°C. Its structure is dense and its strength is higher than that of ordinary white porcelain. Magnesium reinforced porcelain has been produced with white transparent glaze since it was put into production. With the impro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/86C04B33/34
Inventor 蒋则全
Owner 蒋则全
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