Take the cleaning process of water-based cleaning agent as an example. Among them, mass fraction, temperature and time are several important operating conditions. According to the cleaning requirements, the orthogonal test method can be used to explore the implementation of the scheme.
The cleaning mass fraction can be roughly determined according to the product manual. The mass fraction of the concentrated type is generally 1% to 5%, and the concentration of the high-pressure cleaning machine can be made into 0.1% to 0.5%.
The cleaning temperature is generally 50 to 85℃, 50 to 60℃ for cleaning thin oil stains, and the temperature is higher for heavy oil stains and high-melting-point lipids.
The cleaning time is related to the cleaning method used, the degree of oil stains and the characteristics of the cleaning agent, and is generally 2 to 10 minutes or longer.
The cleaning methods include immersion, spraying, ultrasonic and multi-step cleaning.
The cleaning process is generally: water cleaning-rinsing-dehydration treatment-rust prevention treatment.
For example, the cleaning process before electroplating for parts with a lot of oil pollution is: degreasing - water washing - acid washing - water washing - alkaline immersion (ultrasonic) - anodic electrolytic cleaning - water washing - activation - water washing - electroplating.
