Carbon fiber shell and surface coating preparation method thereof

A surface coating and carbon fiber technology, applied in the direction of coating, etc., can solve the problems of insufficient surface interface adhesion, lower appearance quality of the product shell, uneven paint spraying film thickness, etc., to improve adhesion strength, three-dimensional appearance pattern color effect , The effect of reducing personnel investment

Active Publication Date: 2016-04-20
SUZHOU TAIKAN MACHINERY CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

For special structures (such as concave-convex font structures), traditional coating methods are difficult to achieve. Even if the appearance coating can be achieved,

Method used

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  • Carbon fiber shell and surface coating preparation method thereof
  • Carbon fiber shell and surface coating preparation method thereof
  • Carbon fiber shell and surface coating preparation method thereof

Examples

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preparation example Construction

[0027] refer to Figure 1 to Figure 4 , in one embodiment, a carbon fiber shell surface coating preparation method, comprising the following steps:

[0028] S1. Prepare a carbon fiber sheet 1, the surface 4 of the carbon fiber sheet 1 has a concave pattern 3 and / or a convex pattern 2, these patterns 2, 3 can be various fonts or text or graphic logos, etc.;

[0029] S2, performing surface corrosion treatment on the surface 4 of the carbon fiber sheet 1 with a corrosive treatment solution to improve the adhesion of the surface of the carbon fiber sheet 1 to the coating to be coated;

[0030] S3. Put the carbon fiber sheet 1 that has undergone surface corrosion treatment into an injection mold, pour paint into the injection mold, and integrally form a surface coating 5 on the surface 4 of the carbon fiber sheet 1 .

[0031] In a preferred embodiment, in step S1, the patterns 2 and 3 are obtained by performing thermocompression molding and / or CNC processing on the carbon fiber sh...

example

[0047] The carbon fiber is made of Japanese TORAY3K carbon fiber woven prepreg, cutting machine, hot press forming machine, CNC engraving machine, ultrasonic cleaning machine, sodium hydroxide solution, nitric acid solution, acetone (analytical pure), Bayer's coating reaction casting film forming machine , PU thermosetting coatings.

[0048] Carbon fiber sheet 1 preparation

[0049] Cut the existing Japanese TORAY3K carbon fiber prepreg cloth into 155*120mm, and interleave the carbon fiber cloth according to the requirements. ~10min, pressure 10~30kg, vacuum <1*10^-6MP. Then put the pre-pressed carbon fiber sheet 1 into the forming mold, and then close the mold and heat and solidify. The curing temperature is 135-150° C. and the pressure is 40-60 kg. Solidify for 10-15 minutes, cool the mold to room temperature, take out the product inside the mold to get the rough carbon fiber sheet; then put the rough carbon fiber sheet on the CNC fixture and fix the milling LOGO font, acc...

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Abstract

The invention discloses a surface coating preparation method of a carbon fiber shell. The surface coating preparation method comprises the following steps: S1, preparing a carbon fiber sheet, wherein recess and/or bulge patterns are formed on the surface of the carbon fiber sheet; S2, performing surface corrosion treatment on the surface of the carbon fiber sheet with corrosion treatment liquor to improve the adhesion of the surface of the carbon fiber sheet to a coating to be applied; and S3, putting the carbon fiber sheet subjected to surface corrosion treatment into an injection mold, pouring a coating material into the injection mold, and integrally forming a surface coating on the surface of the carbon fiber sheet. The invention further discloses a corresponding carbon fiber shell with the carbon fiber shell surface coating. According to the preparation method, the carbon fiber shell surface coating with high adhesion strength and uniform thickness can be obtained, and the quality for surface coating of the carbon fiber shell is effectively improved.

Description

technical field [0001] The invention relates to a carbon fiber shell and a method for preparing the surface coating thereof. Background technique [0002] At present, with the wide application of carbon fiber materials, it is a trend to apply carbon fiber to electronic products in the domestic electronics industry. Carbon fiber material not only has the elegant and firm characteristics of aluminum-magnesium alloy, but also has the plasticity of ABS engineering plastics, and its strength and thermal conductivity are superior to ordinary ABS plastics. It is used in more and more electronic products, including tablet computers, mobile phone casings, etc. Electronic product casings require more and more colorful appearances. [0003] At present, the structure of the shell of carbon fiber electronic products is relatively simple, and the appearance treatment is made by grinding and roughening the carbon fiber shell, and then adopting the traditional spraying method and dip coati...

Claims

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Application Information

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IPC IPC(8): B29C45/00B29C45/14B29C70/06B29C70/34
CPCB29C45/0005B29C45/14311B29C45/14631B29C45/14786B29C45/14795B29C70/06B29C70/342B29C2045/14868
Inventor 韩静黄启忠杜勇雷霆谢志勇陈建勋王长明谢守德
Owner SUZHOU TAIKAN MACHINERY CO LTD
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