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Process for realizing corrosion prevention and mirror surface during coating of aluminum alloy wheels

An anti-corrosion and aluminum alloy technology, which is applied in the direction of surface coating liquid devices, coatings, special surfaces, etc., can solve the problems of mirror effect and mirror surface roughness, unsatisfactory anti-corrosion effect, etc., to increase the appearance of beauty , easy to attach, simple process effect

Inactive Publication Date: 2019-10-15
DARE WHEEL MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the glossy coating of existing automobile wheels has brightness, the mirror effect and the fineness of the mirror are very rough, and the anti-corrosion effect at the sharp corners of the spokes is not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A process for coating anti-corrosion and mirror surfaces of aluminum alloy wheels, comprising the following steps:

[0031] 1. The thickness of the wheel spray primer film is 70μm;

[0032] 2. The film thickness of the wheel spray primer is 18μm, the primer is leveled, the temperature is 120°C, and the time is 15min;

[0033] 3. Spray the color paint of the color required for the appearance, the film thickness is 20 μm, and leveling, the temperature is 120 ° C, the time is 9 minutes; the color paint is cured, the curing temperature is 120 ° C, the time is 16 minutes;

[0034] 4. Spray protective transparent powder, the film thickness is 50μm, the curing temperature is 170℃, and the duration is 15min;

[0035] 5. Process the surface to be polished according to the fine car mirror process;

[0036] 6. Finely polish the processed surface and places prone to sharp corners;

[0037] 7. Hot water washing→alkaline washing and degreasing→water washing→acid washing→pure water...

Embodiment 2

[0040] A process for coating anti-corrosion and mirror surfaces of aluminum alloy wheels, comprising the following steps:

[0041] 1. The thickness of the wheel spray primer film is 80μm;

[0042] 2. The film thickness of the wheel spray primer is 18μm, the primer is leveled, the temperature is 85°C, and the time is 10min;

[0043] 3. Spray the color paint of the color required for the appearance, the film thickness is 20μm, and leveling, the temperature is 130°C, the time is 18min, the color paint is cured, the curing temperature is 130°C, the time is 18min;

[0044] 4. Spray protective transparent powder, the film thickness is 60μm, the curing temperature is 170℃, and the duration is 20min;

[0045] 5. Process the surface to be polished according to the fine car mirror process;

[0046] 6. Finely polish the processed surface and places prone to sharp corners;

[0047] 7. Hot water washing→alkaline washing and degreasing→water washing→acid washing→pure water washing 2~3 ti...

Embodiment 3

[0050] A process for coating anti-corrosion and mirror surfaces of aluminum alloy wheels, comprising the following steps:

[0051] 1. The thickness of the wheel spray primer film is 100μm;

[0052]2. The film thickness of the wheel spray primer is 20 μm, the primer is leveled, the temperature is 150 ° C, and the time is 9 minutes;

[0053] 3. Spray the color paint of the color required for the appearance, the film thickness is 25 μm, and leveling, the temperature is 150 ° C, the time is 8 minutes, the color paint is cured, the curing temperature is 140 ° C, the time is 15 minutes;

[0054] 4. Spray protective transparent powder, the film thickness is 80μm, the curing temperature is 170℃, and the duration is 15min;

[0055] 5. Process the surface to be polished according to the fine car mirror process;

[0056] 6. Finely polish the processed surface and places prone to sharp corners;

[0057] 7. Hot water washing→alkaline washing and degreasing→water washing→acid washing→pur...

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Abstract

The invention belongs to the technical field of coating, and relates to aluminum alloy wheel coating, in particular to a process for realizing corrosion prevention and mirror surface during coating ofaluminum alloy wheels. The process comprises the following steps of pretreating the wheels, making the wheels enter a coating line, spraying bottom powder on the surfaces of the wheels, spraying priming paint and carrying out leveling, spraying colored paint, and then carrying out leveling and curing; spraying transparent powder, and then carrying out high-temperature curing; finish-turning the surfaces of the wheels, and machining the surfaces to be polished according to a mirror surface process; putting the wheels into a polishing machine for sequential rough polishing and fine polishing; and carrying out cleaning, spraying the transparent powder, and then carrying out curing to obtain products. The method disclosed by the invention is simple in process, does not need adjustment of theprocess of a production line, and does not increase too much cost. The products prepared through the method has the advantages that sharp corners of various parts after the polishing are all polishedoff, so that the sharp corners are smooth and flat, the adhesion of oil paint is easy, the film thickness can be increased, and therefore, the anti-corrosion effect is achieved. The polished surface has a fine mirror surface effect, the image of an object can be clearly seen on the surfaces of the wheels, the surface is like a mirror, and the appearance is more attractive.

Description

technical field [0001] The invention belongs to the technical field of coating, and relates to the coating of aluminum alloy wheels, in particular to a process for coating anti-corrosion and mirror surfaces of aluminum alloy wheels. Background technique [0002] The current polishing process mostly adopts spraying conventional paint first, and then polishing with professional equipment to improve the appearance of the wheel, so that the appearance of the final product can achieve a delicate mirror reflection effect, and the sharp corners are smooth and anti-corrosion, which is refreshing visually. The feeling and performance can meet the anti-corrosion requirements. Although the bright surface coating of the existing automobile wheel has brightness, the mirror effect and the fineness of the mirror are very rough, and the anti-corrosion effect at the sharp corners of the spokes is not ideal. [0003] Many customers require that the bright surface products should have a very ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/14B05D5/06B05D7/00B05D3/02B05D3/12B05D3/10
CPCB05D3/0254B05D3/107B05D3/12B05D5/061B05D7/14B05D7/586B05D2202/25B05D2401/32B05D2451/00B05D2502/00B05D2504/00B05D2420/01B05D2425/04B05D2425/01B05D2420/04
Inventor 许树刚何芳何国元张伟斌
Owner DARE WHEEL MFG
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