Principle and characteristics of carbon dioxide flying Laser marking machine

CO2 Laser marking machine adopts infrared band 10.64 μ The CO2 gas is charged into the high-voltage discharge tube to produce glow discharge, which makes the gas molecules release the laser. After the laser energy is amplified, the laser beam for material processing is formed, so as to form a clear, permanent and indelible mark on the surface of the processed object.

 

CO2 flight Laser marking machine, also known as CO2 on-line Laser marking machine, is mainly used for on-line laser marking on the surface of various products or outer packaging. Compared with the traditional static Laser marking machine, in the carving process of the flight Laser marking machine, the products can flow continuously on the production line, thus greatly improving the production efficiency, The Laser marking machine can meet the requirements of industrial production line. CO2 Laser marking machine is a kind of Laser marking machine using CO2 gas as working medium. CO2 laser uses CO2 gas as the medium to charge CO2 and other auxiliary gas into the discharge tube. High voltage is applied on the electrode, and glow discharge is generated in the discharge tube, so that the gas releases a laser with wavelength of 10.64um. After amplifying the laser quantity, scanning by galvanometer, reflecting by reflector and focusing by field mirror, under the control of computer and laser marking board card, the image processing can be carried out on the workpiece according to the user's requirements Marking of characters, numbers and lines.

 

Carbon dioxide laser is a kind of molecular laser, the main material is carbon dioxide molecules, it can show a variety of energy states, which depends on the shape of its vibration and rotation. The mixed gases in carbon dioxide (carbon dioxide, helium, nitrogen) are plasma formed by low-pressure gases caused by the release of electrons. As Maxwell Boltzmann distribution law says, in the plasma, molecules present a variety of excited states. Some will be in high energy. Its performance is asymmetric swing state. When it collides with a hollow wall or radiates naturally, the molecule also loses energy accidentally. Through natural emission, this high-energy state will drop to symmetrical swing state and emit photons (a wavelength of 10.6 nm) that may propagate in any direction μ One of these photons propagates along the light path and oscillates in the galvanometer. Then, the laser beam in the resonator is formed by the reflection of the total mirror.

 

Characteristics of CO2 flying Laser marking machine

 

  1. Non contact processing: fine marks can be carved on any regular or irregular surface;
  1. Wide range of applications: can be in the vast majority of non-metallic materials and some metal materials on the marking graphics;
  1. Low operation cost: the marking speed is fast and the marking is formed at one time, and there are few consumables, so the operation cost is low;
  1. Assembly line marking: it can be integrated with other equipment on the production line to improve the automation of the production line;
  1. The mark is clear, permanent, indelible, beautiful, and can be effectively anti-counterfeiting, long service life, no pollution.