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The difference between glass tube and RF tube of CO2 laser marking machine

Mar 11 , 2021

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The difference between glass tube and RF tube of CO2 laser marking machine

The laser marking machine uses a laser beam to make permanent marks on the surface of various materials. The effect of marking is to expose deep material through the evaporation of surface material, thereby engraving exquisite patterns, trademarks and text. Laser marking machines are mainly divided into CO2 laser marking machines, semiconductor laser marking machines, and fiber laser marking machines. And YAG laser marking machine, the current laser marking machine is mainly used in some occasions requiring finer and higher precision. Used in electronic components, integrated circuits (IC), electrical appliances, mobile communications, hardware products, tool accessories, precision equipment, glasses and watches, jewelry, auto parts, plastic buttons, building materials, PVC pipes.

 

laser tube

glass tube

The laser tubes commonly used in CO2 laser marking machines are divided into glass tubes and radio frequency tubes. The difference between the two is:

 

RF laser tube

RF laser tube

1. Laser tube: CO2 radio frequency tube laser marking machine adopts imported laser tube; while glass tube adopts domestic laser tube.

 

2. Service life: CO2 radio frequency tube laser marking machine has a lifespan of more than 45,000 hours. It can generally be used for 6 years, and it can be used repeatedly without replacement; while the glass tube marking machine is only about 2500 hours, usually replaced every six months. The glass tube is not reusable and needs to be replaced.

 

3. Cooling method: CO2 radio frequency tube laser marking machine adopts air cooling, which can ensure long-term trouble-free and stable operation; CO2 glass tube laser marking machine adopts water cooling, which may not emit light or emit light intermittently during long working hours or high water temperature , Continuous work has a greater impact on product quality.

 

4. Spot size (beam): CO2 radio frequency tube laser marking machine has a fine spot of 0.07mm, which is more than 3 times finer than glass tube, high precision, small thermal diffusion area, and can engrave/cut very fine works; CO2 glass tube laser The marking machine has a coarse light spot of 0.25mm, poor accuracy, unstable light output (uneven light intensity, sometimes no light), large heat diffusion area, melting and blackening of the cutting edge, and poor engraving accuracy.

 

5. Stability: The RF tube is a fully sealed metal tube and uses a 30 volt low-voltage power supply, which directly avoids some of the disadvantages caused by the use of high-voltage power; because the domestic glass tube laser cutting machine uses 10,000 In addition to being unstable, high-voltage power supplies with a high voltage or even higher are dangerous. Long-term work makes the power supply easy to age, and has great interference to the control system. If the operation is improper, it is easy to burn the main board and be more vulnerable to voltage. Affect and damage its normal function.

 

6. ​​Price: RF tubes are many times more expensive than glass tubes. For processing some products such as leather, only glass tubes can be fully qualified. Therefore, choosing different marking machines according to your own needs is the last word.processing and provided a broader stage for current laser applications.

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