Coating preparation method of automobile part

A technology for auto parts and coatings, which is applied in coatings, devices for coating liquids on surfaces, and pre-treated surfaces, etc., to achieve the effects of reducing environmental requirements, reducing production costs, and reducing waste

Inactive Publication Date: 2018-03-20
SHANGHAI REAL INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the shortcomings in the above-mentioned prior art, through the process of two coatings and one baking, the base material of the electroplating parts of the high-brightness nickel process is a plastic electroplating part, and quickly and simply obtain high fullness and high vividness. High metal texture products, instead of the industry problem of using high-cost vacuum coating process to achieve this effect in the industry, reduce spraying costs, reduce product rework times, and increase its production pass rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The concrete steps of above-mentioned preparation method are as follows:

[0025] (1) Select the electroplating layer substrate of high brightness nickel as the plastic electroplating part;

[0026] (2) Pretreatment: low-temperature plasma treatment is performed on the surface of plastic electroplating parts, and the plasma generator is used to generate low-temperature plasma, which generates high-voltage and high-frequency energy, which is generated in the glow discharge point that is activated and controlled in the nozzle steel pipe Low-temperature plasma, sprayed to the workpiece with compressed air, sprayed to the workpiece with compressed air, among which the purification efficiency of the plasma generator is 80%, and the processing air volume: 3000m 2 / h, the input voltage is: 220V / 50Hz, after the pretreatment, the super clean cleaning, surface activation, etching and finishing of the object can be realized on the surface of the object;

[0027] (3) Spray primer:...

Embodiment 1

[0036] The technological process of the present invention: select the electroplating layer base material of high brightness nickel as the plastic electroplating part; use the plasma generator to generate low-temperature plasma, and the plasma generator generates high-voltage and high-frequency energy to activate and control the glow discharge in the nozzle steel pipe The low-temperature plasma generated in the point is sprayed to the workpiece with the help of compressed air, and the purification efficiency of the plasma generator is 80%, and the processing air volume is 3000m 2 / h, the input voltage is: 220V / 50Hz, after the pretreatment, it can realize the ultra-clean cleaning, surface activation, etching and finishing of the object on the surface of the object, and carry out different pretreatments according to the product requirements; the pretreated plastic electroplating parts Use a small-caliber spray gun to spray the primer on the surface. The thickness of the primer is ...

Embodiment 2

[0038]Select the high-brightness nickel electroplating layer substrate as the plastic electroplating part; perform low-temperature plasma treatment on the surface of the plastic electroplating part, use the plasma generator to generate low-temperature plasma, and the plasma generator generates high-voltage and high-frequency energy to be activated and controlled in the nozzle steel pipe The low-temperature plasma generated in the glow discharge point is sprayed to the workpiece with the help of compressed air, and the purification efficiency of the plasma generator is 80%, and the processing air volume is 3000m 2 / h, the input voltage is: 220V / 50Hz, after the pretreatment, it can realize the ultra-clean cleaning, surface activation, etching and finishing of the object on the surface of the object; use a small-caliber spray gun to spray the primer on the surface of the pretreated plastic electroplating parts, The spray gun is 25cm away from the plastic electroplating parts, the ...

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PUM

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Abstract

The invention discloses a coating preparation method of an automobile part. The coating preparation method comprises the following steps: selecting a plastic electroplating part manufactured by adopting the highlighting nickel process, and enabling the plastic electroplating part to be subjected to seven process steps: pretreatment, primer spraying, primary levelling, colored paint spraying, secondary leveling, baking, and discharging. The coating preparation method of the automobile part has the benefits as follows: through reasonable selection of materials, pretreatment process and the coating system, a diversified color effect is achieved, the prepared coating has a high plumpness, high grade of transparency and highly metallic appearance, the coating effect and color diversity are enriched, the scratch resistant and ageing resistant performances are realized without additionally arranging a protecting coating, the high-performance requirements of the surface coating of the automobile part are met, the long-term usage of the high-cost process of performing paint spraying after vacuum coating is avoided, and the production cost is further reduced.

Description

technical field [0001] The invention relates to the surface treatment technology of automobile plastic parts, in particular to a coating preparation method of automobile accessories. Background technique [0002] In existing auto parts, plastic parts are painted with extremely poor light transmittance or opaque paint as the appearance color display, and then covered with a layer of pure transparent varnish to protect the paint coating to meet product requirements. This effect is single and lacks Diversity, and the number of reworks is limited, and the metal texture is poor. The patent No. CN106378294A discloses a spraying process for auto parts, which is characterized in that it includes the following steps: removing mold release agent, cleaning and degreasing, grinding, removing static electricity, plastic primer, intermediate coating primer, grinding treatment, topcoat spraying , drying and shaping, polishing treatment, and final inspection. This three-coating and two-bak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D3/14B05D1/02B05D7/02B05D7/00
CPCB05D1/02B05D3/142B05D7/02B05D7/54
Inventor 张波盛桂华李健军
Owner SHANGHAI REAL INDAL
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