Working Principle of a Plasma Processor

A plasma processor consists of a plasma generator, gas delivery piping, and a plasma nozzle. The plasma generator generates high-voltage, high-frequency energy, which is activated and controlled in a steel nozzle tube to produce a low-temperature plasma. Compressed air propels the plasma toward the workpiece surface. When the plasma interacts with the surface, changes and chemical reactions occur. This cleans the surface, removing hydrocarbon contaminants such as grease and additives. This can result in roughening caused by etching, forming a dense cross-linked layer, and introducing oxygen-containing polar groups (hydroxyl and carboxyl groups). These groups promote adhesion to various coating materials, optimizing bonding and paint applications. Plasma treatment also produces very thin, high-strength coatings, making them ideal for bonding, coating, and printing. No harsh mechanical or chemical treatments are required to enhance adhesion.