Wednesday, January 11, 2012

The green laser pointer company has a stronger advantage in the industry

Oxide melt cutting using inert gas fusion cutting generally, if replaced by oxygen or other reactive gases, materials in the laser beam irradiation is lit, heated with oxygen to produce another chemical reaction heat, melt the cut is called oxidation. Described as follows: (1) surface in the laser beam irradiation was quickly heated to ignition temperature, followed by intense with oxygen combustion, emit heat. Role in this heat, the material formed within the holes filled with steam, while the holes around the walls surrounded by molten metal. (2) the transfer of burning material into the slag and metal control the burning rate of oxygen, while oxygen diffusion through the slag to reach the speed of the ignition front also has a great influence the combustion rate. Currently, the green laser pointer company has a stronger advantage in the industry.The higher the oxygen flow rate, combustion chemistry and the faster removal of slag. Of course, the oxygen flow rate is not as high as possible, because the flow rate too fast will lead to the exit slit of metal oxide reaction products that rapid cooling, which is the cutting quality is unfavorable. (3) Obviously, the oxidation melting cutting process there are two sources of heat, and oxygen that laser irradiation can produce a chemical reaction with the metal heat. It is estimated that cutting steel, the oxidation reaction to the release of heat required to account for cutting about 60% of all energy. Knorvay green laser pointer company is making effort to become an excellent enterprise.Obviously, compared with inert gas, the use of oxygen as an aid to get a higher gas cutting speeds. (4) has two sources of heat in the oxidation of molten cutting process, if the oxygen burning faster than the laser beam speed, kerf width and rough look. If the speed of the laser beam moves faster than the combustion of oxygen, the resulting narrow kerf and smooth. For easy heat control damage fracture cutting brittle materials, high-speed heating by the laser beam, controlled cut-off, called the control fracture cutting. This cutting process is the main content: the laser beam to heat a small area of brittle materials, causing a large thermal gradient in the region and severe mechanical deformation, leading to the formation of cracks in materials. As long as a balanced heat gradient, the laser beam can be guided cracks produced in any desired direction. Knorvay green laser pointer company hopes to contribute itself to the development of the society.It should be noted that this control is not suitable for cutting acute fracture and cutting edge kerf angle. Closed form is not easy to cut big success. Control fracture cutting speed, does not require high power, otherwise it will cause surface melting, destruction kerf edge. The main control parameter is the laser power and spot size. 3.2.2 CO2 laser cutting laser cutting is mainly CO2 laser cutting, CO2 laser cutting with CO2 laser beam focusing lens will focus on the material surface and the material melted at the same time with the laser beam with the compressed gas is blown away by the molten material, and to the laser beam along a certain path and materials for the relative motion, to form a certain shape of the kerf. Knorvay green laser pointer company hopes to contribute itself to the economic development.CO2 laser cutting technology, the obvious advantages over other methods are: (1) cutting quality. Narrow cut width (typically 0.1-0.5mm) high precision (usually the hole center distance error of 0.1-0.4mm, profile size error 0.1-0.5mm),, cut joints generally do not need to re-processing to welding. Good cut surface roughness (Ra is usually 12.5-25? M) (2) cutting speed.

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