A kind of green spot glaze and preparation method thereof

A speckle glaze and glaze paste technology, applied in the field of chlorophyll speckle glaze and its preparation, can solve the problems of affecting the color of glaze, large expansion coefficient and high melting temperature, and achieve strong production stability, good thermal stability and low cost. low cost effect

Active Publication Date: 2020-04-03
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the green glazes prepared by predecessors use basic copper carbonate, which has high viscosity, high melting temperature and large expansion coefficient, which affects the color of the glaze.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] a. Pulverize the natural mineral raw materials potassium feldspar, calcite, quartz, dolomite, kaolinite, talc and chlorite, copper oxide, manganese carbonate and manganese oxide respectively, and sieve to 200 mesh for later use;

[0025] b. Get 35 parts of potassium feldspar, 28 parts of calcite, 18 parts of quartz, 3 parts of dolomite, 3 parts of kaolinite, 0.5 part of talc and 0.5 part of chlorite after crushing and sieving, and mix them with 60 parts under stirring and dispersing state Prepare the basic glaze slurry with warm water at a mass ratio of 1:0.8. After fully dispersing and mixing, use a centrifuge to remove suspended matter, and let it stand for 2 hours for later use;

[0026] c. Take the basic glaze slurry in step b as the continuous phase, add 5 parts of copper oxide, 3 parts of manganese carbonate, and 4 parts of manganese oxide according to the mass ratio as the dispersed phase into the continuous phase, stir slowly and evenly, and make the glaze slurry...

Embodiment 2

[0032] The mass fraction of raw material components is prepared, the glaze slurry is prepared, and the glaze application method is the same as that of Example 1;

[0033] The difference from Example 1 is that it is fired in an oxidizing environment in an electric kiln, and the temperature is raised from room temperature to 1300°C at a constant speed of 2.5°C / min, and sintered for 20 hours; the temperature is lowered from 1300°C at a constant speed of 5°C / min To 1120°C, keep warm for 100 minutes; when out of the oven, the temperature will drop by 10°C per minute on average, and after it drops to 600°C, it will naturally cool down until it is out of the oven;

[0034] The obtained dark green glaze is interlaced with gray-green crystal flowers, and the number of gray-green crystal flowers is more than that of Example 1.

Embodiment 3

[0036] The difference from Example 1 is: 37 parts of potassium feldspar, 26 parts of calcite, 14 parts of quartz, 4 parts of dolomite, 5 parts of kaolinite, 1 part of talc, 1 part of chlorite; 6 parts of copper oxide, carbonic acid 3 parts manganese, 3 parts manganese oxide;

[0037] Allotment glaze slurry, glaze method, sintering process are identical with embodiment 1;

[0038] The obtained dark green glaze is interlaced with gray-green crystal flowers, and the crystal flower green is slightly darker than that of Example 1.

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Abstract

The invention relates to a glaze, in particular to a leaf green speckled glaze and a preparation method thereof. The technical scheme of the present invention is as follows: a kind of phyllophyte speckled glaze, comprising dark green glaze surface and blue-gray crystal flower, the glaze slurry used comprises continuous phase and dispersed phase, and the mineral composition in the continuous phase is by mass ratio: potassium feldspar 32 ‑37 parts, 23‑29 parts of calcite, 14‑19 parts of quartz, 2‑4 parts of dolomite, 2‑5 parts of kaolinite, 0.5‑1 part of talc and 0.5‑2 parts of chlorite, the dispersed phase composition is by mass The ratio is: 3-8 parts of copper oxide, 2-4 parts of manganese carbonate and 3-5 parts of manganese oxide. The present invention aims at the deficiencies of existing green glazes, and provides a kind of phyllophyte speckled glaze and a preparation method thereof. The phyllophyte speckled glaze prepared by using natural mineral raw materials at medium-high temperature is more hard, wear-resistant and corrosion-resistant, and the glaze after sintering It is not easy to separate from the green body; the glaze color is like verdant green leaves with layers of green leaves, which is natural, and the dark green glaze surface and gray-green crystal spots are interlaced, fresh and natural.

Description

technical field [0001] The invention relates to a glaze, in particular to a leaf green speckled glaze and a preparation method thereof. Background technique [0002] Glaze has been used in Chinese ceramics for a long time. As early as the Shang Dynasty, the ancients consciously used soil and rocks to decorate ceramics. In the Han Dynasty more than 2,000 years ago, the ash of plants and trees fell naturally on the body to form a glaze. . The color and decoration of glazes have become the main means of decoration of ceramics, embodying the pursuit of beauty by the ancients; the glazes used in the production of modern daily-use ceramics pay more attention to the combination of appearance and function, involving arts and crafts, daily use, architecture and hygiene. Fields, mainly divided into two categories: lime glaze and long ancient glaze. [0003] Mixing metal oxides or other chemical components into lime glaze and long ancient glaze can produce various color glazes, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/00C04B41/86
CPCC03C8/00C04B41/5022C04B41/86
Inventor 黄菲刘开君任亚群张志彬邢苗苗闫莹灿安佰高
Owner NORTHEASTERN UNIV LIAONING
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