MOPA laser marking machine is a new generation of laser marking machine system developed by using the most advanced laser technology in the world. It uses fiber laser to output laser light, and then realizes marking function through digital high-speed galvanometer system. It is mainly used to replace the traditional backward aluminum blacking manufacturing process. Advanced laser processing system can rapidly improve quality and production efficiency, reduce energy consumption and reduce environmental pollution. The aluminum black MOPA laser marking machine is a widely used laser equipment. Aluminum oxide blacking can also be called aluminum product logo laser, laser lettering machine, laser engraving, aluminum product laser engraving machine, metal laser marking machine.
The aluminum oxide black MOPA laser marking machine has high electro-optical conversion efficiency and is cooled by air cooling. The whole machine is small in size, with good output beam quality and high reliability. Many existing aluminum blackening are processed for anodized aluminum. The principle of aluminum blackening is due to the nano effect. Because the oxide particles are nano sized after laser treatment, the light absorption performance of the material is increased, so that the visible light is absorbed when it is irradiated to the material, and the reflected visible light is very little, so it is black when it is observed by the naked eye. Therefore, it is called aluminum oxide blackening. According to the thin film interference theory, it is impossible. The interference will produce light of different wavelengths according to the thickness of the thin film. However, black is not one wavelength light, but no light. Another is the color of oxide. After searching, the oxide of aluminum is white. Black in stainless steel is caused by iron oxide.
If you want to print black characters on aluminum plates without oxide layer, the only way is to turn on high power, which should be above 30W, and burn the aluminum to print black characters. Alumina with oxide layer can be white and black with radium engraving machine. Aluminum black marking machine can directly make aluminum black
