The difference between metal RF tube co2 laser marking machine and glass tube co2 laser marking machine

CO2 laser marking machine uses a laser beam to permanently mark the surface of various substances. The effect of marking is to expose the deep material through the evaporation of the surface material, so as to engrave exquisite patterns, trademarks, dates, LOGOs or texts. At present, CO2 laser marking machines are mainly used in some occasions that require finer and higher precision. Used in food, medicine, wine, electronic components, integrated circuits (IC), electrical appliances, mobile communications, building materials, PVC pipes and other industries, the main advantage of CO2 laser marking machines and cij printers is that they have no consumables and are permanent.

The light spot pattern of the metal RF tube is close to: TEM00, the light spot of this mode is round and uniform, and the divergence angle is small. The diameter of the outgoing spot is generally small, between 2-4mm, depending on the laser, the outgoing spot is 2mm, 2.5mm, 3mm, 3.5mm, etc. For details, please refer to the parameter manual of the laser. Just because the output spot pattern of the RF tube is good and the spot is small, we all know that the galvanometer of the CO2 marking machine generally uses 12 spots, and we can choose the beam expander of 3, 3.5, 4, 5, and 6 times. It is also known that the larger the multiple of the beam expander, the better the effect of compressing the divergence angle (it is one-half of the divergence angle of the original outgoing light, X is the multiple of the beam expander.), the light coming out in this way is closer to parallel light , so that the spot focused by the field lens is smaller, and the Z can be as small as 0.07mm. Metal pipes have more stable performance, longer life and relatively higher prices. Basically, it can be said to be maintenance-free.

As for the glass tube, it is well known that the spot pattern of the outgoing light is far less than that of the RF tube, and it is absolutely impossible to appear in the TEM00 mode. In addition, its divergence angle is relatively large, and its outgoing light spot is relatively large, generally 4-9mm, because the galvanometer is limited by the 12mm spot (of course, 20mm and 30mm spot galvanometers can also be used, but the price of such galvanometers will be reduced. It is much more expensive, the beam expander will be much more expensive because the outlet of the snake is larger, and the field lens will be much more expensive because the entrance pupil is larger), the beam expander used in this way is generally 2-3 times, which can be compressed The divergence angle of the marking machine is limited, so the light entering the field lens still has a divergence angle, so the focusing spot of such a marking machine is relatively large, generally about 0.25mm or even thicker, and the marking effect is relatively poor. The glass tube CO2 laser marking machine needs to replace the glass tube regularly, and the use cost is low, but it is more troublesome to replace the laser in the later stage, and it cannot be replaced by yourself, and the door-to-door replacement cost is high.

Applicable materials and industry applications: CO2 laser marking machine can engrave a variety of non-metallic materials. Used in clothing accessories, pharmaceutical packaging, architectural ceramics, beverage packaging, fabric cutting, rubber products, shell nameplates, craft gifts, electronic components, leather fabrics, bamboo and wood products, label paper and other industries. Typical application cases, such as laser flight marking of packaging boxes, Leadtech Coding and printing of paper and metal detonator shells, etc.

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