Industrial aluminum spray cleaning is a commonly used method in the manufacturing process, but it often comes with challenges such as complex equipment, high process requirements, and inconsistent cleaning results. To ensure effective and efficient cleaning of industrial aluminum profiles, several key measures should be taken:
First, it's essential to strictly follow the operating procedures and enhance the overall process control. Daily checks of the equipment’s performance are necessary, and process parameters must be monitored continuously. It's important to avoid leaving workpieces in the system for extended periods, as this can lead to rusting and damage the quality of the final product.
Second, the quality of the washing process should be prioritized. To minimize contamination between different stages, it's recommended to use multi-stage washing systems. Typically, a two-stage washing process is employed, while some advanced processes may even use pure water washing. The water quality in each subsequent stage should not exceed one-tenth of the previous stage, ensuring that the residual solution concentration is reduced to just 1% of its original level. Using countercurrent water supply during refilling helps save resources and improve efficiency.
Third, managing foam is crucial in metal cleaning. While a certain amount of foam can be beneficial in some pre-treatment steps, the effectiveness of the cleaning agent shouldn't be judged solely by the amount of foam produced. In fact, during spraying operations, low-foaming agents are preferred to prevent issues during mass production, ensuring smooth and consistent operation.
Finally, the formulation of the degreasing agent plays a significant role in achieving good cleaning results. Single-component cleaners often lack sufficient power, so compound or multi-component agents are typically used. These agents combine strong alkalis, weak bases, polymeric inorganic salts, and surfactants in an optimal ratio, allowing them to work synergistically and greatly enhancing the cleaning efficiency. This approach ensures thorough removal of contaminants and improves the overall quality of the aluminum profiles.
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