high power uv lasers, fiber laser marking machine, CO2 laser marking machine, market applications

Ultraviolet laser marking machines are more used for efficient, high-quality, pollution-free and low-cost processing. Ordinary plane laser marking will cause the distortion of the marking font, the characters on the left and right sides are stretched and deformed, and they are not in the focus of the laser, and the effect is not clear. Of course, there is a solution, that is, by adding a rotary table, the product can be marked while rotating. , Divide the arc into N small segments for marking, so that the font will not be deformed, but the work efficiency is low, and it is not suitable for mass production.

As the application of ultraviolet lasers is getting closer to life, it has a natural charm in processing technology. With the characteristics of short wavelength, narrow pulse width, fast speed, easy absorption of materials, and high peak value, it has become one of the mainstream industrial lasers. With the continuous maturity of UV laser technology, the processing technology has been widely used and popularized. At present, the mainstream marking materials of UV lasers on the market are plastics, glass, ceramics and metals. Ultraviolet laser and fiber laser thermal processing are just the opposite. People usually call it "cold" processing. The workpiece is partially irradiated by a high-energy-density laser to vaporize the surface material or undergo a photochemical reaction of color change, so as to achieve the ideal standard. engraved effect. Because UV laser marking has no consumables, and the marking effect is fine and beautiful, it has become an irreversible trend to ban the traditional marking process.

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Fiber Laser Marking Machine

Fiber laser marking machine (Optical Fiber Laser Marking Machine) uses a fiber laser to hit the laser beam on the surface of various materials, and the surface material can undergo physical or chemical changes through light, so as to engrave patterns, trademarks and texts, etc. Permanently marked marking equipment. Its components include: fiber laser, laser galvanometer, field mirror, industrial computer, display, cabinet, control switch, power supply, ruler and lifting shaft, etc. MOPA laser marking machine also belongs to the type of fiber laser marking machine.

CO2 Laser Marking Machine

Carbon dioxide laser marking machine (CO2 Laser Marking Machine) uses a gas laser with an infrared light band of 10.64 μm, and charges CO2 gas into a high-voltage discharge tube to generate a glow discharge, so that the gas molecules emit laser light, and the laser energy is amplified to form a pair of laser beams. The laser beam for material processing, the laser beam vaporizes the surface of the processed object to achieve the purpose of engraving.

UV laser marking machine

The UV Laser Marking Machine uses a 355nm UV laser, hits the laser beam on the surface of various substances, and directly breaks the molecular chain of the substance through the short-wavelength laser, thereby engraving patterns, trademarks and characters, etc. Permanently marked marking equipment.

The differences between optical fiber, carbon dioxide and UV laser marking machines are as follows:

1. Different lasers: fiber laser marking machines use fiber lasers, carbon dioxide laser marking machines use CO2 gas lasers, and ultraviolet laser marking machines use short-wavelength ultraviolet lasers.

Ultraviolet laser is a very different technology from carbon dioxide and fiber laser technology, also known as blue laser beam, this technology has the ability to engrave with low heat generation, it does not heat the material like fiber and carbon dioxide laser marking machines The surface belongs to cold light engraving.

2. Different laser wavelengths: the laser wavelength of the optical fiber marking machine is 1064nm, the laser wavelength of the carbon dioxide laser marking machine is 10.64μm, and the laser wavelength of the ultraviolet laser marking machine is 355nm.

Ultraviolet laser marking machine belongs to a product in the series of laser marking machines, and it is also a newly developed laser processing technology. Because the traditional laser marking machine adopts laser and thermal processing technology, it can obtain the highest precision in terms of fineness. The improvement space has limited development. However, the UV laser marking machine adopts a kind of cold processing, so the fineness and thermal influence are minimized, which is a big leap in laser technology.

With the continuous innovation of the laser application industry with the trend of the times, the innovation of various laser equipment has accelerated. Among them, the laser marking machine is an extremely important part of the laser technology. The ultraviolet laser marking machine is one of the laser marking machine series. This product is a mature laser processing technology newly developed.

In the field of modern precision processing, because the traditional laser marking machine adopts laser thermal processing technology, the development of fineness is limited. Under this background, the ultraviolet laser marking machine has become the darling of the new era. It uses a cold working process called "photo-etching" effect. "Cold working" has high load energy (ultraviolet) photons, which can break the chemical bonds in the material or the surrounding medium, so as to make the material non-thermal. Process damage, no heating or thermal deformation in the inner layer and nearby areas, etc., the final processed material has smooth edges and minimal carbonization, so the fineness and thermal influence are minimized, which is a major feature of laser technology. leap. Shenzhen Shangtuo Laser has made great efforts in the field of laser marking machines, and has developed a series of standard and non-standard automatic UV laser marking equipment.

Working principle of UV laser marking machine:

The reaction mechanism of UV laser processing is realized by photochemical ablation, that is, relying on laser energy to break the bonds between atoms or molecules, making them gasify and evaporate into small molecules. The focusing spot is extremely small, and the processing heat affected zone is very small, so it can be used for ultra-fine marking and special material marking.

Application range:

Today, with the rapid development of laser equipment and the increase in the power of UV laser marking machines, UV laser marking machines have been applied to the high-end market for ultra-fine processing, and the surface of packaging bottles for iPhone, cosmetics, medicine, food and other polymer materials. Marking; flexible PCB board marking and scribing; silicon wafer micro-hole and blind-hole processing; LCD liquid crystal glass, glassware surface, metal surface coating, plastic buttons, electronic components, gifts, communication equipment, building materials, etc. an area.

Many common signs in our daily life, such as metal or non-metal marks, text and patterns, BMW logo, mobile phone buttons, etc., these patterns are marked by UV laser marking machine. The principle is that the laser light energy of the UV laser marking machine evaporates the surface layer of the target material to expose the deep layer of the material, thereby "engraving" the desired pattern and text. In short, the laser beam is used to print permanent marks on the surface of various materials. .

Most materials can absorb UV laser, such as consumer electronics, mobile phone parts, LCD screen engraving QR code and trademarks, ceramics, sapphire sheet, capacitive touch screen ITO etching, etc. can be used for UV laser marking machine.

Glass can only be marked with a UV laser marking machine. In general, the application range of UV laser marking machine is relatively wide.