Working principle of traditional UV mercury lamp:
The UV lamp is a gas discharge lamp. The gas discharge lamp is divided into arc discharge and glow discharge. The commonly used UV lamp in UV curing is arc discharge lamp. Its working principle is: adding a certain amount of high purity mercury (mercury) into a vacuum quartz tube , By providing a voltage difference (voltage drop) to the electrodes at both ends, ion discharge is generated, thereby generating ultraviolet radiation.
1. The working principle of UV LED curing lamp:
In the pn junction of semiconductor materials, when the injected minority carriers and majority carriers recombine, the excess energy is released in the form of light, thereby directly converting electrical energy into light energy.
2. The difference between UV LED point light source and traditional UV lamp:
1. Ultra-long life of UV LED: The service life is more than 10 times that of traditional mercury lamp curing machine.
2. UV LED is a cold light source, no thermal radiation, low temperature rise on the surface of the illuminated product, which solves the long-term thermal damage problem in optical communication and liquid crystal production.
3. The low heat of UV LED can solve the problem that the mercury lamp printing equipment heats up and the staff is intolerable.
4. The UV LED lights up instantly, and the UV output of 100% power can be reached immediately without preheating.
5. The service life of UV LED is not affected by the number of opening and closing.
6. UV LED has high energy, stable light output, good uniform irradiation effect, and improved production efficiency.
7. UV LED can customize the effective irradiation area, the length is from 7mm to 1000mm.
8. UV LED does not contain mercury and does not produce ozone. It is a safer and more environmentally friendly alternative to traditional light source technology.
9. UV LED has low consumption, power consumption is only 10% of traditional mercury lamp curing machine, which can save 90% of power. A UV LED point light source is 50W.
10. The maintenance cost of UV LED light source is almost zero, and it is not easy to break.
3. Advantages of UV LED curing light source:
As a new generation of energy-saving and environmentally friendly products, UV LED cold light source curing machine is mainly used to cure paint coatings, and is currently used in many industries. What GMKJ LED wants to tell you today is why so many manufacturers have changed mercury lamps to UV LED curing machines. What is so good about UV LED curing machines? What are the advantages of UV LED cold light sources?
UV LED cold light source can be applied to heat-sensitive materials. Under the exposure of UV LED ultraviolet cold light source, the temperature difference on the surface of the product will not exceed 1°C. Compared with the mercury lamp of high temperature and high pressure, the scope of application has been expanded a lot. The problem of excessive temperature has been solved before, and the product will not be damaged due to the excessive temperature of the product. It avoids the torment of high temperature, makes it easy for people to accept, and does not produce harmful and unpleasant gases such as ozone.
4. The efficiency of UV LED curing machine is also very high. The energy of the UV LED curing machine can be 100% output, and 100% of the energy is used to cure the light-curing resin. With 100% output and 100% usage rate, the curing efficiency is of course the fastest. For the traditional curing waiting time of ten minutes, tens of minutes or even days, UV LED can achieve the curing effect in seconds, and the curing quality is also very excellent. Fast and good is the interpretation given by UV LED.
Of course, there are many advantages of UV LED ultraviolet cold light source, including energy saving, long life, environmental protection and so on. If you have any questions about the UV LED curing machine and want to consult, GMKJ LED provides technical services.
