What are the differences between CO2 laser marking machine and UV laser marking machine

A few days ago, online editor received a customer inquiries about CO2 laser marking machine. After understanding the specific needs, the editor recommended a UV laser marking machine to the customer. Why do some customers think about these two Confused about the functions of the device? I think it is necessary to write an article about the difference between CO2 laser marking machine and UV laser marking machine.

1. Different lasers: CO2 laser marking machine adopts carbon dioxide gas laser, and ultraviolet laser marking machine adopts short-wavelength ultraviolet laser.

2. Different working principles: co2 laser marking machine is a thermal light source. Instant melting or even vaporization, thus forming a mark.' UV laser marking machine is a cold light source, the heat affected area is very small, there will be no thermal effect, the material will not be deformed or burned, the marking effect is permanent, and the marking area can be discolored.

3. Different laser wavelengths: the laser wavelength of CO2 laser marking machine is 10.64μm, and the laser wavelength of ultraviolet laser marking machine is 355nm.

4. Price, in today's laser marking machine competition, the price gap is getting smaller and smaller, but UV laser marking machine is still more expensive than CO2 laser marking machine Some, the specific price can be consulted with us.

5. Different application fields: CO2 laser marking machine is suitable for engraving most non-metallic materials and some metal products, and UV laser marking machine can clearly mark all thermal Plastics and other materials with adverse reactions are especially suitable for applications such as food, pharmaceutical packaging material marking, micro-hole drilling, high-speed division of glass materials, and complex pattern cutting of silicon wafers.

However, this does not mean that the CO2 laser marking machine is useless. At least at present, the price of the same power CO2 laser is much cheaper than that of the UV laser, and the cost has a higher cost. big advantage. In some fields, CO2 lasers can do things that other lasers cannot. For example, to generate extreme ultraviolet light, in the past few decades, the lithography process in semiconductor manufacturing has been realized by deep ultraviolet light with a wavelength of more than 100 nanometers. With the development of Moore's Law, semiconductor chips need to be scribed The number of circuits has grown exponentially, and the requirements for fineness have become more and more stringent, which requires extreme ultraviolet light with a wavelength of about 10 nanometers to complete lithography. In addition, there are still many applications on the market that other types of lasers are not capable of, and only CO2 lasers can be used. In some non-metallic materials and polymer materials processing applications, especially plastics applications, CO2 lasers are still the best choice.

Although UV laser technology continues to spread, the traditional CO2 laser marking machine technology also has its advantages, and it is constantly improving. Therefore, it is difficult for UV laser marking machines to completely replace CO2 laser marking machines, but it is an indisputable fact that UV laser marking machines are becoming more and more popular. From the current point of view, UV laser marking will only be more and more favored by users and the market due to its fine and accurate processing and low processing and maintenance costs.

(This article is edited by the editor, please be sure to indicate the source:)

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