Several considerations for research institutes to choose UV curing box

Recently, I received some consultations from some university research institutions on UV curing boxes. I feel it is necessary to share with you. For scientific researchers, several considerations for choosing UV curing boxes.

1. How to accurately control the UV energy?

For the UV curing box: UV energy (mJ / cm2) = UV intensity (mW / cm2) * exposure time (S); therefore, precise control of UV intensity and exposure time can accurately control UV energy.

For the control of exposure time, generally advanced UV curing box, built-in shading electronic shutter, you can set the exposure time.

For the control of UV intensity, the power board is generally used to adjust the duty cycle to control, and currently only 50% -100% can be achieved. Because the bulb needs a certain amount of current to maintain the light-emitting state.

2. What is the UV intensity distribution in the curing chamber?

Generally speaking, the UV intensity in the UV curing box is not as uniform as expected. If the internal reflector and bulb design are not controlled properly, the UV intensity will change greatly.

The UVITRON full-function INTELLI-RAY 400 curing box is equipped with a parabolic reflector, but the intensity will gradually decrease with the direction of the parallel bulb, and the farthest (+/- 4inch) will drop by 40%. The strength range is 60mw / cm2-100mw / cm2. Of course, if your curing area is small, the strength will be more uniform, such as +/- 2inch, the strength is 80mW / cm2-100mw / cm2.

Don't choose so-called "uniform" UV curing boxes that have no data at all.

3. What is the UV spectrum?

At present, due to the development of light curing, many applications have appeared, such as surface curing, visible light curing, etc., and some UVA UVB or visible light enhanced bulbs have appeared. Advanced UV curing boxes can generally be equipped with different spectral bulbs without any hardware changes. Just replace the bulb. This can greatly increase the flexibility of research and development.

4. How to calibrate UV energy

Usually a process condition or test data can not be separated from the quantitative conditions. For UV curing boxes, it is necessary to use a UV energy meter to measure the energy and intensity of UV. A UV energy for UV curing boxes is essential. UV MINDER is a highly economical energy meter for UV curing boxes.

5. Safety and temperature control

Advanced UV curing box with door lock security, open the door, automatically close the exposure shutter to protect the user's safety. Some other designs include good ventilation conditions and automatic standby functions to effectively control the temperature rise. This point requires special attention. Light sources that do not have a well-controlled temperature can cause serious dangers of bulb bursting.

6. Stability and reliability

This is difficult to prove directly, and is generally the accumulation of industrial experience. The general laboratory is usually not equipped with a machine. An unstable light source seriously affects the relevant test schedule.

For UV products, please visit Huishuo Electromechanical website

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