Cleaning technology for changing metal surface activity

A metal surface and process technology, applied in the field of workpiece surface cleaning, can solve problems such as the inability to change the surface activity of the workpiece, the inability to meet the requirements of material adsorption, and the easy peeling of the workpiece skin.

Inactive Publication Date: 2016-09-28
SHENZHEN XINCHENGNUO ENVIRONMENTAL PROTECTION IND CO LTD
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Problems solved by technology

In addition, the traditional industrial workpiece cleaning process uses a simple cleaning agent to clean the surface of the workpiece. Although it does not cause corrosion and rust on the working surface and is very safe for cleaning materials, this cleaning method is often not conducive to the follow-up of the workpiece. Processing, such as spr

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  • Cleaning technology for changing metal surface activity

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Embodiment Construction

[0015] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

[0016] As shown in the figure, a cleaning process for changing metal surface activity includes three processes, which are hydrocarbon cleaning, vacuum bath cleaning and drying, and vacuum gas phase cleaning. Among them, hydrocarbon cleaning can be set according to the pollution degree of the workpiece surface. In this embodiment, hydrocarbon cleaning includes two hydrocarbon cleaning steps, that is, the process is as shown in the accompanying drawing, and since the imple...

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Abstract

The invention discloses a cleaning process for changing metal surface activity, which includes hydrocarbon cleaning, vacuum bath cleaning and drying, and vacuum gas phase cleaning process. The vacuum gas phase cleaning process is to place workpieces in it and dry The inorganic gas is introduced, and under the action of the radio frequency power supply, the inorganic gas is decomposed into high-speed ions and hits the surface of the workpiece to form a vacuum gas-phase cleaning. The vacuum gas-phase cleaning time is 180-360s, and the intake rate of the inorganic gas is 100-400mL/ minute. In the vacuum gas phase cleaning, the high-speed running ions hit the surface of the workpiece, thereby changing the surface activity of the workpiece surface, forming a rough surface invisible to the naked eye on the surface of the workpiece, which is conducive to subsequent processing, such as spraying, electroplating, anode, vacuum coating, etc., and after processing The epidermis has strong adsorption and is not easy to fall off.

Description

technical field [0001] The invention relates to the field of workpiece surface cleaning, in particular to a cleaning process for changing metal surface activity. Background technique [0002] The traditional industrial workpiece cleaning process is ultrasonic cleaning-ultrasonic pure water rinsing-slow dehydration-drying, and in order to ensure that the cleaning of the workpiece meets the standard, multiple repeated steps are often set in the stages of ultrasonic cleaning and ultrasonic pure water rinsing, so that the workpiece Repeated cleaning many times, and the cleaning agent used is mostly water-based cleaning agent, such as surfactant, inorganic acid and alkali, but because the surface pollutants of different workpieces are different, the control of each process in the cleaning process needs to be very fine. In addition, the traditional industrial workpiece cleaning process uses a simple cleaning agent to clean the surface of the workpiece. Although it does not cause c...

Claims

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Application Information

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IPC IPC(8): C23G5/00
CPCC23G5/00
Inventor 李辉
Owner SHENZHEN XINCHENGNUO ENVIRONMENTAL PROTECTION IND CO LTD
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