Double tube semi gilded infrared heating lamp is used to dry the coating on paper:
The relationship between heating principle and coating drying
The double tube semi gilded halogen infrared heating lampmainly realizes the heating function by emitting Shortwave Halogen Heating Element. Infrared rays are an electromagnetic wave. When it irradiates the coating on the surface of paper, the molecules in the coating absorb the energy of infrared rays. After these molecules absorb energy, their vibration and rotation states will change, thereby increasing the kinetic energy of the molecules and causing the coating temperature to rise.
For the coating on paper, the temperature increase will accelerate the evaporation of the solvent in the coating. Many coatings use organic solvents to adjust their viscosity and other properties during the preparation process. During the drying process, the solvent needs to evaporate from the coating, and infrared heating can speed up this process. For example, the water in water-based paint will change from liquid to gas faster under heating and leave the coating, causing the coating to gradually dry and solidify.
Advantages of double tube design
Uniform heating: The double tube structure can make the tungsten halogen lamp cover a wider range on the surface of paper and reduce the heating dead angle. The infrared rays emitted by the two Quartz IR Halogen Heating Bulb cooperate with each other to make the coating on the paper more evenly heated. This is very important to ensure the consistency of coating drying. If the coating dries unevenly, it may cause quality problems such as inconsistent gloss and hardness on the coating surface. For example, in the process of drying the surface coating of printed paper, double-tube heating can ensure that the coating of the entire printing area can be properly dried, improving the quality of the printed product.
Improve efficiency: The simultaneous operation of the two tubes can increase the total heating power and provide more heat in the same time. This can speed up the drying of the coating, especially for production processes that require a shorter drying time. For example, in some high-speed paper processing production lines, double tube semi gilded Halogen Heater Replacement Bulbs can quickly dry the paper coating and improve the overall efficiency of the production line.
The role of semi-gilding
Enhance infrared emission efficiency: The semi-gilded layer can change the emission characteristics of infrared. The gold-plated layer can reflect part of the infrared, so that the infrared is reflected multiple times inside the lamp tube before being emitted, which can make the emission direction of the infrared more concentrated and enhance the intensity of the IR Halogen Heating Element on the paper coating. Thereby more effectively increasing the temperature of the coating and accelerating the drying process.
Protect the lamp tube and extend the service life: Carbon fiber tubes may be damaged by oxidation during high temperature and long-term use. The semi-gold coating can prevent the carbon fiber tube from contacting with oxygen and other substances in the external environment to a certain extent, and play a protective role. For example, when the infrared emitted heat lamp is frequently used to dry the paper coating, the semi-gold coating can reduce the loss of the carbon fiber tube, extend the service life of the infrared quartz heating lamp, and reduce production costs.
