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a glaze composition

A composition and glaze technology, applied in the field of ceramic products, can solve the problems of uneven thickness of glaze surface, uneven color, low high temperature viscosity, etc., and achieve the effect of improving glaze surface effect, reasonable ratio and high high temperature viscosity

Active Publication Date: 2019-11-05
JINGDEZHEN CERAMIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of glazes in the prior art, such as low viscosity at high temperature and fast fluidity, which cause glaze flow and piled glaze, resulting in uneven thickness and uneven color of the glaze surface, and then provide a Glaze composition with high viscosity at high temperature and low fluidity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The firing method of the translucent light blue glaze provided by the present embodiment comprises the following steps:

[0031] (1) Preparation of glaze slurry

[0032] Accurately weigh the following glaze raw materials: 8.85g of Longyan kaolin, 40.34g of potassium feldspar, 27.55g of quartz, 20.66g of wollastonite, 0.98g of bone ash, 1.57g of ferric oxide, and 0.05g of cobalt oxide. Put alumina ball stone and water into the ball mill, the glaze raw material: high alumina ball stone: water mass ratio is 1:2:0.8, ball milling time is 30min, speed is 450r / min, particle fineness is 0.2 million hole sieve %, mix and stir evenly to make glaze slurry.

[0033] (2) Glazing

[0034] Apply the glaze slurry evenly on the surface of the high white clay body, the thickness of the glaze layer is 0.75mm, and let it dry.

[0035] (3) Firing

[0036] Put the glazed and dried high white mud body into a reducing gas kiln, reduce it at 1000°C for 3.5 hours, then fire it in a reducing...

Embodiment 2

[0039] The firing method of the translucent light blue glaze provided by the present embodiment comprises the following steps:

[0040] (1) Preparation of glaze slurry

[0041] Accurately weigh the glaze raw materials in the following percentages by weight: 7g of Longyan kaolin, 42g of potassium feldspar, 26.4g of quartz, 22g of wollastonite, 0.5g of bone ash, 2g of ferric oxide, and 0.1g of cobalt oxide. Put the ball stone and water into the ball mill, the glaze raw material: the mass ratio of high alumina ball stone: water is 1:2:0.8, the ball mill time is 30min, the speed is 450r / min, and the particle fineness is 0.2% of the 10,000-hole sieve , mix and stir evenly to make a glaze slurry.

[0042] (2) Glazing

[0043] Apply the glaze slurry evenly on the surface of the high white mud body, the thickness of the glaze layer is 1mm, and let it dry.

[0044] (3) Firing

[0045] Put the glazed and dried high white mud body into a reducing gas kiln, reduce it at 980°C for 4 ho...

Embodiment 3

[0048] The firing method of the translucent light blue glaze provided by the present embodiment comprises the following steps:

[0049] (1) Preparation of glaze slurry

[0050]Accurately weigh the glaze raw materials in the following percentages by weight: 10g of Longyan kaolin, 38g of potassium feldspar, 30g of quartz, 18.98g of wollastonite, 2g of bone ash, 1g of ferric oxide, and 0.02g of cobalt oxide. Stone and water are put into the ball mill, the glaze raw material: high alumina ball stone: water mass ratio is 1:2:0.8, the ball milling time is 30min, the rotating speed is 450r / min, and the particle fineness is 0.2% of the 10,000-hole sieve. Mix and stir evenly to make a glaze slurry.

[0051] (2) Glazing

[0052] Spread the glaze slurry evenly on the surface of the high white clay body, the thickness of the glaze layer is 0.5mm, and let it dry.

[0053] (3) Firing

[0054] Put the glazed and dried high white clay body into a reducing gas kiln, reduce it at 1020°C for...

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Abstract

The invention provides a glaze composition and belongs to the technical field of ceramic products. The glaze composition is prepared from the following raw materials in parts by weight: 7 to 10 parts of Longyan kaolin, 38 to 42 parts of potassium feldspar, 25 to 30 parts of quartz, 18 to 22 parts of wollastonite, 0.5 to 2 parts of bone ash and 1.02 to 2.1 parts of pigment. The glaze provided by the invention has high viscosity and low flowability in a firing process and the defects that the thickness of a glaze surface is not uniform and the color is not uniform, caused by glaze flowing and glaze stacking, are avoided; a firing method of the glaze provided by the invention has a high reduction temperature point and a relatively wide high-temperature firing temperature range; the yield of a product is easy to guarantee; furthermore, a ceramic product fired by the invention has high glaze surface glossiness, pure color, beautiful appearance and long implication.

Description

technical field [0001] The invention belongs to the technical field of ceramic products, and in particular relates to a glaze composition. Background technique [0002] Glaze is a glass-like thin layer covering the surface of the ceramic body. After coating the prepared glaze slurry on the surface of the body and calcining at a high temperature, it will melt and spread out, and form a glass-like thin layer and body after cooling. body together. The role of glaze is to improve the appearance quality of ceramic products, improve the technology and performance of products, endow products with smooth and bright surfaces, increase the beauty of products and protect the underglaze decoration. The ceramic industry attaches great importance to the adoption of advanced glaze technology. A large number of professional ceramic glaze and ceramic frit companies have emerged in China, and the glazes used in ceramic products are becoming more and more abundant. For example, Chinese paten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/14C04B41/86
CPCC03C8/14C04B41/5022C04B41/86C04B41/4539
Inventor 唐敏熊露肖楠
Owner JINGDEZHEN CERAMIC UNIV
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