Dark-color low-roughness glazed lubricating ceramic rock plate and preparation method thereof

The invention relates to a deep-color low-roughness glazed lubricating ceramic rock plate and a preparation method thereof. The preparation method comprises the following steps: (1) pressing a green body, wherein the mass outflow time of powder is 34-36 S, the repose angle is 27-30 degrees, and the bulk density is 0.95-0.98 g/cm < 3 >; (2) green body drying: the temperature is 160-180 DEG C, and the drying time is 25 minutes; (3) spraying ground glaze: spraying the ground glaze by a bell jar, wherein the glazing amount is 600g/m < 2 >; (4) overglaze spraying: overglaze spraying is carried out in a bell jar, the glazing amount is 300 g/m < 2 >, the glossiness is 20-25 degrees after single-sided glaze is sintered, and the surface roughness Ra is 1.0-1.6 m; (5) ink-jet printing, wherein the color is a dark color system, and the total gray level of ink is greater than 200; (6) spray printing of a penetration enhancer: spraying the penetration enhancer at high pressure, wherein the spraying dosage is 50g/m < 2 >;