1. Physical Cleaning Techniques
Directly remove oil stains through external forces, including manual grinding and sandblasting. Suitable for hard metal surfaces, but caution should be exercised to avoid scratching the workpiece.
2. Chemical Solvent Treatment
Specialized solvents are used to break down oil molecules, quickly removing stubborn oil stains without damaging the substrate. Protective equipment must be worn during this operation, and ventilation must be ensured to reduce the risk of volatile solvents.
3. Ultrasonic Cavitation Cleaning
Using high-frequency sound waves to create a microbubble bursting effect, it can penetrate deep into crevices and remove micron-sized contaminants. This requires use with specialized cleaning agents, requiring a high equipment investment but delivering significant cleaning results.
In actual applications, the degree of oil contamination, workpiece material, and budget should be assessed, prioritizing a method that balances efficiency and environmental friendliness. Quality inspection is required after all cleaning processes to ensure that the custom die-casting surface is free of residue and meets process standards.