The invention discloses a compound type light heat-preservation decorative
ceramic external wall tile and a manufacturing method of the compound type light heat-preservation decorative
ceramic external wall tile. The external wall tile is composed of three
layers, the lower layer is a surface decorative layer, the middle layer is a closed air hole heat-preservation layer, and the upper layer is an
open air hole structural layer. All materials are mixed, distributed three times according to
layers (the lower layer, the middle layer and the upper layer), formed at one time, dried and sintered through
laser, edges are
cut off, and the surface is decorated (in an ink-jet printing or 3D-printing mode). Uniform and fine sealed air holes can be formed in the compound type light heat-preservation decorative
ceramic external wall tile, the water
absorption rate is 0.3-2 percent, the air hole rate reaches 40-60 percent, the extension strength is 60-80 MPa, the heat conduction coefficient is 0.2-0.7 W / (M.K), and the compound type light heat-preservation decorative ceramic external wall tile has good heat-preservation, heat-insulating, waterproof and
flame retardant properties, has a decorative effect, is firmly combined with a wall body, is convenient to construct, and is safe and reliable to use.