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How does uv cleaning fluid meet the needs of precision component cleaning in electronics?

Publish Time: 2024-11-27
When uv cleaning fluid is used for precision component cleaning in the electronics industry, it can effectively remove grease, organic pollutants and other particles through its unique chemical composition and the synergistic effect of ultraviolet radiation, while ensuring that the cleaning process does not damage sensitive electronic components.

1. Chemical composition

Surfactant: uv cleaning fluid usually contains highly effective surfactants that can reduce the surface tension of the liquid, allowing the liquid to more evenly cover and penetrate into the tiny gaps of the cleaned parts.

Solvent: The solvent in the cleaning fluid can dissolve and remove organic pollutants such as grease, resin, glue, etc. Commonly used solvents include alcohols, ketones and esters, which can quickly dissolve various organic pollutants.

Inhibitor: In order to prevent corrosion of metal parts during the cleaning process, corrosion inhibitors or inhibitors are often added to the cleaning fluid to ensure that the cleaning fluid is harmless to the metal surface.

Stabilizer: The cleaning fluid may contain stabilizers to prevent the active ingredients from decomposing or failing during storage and use.

2. UV irradiation

Photocatalysis: Some components in the uv cleaning fluid may have photocatalytic properties (such as the addition of nano-sized titanium dioxide (TiO2)). Under ultraviolet irradiation, these photocatalysts can produce highly oxidizing hydroxyl radicals (·OH), which can efficiently degrade organic pollutants.

Promote reaction: UV irradiation can activate chemical reactions in the cleaning fluid, accelerate the dissolution rate of pollutants by the solvent, and promote surfactants to better disperse and emulsify pollutants.

Sterilization: UV irradiation also has a sterilization and disinfection effect, ensuring that there are no microbial residues on the surface of the cleaned components, which is particularly important for electronic components with high cleanliness requirements.

3. Cleaning process

Pretreatment: Before UV cleaning, a pre-cleaning step may be required, such as ultrasonic cleaning or mechanical brushing, to remove most of the large particle pollutants and loose attachments.

Soaking cleaning: The components are soaked in the uv cleaning fluid to ensure that the cleaning fluid can penetrate all fine structures and gaps.

UV irradiation: The soaked components are exposed to ultraviolet light to activate the photocatalytic components in the cleaning fluid and enhance the cleaning effect.

Rinsing and drying: After UV cleaning, parts usually need to be rinsed with pure water or a specific rinse solution to remove residual cleaning fluid and reaction products. Finally, take appropriate drying methods (such as hot air drying or vacuum drying) to ensure that the parts are completely dry and free of residue.

4. Features and advantages

High efficiency: UV cleaning fluid combined with UV irradiation can significantly improve cleaning efficiency, usually only a short cleaning time is needed to achieve the cleanliness that traditional cleaning methods take a long time to achieve.

Mildness: Compared with some chemical strong acid or strong alkali cleaning fluids, UV cleaning fluids are usually milder, reducing the risk of damage to sensitive electronic components.

Environmental protection: UV cleaning usually does not require the use of a large amount of solvents, reducing environmental pollution and waste liquid treatment costs.

Consistency: Since the UV cleaning process can accurately control the irradiation time and intensity, it can ensure the consistency of each cleaning effect, which is particularly important for the production of high-precision electronic components.

In summary, UV cleaning fluid can efficiently and gently remove pollutants on precision electronic components through the synergistic effect of its chemical composition and UV irradiation, meeting the electronics industry's needs for high cleanliness and low damage.
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