The laser beam of laser pointer with remote control is electricity-saving

The measured temperature profile method, using thick paper char and penetrate the polypropylene plate measuring the focal spot and perforation diameter. This method by measuring the practice and master the time of the laser power and beam effects. Absorbed by the material value. Material on the absorption of the laser depends on some important properties of the material, such as absorption, reflectivity, thermal conductivity, melting temperature, evaporation temperature, the most important of which is the absorption rate. The impact of material factors on the absorption rate of the laser beam includes two aspects: first, the resistivity of the material, measured after absorption rate of the polished surface of the material, material absorption rate and the resistivity is proportional to the square root of resistivity with temperature varies. Thus RF   green laser pointer with remote control is more popular among customers.
Second, the surface state (or finish) there is a more important influence on the beam absorption rate, the effect of welding plays a significant role. CO2 laser output wavelength is usually 10.6μm, ceramics, glass, rubber, plastic and other non-metal to its absorption rate at room temperature is high, the metal material at room temperature, its absorption is poor, until the material melted and even gas of its absorption dramatically increase. Surface coating or surface of the oxide film is very effective to improve the absorption of the material on the beam. Welding speed. Welding speed on penetration greater impact to improve the speed will make penetration shallow, but the speed is too low will cause the material to excessive melting the workpiece welding wear. The laser beam of   laser pointer with remote control is electricity-saving.
Therefore, a certain laser power and a certain thickness of a particular material has a suitable range of welding speed, and in which the corresponding velocity values for maximum penetration. Figure 10-2 shows a 1018 steel welding speed and penetration. Shielding gas. Laser welding process commonly used inert gas to protect the weld pool, when certain materials welding time to care about the surface oxidation is also time to consider the protection, but for most applications often use helium, argon, nitrogen and other gases for protection, so that the workpiece in from oxidation during the welding process. Difficult to the helium ionization (ionization energy is higher), allows the laser passed the beam energy unhindered direct access to the workpiece surface. This is the most effective use of laser welding shielding gas, but the price is more expensive. The RF emitter of    green laser with remote control is embedded with a wireless RF emitter.
Argon gas is cheaper, higher density, so the protection is better. But it is vulnerable to high temperature metal plasma ionization, shielding some of the results of beam fired at the workpiece, reducing the effective laser power for welding, but also damage the welding speed and penetration. More smooth and using argon gas protection welding surface than helium protection. Nitrogen as protective gas is the cheapest, but on certain types of stainless steel welding does not apply, mainly due to the metallurgical aspects, such as absorption, sometimes in the overlapping zone vents. The second role is the use of shielding gas to protect the focusing lens from the contamination of metal vapor and liquid droplet sputtering. Especially in high power laser welding, because of its ejecta becomes very strong, and protect the lens is even more necessary at this time.  200mw laser pointer with remote control can truly realize a kind of real wireless freedom.
The third role is to protect the gas to disperse the high-power laser welding produced plasma shielding is very effective. The metal vapor absorption such as laser beam is ionized into a plasma cloud around the metal vapor shielding gas ionization heat. If the plasma there is too much, the laser beam plasma consumption to some extent. Plasma as a second energy exists in the work surface, shallow penetration, the weld pool surface wider. To increase by increasing the collision of the electronic and ion and neutral atom three-body recombination rate of electrons to reduce the electron density in the plasma. The lighter neutral atoms, the higher the collision frequency, the higher the recombination rate; the other hand, only the ionization energy of the protective gas, so as not due to the ionization of the gas itself increases the electron density.    green laser pointer   with remote control is similar to the function of the wireless mouse.