Heat-resistant archaistic iron coarse pottery and preparation method thereof

An iron-based, heat-resistant technology, applied in the production and application of clay products and ceramic materials, can solve problems such as increasing production costs and losing ceramic properties, and achieves improved thermal shock resistance, reduced expansion coefficient, and increased mechanical strength. Effect

Active Publication Date: 2020-06-16
HUNAN HUALIAN CHINA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned ceramics basically belong to the category of porcelain, and the glaze will be applied to the green body. Although the thermal stability is improved, it will lose the characteristics of the pottery itself and increase the production cost.

Method used

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  • Heat-resistant archaistic iron coarse pottery and preparation method thereof
  • Heat-resistant archaistic iron coarse pottery and preparation method thereof
  • Heat-resistant archaistic iron coarse pottery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Components and content in the formula of the present invention are:

[0032]

[0033] Accurately formulate the weight of each raw material in the above formula, make mud sticks, form green bodies, or carve patterns on the green bodies according to the mud making method above. Or add color patterns, put them in a kiln and burn them with reduced flames. During the firing cycle in a reducing atmosphere, the carbon monoxide gas content (volume fraction) is kept at 3% to 4%; the flame transfer temperature is 950°C to ensure that the porcelain body becomes iron-like black brown; the high fire holding temperature is 1270°C to 1290°C °C, the holding time is 10 minutes; the annealing holding temperature is 1020 °C, and the holding time is 45 minutes. The volume expansion coefficient is 100.5×10 -7 / °C. The water absorption test and thermal stability test of the obtained antique irony black brown cooking stoneware products are as follows:

[0034] Water absorption test:

...

Embodiment 2

[0039]Components and content in the formula of the present invention are:

[0040]

[0041]

[0042] Accurately formulate the weight of each raw material in the above formula, make mud sticks, form green bodies, or carve patterns on the green bodies according to the mud making method above. Or add color patterns, put them in a kiln and burn them with reduced flames. During the firing cycle in a reducing atmosphere, the carbon monoxide gas content (volume fraction) is kept at 3% to 4%; the flame transfer temperature is 950°C to ensure that the porcelain body becomes iron-like black brown; the high fire holding temperature is 1270°C to 1290°C °C, the holding time is 10 minutes; the annealing holding temperature is 1020 °C, and the holding time is 45 minutes. The volume expansion coefficient is 94.6×10 -7 / °C. The water absorption test and thermal stability test of the obtained antique irony black brown cooking stoneware products are as follows:

[0043] Water absorptio...

Embodiment 3

[0048] Components and content in the formula of the present invention are:

[0049]

[0050] Accurately formulate the weight of each raw material in the above formula, make mud sticks, form green bodies, or carve patterns on the green bodies according to the mud making method above. Or add color patterns, put them in a kiln and burn them with reduced flames. During the firing cycle in a reducing atmosphere, the carbon monoxide gas content (volume fraction) is kept at 3% to 4%; the flame transfer temperature is 950°C to ensure that the porcelain body becomes iron-like black brown; the high fire holding temperature is 1270°C to 1290°C °C, the holding time is 10 minutes; the annealing holding temperature is 1020 °C, and the holding time is 45 minutes. The volume expansion coefficient is 91.8×10 -7 / °C. The water absorption test and thermal stability test of the obtained antique irony black brown cooking stoneware products are as follows:

[0051] Water absorption test:

...

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Abstract

The invention relates to heat-resistant archaistic iron crude ceramic and a preparation method thereof. The heat-resistant archaistic iron crude ceramic comprises the following raw materials in partsby weight: calcined kaolin, water-washed kaolin, petuntse, iron-ore slag, feldspar and mullite. In the heat-resistant archaistic iron crude ceramic, the weight content of silicon dioxide is 54-56%, the weight content of aluminum oxide is 34-36%, and the weight content of ferric oxide is 5.0-6.0%; the density is 1.8-2.1 g/cm<3>, the water absorption rate is 3% or below, the volume expansion coefficient is 90-105*10<-7>/DEG C, and the thermal stability comprises that the crude ceramic passes through a test at the temperature of 200 DEG C for 3 times; the production cost is low, the expansion coefficient is low, the thermal stability is good, and the simple and rough aesthetic feeling of the crude ceramic is well reserved.

Description

technical field [0001] The invention belongs to the technical field of antique iron coarse pottery for cooking, and in particular relates to a heat-resistant antique iron coarse pottery and a preparation method. Background technique [0002] At present, the daily cooking ceramics produced in our country are mainly heat-resistant porcelain that can be cooked on fire in Chaozhou, Fujian, Jiangxi and other places, as well as Yixing purple sand ceramics in Jiangsu and new types of feldspar porcelain developed in Shahu Lake in recent years. It is mainly used for daily-use ceramics for cooking in electric hot pots. The volume expansion coefficient of heat-resistant porcelain in Chaozhou, Fujian, Jiangxi and other places is generally 0 to 30×10 -7 / ℃, so it has good thermal shock resistance and can be cooked directly on the fire. However, because of the large amount of imported spodumene and petalite feldspar as the main formula materials, its cost is quite high, and its product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13C04B33/132C04B33/138
CPCC04B33/131C04B33/1321C04B33/138C04B33/1324C04B2235/3463C04B2235/3418C04B2235/3217C04B2235/3272C04B2235/3232C04B2235/3201C04B2235/3208C04B2235/3206C04B2235/77C04B2235/96Y02P40/60
Inventor 麦潮棠汪大谷叶守明陈芳
Owner HUNAN HUALIAN CHINA IND
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