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Low temperature semi-porcelain and its preparation method

A low-temperature, fine-porcelain technology, applied in the field of low-temperature semi-porcelain and its preparation, can solve the problems of not bright color, faded color, not bright color, etc., and achieve the effects of not reducing other properties, uniform color absorption, and stable color rendering

Inactive Publication Date: 2006-04-05
揭阳恒成陶瓷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, half-porcelain is decorated under the glaze. If the firing temperature exceeds 1150°C, many color materials will lose their color due to high temperature volatilization, resulting in the color fading or fading, and the color will not be bright or bright.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A low-temperature semi-ceramic cup

[0044] The weight percentage of its raw materials is determined by the molecular formula as Al 2 o 3 2SiO2 2 2H 2 O-based clay: 50-60%, fine porcelain mud waste 5%, lithium china stone Li 2 OAl 2 o 3 6SiO 2 2H 2 O: 8~12%, diopside CaOMgO2SiO 2 : 8~12%, black talc 3MgO4SiO 2 h 2 O: 10-15%, potassium feldspar K 2 OAl 2 o 3 6SiO 2 : Composition of 5-10%.

Embodiment 2

[0046] A kind of preparation method of low temperature semi-ceramic cup:

[0047] 1), ingredients: first process the raw materials, break the hard raw materials, and remove impurities; then, according to the molecular formula, use Al 2 o 3 2SiO2 2 2H 2 O-based clay: 50-60%, fine porcelain mud waste 5%, lithium china stone: 8-12%, diopside: 10%, black talc: 10-15%, potassium feldspar: 5-10 % content to prepare raw materials;

[0048] 2), ball mill: raw material: ball stone: water = 1: 1.8: 0.8, the grinding time in the ball mill is 18 hours;

[0049] 3), sieving to remove iron: pass through a 250 mesh sieve, and the sieve residue is below 0.2wt%;

[0050] 4), filter press mud refining: dehydration treatment to homogenize and plasticize the mud;

[0051] 5), green body forming: according to the design requirements, molding;

[0052] 6) Body painting and glazing: painting according to incoming samples or design requirements, and glazing with suitable glazes purchased from ...

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Abstract

The invention relates to a low-temperature semi-ceramic, which comprises: 50-65% clay of Al2O32SiO22H2O, 0-10% fine ceramic waste, 3-20% lithium China stone, 3-25% diopside, 5-20% talc, and 0-15% feldspar. Wherein, breaking the hard material, removing impurity; preparing material according to said weight share; grinding material, ball stone and water as proportion of 1:1.8-2:0.8 for 18-20h; screening off iron from 250 items sieve with residue under 0.2wt%; pressure filtering, forming; colored drawing on blank; glazing; finally, using low-temperature one-time calcination technique at 1020-1030Deg with oxidation atmosphere for 5-6h. This invention has well property, and decreases greatly energy consumption.

Description

technical field [0001] The invention belongs to the technical field of ceramic material preparation, and in particular relates to a low-temperature semi-ceramic and a preparation method thereof. Background technique [0002] Ceramics are daily-use products that combine practicability and artistry. With the improvement of people's living standards and changes in ideas, they tend to be more individualized and diversified. Banci is a new type of ceramic developed in recent years. It has some characteristics of porcelain and pottery, its sintering temperature is generally 1180-1210 ℃, and its water absorption rate is about 5%, which is similar to the quality of fine pottery. There are many varieties of semi-porcelain, with bright colors, rich colors, bright glaze, underglaze decoration, and no safety and health problems of lead and cadmium heavy metal dissolution. It is deeply loved by people, especially in Europe and the United States. [0003] At present, half-porcelain is de...

Claims

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Application Information

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IPC IPC(8): C04B35/18C04B35/622
Inventor 陈瑶武李妙良
Owner 揭阳恒成陶瓷科技有限公司
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