Pure-Air factory is well known by many companies in the laser welding industry because of the laser welding fume filter.

The metallurgical physical process of laser deep penetration welding is very similar to electron beam welding, that is, the energy conversion mechanism is organized through the "small hole" structure. Under the focused beam of sufficiently high power density, the material evaporates to form small holes. This steam-filled hole is like a black body, which absorbs almost all the energy of incident light, and the equilibrium temperature in the cavity is as high as about 25,000 degrees. The heat is transferred from the outer wall of the high-temperature cavity to melt the metal surrounding the cavity to achieve the purpose of fusion welding.

The small hole is filled with high-temperature steam generated by the continuous evaporation of the wall material under the irradiation of the light beam. The four walls of the small hole are surrounded by molten metal, and the liquid metal is surrounded by solid materials. The liquid flow outside the pore wall and the surface tension of the wall layer are maintained in a dynamic balance with the continuously generated steam pressure in the cavity. The light beam continuously enters the small hole, and the material outside the small hole is continuously flowing. As the beam moves, the small hole is always in a stable state of flow.

Factors affecting laser deep penetration welding include: laser power, laser beam diameter, material absorption rate, welding speed, shielding gas, lens focal length, focus position, laser beam position, laser power at the start and end points of welding Gradually rise and fall control.

In the laser welding fume filter industry, Pure-Air has more than 10 years of rich experience in cooperation, is also very familiar with the technology of many laser companies, and has long-term supporting environmental protection equipment.

If you want to buy welding smoke purifier,kindly contact ‘Dongguan Pure-Air Tech Co.,Ltd.’.