355nm UV 자외선 레이저가 금속 조각에 적합하지 않은 이유는 무엇입니까?

UV 레이저 마킹 기계가 금속 조각에 적합하지 않은 이유는 무엇입니까?

현재 시장에서 널리 사용되는 레이저 마킹기 모델에는 파이버 레이저 마킹기, 자외선 레이저 마킹기 및 CO2 레이저 마킹기가 포함됩니다. 이 세 가지 유형의 모델은 거의 모든 종류의 제품 마킹 및 포장 응용 프로그램을 다룰 수 있습니다. 주류 레이저 마킹 장비.

응용 분야, 핵심 구성 요소 및 처리 원리가 다르기 때문에 모델 가격도 다릅니다. 예를 들어, UV 레이저 마킹기의 가격은 파이버 레이저 마킹기 가격의 거의 3배입니다.

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In terms of wavelength, UV lasers have shorter wavelengths than visible light, so they are invisible to the naked eye. Although you cannot see these laser beams, it is these short wavelengths that allow the UV laser to focus, thereby producing fine circuit characteristics while also Positioning accuracy can be maintained.

There is another important factor. In addition to the low temperature of the workpiece, the photons in the ultraviolet light allow the ultraviolet laser to be applied to large-scale PCB circuit board assemblies.

Ultraviolet laser marking machine has high absorption rate when applied to resin and copper, and also has appropriate absorption rate when processing glass. Excimer laser (wavelength 248nm) will obtain good absorption rate when processing these main materials. The differences make UV lasers the choice for a variety of PCB material applications in many industrial fields, ranging from basic circuit boards, circuit wiring, to pocket-sized embedded chips and other processes.

The computer system of the UV laser marking machine goes directly from the computer-aided design data to the processing of the circuit board, which means that there is no need for a middleman in the circuit board production process, coupled with the precise focusing ability of ultraviolet rays, which is also the use of ultraviolet laser marking in the circuit board industry. One of the reasons for the marking machine is that the UV laser marking machine is not suitable for marking metal products because the beam is small, and the effect of the marking is not as good as that of the fiber laser marking machine.