The laser light of laser pointer is installed in the theater

The laser light of laser pointer is installed in the theater
DC transport through self-consistent to consider the Coulomb interaction of the current conservation of the gauge invariant transport theory. Green function of second-order perturbation expansion of the arbitrary frequency of the quantum pump theory successfully explained within the quantum dot at zero bias pump current effect, is the best quantitative calculations. SCI papers cited 170. By the Jiangsu Province scientific and technological progress second prize, third prize each time. Invited to speak at several international conferences on the invitation of the report or oral report. Comparison of the micro-plasma cladding and laser cladding. The Company for many years engaged in the practice of application of laser cladding and micro-plasma cladding, with some knowledge of and summary. Today issued a document exchange with the majority of my colleagues. The trainer can smoothly step into the next training stage with help of laser pointer .
Laser cladding is the most important feature of the heat concentrated, quick heating, cooling fast heat-affected zone, especially between the different materials melt characteristics can not be compared with other heat sources, it is also a special heating and cooling process in the casting region the organizational structure is also different from other cladding (spray ? Surfacing ? General welding, etc.) means, and can even produce amorphous organization, especially the pulsed laser is more obvious. This is the so-called laser cladding deformation without annealing. But I think this is just the macro from the workpiece as a whole, the microscopic analysis of the cladding layer and heat affected zone, you will see another scene, which I described at the back. The laser light of laser pointer is installed in the theater.
The laser cladding is the domestic use of two models; CO2 lasers, YAG lasers. The former is a continuous output, cladding machine generally above 3KW; YAG laser pulse output, generally around 600W. Equipment, end users is difficult to understand well, heavily dependent on the production side of the service, expensive purchase price, maintenance costs, high component prices, coupled with the device stability and tolerance with foreign and more common, there are gaps. Laser cladding machine is generally used in specific areas, the area of general industrial manufacturing, maintenance is difficult to cost-effective. Here will introduce the function of electronic pointer of laser pointer .
The first pre-treatment: laser cladding is generally just polished workpiece clean, degreasing, rust, and the fatigue layer is relatively simple. The powder feeding: CO2 laser power, usually argon powder feeding; YAG laser power, usually with natural off the powder.