Recently, many friends often come to consult mopa laser marking machine. So today I will briefly explain what mopa laser marking machine is.
According to the wavelength of the laser machine, the laser machine that is divided into mopa is the laser of the fiber, because its wavelength is 1064nm. So why is there a further division in this attribution? Because the effect of proofing and the scope of application are indeed different, the pulse width and pulse frequency of the two machines are indeed different. The difference between mopa laser marking machine and ordinary fiber optic machine is briefly described below:
First, we will explain the proofing effect and scope of application of the machine. The mopa laser marking machine is suitable for the fine marking process of metal and non-metal materials. Such as digital product parts laser engraved black, mobile phone keys, transparent keys, mobile phone shells, key panels, electronic components, oxidation, plastic markings, handicrafts gifts, medical equipment, oxidation treatment and coating plating spraying and other surface treatments. Applicable materials include metals (including rare metals), ABS, PVC, PES, nylon, electroplating materials, coating materials, spraying materials, plastic rubber, epoxy resin and other materials.
Pay attention to the wording of this fine marking. The fiber optic machine we mentioned before is suitable for marking of metal and non-metal hard plastics and does not indicate that it is fine. Alternative instructions, filling powder, and some galvanized metals with ordinary fiber optic machine is difficult to mark the black effect, but the mopa laser marking machine can easily mark the black effect; there are many friends who consulted the mobile phone back cover marking requirements To achieve the effect of the back cover of the Apple mobile phone, the mopa laser marking machine must be used. The effect of the ordinary laser machine is not so fine and sharp, but the mopa laser marking machine does not need to worry about such problems. After marking the silicone surface coating, we should be familiar with Nokia mobile phone cases, using the mopa laser marking machine.
Next, explain the pulse width and pulse frequency of the machine. Here are the parameter concepts of the two machines, pulse width and pulse frequency, let’s briefly explain it first. Pulse width Short pulse width refers to the duration of the amplitude pulse. Therefore, it is a relative unit of time, including milliseconds (ms), microseconds (us), nanoseconds (ns), picoseconds (ps), femtoseconds ( fs) and other magnitudes. The smaller the magnitude, the shorter the duration of laser action. The pulse frequency is equal to the number of times the pulse repeats in one second. The unit is Hertz (hz).
The pulse width of Mopa laser marking machine M1 is 4-200ns, and the pulse width of M6 is 2-200ns. The pulse width of the ordinary laser machine is 118-126ns, you can grind at will. The pulse width of the mopa laser marking machine can be adjusted to a wider range, so it is understood why some products can not produce the effect of ordinary optical fiber, but the mopa laser machine can do To. The pulse frequency of the Mopa laser marking machine is 45Khz, and the ordinary one is 20-80Khz. For ordinary fiber optic machines, the relative pulse frequency adjustment range is more difficult to grasp for the high precision marking requirements.
I believe we should have a certain understanding of the mopa laser marking machine after comparing the marking effect, pulse width and frequency. And it won’t be mysterious because of multiple English letters. In fact, both devices are determined by lasers. Generally, manufacturers that produce lasers have mopa lasers. Maybe the cost of the whole machine is different because of the different cost of the laser.
