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Method for manufacturing middle-temperature ceramics for daily use crackle glaze

A production method and cracked glaze technology are applied in the field of cracked glaze on the surface of daily ceramics and its ingredients, which can solve the problems of product color absorption, brittleness, and only suitable for small products, and achieve the effect of bright color and rich color.

Inactive Publication Date: 2008-08-20
HUNAN HUALIAN CHINA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, cracked glazes are currently used in daily-use ceramics. There are many defects such as color absorption and fragility of the product due to cracks in the glaze, and it is only suitable for small pieces of products, so it has not been widely used.

Method used

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  • Method for manufacturing middle-temperature ceramics for daily use crackle glaze

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A widely used scheme is a cracked glaze suitable for medium-temperature daily-use white porcelain. On the basis of the conventional cracked glaze, lithium-containing raw materials are added, and part of the raw materials are made into cracked frit. The glaze raw materials are made by mixing the conventional white porcelain body materials, and then the glaze slurry is made by adding water ball mill; the glaze slurry is applied to the white clay green body, dried and then put into the kiln, and fired at 1240~1280℃ to crack glaze. The specific technical scheme is described as follows:

[0034] The crafting formula of the glaze, in parts by weight, is as follows:

[0035] 50 parts of cracked frit, 15 parts of spodumene

[0036] 15 parts of barium carbonate 20 parts of kaolin

[0037] The chemical composition of cracked glaze prepared according to the above process formula is as follows:

[0038] SiO 2 : 48.95% Al 2 O 3 : 9.86%

[0039] K 2 O: 0.74% Na 2 O: 13.58%

[0040] Li 2 ...

Embodiment 2

[0045] A cracked glaze suitable for medium temperature white porcelain, the specific technical scheme is as follows:

[0046] The process formula of the ingredients, the proportion of parts by weight is:

[0047] 70 parts of cracked frit, 10 parts of spodumene, 8 parts of barium carbonate

[0048] 8 parts of kaolin, 2 parts of copper oxide

[0049] The chemical composition of cracked glaze prepared according to the above process formula is as follows:

[0050] SiO 2 : 47.78% Al 2 O 3 : 5.38% K 2 O: 0.53%

[0051] Na 2 O: 17.31% Li 2 O: 3.87% CaO: 16.7%

[0052] BaO: 6.02% MgO: 0.06% CuO: 1.98%

[0053] The production method is as follows:

[0054] Weigh various raw materials accurately according to the process requirements, put the raw materials into the ball mill according to the raw materials: ball stone: water = 2:2:0.8, ball mill for 24 hours, the glaze slurry fineness is 250 mesh sieve, and the sieve residue is 0.08~0.1%. Pass a 160-mesh sieve. Add 1‰ to 2‰ of ammonium chlori...

Embodiment 3

[0056] A cracked glaze suitable for medium-temperature daily-use white porcelain. The specific technical scheme is as follows:

[0057] The glaze is composed of a base glaze and a coloring agent, and its composition is composed of 98% of the base glaze and 2% of the coloring agent. The coloring agent is a ceramic pigment: silver gray.

[0058]The process formula of the ingredients, the proportion of parts by weight is:

[0059] 50 parts of cracked frit, 20 parts of spodumene, 10 parts of barium carbonate

[0060] 15 parts of kaolin, 2 parts of silver ash

[0061] The chemical composition of the cracked glaze base glaze prepared according to the above process formula is as follows:

[0062] SiO 2 : 53.89% Al 2 O 3 : 7.62% K 2 O: 0.68%

[0063] Na 2 O: 14.11% Li 2 O: 3.05% CaO: 12.84%

[0064] BaO: 7.53% MgO: 0.08%

[0065] The production method is as follows:

[0066] Accurately weigh various raw materials according to the process requirements, put the raw materials i...

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Abstract

The invention discloses a manufacturing method of middle temperature ceramic crack glaze for daily use; raw material with lithium is added on the base of the conventional crack glaze, a part of the raw material is made to crack frits, the glaze raw materials is manufactured by mixing the crack frits and the conventional white porcelain billet material, and glaze slip is manufactured by a way of adding water and ball milling; the glaze slip is applied on a white mud raw billet and is put in to a kiln after being dried, and the crack glaze is fired under the temperature of 1240 to 1280 DEG C. The craft formula of the glaze raw material is as follows according to weight portion ratio: crack frits: 50 to 80 portions; spodumene: 10 to 20 portions; barium carbonate: 5 to 15 portions; kaolin: 5 to 20 portions.

Description

Technical field: [0001] The invention belongs to a medium-temperature ceramic glaze and a manufacturing method thereof, in particular to a glaze with cracks on the surface of daily-use ceramics and a compounding method thereof, and belongs to the field of inorganic material ceramic glazes. Fine surface cracks can be formed on white porcelain appliances for daily use. Background technique: [0002] Cracked glaze is also called pattern glaze and broken pattern glaze. The formation of cracks on the glaze is a defect of ceramic products, but the cracked glaze artificially creates clear cracks in the glaze, which makes the ceramic products have a unique artistic effect. Due to the different shapes of the cracks, the names also vary, such as caviar patterns, broken pieces of garbage, ice cracks, crab claw patterns and other varieties. The most precious one is called "golden wire" or "eel claw pattern", which is intertwined with dense red and yellow cracks in the rough black pattern, an...

Claims

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Application Information

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IPC IPC(8): C04B41/86
Inventor 钟国前石建军彭宏李晓婷徐锐峰
Owner HUNAN HUALIAN CHINA IND
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