Industrial aluminum spray cleaning is a commonly used method in the manufacturing process. However, due to its complex equipment, high process requirements, and sometimes unsatisfactory cleaning results, it's essential to adopt proper techniques to ensure effective cleaning. Here are some key points to consider:
1. Strengthen the Process and Strictly Follow Operating Procedures. It's crucial to monitor the operation status daily and keep an eye on all process parameters. Workpieces should never be left stagnant inside the equipment, as this can lead to rusting and damage. Proper maintenance and consistent adherence to procedures will help maintain efficiency and product quality.
2. Focus on the Quality of the Cleaning. To reduce pollution, aluminum profiles should be cleaned in a way that minimizes contamination from the previous stage. It’s recommended to implement multi-stage washing—typically two stages, with some processes even using pure water for the final rinse. The water used in the next stage should have a concentration no more than one-tenth of the previous stage, ensuring that residual solution levels drop to just 1% of the original. Using countercurrent water addition can also help save water while maintaining effectiveness.
3. Foam Control and Its Importance. Foam plays a significant role in metal cleaning, especially during pre-treatment. While a certain level of foam can be beneficial, the quality of the cleaning agent isn’t determined by the amount of foam. In fact, when spraying, low-foaming agents are preferred to avoid issues during mass production. Excessive foam can interfere with the cleaning process and reduce overall efficiency.
4. The Formula of the Degreasing Agent. Using a single cleaning agent often leads to poor results. Therefore, in industrial aluminum extrusion production, multi-component, compound cleaning agents are typically used. These agents combine strong alkalis, weak bases, polymeric inorganic salts, and surfactants in a balanced manner. This combination allows each component to work synergistically, significantly enhancing the cleaning performance and overall efficiency of the process.
In summary, successful industrial aluminum spray cleaning requires attention to detail, proper process control, high-quality cleaning agents, and careful management of foam and water usage. By following these practices, manufacturers can achieve better results and maintain the integrity of their products.
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