In recent years, our country's ultraviolet laser market has shown rapid growth, with its application areas continuing to expand, now widely radiating to multiple industries such as medical care, daily necessities, aerospace, semiconductors, and electronics. Among them, ultraviolet nanosecond pulsed lasers, with their outstanding advantages such as short wavelength, short pulses, excellent beam quality, and high peak power, can effectively reduce thermal effects compared to infrared light sources, demonstrating significant applicability in marking processes such as plastics, paper packaging, medical devices, and consumer electronics.
01
Introduction to the RFL-PUV UV Nanosecond Laser
The RFL-PUV series of UV nanosecond lasers is a proven core tool in the micromachining industry, capable of achieving ideal results in marking, cutting, subtractive material removal, and drilling processes across a wide range of materials. Compared to similar products on the market, this series of lasers offers several significant advantages:
**Higher electro-optical conversion efficiency, significantly reduced energy consumption, and effective operational cost savings;
**Excellent beam quality, with an M² <1.2, achieves a breakthrough in processing efficiency, ensuring greater process accuracy and consistency;
**Narrower pulse width compared to similar lasers significantly reduces thermal effects during processing, enabling stable high-frequency processing and minimizing thermal damage to materials;
**Strong lightweight advantages: A 5W-class laser weighs only 2.87kg, approximately half the weight of competing products, and measures 281×135×93.5mm, surpassing similar products in portability and space adaptability;
**Highly integrated, the laser power supply, laser head, beam expander, and galvanometer connector are integrated into a single unit, enabling immediate use and significantly simplifying operation and maintenance.
02
Multi-material Marking Application Cases Using UV Nanosecond Lasers
2.1 Wire Insulation Marking
In the cable industry, precise marking of cable surfaces is essential to clearly distinguish product information such as brand, type, and specification. Traditionally, inkjet printers have been used for marking, which not only carries high consumables and maintenance costs but also poses significant environmental pollution issues. Furthermore, the ink's poor adhesion to the cable surface makes it susceptible to wear and tear from mechanical transportation, long-term environmental degradation, and human impact, making it difficult to meet the industry's demand for durable marking. Laser marking technology, by contrast, fundamentally addresses these challenges: it produces smooth, even marking lines, clear and easy-to-read information, and eliminates the need for consumables such as ink. This not only reduces pollution and costs during the production process, but also creates a permanent mark through the physical and chemical reaction between the laser and the material surface. This method effectively resists environmental damage, ensuring the mark remains intact and readable over time, significantly improving the marking quality and user experience of cable products. The RFL-P10UV laser is used for laser marking on cables. When matched with a large-format field lens, clear marking of characters can be achieved on the cables. It only takes 0.2 seconds to process characters with a format of 125mm. It can work along the assembly line and cooperate with industrial automation for on-the-fly marking to meet the high-beat requirements of the production line.
In addition to conventional wire marking applications, the technology of using UV lasers to directly print characters on the surface of wires and cables has been widely tested, verified, and recognized by OEM manufacturers and end users in the aerospace industry. For a long time, wire marking technology in this field has always been monopolized by foreign companies. Promoting the localization of wire marking in the aerospace field has become an important direction for the development of the industry. To this end, we used the RFL-P5UV laser to conduct character marking tests on the insulation layer of aerospace-specific wire (compliant with BMS wire specifications). The results showed that at a high-speed movement of 2000mm/s, a single processing can form clearly legible characters - not only are the marks evenly deep and the lines smooth and regular, but the edges are also free of defects such as ablation and blackening. This fully demonstrates the outstanding performance of this laser in the field of high-precision, high-quality marking, and provides strong support for breaking the monopoly of foreign technology and achieving domestic substitution.
2.2 Glass Marking
Due to their unique physical properties and aesthetic appeal, glass products are widely used in a wide range of fields, including architecture, household goods, medicine, chemicals, and home furnishings. Engraving, printing, and laser-engraving patterns and designs on or within glass surfaces have become widely adopted processing technologies within the industry, meeting both functional marking needs and adding personalized design value to products.
The RFL-P5UV laser enables precise and personalized processing of graphics, text, logos, and other features on the glass surface and interior. The resulting markings are pristine white or deep black, achieving not only detailed lines but also a clearer, more beautiful overall image, showcasing both craftsmanship and visual appeal. Compared to ultrafast laser marking technology, this laser offers significant processing efficiency advantages. Furthermore, considering the generally high cost of ultrafast lasers, Raycus' RFL-PUV series lasers offer superior performance and cost control, offering a more cost-effective solution for glass marking, providing companies with a more competitive processing solution.
2.3 Medical Device Marking
Laser marking technology, with its exceptional stability and compliance, fully meets FDA and MDR standards for the medical industry, enabling precise marking of unique device identifiers (UDIs) on a wide range of medical devices and instruments. Importantly, laser-engraved marks on medical devices exhibit excellent sterilization resistance, withstanding repeated exposure to harsh treatments such as high temperatures and chemical disinfection, achieving truly permanent marking and providing reliable support for medical traceability systems. Using the RFL-PUV series laser for medical device marking not only produces clear, high-contrast marks, but also provides long-lasting and stable results. Processing a format like the one shown in Figure 5 takes only approximately 15 seconds, demonstrating exceptional efficiency. For marking test kits, using a 5W UV nanosecond laser, cycle times can be as low as 1.5 seconds per unit, effectively adapting to mass production requirements. This significantly improves processing throughput while ensuring medical compliance.
2.4 Other Non-metallic Markings
In daily life, adding anti-counterfeiting markings to product packaging has become a common practice to ensure that information such as brand, category, and production date is clearly visible, while also enhancing anti-counterfeiting capabilities. The RFL-PUV series lasers can easily and accurately mark a variety of packaging media, including plastic bags, tapes, and bottle caps. The markings are clear and stable, effectively conveying anti-counterfeiting information. They can also adapt to the processing requirements of packaging materials of varying materials, providing an efficient and reliable solution for anti-counterfeiting labeling of product packaging.
The above cases primarily illustrate the marking applications of the RFL-PUV series lasers in various industries. UV laser marking machines offer advantages such as high-precision marking, strong anti-counterfeiting capabilities, high efficiency, and low energy consumption. Fly Laser's UV laser marking series provides applications and solutions for the electronics industry, precision machinery, healthcare, environmentally friendly packaging, the food industry, and micro-processing of various materials. We can also provide customized solutions tailored to specific customer needs.
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