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Plastic plating technology on architectural aluminum section welding-surface

A technology for welding surfaces and aluminum profiles, which is applied in the coating process of metal materials, surface pretreatment, and devices for coating liquid on the surface, etc. It can solve the problems of insufficient smoothness, poor visual effect, and easy falling off of plastic powder, etc., to achieve good visual effects

Inactive Publication Date: 2009-07-29
王向阳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a plastic-coating process on the welding surface of architectural aluminum profiles. After the plastic coating is adopted, the plastic powder can firmly adhere to the plastic-coated part, and the surface of the plastic-coated part is smooth, and at the same time, the expected color and visual effect can be produced. Good, to solve the problems in the prior art that the plastic powder is easy to fall off, the smoothness is not enough, and the visual effect is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] Embodiment: The welding surface plastic coating process of building aluminum profiles is characterized in that the steps are: pretreatment, spraying, and baking.

[0015] The pretreatment process is:

[0016] (1) Grinding: Use No. 80 or No. 100 flower-shaped louver grinding disc to grind the welding place, and use fine sandpaper to rub the welding surface for roughening treatment;

[0017] (2) Decontamination of the welding surface: Soak the profile welded parts in solution A for 10-15 minutes, said solution A includes 40 parts of water and 1 part of mixture A, said mixture A includes degreasing agent, surface As an activator, the weight ratio of the degreasing agent to the surfactant is 1:0.2, the degreasing agent is 5% hydrofluoric acid, and the surfactant is 0.8% sulfuric acid;

[0018] (3) Cleaning: Clean the welded parts of the profiles treated in (2) with water;

[0019] (4), Passivation: Soak the profile weldment treated in (3) in solution B for 4 minutes, said...

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PUM

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Abstract

The invention relates to a process for coating plastics on the welding surface of a building aluminum section. The process comprises the following steps of pretreatment, spraying and baking, wherein the working procedures of the pretreatment are: (1) polishing; (2) removing stains on the welding surface; (3) washing; (4) passivating; and (5) rewashing. The process has the outstanding substantive characteristics and obvious progress that after the plastic coating process is adopted, molding powder can be firmly attached to a plastic coating position, the plastic coating position has smooth surface, and simultaneously prospective colors can be generated to achieve good visual effect.

Description

【Technical field】 [0001] The invention relates to a process for plastic-coating treatment on the surface of metal profiles, in particular to a process for plastic-coating welding surfaces of architectural aluminum profiles. 【Background technique】 [0002] At present, plastic coating on the surface of aluminum profiles not only improves the corrosion resistance, but also improves the visual effect. However, the conventional plastic coating process is usually electrostatic spraying directly on the surface of the aluminum profile. Such a plastic coating process has poor adhesion of the plastic powder on the surface of the aluminum profile and is easy to fall off. Moreover, the smoothness of the profile surface after plastic coating is also poor. In addition, there is chromatic aberration after plastic coating, which affects the visual effect. 【Content of invention】 [0003] The object of the present invention is to provide a plastic-coating process on the welding surface of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/24B05D3/12B05D3/10C23G1/02C23C22/06B05D1/04B05D3/02
Inventor 王向阳
Owner 王向阳