Nowadays,with the rapid development of laser technology,Laser marking machines with air-cooled have been widely used in many applications from auto parts to medical industry etc.These process of marking have significantly increased our production efficiency.Compared to other lasers technology,and among them, infrared lasers and ultraviolet lasers are the two type of lasers most widely used.They have great advantages over other types of laser marking machines due to its excellent performance.While what is the difference between infrared laser and UV laser?Let us make some comparison of the two lasers:

 

What is the difference Infrared laser and UV Laser

 

Infrared YAG laser

 

Infrared YAG laser (wavelength is 1.06μm) is one of the most widely used laser source in material processing.However, many plastics and flexible circuit boards based on a large amount of special polymers (such as polyimide) cannot be high accuracy processed by infrared laser or "heat" treatment due to "heat" deforms the plastic and produces carbonized damage on the edges of cutting or engraving, which may need some subsequent processing steps have to be added to improve processing quality. Therefore, infrared lasers are not suitable for the processing of certain flexible circuits. In addition, the wavelength of infrared lasers cannot be absorbed by copper even at high energy level,So these  factors severely affect its range of application.

 

UV laser

 

However, the wavelength of UV lasers is below 0.4μm, which is suitable for processing polymer materials because of its shorter wavelength.

 

Unlike infrared laser,UV laser processing is not essentially "heat" treatment,which belongs to "cold processing".Moreover,most materials can absorb ultraviolet light more easily than infrared light. High-energy ultraviolet photons directly break the molecular bonds on the surface of many non-metallic materials resulting in more smooth edges and minimal carbonization by these "cold" photoetching technology.

 

The short-wavelength characteristics of UV laser are better to fine processing of metals and polymers.These light spot can be focused on the order of sub-micron level, so it is very suitable for fine work processing even at low pulse energy levels.

 

 

 

Infrared Laser and UV laser in Fine Processing Application

 

Fine laser processing have been widely used in many industries, and there are two main laser:

 

One is infrared lasers: The principle of work is to use laser beam to heat and vaporize (evaporate) the surface of the material to remove the material, usually called "thermal processing". YAG laser (wavelength 1.06μm) is mainly used.

 

Two is ultraviolet lasers: The principle of work is to use high-energy ultraviolet photons to directly break the molecular bonds on the surface of many non-metallic materials, and make the molecules are separated from the object without producing high heat,usually called "cold processing", and ultraviolet lasers (wavelength is 355nm) is mainly used.

 

The comparison between ultraviolet laser and ordinary infrared laser is like below:

 

 

Through the comparison that the ultraviolet laser can perform ultra-fine marking and special material marking because of its very small focus spot and minimal processing heat-affected area.Therefor, UV laser is the first choice for customers who have higher requirements for high accuracy marking.

 

Summary

 

적외선 및 자외선 레이저의 비교 위，우리는 서로 다른 레이저 파장과 처리 방법으로 인해 두 레이저 모두 자체 응용 프로그램이 있음을 알고 있습니다. 자외선 레이저는 정밀 가공이나 3D 인쇄에 더 적합하고 고출력 적외선 레이저는 산업용 절단 및 용접 응용 분야에 더 적합합니다. 가격면에서 동일한 사양에서 자외선 레이저는 적외선 레이저보다 비쌉니다.

오늘, 우리는 당신에게 중국에서 RFH  UV 레이저  상표를 추천할 것입니다.

플라스틱의 페인트 스트리핑 에 사용되는 RFH UV 레이저 마킹 모듈 

S9 시리즈 3W 5W 10W UV 레이저