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UV lamp using two big mistake
With environmental protection industry is more and more attention for people, the rapid development of market economy, the competition strength increasing, as the core of environmental production UV lamp accessories, also attention, is widely applied, new star, the industry of the future challenges of new environmental protection science and technology. But the application, the more the more problem, the following sankun technology is and we discuss about the UV lamp variation in the use of two big mistake.
A, ultraviolet UV lamp power density and light energy
1, the power density is ultraviolet UV lamp light-emitting long (the distance between the two electrodes) 1 CM need of power, expressed in W/CM, such as light-emitting long distance is 70 CM, power of 5.6 KW, then can calculate 5600 W / 70 CM = 8 ow/CM. Finally it is concluded that the power density of 80 w/CM.
2, light energy, represented by MJ/CM2. Need to use light energy meter to measure. Now basically all UV coating materials are marked to 8 ow/CM lamp several, irradiation distance, etc., but this label is not accurate, is not strict. Because 3 kw, 5 kw, 8 kw UV light can reach 8 ow/CM but different power of UV lamp, although the power density is the same, but the light energy is different, so it should be said that how much the light energy is accurate.
Generally speaking, the curing conditions should be met (800-1200), MJ/CM2.. In addition with the same power of UV lamp is equipped with a reflector, light source distance objects from different printing. (the best distance for 15 to 20 cm) generated by the light energy also differs a lot, and power UV lamp is chosen according to the width of the UV machine and the product needs to decide.
B, UV lamp is usually adopts the forced air cooling, the cooling system of the cooling way decided to the size of the air flow must be moderate.
The myth here is that the lower the temperature, the better, in fact this is wrong. Surface temperature of the UV lamp is not less than 170 ℃, the UV energy is reduced, the phenomenon is represented by the UV light from the blue, ammeter display current increases, time is too long will make for transformer or capacitor current overload and burned.
If the temperature is too high, UV lamp, shortening the life of the UV lamp, show the phenomenon of expansion deformation of the tubes, in the fog, etc., substrates with high temperature and also affected by directly, even make the reflective aluminum melting on the reflector deformation. (reflective aluminum melting point is 500 ℃)
All in all, according to the size of the fan air volume, and body size and the power of the UV lamp UV machine, quantity to decide. Air must be controlled in can keep the tube surface temperature of 200 ℃ advisable, and not directly with strong winds blowing tube surface.
Above for sankun technology UV equipment, UV lamp professional manufacturers, the introduction to UV lamp use two big mistake, if you have a different opinion please a lot of communication, if you have any other technical questions, please contact our customer service, we will wholeheartedly for you to solve problems, and provide a full range of technical solutions.