Vacuum coating product cleaning
Common specific sources of pollution
1.Grease: lubricants, cutting fluids, vacuum grease, etc. that are contaminated during processing, assembly and operation;
2. Acid, alkali and salt substances: residual substances during cleaning, hand sweat, minerals in water, etc.;
3. Surface oxide: surface oxide formed by material placed in the air or moist air for a long time;
4. Water-based: hand sweat during operation, water vapor during air blowing, saliva, etc.;
5. Polishing residue, sodium nitrous oxide, packing glue, dust in ambient air and other organic matters, etc.
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