Fast-fired tea dust matt reaction glaze and preparation method thereof

A light reaction and tea powder technology, which is applied in the field of fast-fired tea powder non-light reaction glaze and its preparation, can solve the problems of increasing process difficulty, difficulty in controlling the amount of introduction, and large crystals, so as to reduce labor costs and facilitate large-scale production , Improve the effect of density

Active Publication Date: 2021-09-03
湖南泰鑫瓷业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]In the traditional process of making tea powder glaze, the composition of basic raw materials is adjusted and zinc oxide is added as a crystallization agent to quickly promote the formation of crystals and achieve a satisfactory glaze surface effect, but the amount of introduction is difficult to control. Too much introduction will cause the crystals to be too large and the glaze will lose color, which increases the difficulty of the process.

Method used

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  • Fast-fired tea dust matt reaction glaze and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Preparation of modified nano-zinc oxide:

[0029] Step S1, dissolving yttrium oxide in nitric acid to prepare 0.7mol / L yttrium nitrate solution, dissolving zinc nitrate hexahydrate in deionized water to prepare 0.75mol / L zinc nitrate solution, and mixing the two solutions in a volume ratio of 1:1 , to obtain a salt solution;

[0030] Step S2, add 2mol / L ammonia water to the salt solution while stirring, continue to stir for 2h and then stand for 3h, separate the precipitate and wash it with deionized water and absolute ethanol for 3 times, and then place it in an oven to dry to obtain a precursor body, wherein the mass ratio of salt solution and ammonia water is 1:10;

[0031] In step S3, the precursor is placed in a muffle furnace for primary calcination, and then ethanol is added for ball milling, followed by secondary calcination to obtain modified nano-zinc oxide. The temperature was 1100°C, and the temperature was kept for 4h.

Embodiment 2

[0033] Preparation of modified nano-zinc oxide:

[0034] Step S1, dissolving yttrium oxide in nitric acid to prepare 0.71mol / L yttrium nitrate solution, dissolving zinc nitrate hexahydrate in deionized water to prepare 0.76mol / L zinc nitrate solution, and mixing the two solutions in a volume ratio of 1:1 , to obtain a salt solution;

[0035] Step S2, add 2mol / L ammonia water to the salt solution while stirring, continue to stir for 2h and then stand for 3h, separate the precipitate and wash it with deionized water and absolute ethanol for 3 times, and then place it in an oven to dry to obtain a precursor body, wherein the mass ratio of salt solution and ammonia water is 1:10;

[0036] In step S3, the precursor is placed in a muffle furnace for primary calcination, and then ethanol is added for ball milling, followed by secondary calcination to obtain modified nano-zinc oxide. The temperature was 1100°C, and the temperature was kept for 4h.

Embodiment 3

[0038] Preparation of modified nano-zinc oxide:

[0039] Step S1, dissolving yttrium oxide in nitric acid to prepare 0.73mol / L yttrium nitrate solution, dissolving zinc nitrate hexahydrate in deionized water to prepare 0.78mol / L zinc nitrate solution, and mixing the two solutions in a volume ratio of 1:1 , to obtain a salt solution;

[0040] Step S2, add 2mol / L ammonia water to the salt solution while stirring, continue to stir for 2h and then stand for 4h, separate the precipitate and wash it with deionized water and absolute ethanol for 4 times, and then place it in an oven to dry to obtain a precursor body, wherein the mass ratio of salt solution and ammonia water is 1:10;

[0041] In step S3, the precursor is placed in a muffle furnace for primary calcination, and then ethanol is added for ball milling, followed by secondary calcination to obtain modified nano-zinc oxide. The temperature was 1100°C, and the temperature was kept for 4h.

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Abstract

The invention discloses fast-fired tea dust matt reaction glaze, and belongs to the technical field of glaze preparation. The glaze comprises the following raw materials in parts by weight: 25-40 parts of potassium feldspar, 10-25 parts of albite, 10-25 parts of quartz, 3-8 parts of barium carbonate, 5-10 parts of rutile, 3-8 parts of alumina micro powder, 4-8 parts of modified nano zinc oxide, 1-5 parts of talc, 10-18 parts of calcite, 2-6 parts of dolomite, 4-8 parts of soil, 4-8 parts of high-boron frit, 2-8 parts of manganese oxide and 2-8 parts of iron oxide red. The invention further discloses a preparation method of the glaze, a roller kiln is adopted for one-time rapid firing, the obtained tea dust glaze has the advantages of color development, stable character and rich color and luster, large-scale production is more facilitated, the productivity is increased, and the labor cost required by large-scale production is reduced.

Description

technical field [0001] The invention belongs to the technical field of glaze making, and relates to a quick-fired tea powder matte reaction glaze and a preparation method thereof. Background technique [0002] Tea powder glaze is one of the important varieties of iron crystal glaze. The glaze is devitrified, because the glaze is yellow-green and the stars on the glaze surface are similar to the fine tea leaves. The green ones are called tea, and the yellow ones are called the powder, so it is called "tea powder glaze". feature. From the analysis of the chemical composition and crystal structure of the tea powder glaze, the tea powder glaze is mainly composed of α crystal Fe 2 O 3 As a crystallization agent, it is a very important kind of iron-based crystalline glaze. The tea powder glaze is a high-temperature fired crystalline glaze, which needs to be fired in a reducing atmosphere at a high temperature of 1200°C-1300°C. The firing of tea powder glaze is more difficult....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/00C03C1/00C01G9/02B82Y40/00
CPCC03C8/00C03C1/00C01G9/02B82Y40/00Y02P40/60
Inventor 潘俊明胡建张新桥
Owner 湖南泰鑫瓷业有限公司
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