Surface treatment technology before conducting paint spraying on metal

A treatment process and front surface technology, applied in the direction of metal material coating process, pretreatment surface, surface coating liquid device, etc., can solve the damage of metal material surface tissue, reduce corrosion resistance, impact resistance, and reduce coating cost Membrane effects and other issues, to achieve the effect of enhancing structural complexity, improving binding ability, and improving metal surface activity

Inactive Publication Date: 2017-12-15
当涂县宏宇金属炉料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the surface bonding performance of paint and metal materials, some people use sandblasting to improve the surface properties such as roughness of metal materials, thereby enhancing the bonding ability of paint and metal materials, and achieved good results, but in practice In the application analysis, it is found that sandblasting will inevitably cause residual stress on the surface of metal materials. The bonding strength with the tissue here is not high, especially when the composition of the coating contains inorganic fillers, the inorganic fillers directly contact with the tissue here, which reduces the film-forming effect of the coating at this part, and there will be hidden dangers in the subsequent use. Reduce the overall corrosion resistance, impact resistance and other characteristics
From this point of view, the pretreatment effect of the existing spray paint can still be improved, and the existing problems still need to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A pre-surface treatment process for metal paint, comprising the steps of:

[0029] (1) Surface degreasing treatment:

[0030] Immerse the metal workpiece to be processed in the chemical degreasing solution for soaking and degreasing treatment. During this period, heat and keep the temperature of the chemical degreasing solution at 65°C. After soaking for 3 minutes, take the metal workpiece out for use;

[0031] (2) One-time washing treatment:

[0032] Immerse the metal workpiece treated in step (1) in hot water at a temperature of 45°C for 10 minutes, soak and clean it for 10 minutes, then immerse it in warm water at a temperature of 20°C for 10 minutes, and finally take it out for use;

[0033] (3) Pickling treatment:

[0034] Immerse the metal workpiece treated in step (2) into the pickling solution, heat to keep the temperature of the pickling solution at 35°C, take it out after soaking for 15 minutes; the components and their contents in the pickling solution are:...

Embodiment 2

[0048] A pre-surface treatment process for metal paint, comprising the steps of:

[0049] (1) Surface degreasing treatment:

[0050] Immerse the metal workpiece to be processed in the chemical degreasing solution for soaking and degreasing treatment. During the heating period, the temperature of the chemical degreasing solution is kept at 68°C. After 4 minutes of immersion treatment, the metal workpiece is taken out for use;

[0051] (2) One-time washing treatment:

[0052] Immerse the metal workpiece treated in step (1) in hot water at a temperature of 47°C for 12 minutes, soak and clean it for 12 minutes, then immerse it in warm water at a temperature of 22°C for 14 minutes, and finally take it out for use;

[0053] (3) Pickling treatment:

[0054] Immerse the metal workpiece treated in step (2) into the pickling solution, heat to keep the temperature of the pickling solution at 37°C, take it out after soaking for 18 minutes; the components and their contents in the pickli...

Embodiment 3

[0068] A pre-surface treatment process for metal paint, comprising the steps of:

[0069] (1) Surface degreasing treatment:

[0070] Immerse the metal workpiece to be processed in the chemical degreasing solution for soaking and degreasing treatment. During this period, heat and keep the temperature of the chemical degreasing solution at 70°C. After soaking for 5 minutes, take the metal workpiece out for use;

[0071] (2) One-time washing treatment:

[0072] Immerse the metal workpiece treated in step (1) in hot water at a temperature of 50°C for 15 minutes, soak and clean it for 15 minutes, then immerse it in warm water at a temperature of 25°C for 15 minutes, and finally take it out for use;

[0073] (3) Pickling treatment:

[0074] Immerse the metal workpiece treated in step (2) into the pickling solution, heat to keep the temperature of the pickling solution at 40°C, take it out after soaking for 20 minutes; the components and their contents in the pickling solution are:...

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PUM

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Abstract

The invention discloses a surface treatment technology before conducting paint spraying on metal. The surface treatment technology comprises the following steps that (1) surface oil-removing treatment is conducted; (2) primary washing treatment is conducted; (3) acid pickling treatment is conducted; (4) secondary washing treatment is conducted; (5) primary sand blasting treatment is conducted; (6) surface soaking treatment is conducted; (7) secondary sand blasting treatment is conducted; and (8) cooling treatment is conducted. According to the surface treatment technology before conducting paint spraying on the metal, special surface treatment is conducted on a metal workpiece material before paint spraying, the surface performance of the metal workpiece material is effectively improved, the combining capacity of the metal workpiece material and coating is enhanced, the protecting effect of a paint coating is promoted, and the surface treatment technology has good using and promoting value.

Description

technical field [0001] The invention relates to a metal surface treatment method, in particular to a metal paint front surface treatment process. Background technique [0002] Generally speaking, metal materials refer to pure metals and their alloys, which are one of the basic raw materials that constitute modern civilized society. However, when the commonly used metal materials are used in the natural environment, problems such as aging and corrosion will occur, which will seriously affect their performance characteristics, so surface treatment such as anti-corrosion is required. At present, there are many surface treatment methods for metal materials, such as phosphating treatment, passivation treatment, painting treatment, etc., all of which can form a protective layer on the surface of the metal material, thereby enhancing the performance of the metal material. Among them, the spray paint treatment can not only provide a layer of protective film, but also change the app...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D3/00B05D3/10B05D3/12C23C22/05
CPCB05D3/002B05D3/102B05D3/12C23C22/05
Inventor 芮德发
Owner 当涂县宏宇金属炉料有限责任公司
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