What cleaning principle does an in-line plasma cleaner use?

The cleaning principle of the in-line plasma cleaner:

Plasma is a state of matter. Matter normally exists in three states (solid, liquid and gas), but under certain special conditions a fourth state exists, such as the matter in the ionosphere of the Earth's atmosphere. The plasma state contains the following: electrons moving at high speed; neutral atoms, molecules and radicals in an excited state; ionized atoms and molecules; and unreacted molecules and atoms. Overall, however, the matter remains electrically neutral.

In the vacuum chamber, an RF power supply ignites a glow discharge at a given pressure, generating high-energy, disordered plasma. The plasma bombards the surface of the product being cleaned to achieve the cleaning effect.

Applications of in-line plasma cleaners:

In-line plasma cleaners are typically used for:

1. Plasma surface activation/cleaning.

2. Bonding after plasma treatment.

3. Plasma etching/activation.

4. Plasma glue removal.

5. Plasma coating and plating (hydrophilic, hydrophobic).

6. Enhancing bondability.

7. Plasma coating.

8. Plasma ashing, surface modification and similar applications.

This treatment improves the wettability of material surfaces, enables coating, plating and similar operations on many materials, and strengthens adhesion and bonding strength, while removing organic contaminants, oil stains or grease.

In-line plasma cleaners are now widely used in electronics, telecommunications, automotive, textiles, biomedicine and other fields. Examples in electronic products include coating treatment of LCD/OLED screens; pre-bonding treatment of PC plastic frames; surface treatment of structural parts such as housings and keys before spray painting and silk-screen printing; glue and contamination removal from PCB surfaces; treatment of lenses before adhesive bonding; and treatment of wires and cables before inkjet coding. In the automotive industry: treatment of headlamp covers, brake pads and door sealing strips before bonding. In the machinery industry: fine, non-damaging cleaning of metal parts; treatment of lenses before coating; treatment of various industrial materials before joining and sealing; surface modification of three-dimensional objects… and so on.