How to reduce the vacuum coating of dust?

How to reduce the vacuum coating of dust?

Through long-term practice, summed up dust factors affecting the effect of vacuum evaporation coating machine coating and matters needing attention:
1. The coating after a period of time, the inner wall of the vacuum coating machine must be clean;
2. The staff have special clothing, light coating machine operation to wear gloves, socks, etc.;
3. Clean the substrate material, must be strictly accord with technical requirements;
4. Use the purity of source materials to meet the necessary requirements;
5. The sample out after placing environment to pay attention to the problem of clean;
6. The appropriate increase the humidity environment, multi arc ion coating machine can lower the suspended solid particles of the surrounding environment;
7. Technically explicitly allow maximum particle size and the number of particles per unit area of the ceiling is roughly how much;
8. The indoor air flow is low, the ground clean, splash control sputtering coating machine if it is a bare concrete, need to deal with the cover. Walls, roofs, cannot use the general grey coating paint.