With the application of ultraviolet lasers getting closer to life, it has natural charm in processing technology. With short wavelength, narrow pulse width, fast speed, easy absorption of materials, and high peak value, it has become one of the mainstream lasers in the industry. UV laser technology continues to mature, and the processing technology is widely used and popularized. At present, the mainstream marking materials for UV lasers on the market are plastic, glass, ceramic and metal.
Ultraviolet laser and fiber laser thermal processing are just the opposite. People usually call it "cold" processing. A high-energy-density laser is used to locally irradiate the workpiece to vaporize the surface material or undergo a photochemical reaction of color change, thereby achieving a permanent Sex sign. 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.
3C products are emerging with the development of the electronics industry in recent years. In order to meet the higher aesthetic needs of modern people, the processing technology is becoming more and more sophisticated. At the same time, in order to save production costs and a permanent mark, enterprises urgently need to find a new processing method, which has become an urgent need. Ultraviolet laser marking has low temperature and high speed. It can realize precise marking through remote computer control. Due to the unique properties of ultraviolet lasers, plastic marking will not cause deformation of the original due to high energy, and the phenomenon of yellow and black graphics and text.
Those who know circuit boards know that many parts of PCB are composed of precious metal materials, including gold, silver and copper. For small accessories like this, merchants often add their own unique marks on the surface in order to better distinguish them. However, it is difficult to achieve such fine process standards with traditional inkjet or sandblasting marking techniques. The output spot diameter of the ultraviolet laser is only 0.7mm, and the pulse width is 15nm@30KHz, which can realize fine marking parameters.
Glass craftsmanship is often touched in daily life. It can be used for decoration, storage, display, etc. Now we often see beautiful carvings on some cups, without any color matching, still beautiful and picturesque, don’t worry about fading, Pollution sources are generated. At the same time, the speed of UV laser engraving is more refined than manual engraving, the surface is flat and smooth, the efficiency is higher, and the destructiveness in mass production is less. Ultraviolet laser equipment can be used in many fields of flexible board production, including FPC profile cutting, contour cutting, drilling, cover film opening window, soft and hard board uncovering and trimming, mobile phone case cutting, PCB shape cutting And so on in the processing field. The handwriting marked by laser is clear and bright, and can mark black and white handwriting.
At present, the UV laser technology is relatively mature at 3-10W, and is widely used in various industrial "microprocessing" fields, and can be directly used for wafer cutting, ceramic cutting, film etching, laser marking, etc. In the context of the “Made in China 2025” strategy, traditional industrial manufacturing is facing a deep transformation. One of the directions is to increase efficiency while shifting to high-end precision machining with higher added value and higher technical barriers. The development of UV laser technology is fully in line with This trend.
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