Laser engraving process, Rui Feng laser, laser engraving teacher recruitment 2014

Feng Rui laser engraving laser processing applications in the field of analysis, CO2 laser cutting and welding applications with the widest respectively accounted for 70% and 20%, the surface treatment is less than 10%. The application is based on YAG laser welding, marking (50%) and cutting (15%) dominated. CO2 lasers in the United States and Europe accounted for 70% to 80%. China's laser processing mainly to cut 10%, of which more than 98% of the CO2 laser power in the range 1.5kW ~ 2kW, and heat treatment based about 15%, most of the laser processing of automobile engines cylinder liners. The economics of the technology and the social benefits are very high, so there is great market prospects. Plastic products for adaptive laser: Different plastics have different laser energy absorption rate. Some plastic because easy to absorb energy and easy marking; and some plastics are not absorbing the laser, can not generate marked with laser. Absorption of the laser energy is a function of wavelength, and therefore, under the same laser intensity effect, different plastics will be labeled different quality. For example, some colored high-density polyethylene and polycarbonate with YAG laser when, without adding any additives can be an ideal imprint; and the use of carbon dioxide laser marking machine, if adding special additives to seal well. In addition, the degradation of plastics, cracks, holes and other surface, can lead to reduced quality mark. In addition to the use of laser marking additives to improve the printability of plastic, there are dedicated to laser-markable plastics, such as for laser-markable acetal copolymer low-gloss black, with anti-ultraviolet light.