The core of the UV laser marking machine lies in the “cold processing” technology of short wavelength ultraviolet laser, which differs significantly from the principle of traditional thermal processing marking equipment.
1.Core Light Source Generation Through third order intracavity frequency doubling technology, it converts 1064 nm infrared fundamental frequency laser into 355 nm ultraviolet laser. Photon energy of this wavelength is much higher than that of ordinary infrared laser, which can directly break molecular bonds of materials.
2.Non thermal Marking Process High energy ultraviolet photons directly break chemical bonds on the material surface. Local material is instantly stripped via photochemical decomposition with barely any obvious heat generation. The heat affected zone is less than 0.1 mm, avoiding material burning and deformation.
3.High precision Mark Formation Equipped with a high speed galvanometer scanning system, the UV laser marking machine focuses ultraviolet laser into an ultra fine light spot as small as 15 μm. It precisely etches permanent patterns, texts, QR codes and other marks on material surfaces to achieve ultra fine marking performance.