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Transparent ceramic glaze and preparation method thereof

A technology of transparent glaze and ceramics, which is applied in the field of inorganic non-metallic materials to achieve the effect of good flow effect, broad application prospect and bright color.

Inactive Publication Date: 2018-05-29
HUNAN KARPERY INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional medium-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

[0014] Step 1: According to the mass percentage of chemical composition: SiO 2 50.89%, Al 2 o 3 10.09%, B 2 o 3 18.45%, Li 2 O 3.19%, Na 2 O 3.16%, K 2 O 4.13%, MgO 4.40%, CaO 2.52%, ZnO 3.17%, for batching;

[0015] Step 2: After mixing and grinding the raw materials in Step 1 evenly, put them into a corundum crucible;

[0016] 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;

[0017] 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 glaze powder after drying;

[0018] Step 5: Mix the glaze powder and water evenly at a weight ratio of 2:1, and coat it on a flat porcelain plate with a thickness of 0.5mm. After drying, put it in an electric furnace for color baking, and heat up at a rate of 5°C / min. 850 ℃, the sample was obtained by natural cooling, and the sample was teste...

Embodiment 2

[0020] Step 1: According to the mass percentage of chemical composition: SiO 2 48.02%, Al 2 o 3 9.38%, B 2 o 3 22.51%, Li 2 O4.53%, Na 2 O 2.36%, K 2 O 3.60%, MgO 3.33%, CaO 3.17%, ZnO 3.10%, for batching;

[0021] Step 2: After mixing and grinding the raw materials in Step 1 evenly, put them into a corundum crucible;

[0022] 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;

[0023] 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 glaze powder after drying;

[0024] Step 5: Mix the glaze powder and water evenly at a weight ratio of 2:1, and 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. 840 ℃, the sample was obtained by natural cooling, and the sample was tested ...

Embodiment 3

[0026] Step 1: According to the mass percentage of chemical composition: SiO 2 46.61%, Al 2 o 3 9.09%, B 2 o 3 21.82%, Li 2 O4.97%, Na 2 O 2.93%, K 2 O 3.13%, MgO 3.83%, CaO 4.15%, ZnO 3.47%, for batching;

[0027] Step 2: After mixing and grinding the raw materials in Step 1 evenly, put them into a corundum crucible;

[0028] 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;

[0029] 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 glaze powder after drying;

[0030] Step 5: Mix the glaze powder and water evenly at a weight ratio of 2:1, and coat it on a flat porcelain plate with a thickness of 0.8mm. After drying, put it in an electric furnace for color baking, and heat up at a rate of 5°C / min. 830 ℃, the sample was obtained by natural cooling, and the sample was tested ...

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Abstract

The invention discloses transparent ceramic glaze and a preparation method thereof. Glaze powder used in the transparent ceramic glaze is prepared from components in percentage by mass as follows: 44%-51% of SiO2, 7%-11% of Al2O3, 18%-26% of B2O3, 3%-5% of Li2O, 2%-4% of Na2O, 2%-5% of K2O, 3%-6% of MgO, 2%-5% of CaO and 3%-6% of ZnO. The transparent ceramic glaze is simple to prepare, green, environmentally friendly, excellent in acid resistance and base resistance and high in glossiness.

Description

technical field [0001] The invention relates to a ceramic transparent glaze and a preparation method thereof, belonging to the field of inorganic non-metallic materials (ceramics). Background technique [0002] At present, the main fluxes of traditional medium-temperature ceramic transparent glazes are lead powder and nitrate (potassium nitrate); lead oxide and potassium nitrate are good fluxes, which not only have a high refractive index to improve the gloss of the glaze, but also have low high-temperature viscosity. Make the glaze bright and smooth, bright and bright, with good flow effect and artistic mechanism effect. However, the traditional medium-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. Contents of the invention [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/04C04B41/86
CPCC03C8/04C04B41/5022C04B41/86C04B41/0072
Inventor 肖杨
Owner HUNAN KARPERY INDAL
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