A metal-coated glazed ceramic tile and its preparation method
A technology of metal plating and ceramic tiles, applied in the direction of ceramic layered products, chemical instruments and methods, layered products, etc., can solve the problems of lack of change, dull products, single decorative effect, etc., and achieve simple preparation process and stable product quality , the effect of high degree of mechanization
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Embodiment 1
[0018] Preparation technique of the present invention comprises the steps:
[0019] 1. Processing adobe;
[0020] 2. Print the pattern layer on the upper surface of the adobe; of course, various methods such as drawing, glaze stacking or decals can also be used for pattern preparation;
[0021] 3. Sprinkle the frit powder on the upper surface of the pattern, and leave the position corresponding to the outline of the pattern edge blank, thus forming a frit powder layer with multiple grooves. The powder fineness of the frit powder is 80~200 Its main components are as follows (mass percentage):
[0022] SiO 2 55~65% MgO 0.2~0.3% Al 2 o 3 8~9%K 2 O 2~4%
[0023] Fe 2 o 3 0.1 ~0.2% Na 2 O 1~2% CaO 2~3% ZnO 2.5~4%
[0024] BaO 2.5~4% ZrO 2 0.1~0.5% B 2 o 3 15~20%
[0025] The mesh number of frit laying wire mesh is 40~60 mesh.
[0026] 4. Fire the ceramic tiles obtained in the above steps at a temperature of 1000-1050°C for 90-120 minutes;
[0027] 5. Plating ...
Embodiment 2
[0032] The steps are basically the same as in Embodiment 1, except that step 3a is performed after step 3, that is, the upper surface area of the brick adobe corresponding to the groove is processed so that it produces a surface with concave and convex alternates like a frosted surface, and step 7 A rotating brush made of silicon carbide is used to grind the metal coating in the groove, so that the metal coating remains only in the concave part of the surface. Compared with the first embodiment, the second embodiment uses mechanical grinding to process the metal coating in the groove, which improves the production efficiency. In addition, before firing, the upper surface of part of the bricks is processed to make it produce a rough surface like a frosted surface, and the metal coating on the convex part of the surface is polished off by controlling the rotating brush, so that the metal coating is only Residue in the concave part, thereby greatly improving the control of the ...
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