Immersion tanks clean parts by submerging them in a cleaning solution, which can be water-based or solvent-based, depending on the type of contaminants and materials involved. The process typically involves several key steps:
1. **Preparation**: Parts are prepared by removing any loose debris or surface contaminants. This ensures the cleaning solution can effectively reach all areas of the parts.
2. **Submersion**: Parts are placed in a basket or rack and submerged in the immersion tank filled with the cleaning solution. The solution is chosen based on the type of contaminants (e.g., oil, grease, dirt) and the material of the parts (e.g., metal, plastic).
3. **Agitation**: To enhance the cleaning process, the tank may use mechanical agitation, ultrasonic waves, or air bubbles. Mechanical agitation involves moving the parts or the solution to dislodge contaminants. Ultrasonic cleaning uses high-frequency sound waves to create cavitation bubbles that implode and remove dirt from surfaces. Air bubbles can also be introduced to create a scrubbing action.
4. **Soaking**: Parts are left to soak for a predetermined time, allowing the cleaning solution to dissolve or loosen contaminants. The duration depends on the level of contamination and the effectiveness of the cleaning solution.
5. **Rinsing**: After cleaning, parts are typically rinsed with water or another solvent to remove any residual cleaning solution and loosened contaminants.
6. **Drying**: Finally, parts are dried using air blowers, heat, or evaporation to prevent water spots or corrosion.
Immersion tanks are effective for cleaning complex parts with intricate geometries, as the solution can reach areas that are difficult to clean manually. They are widely used in industries such as automotive, aerospace, and manufacturing for their efficiency and thoroughness.