Flaky silver glossy ceramic rock plate and preparation method thereof
A silver glossy, ceramic technology used in the field of ceramic tile production and manufacturing
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[0053] The preparation method of the flaky silver luster ceramic rock slab of the present invention is different from obtaining glaze crystals to achieve flash, but uses non-radioactive zirconium slices and controls the composition and parameters of the zirconium slices to regulate reflection, thereby reducing the glaze surface. On the basis of defects, the difference in refractive index between the zirconium sheet and the glass phase formed after firing the transparent glaze promotes the glaze surface on the zirconium sheet decoration to have a reflective effect, thereby forming a flake silver metallic luster decoration.
[0054] In addition, the Mohs hardness scale of the zirconium sheet in the present invention is between 6.5 and 7.5. Compared with the traditional polished glaze surface (Mohs hardness level is 3.5-4.0), the preparation method of the present invention spreads the zirconium flakes on the lower layer of the transparent glaze polish layer, and at least part of t...
Embodiment 1
[0057] The preparation method of the flaky silver luster ceramic rock plate comprises the following steps:
[0058] Step 1. Press common ceramic base material into adobe;
[0059] Step 2. Drying the adobe in a drying kiln for 1 to 1.2 hours, and controlling the moisture content of the adobe within 0.5wt%;
[0060] Step 3. Spray the surface glaze on the surface of the brick; the chemical composition of the surface glaze includes: in terms of mass percentage: loss on ignition: 3.00~4.00%, SiO 2 : 49.98~50.78%, Al 2 o 3 : 29.87~31.45%, Fe 2 o 3 : 0.22~0.42%, TiO 2 : 0.05~0.07%, CaO: 0.65~0.97%, MgO: 0.13~0.24%, K 2 O: 4.78~5.52%, Na 2 O: 2.58~3.34%, P 2 o 5 : 0.26~0.45%, ZrO 2 : 5.03~6.45%; the specific gravity of the surface glaze is 1.40~1.43g / cm 3 , the glaze amount is 500~600g / m 2 ;
[0061] Step 4. Inkjet printing patterns on the surface of the adobe after applying the glaze;
[0062] Step 5. Sprinkle zirconium flakes whose main phase composition is tetragonal ...
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