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Low-temperature ceramic opaque glaze

A technology of low temperature ceramics and opaque glaze, applied in the field of inorganic non-metallic materials (ceramics), to achieve the effect of good matching, broad application prospects and good flow effect

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

AI Technical Summary

Problems solved by technology

However, the traditional low-temperature ceramic opaque 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 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%, ZrO 2 3.17%, 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 jar, pass through a 300-mesh sieve after ball milling, the sieve residue is 0, and obtain low-temperature ceramic opaque glaze powder after drying.

Embodiment 2

[0015] Step 1: Percentage by chemical composition: SiO 2 48.02%, Al 2 o 3 9.38%, B 2 o 3 22.51%, Li 2 O 4.53%, Na 2 O2.36%, K 2 O 3.60%, MgO 3.33%, CaO 3.17%, ZrO 2 3.10%, for batching;

[0016] Step 2: After mixing and grinding the raw materials in Step 1 evenly, put them into a corundum crucible;

[0017] 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;

[0018] Step 4: Put the quenched granular frit into a ball mill jar, pass through a 300-mesh sieve after ball milling, the sieve residue is 0, and obtain low-temperature ceramic opaque glaze powder after drying.

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Abstract

The invention discloses a low-temperature ceramic opaque glaze, which adopts natural mineral raw materials and industrial chemical industry raw materials according to the following chemical composition of 42-49% of SiO2, 7-11% of Al2O3, 18-26% of B2O3, 3-5% of Li2O3, 2-4% of Na2O, 4-7% of K2O, 3-6% of MgO, 2-5% of CaO, and 4-7% of ZrO, wherein the natural mineral raw materials and the industrial chemical industry raw materials do not contain lead, cadmium, arsenic, bismuth and other elements harmful to human body, and material preparing, grinding, high temperature melting, quenching, ball milling and screening are performed to obtain the low-temperature ceramic opaque 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 low-temperature ceramic opaque 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 low-temperature ceramic opaque glaze. Background technique [0002] The main fluxes of traditional low-temperature ceramic opacified glazes are lead powder, nitrate (potassium nitrate), and zirconia; lead oxide and potassium nitrate are good fluxes, which not only have high refractive index to improve the gloss of glaze, but also have high-temperature viscosity. Small, so that the glaze 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 low-temperature ceramic opaque 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 inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/00
Inventor 李金
Owner 李金
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