In industrial manufacturing, all products can not be separated from packaging marks and information marks. What we are most familiar with are some signs, trademarks, company names, icons, logos and other information. Of course, there are also some labels, bar codes, QR codes, dates, numbers, characters, numbers, English and other information we see on commodities in our daily life.

The existence of this kind of information can only be designed according to the user's wishes with the help of equipment. The range of industries involved is quite broad, but it is precisely because of this that the industry can be inextricably linked with each other and promote the continuous development of society. As one of the types of laser marking equipment, the ultraviolet laser marking machine is also an indispensable marking equipment in the marking industry. It can help users to mark and identify simple or complex information, and is an indispensable part of the marking industry.

Working principle of ultraviolet laser marking machine

The working principle of the ultraviolet laser printer is realized through the photochemical ablation, that is, depending on the high energy of the laser, it generates biological or chemical reactions on the surface of the object, thus forming a mode of marking. The cold light source is mainly used. The wavelength is only 355nm. The focused spot diameter is smaller. The absorption of various materials to ultraviolet light is high, and the thermal influence is small (negligible). Therefore, the marking effect should be more exquisite and fine. The identification information solution in any industry can complete the task delicately, and plays a particularly important role in the identification industry.

Whether the ultraviolet laser marking machine and the optical fiber laser marking machine are universal

The wavelength of the optical fiber laser marking machine is 1064NM. At noon, it belongs to infrared light, which is easy to generate high temperature, and some materials will feel scorched. However, nowadays, optical fiber laser marking machine is the mainstream of the market in metal material marking, and optical fiber laser marking machine will not change the metal surface too much. UV laser marking machine is suitable for processing almost all materials except copper. Ultraviolet is less used in metals, the price of the ultraviolet marking machine is expensive, and the power is relatively low (currently, it is mainly 3W and 5W). If the ultraviolet marking machine can reach 10w-20w, it is not a problem to make any materials.

The structure of the ultraviolet marking machine is the same as that of the optical fiber laser marking machine. The optical components of the optical fiber laser marking machine and the ultraviolet marking machine are not universal. The wavelength of the ultraviolet laser is 355nm, and the wavelength of the fiber laser is 1064nm. The wavelength of the ultraviolet laser is the wavelength after frequency doubling based on the 1064nm wavelength through technology. The technical difficulty is higher. The galvanometer The thickness and material of the lens are different from those of the optical fiber laser marking machine, so it cannot be used universally.