Preparation method of zirconia ceramic mobile phone backboard with black gold sand effect

Abstract

The invention discloses a preparation method of a zirconia ceramic mobile phone backboard with a black and golden sand effect. The ceramic is formed by dispersing black and golden sand-like points in a matrix. The preparation method comprises the following steps: adding different particle grades of white zirconia ceramic particles with the alumina content of 10-30% into black zirconia ceramic granulation powder with specific components, mixing, carrying out dry pressing molding to obtain a rear cover green body in 2D, 2.5 D and 3D shapes, and carrying out isostatic pressing, degreasing, sintering, grinding, CNC (computer numerical control) and polishing to obtain the ceramic rear cover. The method is simple in preparation technology, the production process is easy to control, and large-scale mass production is easy to realize; and the appearance is attractive, the surface has a jade-like effect, and the market individuation requirement can be met.

Description

technical field [0001] The invention relates to the field of ceramic products, in particular to a method for preparing a black sand effect zirconia ceramic mobile phone back plate. Background technique [0002] In recent years, the research and application of ceramic mobile phone backplanes have developed from pure black and white to blue, green, yellow, red and other color effect ceramics, such as the pink zirconia ceramics described in CN108585844, the sapphire ceramics described in CN108275996 Colored zirconia ceramics, blue-green zirconia ceramics described in 108793996, red ceramics described in CN109400148, etc. [0003] In addition to the color aspect of the research on the appearance of ceramic mobile phone backplanes, other researches currently involved in reports include: 109640563 developed a color ceramic and shell and its preparation method, and realized the surface effect of different color ceramics contrasting colors by casting method ; In CN111087241A, a kin...

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Problems solved by technology

However, there are few reports on the development of the surface effect of the ceramic body. In order to further enrich the surface effect of zirconia ceramics and make it personalized and diversified, this application develops a ceramic mobile phone back cover with a black gold sand surface effect, while meeting market demand. , to further promote the industry development of ceramic mobile phone backplane

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