Preparation method of high-strength ion exchange pre-stressed albite porcelain and porcelain product thereof

An ion exchange and ceramic product technology, which is applied to the preparation method of reinforced prestressed albite porcelain and the field of ceramic products, can solve the problem that it is difficult to popularize and apply advanced daily-use fine porcelain, and it is difficult to meet the use requirements of daily-use ceramic materials, etc. problems, to achieve high practical value and application prospects, preparation methods and application production are simple and easy to control, and the effect of improving thermal stability

Inactive Publication Date: 2019-04-12
JINGDEZHEN CERAMIC UNIV
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Problems solved by technology

However, these methods are limited by factors such as construction equipment and production costs, and it is difficult to carry out large-scale promotion and application in the field of high-grade daily-use fine porcelain.
In addition, the existing prestressed reinforcement methods are difficult to meet the needs of daily ceramic materials

Method used

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  • Preparation method of high-strength ion exchange pre-stressed albite porcelain and porcelain product thereof
  • Preparation method of high-strength ion exchange pre-stressed albite porcelain and porcelain product thereof
  • Preparation method of high-strength ion exchange pre-stressed albite porcelain and porcelain product thereof

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Embodiment Construction

[0021] 1. The albite porcelain body of the embodiment of the present invention is composed of its raw materials in parts by weight: porcelain stone 30 (containing 60wt% of quartz and 40wt% of albite), 5 of quartz, 50 of kaolin, and 15 of feldspar. Its chemical composition is: SiO 2 70wt%, Al 2 o 3 20wt%, Fe 2 o 3 0.1wt%, (MgO+CaO)1.7wt%, Na 2 O 2wt%, K 2 O 0.4wt%, I.L5.8wt%.

[0022] 2. The preparation method of the albite porcelain body of the embodiment of the present invention is:

[0023] Mix the raw materials according to the above formula, crush the sample, wet ball mill, sieve to remove iron, dry at 90°C, add 6% water to granulate, and pass through a 60-mesh sieve to obtain powder; then the powder The material is a metal film compact, the molding pressure is 20Mpa, the pressure is kept for 30s, and the albite porcelain body sample with a length of 40mm×width 10mm×thickness 5mm is obtained by pressing on one side.

[0024] 3. The preparation method of the high-st...

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Abstract

The invention discloses a preparation method of high-strength ion exchange pre-stressed albite porcelain. The albite porcelain which is in the subsequent cooling process after sintering is put in alkali metal molten salt for heat preservation treatment to achieve ion exchange on the surface of the material; after the heat preservation treatment, the albite porcelain is taken out and naturally cooled to room temperature, and a high-strength ion exchange pre-stressed albite porcelain product is obtained after washing. In addition, the invention also discloses the porcelain product prepared by adopting the preparation method of the high-strength ion exchange pre-stressed albite porcelain. The smaller-radius sodium metal ions on the surface layer of the albite porcelain are replaced by the larger-radius alkali metal ions in the molten salt, a strong compressive stress is formed on the surface during the process of cooling from high temperature to normal temperature, and accordingly the pre-stressed albite porcelain ceramic material high in strength and good in heat stability is formed. The preparation method makes application and production simple and easy to control, is low in cost, is conductive to popularization and application and has a very high practical value and application prospect.

Description

technical field [0001] The invention relates to the technical field of daily-use ceramic materials, in particular to a preparation method of reinforced prestressed albite porcelain and ceramic products thereof. Background technique [0002] Albite porcelain, characterized by whiteness and fineness, high regularity, and good transparency, is a high-grade daily-use fine porcelain made of porcelain stone containing albite as the main raw material. The raw materials used in this porcelain are of good quality, abundant reserves, and cheap price, so the cost is low, and it has good economic and social benefits. It also has important academic value in the research of porcelain making technology. However, albite has a narrow melting range, low viscosity at high temperature, and is easy to deform, resulting in the disadvantages of low strength and poor thermal stability in albite porcelain products. Therefore, improving the mechanical strength and thermal stability of albite porcela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/19C04B41/80
CPCC04B35/19C04B41/0027C04B41/009C04B41/80C04B2235/3201C04B2235/3206C04B2235/3208C04B2235/3272C04B2235/3418C04B2235/349C04B2235/96C04B2235/9607
Inventor 李月明包亦望孙熠沈宗洋
Owner JINGDEZHEN CERAMIC UNIV
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