Alkaline chemical polishing solution and alkaline chemical polishing method

A chemical polishing and alkaline technology, applied in the field of industrial polishing, can solve problems such as scratches and bumps on aluminum alloy parts, and achieve the effects of improving surface roughness, reducing production costs, and inhibiting pitting corrosion.

Inactive Publication Date: 2013-02-13
GUIZHOU AEROSPACE LINQUAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide an alkaline chemical polishing solution and an alkaline chemical polishing method, which can solve the problem of scratches and bruises on aluminum alloy parts, improve the surface roughness of parts, and reduce production costs

Method used

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  • Alkaline chemical polishing solution and alkaline chemical polishing method
  • Alkaline chemical polishing solution and alkaline chemical polishing method
  • Alkaline chemical polishing solution and alkaline chemical polishing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of alkaline chemical polishing liquid, every 1L of alkaline chemical polishing liquid contains the following components:

[0025]

[0026]

[0027] Described solvent is industrial pure water.

[0028] A kind of alkaline chemical polishing method, mainly used in the polishing treatment of aluminum alloy, it comprises the following steps:

[0029] (1) For the parts to be treated, smooth the flaws and deep scratches on the surface of the aluminum alloy parts with sandpaper, and then perform mechanical sandblasting to remove the traces of sandpaper grinding;

[0030] (2) Heat the temperature of the above-mentioned alkaline chemical polishing solution to 90°C;

[0031] (3) Put the aluminum alloy into the above-mentioned alkaline chemical polishing solution for selective self-dissolution to level and polish the surface of the aluminum alloy. The time of putting it in is 15 seconds, and the polishing treatment of the aluminum alloy is completed.

Embodiment 2

[0033] A kind of alkaline chemical polishing liquid, every 1L of alkaline chemical polishing liquid contains the following components:

[0034]

[0035] Described solvent is industrial pure water.

[0036] A kind of alkaline chemical polishing method, mainly used in the polishing treatment of aluminum alloy, it comprises the following steps:

[0037] (1) For the parts to be treated, smooth the flaws and deep scratches on the surface of the aluminum alloy parts with sandpaper, and then perform mechanical sandblasting to remove the traces of sandpaper grinding;

[0038] (2) Heat the above-mentioned alkaline chemical polishing solution to 95°C;

[0039] (3) Putting the aluminum alloy into the above-mentioned alkaline chemical polishing solution for selective self-dissolution to level and polish the surface of the aluminum alloy. The putting time is 10s, and the polishing treatment of the aluminum alloy is completed.

Embodiment 3

[0041] A kind of alkaline chemical polishing liquid, every 1L of alkaline chemical polishing liquid contains the following components:

[0042]

[0043] Described solvent is industrial pure water.

[0044] A kind of alkaline chemical polishing method, mainly used in the polishing treatment of aluminum alloy, it comprises the following steps:

[0045] (1) For the parts to be treated, smooth the flaws and deep scratches on the surface of the aluminum alloy parts with sandpaper, and then perform mechanical sandblasting to remove the traces of sandpaper grinding;

[0046] (2) Heat the temperature of the above-mentioned alkaline chemical polishing solution to 100°C;

[0047] (3) Putting the aluminum alloy into the above-mentioned alkaline chemical polishing solution for selective self-dissolution to level and polish the surface of the aluminum alloy. The time of putting it in is 5 seconds, that is, the polishing treatment of the aluminum alloy is completed.

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Abstract

The invention discloses an alkaline chemical polishing solution and an alkaline chemical polishing method. Each 1 L of alkaline chemical polishing solution comprises components of 150-280 g of sodium hydroxide, 100-150 g of sodium nitrite, 1-.1.2 g of sodium fluoride, 10-20 g of sodium phosphate, and the balance of a solvent; and meanwhile, the alkaline chemical polishing solution is utilized for alkaline chemical polishing. The alkaline chemical polishing solution and the alkaline chemical polishing method, disclosed by the invention, have the beneficial effects of solving the problems of scratching and impacting of aluminum alloy parts, improving surface roughness of parts, lowering production cost and avoiding environment pollution as a selective self-dissolution function of aluminum and an aluminum alloy is utilized in an alkaline solution to flatten and polish the surface of the aluminum.

Description

technical field [0001] The invention relates to an alkaline chemical polishing liquid and an alkaline chemical polishing method, belonging to the technical field of industrial polishing. Background technique [0002] There are a lot of aluminum alloy products, and the shapes of the parts are complex and diverse, and there are many procedures and turnover in the processing process. Because the aluminum alloy material is soft, it is very easy to scratch and bruise, making the parts unusable. No matter how they are packaged and protected, Scratches and bruises on parts cannot be avoided. The traditional method of mechanical polishing can no longer meet the needs of the product, and the method of electrolytic polishing cannot meet the size requirements of the product, mainly because the uniformity of electrolytic polishing is poor. [0003] Chemical polishing is not limited by the shape and size of parts, and does not require special fixtures. It can process more parts at a time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F3/02
CPCC23F3/02
Inventor 黄洪文卢启才
Owner GUIZHOU AEROSPACE LINQUAN MOTOR CO LTD
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