The LED lamp market has always been in a relatively good state. With the increasing demand, the production capacity needs to be continuously improved. The traditional silk-screen marking method is easy to be erased, fake and inferior products, and tamper with product information, which is not environmentally friendly, and The output is low and it can no longer meet the production demand. Today’s LED laser marking machine is not only clear and beautiful, but also not easy to erase. With the automatic rotating platform, it saves labor.
It only takes a few seconds to engrave the lamp holder with an LED laser marking machine, which can work continuously for 24 hours. It is easy to use and has a dedicated working platform, which can be suitable for engraving many types of LED lights, whether it is flat or 360-degree isolated surface engraving. No radiation, energy saving and environmental protection, no consumables, and the power of the whole machine is less than 1 kWh. It can be adapted to laser engraving of metal and plastic materials, combined with a multi-station rotating platform dedicated to LED lamps, marking fast and saving costs.
Features of laser marking machine for LED lamps
1. It adopts international advanced laser technology and uses fiber laser marking machine as laser, which is small in size and fast.
2. The laser module has a long service life (>100,000 hours), a normal service life of about ten years, low power consumption (<160W), high beam quality, fast speed (>800 standard characters/sec), and maintenance-free.
3. Equipped with the latest technology of high-precision digital scanning galvanometer, with high-quality laser beam. The vibrating lens has good sealing, waterproof and dustproof, small size, compact and solid, and excellent power performance.
4. Special marking software and control card USB interface have fast and stable transmission, with analog and digital transmission functions, simple software operation and powerful functions. It can be adapted to laser engraving of all metal and plastic materials, combined with the multi-station rotating platform dedicated to LED lamps, suitable for rotating engraving of all types of LED lamp bases.
5. Equipped with a dual-axis mobile platform, which can engrave the aluminum base of the flat LED lamp, which is multi-purpose in one machine.
Technology and application of MOPA
In order to flexibly control the final laser output and maintain good beam quality, MOPA pulsed fiber lasers generally use directly pulsed semiconductor lasers LD as the seed source. Low-power LDs can easily directly modulate output parameters such as repetition frequency, For pulse width, pulse waveform, etc., the optical pulse is amplified by a fiber power amplifier to achieve high power output. The fiber power amplifier strictly amplifies the original shape of the seed laser without changing the basic characteristics of the seed laser.
In addition, due to the different mechanisms of Q-switched technology and MOPA technology to achieve pulse output, Q-switched fiber lasers are slow at the rising edge of the pulse and cannot be modulated. The first few pulses are unavailable; MOPA fiber lasers use electrical signal modulation, the pulse is neat, and the first pulse Available, with unique applications in some special occasions.
1.Application of surface stripping of aluminum oxide sheet
As digital products become more portable, thinner, and thinner. When the laser is used to remove the paint layer, it is easy to cause the back surface to deform and produce “convex hull” on the back surface, which affects the aesthetics of the appearance. The use of the smaller pulse width parameters of the MOPA laser makes the laser stay on the material shorter. Under the premise that the paint layer can be removed, the speed is increased, the heat residue is less, and it is not easy to form a “convex hull”, which can make the material It is not easy to deform, and the shading is more delicate and bright. Therefore, MOPA pulsed fiber laser is a better choice for the processing of surface stripping of aluminum oxide sheet.
2.Anodized aluminum blackening application
Using lasers to mark black trademarks, models, texts, etc. on the surface of anodized aluminum materials, instead of traditional inkjet and silk screen technology, it has been widely used on the shells of electronic digital products.
Because the MOPA pulsed fiber laser has a wide pulse width and repetition frequency adjustment range, the use of narrow pulse width and high frequency parameters can mark the surface of the material with a black effect. Different combinations of parameters can also mark different gray levels. effect.
Therefore, it has more selectivity for the process effects of different blackness and hand feeling, and it is the preferred light source for blackening anodized aluminum on the market. Marking is carried out in two modes: dot mode and adjusted dot power. By adjusting the density of dots, different grayscale effects can be simulated, and customized photos and personalized crafts can be marked on the surface of anodized aluminum material.
3.Stainless steel color application
In the stainless steel color application, the laser is required to work with small and medium pulse widths and high frequencies. The color change is mainly affected by frequency and power.
The difference in these colors is mainly affected by the single pulse energy of the laser itself and the overlap rate of its spot on the material. Since the pulse width and frequency of the MOPA laser are independently adjustable, adjusting one of them will not affect the other parameters. They cooperate with each other to achieve a variety of possibilities, which cannot be achieved with a Q-switched laser.
In practical applications, by adjusting the pulse width, frequency, power, speed, filling method, filling spacing and other parameters, permuting and combining different parameters, you can mark more of its color effects, rich and delicate colors. On stainless steel tableware, medical equipment and handicrafts, gorgeous logos or patterns can be marked to play a beautiful decorative effect.
Post time: Jul-03-2021
