In order to meet the mechanical operation requirements such as lubrication and heat dissipation in hardware processing, it is essential to use metal processing aids like stamping oil and drawing oil. However, these agents often leave behind a significant amount of residue on the surface of the hardware. As a result, it's crucial to find an effective way to remove this dirt. The types of dirt found on hardware can vary, including oils, greases, fingerprints, metal dust, and even watermarks.
To clean all these contaminants at once, a comprehensive cleaning agent is needed. Water-based cleaners are typically recommended for their effectiveness and environmental friendliness. There are various options available in the market, such as CLF-700. These cleaners are also categorized based on the type of hardware material, including stainless steel, aluminum, copper, galvanized sheet, and multi-functional cleaners.
The volume of hardware being processed plays a key role in determining the cleaning method. For large batches, maintaining consistent cleaning quality is essential. Two common methods are immersion cleaning and ultrasonic cleaning.
Immersion cleaning is straightforward. Using CLF-700 as an example, mix it with hot water (50–60°C) at a 5% concentration. Place the hardware into a mesh basket and submerge it directly into the solution. After 1–2 minutes, lift the basket up and down to enhance the cleaning effect. Soak for another 1–2 minutes, then rinse thoroughly with water several times to ensure all cleaning agent is removed. Finally, dry the hardware using air drying or wiping, depending on its structure.
One important thing to note is that after washing, the water should be changed multiple times to fully remove the cleaning solution, similar to how you would wash clothes. Tap water often contains impurities, which can leave watermarks when dried. If the hardware has a high-quality surface, it's best to use purified water for the final rinse.
Ultrasonic cleaning follows a similar process but uses ultrasonic waves to enhance the cleaning effect. While the ultrasonic waves help improve efficiency, the actual cleaning power still comes from the cleaning agent itself.
Whether you choose immersion or ultrasonic cleaning, selecting the right cleaner and following proper procedures is key to achieving a clean and polished finish.
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