Light porous daily fine porcelain and preparation method thereof

A daily-use, light-weight technology, applied in ceramic products, applications, household appliances, etc., can solve the problems of low bending strength and high water absorption, and achieve the effects of low water absorption, high mechanical strength, and high closed pore content

Active Publication Date: 2020-09-01
JINGDEZHEN CERAMIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the need to use foaming agent or foam stabilizer in the prior art to prepare lightweight porous ceramics for daily use and prepare Porous daily-use ceramics have the defects of high water absorption and low bending strength, so as to provide a lightweight porous daily-use fine porcelain

Method used

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  • Light porous daily fine porcelain and preparation method thereof
  • Light porous daily fine porcelain and preparation method thereof
  • Light porous daily fine porcelain and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Weigh various raw materials according to the formula: kaolin 40%, quartz 34%, calcite 4%, burnt talc 3%, bone char 3%, alumina powder 16%, and its chemical composition is: SiO 2 57.36%, Al 2 o 3 35.32%, K 2 O 0.16%, Na 2 O 0.35%, CaO 4.46%, MgO 1.02%, P 2 o 5 1.33%.

[0030] Daily-use fine porcelain is prepared by the following method: mix and ball-mill each raw material until more than 80% of the particles have a particle size below 10 μm, then pass the ball-milled raw materials through a double-layer vibrating sieve of 100 mesh and 180 mesh, and pass through the double-layer vibrating sieve The slurry is deironed twice in an iron remover with a magnetic field strength of 20,000 gauss, and then press-filtered to form a mud cake with a water content of 23-25%, and then smelted three times under the condition of a vacuum of 0.095MPa. Then roll forming, drying under the condition of a drying temperature of 100°C so that the moisture content of the green body after...

Embodiment 2

[0034] Weigh various raw materials according to the formula: kaolin 38%, quartz 35%, calcite 5%, burnt talc 3%, bone char 1%, alumina powder 18%, and its chemical composition is: SiO 2 57.51%, Al 2 o 3 36.70%, K 2 O 0.16%, Na 2 O 0.35%, CaO 3.82%, MgO 1.02%, P 2 o 5 0.44%.

[0035] The preparation method of daily-use fine porcelain is the same as that of Example 1, except that the firing step is the difference.

[0036] The specific process of firing is as follows: first, the system is raised from room temperature to 1180°C at 2°C / min, and kept at 1180°C for 2 hours, then the system is raised from 1180°C to 1350°C at 10°C / min, and heated at 1350°C Keep it warm for 1 hour, then cool down to room temperature naturally to get light porous fine porcelain for daily use.

Embodiment 3

[0038] Weigh various raw materials according to the formula: kaolin 36%, quartz 38%, calcite 3%, burnt talc 4%, alumina powder 19%, and its chemical composition is: SiO 2 59.44%, Al 2 o 3 36.51%, K 2 O 0.16%, Na 2 O 0.35%, CaO 2.60%, MgO 1.47%.

[0039] The preparation method of daily-use fine porcelain is the same as that of Example 1, except that the firing step is the difference.

[0040] The specific process of firing is as follows: first, the system is raised from room temperature to 1150°C at 3°C / min, and kept at 1150°C for 1.5h, then the system is raised from 1150°C to 1280°C at 9°C / min, and heated at 1280°C ℃ for 1 hour, and then naturally cooled to room temperature to obtain light porous fine porcelain for daily use.

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Abstract

The invention provides light porous daily fine porcelain. The light porous daily fine porcelain is prepared from the following chemical components in percentage by weight: 54-64% of SiO2, 30-37% of Al2O3, 0.1-1% of K2O, 0.2-0.5% of Na2O, 1-5% of CaO, 1-3% of MgO and 0-1.5% of P2O5. Any pore forming agent or foam stabilizer does not need to be added in the preparation process of the porcelain body,a plurality of closed pores can be formed through firing, and the fine porcelain with low volume density, high mechanical strength and high light transmittance is obtained.

Description

technical field [0001] The invention relates to the field of daily-use ceramics, in particular to a lightweight porous daily-use fine porcelain and a preparation method thereof. Background technique [0002] Daily-use ceramics are commonly used items in people's homes. They have been loved by ordinary people for thousands of years, carry profound historical heritage, and are also witnesses to the development of civilization. Daily-use porcelain is also one of the indispensable daily necessities in people's daily life. Daily-use porcelain can be divided into stoneware, ordinary porcelain and fine porcelain. The water absorption rate of daily-use fine porcelain is generally lower than 0.5%, and it has high mechanical strength and good light transmission. The section is shell-shaped and finely made. Fine porcelain for daily use has been favored by consumers due to its many excellent properties. However, with the continuous improvement of living standards, people put forward hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/14C04B33/13C04B33/16C04B33/135C04B33/34C04B35/64C04B38/00
CPCC04B35/14C04B33/131C04B33/16C04B33/1355C04B33/34C04B35/64C04B38/00C04B2235/3217C04B2235/3201C04B2235/3208C04B2235/3206C04B2235/3427C04B2235/442C04B2235/6562C04B2235/6567C04B2235/96C04B2235/77C04B2235/9646C04B38/0067Y02P40/60
Inventor 苗立锋江伟辉包镇红梁健刘健敏吴倩劳新斌江峰
Owner JINGDEZHEN CERAMIC UNIV
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