As the name implies, the high-temperature paint booth needs to rely on a very high temperature for painting. However, this temperature cannot be high at once, but it needs to be gradually increased by heating. This heating method is called convection. heating. What is convection heating? Let's take a look with Xiaobian.
(1) Convection heating in a high-temperature baking paint room refers to the heating method in which the heat energy of the heat source is transmitted to the coating by the heated air.
(2) The air surrounding the coating is a heating medium. Because the coating has a certain thickness, the thermal energy is gradually transferred from the coating surface to the bottom layer of the coating. Therefore, the coating curing starts from the surface of the coating and gradually spreads. To the bottom layer, the coating is dried from top to bottom.
(3) If the temperature rises too fast, the coating on the surface of the coating will be faster, which will hinder the free volatilization of the solvent vapor under the coating, which will prolong the drying time of the coating, and even affect the drying quality of the coating. The quality of the paint to a high-temperature paint booth.
Therefore, the convection heating method can not only increase the temperature moderately, but also has good safety. Therefore, this type of heating is basically used for baking in high-temperature paint booths. However, when painting in the paint room, you must pay more attention to the safety of operation to avoid accidents caused by a wrong operation, causing danger.