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Plastic shell spraying process

A technology of plastic shell and process, applied in the direction of coating, device for coating liquid on the surface, surface pretreatment, etc., can solve the problems of fine cracks of plastic parts, poor quality of paint film, loss of gloss of paint film, etc. Foaming, quick cleaning and annealing, effect of improving adhesion

Inactive Publication Date: 2020-06-02
天津合力嘉科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the certain internal stress of plastic parts, plastic parts are prone to fine cracks after painting processing, resulting in problems such as loss of gloss, stripping, blistering, brittleness, and easy breakage of the paint film, making the quality of the obtained paint film poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A plastic shell spraying process disclosed by the invention comprises the following steps:

[0050] S1: Degreasing, soak the plastic case with a degreasing agent at a temperature of 50°C for 1 minute;

[0051] S2: Soaking, soak the degreased plastic case in hot water at 55°C for 2.5 hours;

[0052] S3: washing with water, washing the plastic case obtained in step S2 twice with water, and washing with pure water for the second time, and drying the washed plastic case at 50° C.;

[0053] S4: Activate the interface, soak the dried plastic shell with a plastic surface treatment agent, and then wash it with pure water;

[0054] S5: Blow the surface of the plastic case obtained in step S4 with hot air at 50° C. to remove part of the solution on the surface of the activated plastic case, and then dry the plastic case at 60° C.;

[0055] S6: Electrostatic dust removal, using high-pressure ionized air flow to blow the plastic shell obtained by S6;

[0056] S7: Spray primer an...

Embodiment 2

[0064] A plastic shell spraying process disclosed by the invention comprises the following steps:

[0065] S1: Degrease, soak the plastic case with a degreasing agent at a temperature of 55°C for 2 minutes;

[0066] S2: soaking, soak the degreased plastic shell in hot water at 60°C for 3 hours;

[0067] S3: washing with water, washing the plastic case obtained in step S2 twice with water, and washing with pure water for the second time, and drying the washed plastic case at 55° C.;

[0068] S4: Activate the interface, soak the dried plastic shell with a plastic surface treatment agent, and then wash it with pure water;

[0069] S5: Blow the surface of the plastic case obtained in step S4 with hot air at 55° C. to remove part of the solution on the surface of the activated plastic case, and then dry the plastic case at 62° C.;

[0070] S6: Electrostatic dust removal, using high-pressure ionized air flow to blow the plastic shell obtained by S6;

[0071] S7: Spray primer and ...

Embodiment 3

[0079] A plastic shell spraying process disclosed by the invention comprises the following steps:

[0080] S1: Degrease, soak the plastic case with a degreasing agent at a temperature of 65°C for 3 minutes;

[0081] S2: soaking, soak the degreased plastic case in hot water at 65°C for 3.5 hours;

[0082] S3: washing with water, washing the plastic case obtained in step S2 twice with water, and washing with pure water for the second time, and drying the washed plastic case at 60° C.;

[0083] S4: Activate the interface, soak the dried plastic shell with a plastic surface treatment agent, and then wash it with pure water;

[0084] S5: Blow the surface of the plastic case obtained in step S4 with hot air at 60° C. to remove part of the solution on the surface of the activated plastic case, and then dry the plastic case at 65° C.;

[0085] S6: Electrostatic dust removal, using high-pressure ionized air flow to blow the plastic shell obtained by S6;

[0086] S7: Spray primer and...

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Abstract

The invention relates to a plastic shell spraying process and belongs to the technical field of plastic spraying. The plastic shell spraying process comprises the following steps of S1, degreasing, specifically, soaking a plastic shell in a degreasing agent at the temperature of 50-65 DEG C for 1-3 min; S2, soaking, specifically, soaking the degreased plastic shell in hot water of 55-65 DEG C for2.5-3.5 h; S3, water washing, specifically, cleaning the plastic shell obtained in the step S2 with water and drying the cleaned plastic shell at the temperature of 50-60 DEG C; S4, interface activation, specifically, soaking the dried plastic shell in a plastic surface treating agent and then washing the plastic shell with pure water; S5, drying the plastic shell obtained in the step S4 under 60-65 DEG C; S6, electrostatic dust removal; and S7, priming paint and finish paint spraying. The plastic shell spraying process has the effect that paint film quality is good.

Description

technical field [0001] The invention relates to the technical field of plastic spraying, in particular to a plastic shell spraying process. Background technique [0002] At present, most of the exterior covering parts of electric vehicles in my country use plastic parts. In order to make the plastic parts have a better decorative effect on the body, the plastic parts are usually sprayed with suitable paint, which can not only prolong the service life, but also achieve the appearance. High-gloss, high-decorative effect in body-color or off-color. [0003] Due to the certain internal stress of the plastic parts, the plastic parts are prone to fine cracks after painting, resulting in problems such as loss of gloss, stripping, blistering, brittleness, and easy breakage of the paint film, which makes the quality of the obtained paint film poor. Contents of the invention [0004] The object of the present invention is to provide a plastic shell spraying process, which has the ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/02B05D3/10B05D3/00
CPCB05D3/002B05D3/101B05D7/02B05D7/542B05D2201/02B05D2350/35
Inventor 古德宣
Owner 天津合力嘉科技有限公司
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