Der Unterschied zwischen grünem Laser und CO2-Laser

grüner Laser

Grüner Laser ist ebenfalls ein kurzwelliger Laser. Im Allgemeinen wird die Frequenzverdopplungstechnologie verwendet, um das vom Festkörperlaser emittierte Infrarotlicht (1064 nm) in grünes Licht mit 532 nm (doppelte Frequenz) umzuwandeln. Grüner Laser ist sichtbares Licht und ultravioletter Laser ist unsichtbares Licht. . Die Photonenenergie des grünen Lasers ist sehr groß und seine Kaltverarbeitungseigenschaften sind denen von ultraviolettem Licht sehr ähnlich, sodass er mit ultraviolettem Laser eine Vielzahl von Typen bilden kann.

The green light marking process, like the ultraviolet laser, is realized by using the photochemical reaction between green light and the material to change the color. Using appropriate parameters can avoid the obvious removal effect on the surface of the material, so it can mark graphics without obvious touch And characters, there is generally a layer of tin masking layer on the surface of the PCB board, usually in many colors, the green laser responds well to it, and the marked graphics are very clear and delicate.

CO2 laser

CO2 is a commonly used gas laser with rich luminous energy levels. The typical laser wavelengths are 9.3 and 10.6um. It is a far-infrared laser with a continuous output power of up to tens of kilowatts. Usually, low-power CO2 lasers are used to achieve high Marking process of non-metallic materials such as molecules. Generally, CO2 lasers are rarely used to mark metals, because metals have a very low absorption rate (high-power CO2 can be used to cut and weld metals, due to factors such as absorption rate, electro-optical conversion rate, optical path and maintenance, fiber lasers have gradually been used. replace).

The CO2 laser marking machine process is realized by using the thermal effect of the laser on the material, or by heating and vaporizing the surface material to expose the deep layer of different colors, or by heating the microscopic physical changes on the surface of the material to make it The reflective performance changes significantly, or certain chemical reactions occur when heated by light energy, and the required graphics, characters, two-dimensional codes and other information are displayed.

CO2 lasers are generally used in electronic components, instruments, clothing, leather, bags, shoes, buttons, glasses, medicine, food, beverages, cosmetics, packaging, electrical equipment and other fields that use polymer materials.