In order to better understand the advantages and disadvantages of the equipment, the manufacturer of the laser marking machine will pay a return visit to customers to understand how they use the equipment. When they communicate with customers, they find that many of the same problems will occur when using the equipment. Experienced customers can quickly find a solution to the problem, but some customers struggle for it. In order to help customers better solve these problems, the laser marking machine manufacturer shared and summarized two common problems and solutions.
1. No response to laser scanning
These types of problems can be caused by five reasons: different error causes have different solutions. First of all, turn on the power key without opening it. Secondly, the laser detector is damaged, and only the detector needs to be replaced. Third, the stage cover cannot be disassembled, it will fall off. Fourth, the signal is not limited by time. You can contact the laser label manufacturer and ask them to tell you how to reconnect the signal. Fifth, when your computer software or operating system fails, you need to check your computer for viruses and restart your computer.
Insufficient print depth
The development of laser marking machine manufacturers is mainly driven by poor customer management. There are reasons for incorrect adjustment of printing surface level and field mirror, and parallel adjustment is required. In some cases, the laser power is set too low and needs to be increased to a more appropriate value. In addition, as customers track the marking speed, each device has the processing capacity produced by the laser marking machine manufacturer. If the marking speed set by the machine is too high and exceeds the rated power of the machine, the printing quality will become worse.
With the rapid development of laser technology, laser marking, welding, cutting and other technologies have brought new vitality to all walks of life and are highly praised. For example, nowadays, people's demand for automobiles is increasing, and they are paying more and more attention to the performance and maintenance services of automobiles.
People appreciate the performance, comfort and price of cars, but they are also aware of the safety aspect. Because we all know that in the automotive industry, all auto parts are produced in batches, and quality control can only be carried out selectively. Quality control cannot be completely prevented and controlled in the manufacturing process.
Problems occurred during driving, which can not be traced over time, causing serious hidden dangers to driving safety. Now, we can use laser to mark part information, and through online tracking, we can find and repair non-standard parts in time.
Even if no defective products are found in the production process, we can track the information printed on the parts in time to find out the causes of defects in products and product batches at the first time
Using laser marking machine to trace the data of auto parts can not only change the quality control from autopsy to prevention, but also improve the quality of auto parts. At the same time, it provides additional protection for everyone driving in the car to avoid accidents due to small mistakes.
More importantly, the laser marking equipment has a computer software management system that is easy to assemble and stable, as well as editing graphics, Chinese and English and more auto parts.
At the same time, the laser marking equipment can also be modified non-standard to meet the needs of mass production and the personalized needs of factories and enterprises, making more space for vehicle design and production.
A new femtosecond laser is suitable for this application. These 780nm lasers combine high power, short pulse width and dispersion precompensation to produce high focal plane flux. These parameters result in a more efficient and high-resolution curing process than lasers with wider pulse widths. Intuitive energy management further improves detailed process management. Early applications of these new lasers include the manufacture of lab on chip products and micro structured surfaces, as well as new photonic products, such as micro structured crystals.
Multiphoton excitation microscopy is widely used in scientific research. Like two-photon photopolymerization, when the tightly focused beam size uses the peak power of femtosecond pulses, it only depends on the spatially selective interaction with the sample.
A major trend here is transformation research. Researchers slowly but surely bring multiphoton technology into clinical laboratories and eventually into real-time applications, such as intraoperative biopsy. For obvious reasons, the target technologies are those that do not require fluorescent labeling or transgenic proteins (such as green fluorescent protein) to generate images. These methods include second harmonic generation (SHG) for collagen imaging, with a suitable wavelength of 920 nm; Third harmonic generation (THG) for film imaging, where 1064 nm is appropriate; And endogenous fluorescence excitation, used for imaging various biological molecules and metabolites, 780-800 nm wavelength is applicable.
The numerical large aperture optics focuses the femtosecond laser beam on a narrow waist, and the peak power of the ultrafast pulse is enough to control the absorption of two photons. The additive manufacturing method provides submicron spatial resolution and allows the creation of functions up to 100 nm. Manufactured by Wildman Laboratories/University of Nottingham.
Although femtosecond lasers are essential for SHG and THG microscopes, CW lasers operating at visible or ultraviolet wavelengths can also trigger these natural fluorophores at the expense of a certain depth of field and possible cell damage. Therefore, the advantages of femtosecond excitation are obvious.
The main endogenous fluorophores are the reducing metabolites of nicotinamide adenine dinucleotide (NADH) and flavin adenine dinucleotide (FAD), which can be used as cancer markers. It is well known that cancer cells prefer glycolysis to oxidative phosphorylation to meet their energy needs. When comparing normal cells with cancer cells, this results in a significant difference in the ratio of NADH to FAD. NADH is effectively excited by the absorption of two photons of 700-800 nm wavelength, and the absorption spectrum of FAD extends to 890 nm.
The first study of these metabolites is based on two different ultrafast laser wavelengths, which are not practical for diagnosis or treatment. Fortunately, in recent years, researchers have shown that a single ultrafast laser operating in the 780-800nm range can equally effectively excite and visualize these two species, because the strongest NADH fluorescence also extends the "red" end of the spectrum In addition, the same researchers demonstrated that the resulting NADH/FAD ratio is a reliable marker of two different prostate cancer cell lines.
Similarly, the latest 780 nm compact femtosecond laser is suitable for this potentially very important application. As with two-photon curing, other important laser parameters for unmarked in vivo imaging include excellent beam quality for maximum spatial resolution, short pulses for minimizing the average laser power required for fluorescence, and simplification of the scanning process, such as extinction. Scan with raster.
Ultrafast lasers are becoming more and more important in modern wafer metrology. Several mature technologies, called picosecond laser acoustics (PLA), can measure the thickness of the layer under the opaque layer and the alignment marks related to the image. The latter characteristic is very important in multilayer lithography.
In the PLA process, the absorption of laser pulses (i.e., pumping) generates sound waves propagating inward from the laser surface. The bottom layer and structure reflect part of the sound energy to the surface, and detect it by the reflectivity change of the second laser pulse (i.e. sensor).
PLA uses a new generation of compact femtosecond lasers because they provide better image resolution and better overall measurement.