A preparation method of ion exchange reinforced prestressed vitrified brick and its ceramic products
A technology of ion exchange and vitrified bricks, which is applied in the field of building ceramic materials, can solve problems such as the difficulty in meeting the needs of vitrified brick ceramic materials, and achieve the effects of saving high-quality ceramic raw material resources, preventing premature cracking and damage, and reducing production costs
Active Publication Date: 2021-03-30
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 architectural ceramics with a large amount and a wide range.
In addition, the existing prestressed reinforcement methods are difficult to meet the needs of the use of vitrified tile ceramic materials
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[0021] 1. The vitrified brick body of the embodiment of the present invention is composed of raw materials according to parts by weight: kaolin 30, quartz 30, albite feldspar 35, Datong sandstone 5. Its chemical composition is: SiO 2 65wt%, Al 2 o 3 20wt%, Fe 2 o 3 1wt%, (MgO+CaO)2wt%, Na 2 O 6wt%, K 2 O 1wt%, I.L 5wt%.
[0022] 2. The preparation method of the vitrified brick body in the embodiment of the present invention is as follows:
[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 made of metal film compact, the molding pressure is 15Mpa, the pressure is kept for 30s, and the vitrified brick body with length 100mm×width 20mm×thickness 6mm is obtained by pressing on one side.
[0024] 3. The preparation method of the ion exchange reinforced prestressed vitrified brick accordi...
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Abstract
The invention discloses a preparation method of ion exchange reinforced prestressed vitrified bricks. The method comprises the following steps: placing the sintered vitrified bricks in the subsequentcooling process into an alkali metal molten salt, and performing heat-preservation treatment to realize ion exchange on the material surface; after the heat-preservation treatment is completed, takingout the vitrified bricks, performing natural cooling to room temperature, and performing washing by using water to prepare the ion exchange reinforced prestressed vitrified brick product. In addition, the invention also discloses ceramic products obtained by the preparation method of the above ion exchange reinforced prestressed vitrified bricks. The method provided by the invention utilizes alkali metal ions with a larger radius in the molten salt to replace sodium metal ions with a smaller radius on the surfaces of the vitrified bricks, stronger compressive stress is formed at the surfacesin the process of cooling from a high temperature to a normal temperature, and therefore the prestressed vitrified brick ceramic material with high strength and good reliability is formed; and the preparation method and application production are simple and easy to control and low in cost, facilitate promotion and applications, and have very high practical value and application prospects.
Description
technical field [0001] The invention relates to the technical field of architectural ceramic materials, in particular to a method for preparing reinforced prestressed vitrified bricks and ceramic products thereof. Background technique [0002] Vitrified tiles have the characteristics of smooth surface, easy cleaning and maintenance, wear resistance and corrosion resistance, low water absorption, good decorative effect, wide application, large consumption, etc., and are called "the king of floor tiles". With the increasing development of ceramic technology, large-scale vitrified tiles have become the mainstream of living room decoration. However, the increase in the specifications of ceramic products will affect the strength of the building ceramic body, which will bring certain difficulties to subsequent production (glazing, firing, etc.). Therefore, improving the mechanical strength of vitrified bricks is of great significance for improving the safety, reliability and dura...
Claims
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IPC IPC(8): C04B33/13C04B41/80
Inventor 李月明包亦望孙熠沈宗洋
Owner JINGDEZHEN CERAMIC UNIV
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