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Spraying treatment method of mobile phone shell

A technology of mobile phone shell and treatment method, which is applied in the direction of pretreatment surface, coating, and device for coating liquid on the surface, etc., which can solve the problems of unfavorable popularization and application, and achieve broad application prospects, easy cleaning and recycling, and high abrasion resistance The effect of stroke strength

Inactive Publication Date: 2016-07-20
LIUZHOU YIJIAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is not conducive to promoting the application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] First of all, clean the shell of the mobile phone to facilitate subsequent spraying. Then, the glass shell of the mobile phone shell is heated to reduce the specific resistance and conduct electricity. Specifically, the heating temperature of the glass shell of the mobile phone casing is set to 150°C. Subsequently, paint powder is sprayed on the inner wall of the mobile phone casing. During this process, the spraying voltage is 50KV, and the machine speed is 6r / min. In order to make the spraying effect more stable, the electrostatic 16-station spray gun internal spraying machine can be used to spray the powder coating. Moreover, the powder suction airflow of the spray gun is 0.23Mpa, and the powder spray airflow is 0.18Mpa. At the same time, considering the uniform effect of spraying, the spray gun should be sprayed at least three times. Next, heat the sprayed mobile phone case to solidify the coating powder to form a film. Specifically, a 48-station chain-type tem...

Embodiment 2

[0011] First, clean the phone case. Then, the glass shell of the mobile phone shell is heated to reduce the specific resistance and conduct electricity. Specifically, the heating temperature for the glass shell of the mobile phone casing is 400°C. Subsequently, paint powder is sprayed on the inner wall of the mobile phone casing. During this process, the spraying voltage is 70KV, and the machine speed is 20r / min. In order to make the spraying effect more stable, the electrostatic 16-station spray gun internal spraying machine can be used to spray the powder coating. Moreover, the powder suction airflow of the spray gun is 0.28Mpa, and the powder spray airflow is 0.2Mpa. At the same time, considering the uniform effect of spraying, the spray gun should be sprayed at least three times. Finally, the sprayed mobile phone shell is heated to solidify the coating powder to form a film. Specifically, a 48-station chain-type temperature-controlled curing machine can be used to cur...

Embodiment 3

[0013] First of all, clean the shell of the mobile phone to facilitate subsequent spraying. Then, the glass shell of the mobile phone shell is heated to reduce the specific resistance and conduct electricity. Specifically, the heating temperature of the glass shell of the mobile phone casing is set to 150°C. Subsequently, paint powder is sprayed on the inner wall of the mobile phone casing.

[0014] During this process, the spraying voltage is 50KV, and the machine speed is 15r / min. In order to make the spraying effect more stable, the electrostatic 16-station spray gun internal spraying machine can be used to spray the powder coating. Moreover, the powder suction airflow of the spray gun is 0.26Mpa, and the powder spray airflow is 0.2Mpa. At the same time, considering the uniform effect of spraying, the spray gun should be sprayed at least three times. Next, heat the sprayed mobile phone case to solidify the coating powder to form a film. Specifically, a 48-station chain...

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Abstract

The invention provides a spraying treatment method of a mobile phone shell. The method comprises the following steps: step one, cleaning the mobile phone shell; step two, heating a mobile phone glass shell to 150-400 DEG C, reducing specific resistance and conducting; step three, spraying powder coating on the inner wall of the mobile phone shell by using an inner spraying machine of a static spraying gun with more than 16 stations, wherein the adjustable voltage is 50-70KV, the adjustable speed is 6-20 r / min, the powder suction airflow of the spraying gun is 0.23-0.28Mpa and the powder spraying airflow is 0.18-0.2Mpa; and step four, heating the sprayed mobile phone shell, curing the coating powder to be a film, and spraying for at least three times by using the spraying gun, wherein a chain type temperature control curing machine with more than 48 stations is used for curing the coating powder to be the film; the sprayed film is carbonized at 300-350 DEG C, so that the glass shell can be conveniently washed and recycled; no harmful gas is discharged in the recycling process.

Description

technical field [0001] The invention relates to a method for spraying a mobile phone casing, which belongs to the technical field of machinery. Background technique [0002] The casings of general consumer electronic products, such as mobile phones or computers, are usually painted to achieve the decorative purpose of beautifying the casings. When spraying, paint or ink is sprayed on the surface of the mobile phone casing, and a coating film is formed after the solvent evaporates. In the production process of the film-forming technology of the solvent-based liquid-phase coating process, there are volatile irritating odor groups that are harmful to human health. It is harmful to human health and pollutes the environment to a certain extent. Therefore, it is not conducive to promotion and application. Contents of the invention [0003] The invention provides a method for spraying a mobile phone casing, which can overcome the above-mentioned defects. [0004] In order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/06B05D3/02
CPCB05D1/06B05D3/0218B05D3/0254
Inventor 杨经勇林建辉
Owner LIUZHOU YIJIAN TECH
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