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High-temperature ceramic transparent glaze

A technology of high-temperature ceramics and transparent glazes, which is applied in the field of inorganic non-metallic materials (ceramics) to achieve good flow effects and broad application prospects

Inactive Publication Date: 2019-06-25
叶剑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional high-temperature ceramic transparent glaze contains a large amount of lead elements that are harmful to the human body. Facing the increasingly stringent requirements for the dissolution of lead and cadmium in ceramic products at home and abroad, it will not be able to meet the new demand.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Step 1: Percentage by chemical composition: SiO 2 52.89%, Al 2 o 3 15.09%, B 2 o 3 18.45%, Li 2 O 1.19%, Na 2 O 3.16%, K 2 O 2.13%, MgO 2.40%, CaO 2.52%, ZnO 2.17%, for batching;

[0011] Step 2: After mixing and grinding the raw materials in Step 1 evenly, put them into a corundum crucible;

[0012] Step 3: Put the corundum crucible into the electric furnace, raise the temperature at a rate of 5°C / min to 1300°C, and keep it warm for 30 minutes;

[0013] Step 4: Put the quenched granular frit into a ball mill tank, pass through a 300-mesh sieve after ball milling, the sieve residue is 0, and obtain high-temperature ceramic transparent glaze powder after drying;

[0014] Step 5: Mix high-temperature ceramic transparent glaze powder and water at a weight ratio of 2:1, and then coat it on a flat porcelain plate with a thickness of 0.7mm. After drying, put it in an electric furnace for color baking, and heat up at a rate of 5°C / min. , the temperature was raised ...

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Abstract

The invention discloses a high-temperature ceramic transparent glaze, which adopts natural mineral raw materials and industrial chemical industry raw materials according to the following chemical composition of 52.89% of SiO2, 15.09% of Al2O3, 18.45% of B2O3, 1.19% of Li2O, 3.16% of Na2O, 2.13% of K2O, 2.40% of MgO, 2.52% of CaO, and 2.17% of ZnO, and material preparing, grinding, high temperaturemelting, quenching, ball milling and screening are performed to obtain the high-temperature ceramic transparent glaze. According to the present invention, by controlling the ratio of the components,the problems of chemical stability, glossiness, surface tension, expansion coefficient and the like are solved, and the high-temperature ceramic transparent glaze having advantages of brightness, flatness and good flowing effect and well matched with the porcelain billet is obtained.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials (ceramics), and in particular relates to a high-temperature ceramic transparent glaze. Background technique [0002] The main fluxes of traditional high-temperature ceramic transparent glazes are lead powder and nitrate (potassium nitrate); lead oxide and potassium nitrate are good fluxes, which not only have high refractive index and can improve the gloss of the glaze surface, but also have low high-temperature viscosity, making the glaze The surface is bright and flat, the color is bright and bright, the flow effect is good, and it has an artistic mechanism effect. However, the traditional high-temperature ceramic transparent glaze contains a large amount of lead elements that are harmful to the human body. Facing the increasingly stringent requirements for the dissolution of lead and cadmium in ceramic products at home and abroad, it will not be able to meet the new demand. Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/04
Inventor 叶剑
Owner 叶剑
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