Preparation process of zirconia ceramic mobile-phone backplane without grinding and polishing
A technology of zirconia ceramics and preparation technology, which is applied in the field of preparation technology of mobile phone backplanes, which can solve the difficulty in meeting consumers' requirements for the smoothness and moistness of mobile phone backplanes, and the difficulty of grinding and polishing zirconia ceramic mobile phone backplanes, etc. question
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Embodiment 1
[0019] A preparation process for a grinding-free and polished zirconia ceramic mobile phone back plate, comprising the following steps:
[0020] S1, 3mol% yttrium-stabilized zirconia powder, wood powder activated carbon, and additives are mixed according to a weight ratio of 89:8:3 to form a mixture A, and the mixture A and deionized water are added to a ball mill for mixing and ball milling according to a weight ratio of 45:55. Granules, molded into a zirconia ceramic blank, the additive is composed of polyvinyl alcohol, glycerin, and carboxymethyl cellulose in a weight ratio of 5:2:3, and the particle size of the wood powder activated carbon is 18-38 μm;
[0021] S2. Sintering the zirconia ceramic green body obtained in step S1 at 850° C. for 3 hours to prepare a porous zirconia ceramic green body;
[0022] S3. Processing the zirconia ceramic green body obtained in step S2 into a zirconia ceramic mobile phone back plate green body of required size through a numerical control...
Embodiment 2
[0027] A preparation process for a grinding-free and polished zirconia ceramic mobile phone back plate, comprising the following steps:
[0028] S1, 3mol% yttrium-stabilized zirconia powder, wood powder activated carbon, and additives are mixed according to a weight ratio of 94:5:1 to form a mixture A, and the mixture A and deionized water are added to a ball mill for mixing and ball milling according to a weight ratio of 50:50. Granules, molded into a zirconia ceramic blank, the additive is composed of polyvinyl alcohol, glycerin, and carboxymethyl cellulose in a weight ratio of 7:1:2, and the particle size of the wood powder activated carbon is 18-38 μm;
[0029] S2, sintering the zirconia ceramic green body obtained in step S1 at 870° C. for 2.8 hours to prepare a porous zirconia ceramic green body;
[0030] S3. Processing the zirconia ceramic green body obtained in step S2 into a zirconia ceramic mobile phone back plate green body of required size through a numerical contr...
Embodiment 3
[0035] A preparation process for a grinding-free and polished zirconia ceramic mobile phone back plate, comprising the following steps:
[0036] S1, 3mol% yttrium-stabilized zirconia powder, wood powder activated carbon, and additives are mixed according to a weight ratio of 91:7:2 to form a mixture A, and the mixture A and deionized water are added to a ball mill for mixing and ball milling according to a weight ratio of 47:53. Granules, formed into a zirconia ceramic blank, the additive is composed of polyvinyl alcohol, glycerin, and carboxymethyl cellulose in a weight ratio of 6:2:2, and the particle size of the wood powder activated carbon is 18-38 μm;
[0037] S2, sintering the zirconia ceramic green body obtained in step S1 at 890° C. for 2.6 hours to prepare a porous zirconia ceramic green body;
[0038] S3. Processing the zirconia ceramic green body obtained in step S2 into a zirconia ceramic mobile phone back plate green body of required size through a numerical contr...
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