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Home » News » Blog » China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts Catalytic method

China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts Catalytic method

Views:0     Author:Site Editor     Publish Time: 2018-12-26      Origin:Site

An improved invention of a sealed-off China factory cheap high quality laser tube 80w for laser cutting engraving machine  co2 laser spare parts, in particular, relates to the invention of dioxide photo catalytic material for use in a sealed-off China factory cheap high quality laser tube 80w for laser cutting engraving machine  co2 laser spare parts.

In the prior art, the sealed-off China factory cheap high quality laser tube 80w for laser cutting engraving machine  co2 laser spare parts is generally composed of a discharge tube, a gas storage jacket, a water-cooled tube, an output mirror, a total reflection mirror, and a coaxial electrode. The discharge tube, the water-cooled tube and the gas storage sleeve are made of glass or quartz material, and the total reflection mirror is generally made of a material such as glass, quartz or silicon, and the polished surface is coated with a film of gold or silver by a vacuum coating method. The coaxial electrode material is generally composed of a metal such as gold, silver (silver-copper alloy), ruthenium, platinum, nickel, titanium or the like, or a ceramic material such as barium co. The output mirror is generally polished by a material such as tantalum, gallium arsenide  or zinc. It is coated. When the laser tube is filled with a certain proportion of working gases such as CO2, N2, He, CO, H2,  X e, and the appropriate high pressure is applied between the electrodes, the working gas is excited to output the CO2 laser. The materials and manufacturing processes used in China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts are well known. For well-known reasons, carbon dioxide is easily decomposed during the operation of the China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts, thereby changing the type and proportion of the working gas in the China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts, coupled with the decomposition of carbon dioxide. The oxygen is relatively easy to react with the metal coaxial electrode and the working gas N2 in the China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts, further aggravating the change of the working gas composition in the China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts; on the other hand, the sputtered material generated by the coaxial electrode in the glow discharge is also It will absorb a large amount of working gas, and the sputter and oxidation products will also pollute the total reflection mirror and the output mirror. For the above reasons, the output power of the China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts will continue to decrease, and eventually the end of the life of the sealed-off China factory cheap high quality China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts  will end. In order to prolong the life of the sealed-off China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts, the following methods 1 are mainly used to prepare a coaxial electrode, such as gold, platinum, silver (silver alloy), and lanthanum, which are catalytically active; A gas such as H2 or CO; 3 forms a catalytic gold film, a platinum film or an Ag2O3 film on the inner wall of the discharge tube. Although the above methods have been used, although the following effects have been achieved, the following problems still exist: 1 the existing metal catalysts have good catalytic properties, mostly noble metals, and the cost is high; 2 the existing ceramic catalytic materials require high-temperature sintering, and the mechanical processing properties Poor; 3 existing solid catalysts mostly have small catalytic area, uneven distribution and low gas conversion efficiency; 4 existing solid catalysts have higher catalytic working temperature, and the catalytic effect is not obvious at lower temperature, and the temperature is easy to make discharge stability. Variation; 5 existing gas catalysts have certain side effects, and the addition effect is limited. Due to the failure to better solve the effective unification of high-efficiency catalysis and catalysis, it is difficult for users to obtain high-quality and low-cost sealed-type laser tubes, which restricts the popularization and use of sealed-off laser tubes in the industrial field.

In order to overcome the decomposition of the China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts during operation, and thus change the type and proportion of the working gas in the laser tube, the oxygen generated by the decomposition of carbon dioxide is relatively easy to react with the metal coaxial electrode and the working gas N2 in the laser tube, exacerbating The change of the working gas composition in the laser tube; and the sputter generated by the coaxial electrode in the glow discharge absorb a large amount of working gas, and the spatter may contaminate the problem of the total reflection mirror and the output mirror. By using a cost-effective dioxide photo catalytic material in a sealed-off China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts, the problem of oxidative regeneration of the decomposition gas in the sealed-off laser tube is solved, thereby prolonging the service life of the sealed-off laser tube and reducing the sealed-off laser. The cost of using the tube.

The technical solution adopted is a photo catalytic sealed-off China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts, which comprises a gold-plated total reflection mirror 1, a return air tube 2, a gas storage sleeve 3, a water-cooling tube 4, a discharge tube 5, an output mirror 6, a photo catalyst 8 and an electrode 7. , 9 composition, characterized in that the discharge tube 5 and the water-cooled tube 4 are placed in the gas storage sleeve 3; the water-cooled tube 4 is placed on the discharge tube 5; the return air tube 2 is spirally wound around the water-cooled tube 4, and is stored by it The gas sleeve 3 is in communication with the discharge tube 5; the extension of one end of the water-cooled tube 4 is sintered on the gas storage sleeve 3; the electrode 7 and the electrode 9 are placed at positions coaxial with the discharge tube 5 at both ends of the discharge tube 5; gold-plated total reflection The mirror 1 and the output mirror 6 are respectively bonded to both ends of the laser tube with epoxy resin, and the inner wall of the discharge tube 5 and the inner walls of the electrodes 7, 9 are coated with the titanium dioxide photo catalyst 8.

The photo catalytic sealed-off China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts, the photo catalyst coated on the inner wall of the discharge tube 5 and the inner walls of the electrodes 7, 9 is type + type titanium dioxide or type titanium dioxide or type titanium dioxide. The main component has a titanium dioxide content of 55%-100%.

          The inner wall of the discharge tube of the China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts and the inner wall of the electrode are covered with a titanium dioxide film. The dioxide film was confirmed to effectively promote the reaction of CO and O to form CO2 under ultraviolet irradiation. It is well known that a gas discharge in a carbon dioxide laser discharge tube generates a large amount of ultraviolet rays which are directly irradiated on the surface of the inner surface of the discharge tube and the surface of the titanium dioxide film coated on the inner wall of the electrode. When the CO2 molecules are decomposed, the formed CO molecules are transported onto the surface of the -titanium dioxide film, forming a large amount of O atoms and a part of O2**, O2+ with energy and activity, with a lifetime of 30-40 milliseconds. O3 plasma has the opportunity to fall directly on the surface of dioxide film. Under ultraviolet irradiation, it is enough to overcome the activation energy between molecules and oxidize CO molecules into CO2 molecules. The titanium dioxide film under ultraviolet irradiation is an excellent photo catalyst. dioxide film is coated on the wall of the discharge activation zone and the inner wall of the electrode in a large amount. On the one hand, the catalytic efficiency of CO molecules and various oxygen particles is improved, which is equivalent. The concentration of CO2 molecules in the China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts is restored to a large extent. On the other hand, since the concentration of O atoms is effectively reduced, the generation probability of harmful decomposition products O, O3, NO and N2O is reduced, and the deactivating substance is reduced. The output of the China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts is expected to be stable and correspondingly improved. The large-area dioxide film reliably solves the problem of CO2 regeneration, and the reduction of the amount of harmful substances generated and the effective suppression of the electrode surface of the titanium dioxide film on the electrode surface, thereby greatly improving the service life of the China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts. , reducing the cost of use. Compared with the prior art, the ultraviolet light generated by the gas discharge in the carbon dioxide laser discharge tube can solve the problem of large-area high-efficiency catalytic regeneration of the working gas in the normal operating environment of the laser tube through the photo catalytic route, and avoids various problems of the prior art. Limitation, carbon oxide has reasonable design, simple structure, easy manufacture, realizes the service life of extended sealed-off two-beam laser tube, reduces the use cost of sealed-off China factory cheap high quality laser tube 80w for laser cutting engraving machine co2 laser spare parts, and popularizes the popularized sealed-off carbon dioxide laser device, which will produce certain Economic and social benefits.


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