The name of a CO2 laser marker may sound a bit mysterious, but it is actually a super powerful "marking master" that uses laser beams to leave permanent marks on the surfaces of various materials. It's like when you were in school, you used a carving knife to carve your name on your beloved pencil case, but the CO2 laser marker does not use a carving knife, but an invisible but powerful laser beam. Moreover, it can carve more than just names, such as exquisite patterns, trademarks, dates, logos or texts, and the marking effect is more delicate and accurate than that of a carving knife.
In principle, the "Leizhe Laser CO2 Laser Marking Machine" uses CO2 gas as the working medium. CO2 and other auxiliary gases are filled into the discharge tube, and then high voltage is applied to the electrode. At this time, a glow discharge will be generated in the discharge tube, allowing the gas to release a laser with a wavelength of 10.64um. This laser is like a magical light. Then its energy is amplified, and then it is scanned by a galvanometer and focused by an F-Theta mirror. Under the precise control of a computer and a laser marking control card, it can mark the desired images, text, numbers, and lines on the workpiece according to the user's various requirements, just like a well-trained artist, accurately completing each creation.
What non-metallic materials can it process?
In the field of non-metallic material processing, CO2 laser marking machines are simply "universal craftsmen" who are proficient in all kinds of skills.
Common plastics revealed
Common plastics in life, such as acrylic, PVC, nylon, etc., are all its "defeaters" and can be easily controlled. Acrylic materials are the darlings of the advertising industry. Using a CO2 laser marking machine to process text and patterns on them, the effect is so exquisite that people can't take their eyes off. The billboards and signboards made are not only beautiful, but also can be preserved for a long time, and are not afraid of wind and sun. PVC materials are not to be outdone. Whether it is soft or hard, CO2 laser marking machines can carve clear logos on its surface. The yellow-red handwriting is particularly conspicuous on PVC products. Many logos on electrical housings, sewer pipes, industrial accessories, etc. are its masterpieces, adding a unique "identity logo" to the product. Nylon materials can also show their unique charm under the carving of CO2 laser marking machines. Some high-end sports equipment and outdoor products are made of nylon materials, and then marked with exquisite trademarks and parameters, which instantly improves the product grade.
The wonderful transformation of paper and leather
In the paper world, CO2 laser marking machines are an absolute "art master". Whether it is ordinary white paper or thick label paper, it can create freely on it. On label paper, it can choose to punch through or not according to the needs. If you want to mark a circular area and then cut out the circle, it can accurately punch through the circle around the circle, and keep the middle part of the logo intact; if you want to carve on thin paper, it can also be done carefully, turning the paper into a beautiful work of art. In the leather industry, CO2 laser marking machines are even more powerful. Many of the exquisite patterns and texts on leather products such as leather shoes, belts, watch straps, wallets, etc. are due to it. It uses thermal processing. The high-energy laser beam instantly burns and carves on the leather surface. It is not only fast, but also less affected by heat and will not damage the leather. It can also carve various strange patterns to meet the personalized marking needs of merchants, making leather products more unique and attractive.
Artistic sublimation of wood
When wood meets CO2 laser marking machine, it is like Cinderella wearing crystal shoes and transforming gorgeously. For softer wood, it can mark very deeply without leaving black carbonization marks, giving the wood a low-key and exquisite decoration; while for hard wood, such as jujube wood, it will leave beautiful black carbonization marks after marking, like the unique texture given to wood by nature, which is used in wood carvings, ornaments, and crafts, making these objects full of artistic atmosphere. On some wooden furniture, brand logos or exquisite patterns are marked, which not only enhances the quality of furniture, but also increases cultural connotations. Each piece seems to be a unique work of art.
In addition to the above, CO2 laser marking machines can also easily handle materials such as rubber and cloth. Marking on rubber products, such as tires, rubber seals, etc., clear markings can provide product information and quality traceability; on cloth, especially clothing fabrics, it can make various digital patterns, and can also combine hollowing technology to make clothing more fashionable and design-oriented. More than two-thirds of textile and clothing fabrics can use it to show their unique charm. The traditional textile fabric production process requires post-processing grinding, hot stamping, embossing, etc., while its burning is convenient and fast, the pattern change is flexible, the image is clear, the three-dimensional sense is strong, it can fully show the original color and texture of the fabric, and it is always new, becoming the "new favorite" of the clothing industry.
In terms of metal material processing, CO2 laser marking machine is a bit "incapable". This is mainly because metals have weak absorption of CO2 lasers, most of the energy will be reflected, and it is difficult to be absorbed by metals and converted into marks. It's like when you use a flashlight to shine in the mirror, most of the light is reflected back by the mirror, and it is difficult to leave a mark on the mirror. Moreover, the thermal conductivity of metal is very good. Even if the laser generates a little heat on the metal surface, the heat will quickly spread to the surrounding area, which is not enough to form a lasting mark on the metal surface. Just like putting a piece of hot iron into water, the heat is quickly taken away by the water, and it is difficult to leave a high temperature mark on the iron. Therefore, for most metals, the marking effect of CO2 laser marking machine is not ideal. For example, common stainless steel, iron, copper and other metals, the marks are very shallow, or even cannot be clearly displayed when marked by CO2 laser marking machine. However, there are exceptions. Metal materials such as anodized aluminum can be processed by CO2 laser marking machine. In the marking process, the oxide layer is essentially bleached instead of scraped off, so the oxide layer is not damaged. This is because the specific wavelength and energy of CO2 laser can produce a special physical reaction with the oxide layer of anodized aluminum, changing its surface color, thereby achieving marking. It is like putting a "coat" of different colors on the oxide layer, showing a clear mark. On the aluminum casing of some electronic products, you can often see the exquisite logos marked by CO2 laser marking machine. Precautions for selecting CO2 laser marking machine processing materials When deciding to use CO2 laser marking machine to process materials, it is not a matter of slapping your head. There are many key matters that we need to consider carefully. In terms of material properties, the material's ability to absorb lasers is crucial. Materials like acrylic absorb CO2 laser very well, so the marking effect is very good. However, if the surface is smooth and the laser absorption is poor, marking will be more difficult. The thickness and hardness of the material should not be ignored. Thicker or harder materials may require higher laser power and more sophisticated parameter adjustment to achieve the ideal marking effect. In addition, the thermal stability of the material during laser processing is also critical. Some materials with poor thermal stability are easily deformed and burned due to the heat generated by the laser, affecting the marking quality.
Let's look at the marking requirements. Different marking requirements have a great impact on the choice of materials. If the marking accuracy is extremely high, such as the tiny logos on electronic products, you need to choose materials with uniform texture and smooth surface, so as to ensure that the laser marking machine can accurately engrave fine patterns and texts; if you pursue high-speed marking, you must choose materials that can respond quickly to laser energy and are not easy to generate too much heat accumulation, otherwise the marking speed will be fast, but the quality will be reduced. If you want to present rich color changes on the material, you have to understand which materials can produce obvious color changes under the action of laser, such as some plastics will appear black, white or other colors after marking.
There are also equipment parameters, which are also important for the adaptability of the material. The power, frequency, speed and other parameters of the CO2 laser marking machine must be adjusted according to the material. For easy-to-process materials, you can appropriately increase the marking speed, reduce the power, and improve production efficiency; for difficult-to-process materials, you may need to increase the power and reduce the speed to ensure the marking depth and clarity. At the same time, you should also pay attention to the equipment's focal length, spot size and other parameters, which will affect the energy distribution of the laser on the surface of the material, and then affect the marking effect.
In short, when choosing CO2 laser marking machine processing materials, comprehensively consider factors such as material properties, marking requirements and equipment parameters to achieve efficient and high-quality marking, so that the CO2 laser marking machine can give full play to its advantages and create a satisfactory marking effect.
CO2 laser marking machines have made great achievements in the field of material processing with their unique working principle. The range of materials that can be processed is extremely wide, especially in non-metallic materials. Common plastics such as acrylic, PVC, and nylon, paper, leather, wood, as well as rubber, cloth, etc. can all be easily "conquered" by it to create exquisite marks. Although there are limitations in the processing of most metal materials, it also has its own "place" in the processing of special metals such as anodized aluminum.
With the continuous advancement of science and technology, CO2 laser marking machines are expected to be used in more fields in the future. For example, in the field of new energy materials, with the rapid development of industries such as solar panels and lithium batteries, CO2 laser marking machines may play an important role in the processing and marking of these new materials; in the field of biomedicine, for the marking of some biodegradable materials and medical consumables, CO2 laser marking machines may also open up a new market with their high precision and pollution-free characteristics. I believe that in the future, CO2 laser marking machines will continue to break through technical bottlenecks and contribute to the development of more industries. Let us look forward to more surprises from it!
