Durable bone china and preparation method thereof

A bone china, alumina technology, applied in clay products, other household appliances, household appliances, etc., can solve the problem of limited thermal shock resistance and achieve the effect of simple composition

Inactive Publication Date: 2014-01-29
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the improvement in therma

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1

[0022] The reinforced bone china described in Example 1 is prepared from the following raw materials in weight percentage (wt%):

[0023] Calcined animal bone ash 38.0%, potash feldspar 11.0%, quartz sand 4.0%, Longyan soil 11.0%, Suzhou soil 6.0%, GF88 clay 5.0%, K18 clay 6.0%, Yixian soil 5.0%, α-alumina powder 2.0 %, limestone 7.0%, waste porcelain powder 5.0%.

[0024] According to the above formula ingredients, ball milling, sieving, iron removal, staleness, mud squeezing, degumming, forming, drying, trimming, sintering and a series of production processes, the firing temperature is 1230~1290℃, and the bone is obtained after cooling. Porcelain biscuit.

[0025] The preparation method of the bone china blank is as follows:

[0026] The mixture is ball milled and added to the ball mill at the ratio of material: ball: water = 1:2.5:1, ball milled for 16.0 hours, passed through a 100-mesh sieve, used a 18,000 Gauss strength iron remover to remove iron, aged for 4 d...

Example Embodiment

[0027] Example 2

[0028] The reinforced bone china described in Example 2 is prepared from the following raw materials in weight percentage (wt%):

[0029] Calcined animal bone ash 40.0%, potash feldspar 10.5%, quartz sand 6.0%, Longyan soil 11.5%, Suzhou soil 5.5%, GF88 clay 4.5%, K18 clay 6.5%, Yixian soil 4.5%, α-alumina powder 1.0 %, limestone 6.0%, waste porcelain powder 4.0%.

[0030] According to the above formula ingredients, ball milling, sieving, iron removal, staleness, mud squeezing, degumming, forming, drying, trimming, sintering and a series of production processes, the firing temperature is 1230~1290℃, and the bone is obtained after cooling. Porcelain blanks.

[0031] The preparation method of the bone china blank is as follows:

[0032] The mixture is ball milled and added to the ball mill at the ratio of material:ball:water=1:2.5:1, ball milled for 17.0 hours, passed through a 100-mesh sieve, used a 18,000 Gauss strength iron remover to remove iron, aged for 5 days, ...

Example Embodiment

[0033] Example 3

[0034] The reinforced bone china described in Example 3 is prepared from the following raw materials in weight percentage (wt%):

[0035] Calcined animal ashes 42.0%, potash feldspar 10.0%, quartz sand 5.0%, Longyan soil 12.0%, Suzhou soil 4.0%, GF88 clay 5.5%, K18 clay 5.0%, Yixian soil 3.0%, α-alumina powder 3.0 %, limestone 7.5%, waste porcelain powder 3.0%.

[0036] According to the above formula ingredients, ball milling, sieving, iron removal, staleness, squeezing, degumming, molding, drying, trimming, sintering and a series of production processes, the sintering temperature is 1230 ~ 1290 ℃, and the bone china green body is prepared .

[0037] The preparation method of the bone china blank is as follows:

[0038] The mixture is ball milled and added to the ball mill at the ratio of material: ball: water = 1:2.5:1, ball milled for 18.0 hours, passed through a 100-mesh sieve, used an iron remover with 18,000 Gauss strength to remove iron, aged for 7 days, squee...

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Abstract

The invention relates to daily bone china, and in particular relates to durable bone china and a preparation method of the durable bone china. The green body of the durable bone china is prepared from the following raw materials in percentage by mass: 38.0-44.0% of animal ash, 3.5-7.5% of quartz sand, 7.0-12.0% of potassium feldspar, 4.0-8.0% of Suzhou clay, 8.0-12.0% of Longyan clay, 2.0-6.0% of Yi County clay, 2.0-7.0% of GF88 clay, 3.0-8.0% of K18 clay, 0.5-4.0% of alpha-aluminium oxide, 5.0-9.0% of limestone, and 0.5-8.0% of waste porcelain powder. The preparation method of the durable bone china comprises the following steps of: preparing a mixture from the above raw materials according to percentage by mass, ball-milling the mixture in a ball mill for 14.0-20.0 hours according to the mass ratio of the raw material to balls to water of 1:2.5:1, sieving the slurry using a 100-mesh sieve, removing ion, aging the resulting product for 3-7 days, squeezing the mud, adding certain water and dispersant into a mud cake for dispergation, carrying out slip casting, drying and trimming, firing the resulting product at 1230-1290 DEG C for 1.5-3.0 hours, and cooling the fired product to obtain the biscuit firing billet of the bone china. By adopting the durable bone china provided by the invention, the technical problems of the mutual interaction of the whiteness, the jade sense and the transparency, and the mutual interaction of the thickness, the strength, the hardness, and the thermal stability are solved.

Description

technical field [0001] The invention relates to a daily-use bone china, in particular to a reinforced bone china and a preparation method thereof. technical background [0002] Bone china, formerly known as bone china, is a high-grade porcelain that originated in England in the 18th century. It is mainly made of animal ashes, porcelain stones, clay and other raw materials. Bone china porcelain is fine and smooth, with smooth glaze and soft luster, high transparency and certain mechanical strength [Non-Patent Reference 1]; reputation. As the most high-grade daily-use porcelain recognized in the world, its application is quite extensive, such as tableware, tea sets, vases, etc., and is favored by consumers. [0003] At present, the raw materials used in the production of bone china are generally prepared from well-known animal ashes, clay, silica, feldspar and other raw materials. The products are made by high-temperature bisque firing and low-temperature glaze firing. The ...

Claims

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Application Information

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IPC IPC(8): C04B33/13C04B33/22
Inventor 张垠杨玉泉
Owner NANJING UNIV OF TECH
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