How to reduce dust generation in the vacuum coating industry?

Nowadays, vacuum coating technology is an important branch of vacuum technology, often used in buildings, cars and solar wafers, vacuum coating purpose is to change the physical and chemical properties of the material surface, and the production of the film, often need to work all year round, its life must have certain protection. Therefore, the standard coating system generally has very strong stability, reliability and longer life.

What are the coating applications in real life? Taking glass as an example, glass can radiate energy according to most natural light sources, which is conducive to the collection of light and the digestion and absorption of energy. For space infrared radiation, although ordinary glass can prevent indoor heat from directly passing outdoors, the secondary heat dissipation after the heat is absorbed by the glass will also cause great losses. And solar control film and low emissivity film can make up for the shortcomings of ordinary glass in these aspects.

There is a layer of dust on the surface of vacuum tube coating, which will affect the overall effect of vacuum coating. How to reduce the dust of vacuum coating?

1. The raw materials used must meet the purity requirements of the process.

2. After the sample is taken out, pay attention to environmental hygiene issues to avoid dust.

3. After coating for a period of time, the inner wall of the vacuum chamber must be cleaned.

4. When cleaning the substrate material, the process requirements must be rigorous and up to standard.

5. Staff need to have special work clothes, and wear gloves and foot covers to prevent dust from being brought in.

6. Properly increasing the humidity of the environment is conducive to reducing the suspended solid particles in the surrounding environment.

7. The upper limit of the maximum particle size and the number of particles per unit area that are clearly allowed in technology, and the dust is controlled within this upper limit.

8. The indoor air has low mobility and the floor is clean. If it is a bare concrete floor, it needs to be covered. Walls and roofs cannot be painted with general grey paint.

9. An excellent dust filter is used in the vacuum pump to absorb the dust on the sample.

In the world's vacuum coating industry, China occupies 40% of the share, and it must be partly due to my country's environmental protection work. Vacuum pump companies will install filters. Under the premise of environmental protection, the filter also makes the work smoother. my country's vacuum Only the coating industry can occupy a place in the world. Our filter brother's philosophy when manufacturing vacuum pump filters is the same as the environmental protection advocated by our country, "Aim for green mountains and green waters, blue sky and white clouds