Wednesday, February 15, 2012

The expert group of green laser pointer

Laser in a controlled manner to remove the surface coating, so the depth profile of the layered structure analysis using LIBS to. Constant in the laser "drill into the material being tested at the same time run out of the spectrometer to its optical radiation spectral measurements, you can get the function of the measured composition of the material elements with depth. Usually, this technique can only be used in the laser parameters typical LIBS system is easier to remove material. Component analysis, such as zinc-plated steel on process control in the detection of heavy metals in paint (lead, uranium, plutonium, etc.), detect the composition of concrete pollution. Nominal voltage of green laser pointer is 3.7V DC.
The laser processing technology is an advanced manufacturing technology, laser cutting, laser processing applications. Part of the field, laser cutting is the world's advanced cutting technology. It has precision manufacturing, flexible cutting, profiled processing, forming, high speed, high efficiency, so to solve many of the conventional methods can not solve the problem of industrial production. Laser cutting of most metallic materials and nonmetallic materials. An overview of laser cutting is the most important one in the laser processing industry applications. It accounted for more than 70% of the entire laser processing industry. Laser cutting and other cutting methods, the biggest difference is that it has the characteristics of high-speed, high precision and high adaptability. The expert group ofgreen laser pointeris researching the new technology ofgreen laser pointer.
Also has a slotted thin, heat-affected zone is small, the quality of the cutting surface, cutting noise, the cutting process is easy to realize the advantages of automation control. Laser cutting sheet metal, no mold, you can replace some of the large and complex mold cutting process, can greatly shorten the production cycle and reduce costs. Therefore, laser cutting has been widely used in automotive, rolling stock manufacturing, aviation, chemical industry, light industry, electrical and electronics, oil and metallurgical and other industrial sectors. Figure 1 Laser Cutting Figure 2 The principle of laser cutting. The principle of laser cutting in the energy under the action of the laser beam (oxygen cutting aid mechanism, plus spray of oxygen and reach the ignition point of the metal to the heat released by exothermic reaction). A protecting key is provided for this kind of green laser pointer.
Surface was quickly (ms range) and heated to several thousand and even tens of thousands of degrees (℃), melting or vaporization, vapors escape and melt blown away objects are auxiliary high-pressure gas (inert gas such as oxygen or nitrogen), kerf generated (schematic shown in Figure 2) [1]. Pulsed laser for metal materials, continuous laser for non-metallic materials, which is an important application field of laser cutting technology. Unlimited shape cutting with computer-controlled automated equipment, the laser beam, cutting the track to modify the convenient multi-part pre-computer design, many complex parts to the whole plate nesting, at the same time cutting, laser cutting CO2 laser cutting (Figure 3). green laser pointer must be used prudently.
Laser cutting is focusing mirror CO2 laser beam focused on the material surface and the material melting, and the laser beam compressed gas to blow away the molten material, and the CO2 laser beam with materials for relative movement along a certain trajectory, thus the formation of a certain shape of the kerf [3]. Figure 3 CO2 laser cutting laser cutting equipment Schematic diagram of laser cutting equipment (see Figure 4) In addition to the machine required some support components, moving parts, and the corresponding motion control devices, mainly also equipped with a laser processing system, it is composed of three parts by the laser focusing system, and electrical systems. Other multiple-chamber vacuum system, outside the beam transmission cooler, and computer programming, hardware and software, and other auxiliary system [4]. It is the product presentation of green laser pointer.

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