Second, ultraviolet curing lamp supporting equipment
1. UV lamps need matching matching transformers, capacitors, ballasts, triggers and other related power accessories, light direction <1 KW, 2 KW matching ballasts, triggers; more than 2 KW matching transformers, capacitors 〉. High-grade ultraviolet devices use electronic power supply can be steplessly adjusted from 50% to 100% UV intensity, with rewind UV curing.
2. Ultraviolet lamps also need reflectors. In ultraviolet lamps up to the mercury lamp, the reflector acts as a condenser, reflecting the UV light emitted by the UV lamp to the surface of the product to be cured below, concentrating on a line or a point (ie, on the surface of the cured object). Create a focus>.
3. Lamp power density = lamp power ÷ lamp pole pitch.
Different UV coatings have different power density requirements for lamps, such as 80 w/cm, 120 w/cm, and 240 w/cm.
4. UV energy = UV intensity × time.
In a certain range of UV intensity, the accumulation of time reaches the completion of curing.
5. The use and characteristics of lampshade:
The lampshades that are used today for the soft-groove printing and drying are mainly used not only for the purpose of focusing light, but also have the function of the shutter and can be controlled online. When the printer stops, the shutter closes and the lamp power is reduced to a minimum level to prevent the printed material from catching heat. If it is a heat-sensitive material, it must be equipped with a quartz heat insulation sheet (the quartz reflector reflects ultraviolet and transmission infrared, and it can also reflect infrared and transmission enhanced UV). As shown in Figure 6.
(to be continued)
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