In various practical applications, UV laser marking machine perform excellently on plastic materials. Compared with other types of lasers, UV laser marking machine feature high speed and high resolution. When using a UV laser, black markings can be achieved by selectively carbonizing the sublayer beneath the plastic surface.
The UV laser energy emitted by the short-wavelength UV laser triggers photochemical reactions in the material, while avoiding marks caused by excessive heat transfer (thanks to its high speed and high resolution), which would otherwise result in material damage. When processing sensitive materials such as flame-retardant plastics, UV laser marking machine achieve high-resolution marking with excellent surface quality and processing efficiency.
Compared with infrared and green lasers, UV laser marking machine do not require expensive laser-sensitizing additives for material processing, thus accelerating processing speed and improving marking quality.
When other laser machines mark plastic electrical switches, they usually alter the color beneath the material surface. In contrast, UV lasers create black markings by selectively carbonizing the sublayer under the plastic surface. Heat input is confined to a small designated area, so the marked content contrasts sharply with the background material and is highly legible.
UV laser marking machine generally operate at a wavelength of 355 nm, providing a new solution for marking plastic electronic switches. In addition to the features of ordinary marking machines, UV laser marking machine boast a high speed of up to 3000 characters per second.
From the above points, we can see that UV laser marking machine achieve outstanding marking effects, making them a highly recommended choice when selecting a laser marking machine.