The automatic cleaning process is divided into three methods: water cleaning, semi-aqueous cleaning and solvent cleaning. The tools and materials for automatic cleaning mainly include: water washing machine, deionized water system, conductivity tester, beaker, and deionized water.
Automatic cleaning operation steps:
1. Preparation of deionized water: use electrodialysis device and ion exchange resin tank to prepare deionized water.
2. Conductivity test: Use a conductivity tester to test the conductivity of the water after electrodialysis and ion exchange resin tanks. If both meet the index requirements, it can be used for water cleaning.
3. Introduce the water washing machine: introduce the deionized water in the water storage tank to the water washing machine.
4. Set the parameters of the washing machine: the washing room and the rinsing room are set to 60±10℃; the drying room is set to 60℃~90℃.
5. Setting the chain speed: generally control the chain speed at 50~150cm/min.
6. After the PCBA is cleaned, take it out of the washing machine and store it in an anti-static turnover container. The anti-static turnover container is required to be clean and dust-free to avoid secondary pollution of the PCBA after cleaning.
