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Introduction to the process principle of infrared lamp Paint drying

Categories:IR Applications & News
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Time of issue:2023-03-23
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(Summary description)The spectrum used in infrared lamp Paint drying can be divided into near infrared (wavelength 760-1400), mid-infrared (wavelength 1400-3000nm) and far infrared (3000nm-1mm). The absorbed energy of infrared radiation decreases with increasing wavelength. Infrared curing has the advantages of fast heating, fast curing speed, and good curing quality. However, due to the existence of temperature and moisture gradients,

Introduction to the process principle of infrared lamp Paint drying

Categories:IR Applications & News
Author:
Origin:
Time of issue:2023-03-23
Views:0

Information

The spectrum used in infrared lamp Paint drying can be divided into near infrared (wavelength 760-1400), mid-infrared (wavelength 1400-3000nm) and far infrared (3000nm-1mm). The absorbed energy of infrared radiation decreases with increasing wavelength. Infrared curing has the advantages of fast heating, fast curing speed, and good curing quality. However, due to the existence of temperature and moisture gradients, far-infrared drying is not suitable for drying thicker coatings, and the thicker the coating, the more obvious the gradient. In addition, infrared drying can only heat the area where infrared rays can be irradiated, and a considerable part of the heat provided by far infrared rays is absorbed by the air, and it lacks penetrating effect on paint. It is not suitable for drying three-dimensional workpieces with complex shapes, and is generally used for drying the surface of objects.

infrared lamp Paint drying
Mid-wave infrared is the wavelength range commonly used to dry water-based paint coatings, and it penetrates the coating much stronger than far infrared. Most of the light passes through the coating to the paper and dries very well, providing a really efficient and economical way of heating. Near-infrared rays produce the highest energy, are less absorbed and scattered by air, and are suitable for heating thin coatings and paper.
In a word, choosing a suitable infrared emitter can match the product and process according to the wavelength, power and emitter shape of infrared lamp paint drying. In each case, the heating source should be selected according to the characteristics of the process and material. This ensures not only increased production speed, but also improved quality, while reducing scrap and saving costs.