Why is uvled curing more popular than mercury lamp curing? What's the difference between UV and mercury lamps? In fact, LED curing and mercury lamp curing use the ultraviolet light emitted by the equipment to change the corresponding uv materials from liquid to solid. But because of their different ways of emitting light, they are differentiated.

Luminous mode.

Uvled emits light by combining electrons and holes, and the wavelength of light emitted by led is related to the inorganic semiconductor materials used by LED. The materials that emit UV light are diamond, aluminum nitride, aluminum gallium nitride, etc.

High-pressure mercury lamp is a standard lamp for ultraviolet curing. It is caused by current passing through high-pressure mercury vapor, which is ionized and excited to form a discharge. The electrons, atoms and ions in the tube collide and emit light.

working life.

Under normal use, the service life of uvled can reach more than 20,000 hours, the light decay rate is slow, and it can be turned on and off continuously and instantly without affecting the service life.

The normal service life of mercury lamp is 800~3000 hours, and it takes a period of time, usually 4~10 minutes, from startup to normal operation. Moreover, after the high-pressure mercury lamp is extinguished, it cannot be started immediately, and it needs to be cooled for 5~10 minutes before it can be lit again.

thermal radiation.

Under the normal operation of uvled, the surface temperature rise of the irradiated object is usually below 5 C, and it can be cured normally for heat sensitive materials.

Mercury lamp can emit infrared rays due to its wide spectral range, and the temperature of the irradiated articles will rise by 60 ~ 90 C, so it can be used for uv glue and thermosetting glue in all bands.

environmental protection.

The UV curing equipment uses semiconductor to emit light, and there is no pollution to the environment.

Mercury exists in the mercury lamp, which makes it troublesome in the process of use, waste disposal and transportation. If it is not handled properly, it will pollute the environment.

energy consumption.

The photoelectric conversion efficiency of uvled is high, and it can only be turned on when working, which greatly saves energy consumption. However, the band is single, so uv LED devices with different bands should be used for UV materials with different bands.

No matter whether the mercury lamp is effectively irradiated or not, it needs to be preheated and continuously lighted, and the power is always consumed.

Why uvled curing is more popular than mercury lamp curing is precisely because of their different service life, thermal radiation, environmental protection, energy consumption, etc., and uvled is relatively better than mercury lamp in all aspects, so nowadays uvled curing is used in many places instead of mercury lamp curing.