Preparation method of ceramic cover plate

A ceramic cover and ceramic technology, which is applied in the field of ceramic processing, can solve problems such as easy breakage, high hardness, and lower product yield, and achieve the effects of reducing slurry viscosity, improving production efficiency, and improving product yield

Active Publication Date: 2019-10-22
北京钢研新冶精特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, ceramics have high hardness and are easy to break during processing, resulting in a decrease in product yield. At the same time, there are certain limitations on the cutting depth or the depth, shape and quantity of processing patterns.

Method used

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  • Preparation method of ceramic cover plate
  • Preparation method of ceramic cover plate
  • Preparation method of ceramic cover plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment provides a method for preparing a ceramic cover plate. The method for preparing a ceramic cover plate includes the following steps:

[0049] S1. Put the zirconia powder, organic solvent, and dispersant into the ball mill in proportion. After mixing for 1-12 hours, add binder and plasticizer, and continue mixing for 1-25 hours to prepare a slurry. This order can avoid The first combination of powder and binder can effectively reduce the viscosity of the slurry in the later stage.

[0050] Wherein, the mass percentage of zirconia powder is 45-60%.

[0051] The organic solvent is one or more of acetone, ethanol, butanol, toluene, xylene, bromochloromethane and diacetone, and the mass percentage of the organic solvent is 40-50%.

[0052] The binder is one or more of polyvinyl butyral, ethyl cellulose, polyvinyl alcohol, ether cellulose and polymethylpropylene, and the mass percentage of the binder is 3-15%.

[0053] The plasticizer is one or more of glycer...

Embodiment 2

[0068] This embodiment provides a method for preparing a ceramic cover plate, using the ceramic blank obtained in Embodiment 1, such as figure 1 As shown in a-1d, the preparation method of the ceramic cover plate also includes the following steps:

[0069] S6, performing CNC machining, grinding, and polishing on the ceramic blank obtained in S5 to obtain a ceramic cover plate with a groove pattern.

[0070] Specifically, the casting sheet in S4 includes a first casting sheet 1, a second casting sheet 2, a third casting sheet 3 and a fourth casting sheet 4; With heart pattern.

[0071] Specifically, the specific steps of grinding and polishing are as follows: adsorb the sample on the fixture, and perform surface grinding. The grinding parameters are: the diamond grinding head of the cutter d6-400#, each cutting 0.03mm, and grinding and leveling; then polishing, After polishing for 2 to 3 hours, the mirror effect will be achieved.

[0072] In this embodiment, 20 samples were ...

Embodiment 3

[0074] This embodiment provides a method for preparing a ceramic cover plate, using the ceramic blank obtained in Embodiment 1, such as figure 2 As shown in a-2d, the preparation method of the ceramic cover further includes the following steps:

[0075] S6. Filling the patterned grooves with a transparent covering layer 5, and performing CNC machining, grinding, and polishing on the obtained ceramic blank to obtain a ceramic cover plate with grooved patterns. For example, the pattern is a heart.

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Abstract

The invention relates to a preparation method of a ceramic cover plate, belongs to the technical field of ceramic processing, and solves the problems of low product yield and low production efficiencyin the prior art. The preparation method of the ceramic cover plate comprises the following steps: putting a zirconium oxide powder, an organic solvent and a dispersant into a ball mill proportionally, mixing for 1-12h, then adding an adhesive and a plasticizer, and continuing mixing for 1-25h to obtain a slurry; defoaming the slurry, and stopping defoaming when the viscosity of the slurry is increased to 7500-15000cPs; adjusting the scraper height of a casting machine, and casting to obtain a cast sheet; cutting the cast sheet, and punching out a pattern on a single layer of ceramic cast sheet by using a punch or a punch press with a patterned mould; laminating cast sheets, then wrapping after lamination, performing plastic packaging, and laminating a plastic packaged sample; placing a laminated sample in a sintering furnace, performing segmental degreasing and sintering to obtain a patterned ceramic blank. The preparation method is applicable to preparation of the ceramic cover plate.

Description

technical field [0001] The invention relates to the technical field of ceramic processing, in particular to a method for preparing a ceramic cover plate. Background technique [0002] With the comprehensive popularization of consumer electronic products, the degree of homogeneity of products is getting higher and higher, and the differentiation of the material and structure of the appearance parts of electronic products has become a new source of power to attract consumers. Compared with metal, glass and plastic, ceramics have the advantages of wear resistance, not easy to break, and good texture, and have become the new favorite of 3C consumer electronics. However, the current ceramic color system is single, so how to realize the differentiation of pattern design and color decoration is the key to cater to consumers. [0003] In order to solve this problem, ceramic cover plate design manufacturers adopt processes such as spraying colored ink, paint or laser coating to real...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/622C04B35/626C04B35/638
CPCC04B35/48C04B35/622C04B35/62605C04B35/638C04B2235/6025C04B2235/6562C04B2235/6567C04B2235/661
Inventor 王峰贺智勇千粉玲刘秀
Owner 北京钢研新冶精特科技有限公司
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