Powder Spraying of sheet metal processing is a coating method in which the powder coating is evenly Sprayed on the surface of the workpiece by compressed air or a mechanical spray gun. In order to realize powder spraying of sheet metal, it is necessary to use powder spraying curing furnace to heat and dry the workpiece after spraying. In this paper, the function and technology of powder spraying curing furnace for sheet metal processing are analyzed and discussed in detail.
The powder spraying curing furnace for Sheet metal processing is mainly used for heating and drying the workpiece after powder spraying. Specifically, when the spraying is completed, there will be certain moisture and volatile substances on the surface of the workpiece, which will affect the adhesion and durability of the coating. Therefore, it is necessary to evaporate the moisture and volatile substances on the surface of the workpiece by heating, and make the solvent in the coating evaporate out, so as to improve the adhesion and durability of the coating. At the same time, because the powder coating has high decorative and anti-corrosion properties, the appearance quality and service life of the coating can be further improved by heating and drying in the curing furnace.
From a technical point of view, Sheet metal processing powder spraying curing furnace mainly includes three parts: heating system, control system and insulation system. Among them, the heating system is the core part of the entire curing furnace, which is usually heated by electric heating or gas heating. The control system is used to control the operating state and temperature of the heating system to ensure that the workpiece can reach the required temperature and time. The insulation system is used to keep the temperature in the curing furnace stable to avoid excessive temperature fluctuations due to changes in the external environment. In addition, it is also necessary to consider the safety and environmental protection of the curing furnace, such as the prevention of fire and exhaust emissions.
However, we also need to be aware of some possible influencing factors. For example, because different types of sheet metal materials and powder coatings have different heat conduction properties and curing conditions, reasonable matching and adjustment need to be made according to the specific situation when designing and selecting curing furnaces. At the same time, because the powder coating contains a certain amount of VOC(volatile organic compounds), it is necessary to pay attention to strengthening ventilation and waste disposal measures during use to reduce the impact on the environment.
The application of powder spraying curing furnace in sheet metal processing plays an important role. Through reasonable engineering design and operation, in order to give full play to its advantages, to provide better services for sheet metal processing.
