Vintage ceramic making method

A production method and ceramic technology, applied in the field of ceramic manufacturing, can solve the problems of no use value, unevenness, etc.

Active Publication Date: 2017-02-01
西安天时包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] It is a conventional technical means to introduce titanium dioxide into the glaze layer to make opacified glaze. Titanium dioxide appears yellowing phenomenon when fired at high temperature, but this yellowing phenomenon occurs unevenly on the glaze surface, so that this yellowing phenomenon does not have Utilize value, so people work to eliminate this yellowing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Biscuit production: add 0.8 kg of soda ash to 75 kg of water, add 400 kg of porcelain clay after dissolving, soak for 1-2 days, stir and knead to make a slurry with a specific gravity of 1.7 g / ml. The mud is subjected to model grouting, trimmed and dried to obtain a ceramic green body.

[0021] Spray sodium sulfate: add sodium sulfate to water to make 4% sodium sulfate solution, spray sodium sulfate solution on the surface of the green body, and the coating amount is 100ml per square meter.

[0022] Prepare glaze slurry: bake 325 mesh (particle size less than 45um) zinc oxide at 1000°C for 1 hour, then cool to obtain zinc oxide. Mix 1.1kg of roasted zinc oxide, 5.5kg of albite, 0.5kg of light magnesium carbonate, 0.5kg of calcium carbonate, 0.5kg of kaolin, and 0.25kg of 325 mesh (particle size less than 45um) titanium dioxide for 22 hours, then add water to make A glaze slurry with a specific gravity of 1.48g / ml.

[0023] Glazing: Spray the above-mentioned glaze slur...

Embodiment 2

[0027] Biscuit production: add 0.8 kg of soda ash to 75 kg of water, add 400 kg of porcelain clay after dissolving, soak for 1-2 days, stir and knead to make a slurry with a specific gravity of 1.7 g / ml. The mud is subjected to model grouting, trimmed and dried to obtain a ceramic green body.

[0028] Spray sodium sulfate: add sodium sulfate to water to make 2% sodium sulfate solution, spray sodium sulfate solution on the surface of the green body, and the coating amount is 100ml per square meter.

[0029] Preparation of glaze slurry: bake 325-mesh (particle size less than 45um) zinc hydroxide at 1200°C for 1 hour, then cool to obtain zinc oxide. Mix 1.1kg of zinc oxide, 5.5kg of albite, 0.5kg of light magnesium carbonate, 0.5kg of calcium carbonate, 0.5kg of kaolin, and 0.25kg of 325 mesh titanium dioxide for 24 hours, and add water to make a glaze slurry with a specific gravity of 1.48g / ml.

[0030] Glazing: Spray the above-mentioned glaze slurry by spraying, and the coatin...

Embodiment 3

[0034] Biscuit production: add 0.8 kg of soda ash to 75 kg of water, add 400 kg of porcelain clay after dissolving, soak for 1-2 days, stir and knead to make a slurry with a specific gravity of 1.7 g / ml. The mud is subjected to model grouting, trimmed and dried to obtain a ceramic green body.

[0035] Spray sodium sulfate: add sodium sulfate to water to make 2% sodium sulfate solution, spray sodium sulfate solution on the surface of the green body, and the coating amount is 150ml per square meter.

[0036] Preparation of glaze slurry: bake 325-mesh (particle size less than 45um) zinc carbonate at 1200°C for 1 hour, then cool to obtain zinc oxide. Mix 1.1kg of zinc oxide, 5.5kg of albite, 0.5kg of light magnesium carbonate, 0.5kg of calcium carbonate, 0.5kg of kaolin, and 0.25kg of 325 mesh titanium dioxide for 24 hours, and add water to make a glaze slurry with a specific gravity of 1.48g / ml.

[0037] Glazing: Spray the above-mentioned glaze slurry by spraying, and the coatin...

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Abstract

The invention provides a ceramic making method which is simple in operation and produces a matte light yellow-green vintage effect due to kiln change of a glaze layer occurred in the firing process. A sodium sulfate solution is sprayed to the surface of a ceramic bisque, zinc oxide obtained through firing, feldspars, light magnesium carbonate, calcium carbonate, kaolin and titanium dioxide are mixed and ball-milled, water is added to prepare glaze slip, glaze firing is conducted on the glazed ceramic bisque, heat preservation is performed at the temperature of 120 DEG C for drying, then heating is performed at the speed of 80-140 DEG C / h to reach 950 DEG C, then heating is performed at the speed of 60-80 DEG C / h to reach 1258-1260 DEG C, heat preservation is performed for 1-2 hours, cooling is performed at the speed of 30-60 DEG C / h to reach 1150 DEG C, then cooling is performed at the speed of 60-80 DEG C / h to reach 1050 DEG C, and a kiln is naturally cooled to obtain a vintage glazed ceramic product.

Description

technical field [0001] The invention relates to a method for manufacturing ceramics, in particular to a method for manufacturing ceramic products with an old-fashioned appearance effect. Background technique [0002] It is a conventional technical means to introduce titanium dioxide into the glaze layer to make opacified glaze. The yellowing phenomenon occurs when titanium dioxide is fired at high temperature, but this yellowing phenomenon occurs unevenly on the glaze surface, so that this yellowing phenomenon does not have Utilize value, so people work to eliminate this yellowing phenomenon. [0003] CN86105759A provides a medium and high temperature once-fired titanium-zinc system opacity glaze, which introduces TiO2, ZnO, CaO, MgO, P 2 o 5 And CoO to overcome the defect of high temperature yellowing, forming a white opaque glaze layer to improve the whiteness of the green body. [0004] CN104945018A discloses a khaki-yellow raw material glaze for Nixing pottery. The ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/89C03C8/04
CPCC03C8/04C04B41/52C04B41/89C04B41/5014C04B41/5022
Inventor 柯勇
Owner 西安天时包装有限公司
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