Co-firing method-based luminous ceramic tile preparation process, and luminous ceramic tile prepared by same

Abstract

The invention relates to the technical field of ceramics, and discloses a light-emitting ceramic tile based on a co-firing method preparation process, and the preparation process thereof. The preparation process comprises a luminous particle pre-sintering step and a finished product preparation step, wherein the luminous particle pre-sintering step comprises: S1) preparing luminous slurry; S2) putting the luminous slurry into an electric furnace, and presintering at 600-700 DEG C to remove impurities, so as to obtain luminous particles; and the preparation step of the finished product comprises: P1) applying a first viscous material on the surface of a green body to form a lower viscous layer on the green body; P2) applying the luminous particles to form a luminous layer on the green body;P3) applying transparent glaze to form a transparent glaze layer on the green body, and P4) placing the green body in a kiln, and firing at 1100-1250 DEG C to prepare the luminous ceramic tile. The luminous layer can prevent liquid in the transparent glaze from eroding and damaging particles of luminous powder in a fired molten state, and the prepared ceramic product is high in luminous brightness and long in luminous life.

Description

technical field [0001] The invention relates to the technical field of ceramics, and discloses a preparation process of luminous ceramic bricks based on a co-firing method and the prepared luminous ceramic bricks. Background technique [0002] With the continuous improvement of living standards, people have higher and higher requirements for architectural ceramics, not only pursuing their practicability, but also paying more and more attention to their decoration and functionality. Luminescent ceramic tiles introduce afterglow luminescent powder into ceramics, so that ceramic products have the characteristics of continuous luminescence under dark conditions after absorbing external energy. [0003] Luminescent ceramic tiles can be widely used in various public places, and can be used as a light source or guide in case of power failure or emergency. [0004] For the luminescent ceramic tiles of the prior art, the luminescent powder with luminescent effect fired at high tempe...

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Problems solved by technology

[0004] For the luminescent ceramic tiles of the prior art, the luminescent powder with luminescent effect fired at high temperature is added to the glaze during the batching, and then fired together with the glaze layer at high temperature. The flux in the luminescent powder erodes the particles of the luminescent powder; the luminous performance of the luminescent powder is attenuated after being melted after the second high-temperature firing and does not have the same luminous efficacy as the original, the afterglow time is short, and the luminous life of the obtained product is short.

[0005] In addition, since the synthesis temperature of luminescent powder is generally above 1300°C, the luminescent powder has high refractoriness and is not easy to be melted and flattened in the glaze layer, resulting in uneven glaze surface.

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