Harmful, harmful as follows:
1, infrared erythema?
Sufficient intensity of infrared light irradiation of the skin, infrared erythema can occur, stop irradiation soon after the erythema that disappears. Large doses of infrared light irradiation of the skin for many times, can produce brown marble-like pigmentation, which is related to the thermal effect of strengthening the vascular wall of the basal cell layer of melanocytes in the pigment formation.
2, the role of infrared light on the eye?
Because the eye contains more fluid, the infrared absorption is stronger, and thus a certain intensity of infrared radiation directly to the eye can cause cataracts. The production of cataracts is related to the role of short-wave infrared; infrared wavelengths greater than 1.5 microns do not cause cataracts.
3, infrared radiation patients have a comfortable sense of warmth, the skin can appear light red uniform erythema, such as the appearance of marble-like erythema is overheating performance. The skin temperature should not exceed 45 ℃, otherwise it can cause burns.
4, infrared can be man-made, nature is also widely available in the welding process will also produce, endangering the health of the welder's eyes.
Extended informationPrinciple of operation
Infrared lamp is a tungsten filament into the inflatable quartz tube composition. The tungsten filament is heated under the action of AC voltage and heats the gas in the quartz tube, which generates infrared electromagnetic waves. The infrared rays radiate outward and can be used for heating.
Quartz near-infrared, far-infrared using transparent or semi-transparent quartz glass as the lamp shell can produce near-infrared or far-infrared radiation line spectrum. Infrared is a kind of electromagnetic wave, it propagates at the speed of light, carrying high energy, the same power of different models of infrared radiation intensity and wavelength of different intensity.
A, long-wave infrared (i.e., far-infrared) its characteristics: fast warming, uniform heating, thermal inertia is small, to achieve the constant temperature of the component time only 1-3 minutes, the high efficiency of radiation conversion of electrical energy up to 60% -75%, hot and cold does not blow up, energy-saving long service life.
B, short-wave infrared (i.e., near infrared) its characteristics: with 1-3 seconds to warm up and cool down time, so that the heating process control is more flexible. Single tube, twin tube efficient and durable gold-coated reflective layer, you can achieve more than 96% radiation efficiency, ultra-long service life, generally more than 10,000 hours.
Especially widely used in high-speed printing equipment for drying and curing of plastics, water and other solvents can quickly heat the surface of the object, and has the ability to be quickly absorbed by the water film to achieve the drying effect. Such as Heidelberg, Roland, Komori, Lee Ubi offset presses; McAndy, Jelas, Yagafa, and other flexographic printing presses; hardcover books and magazines linked production line equipment, such as Martini, Kolbus hardcover linkage line and so on.
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