Halogen infrared heating lamps can indeed be used for rapid heating. Here is a detailed introduction:
Working principleHalogen cycleThe filament of the halogen heating lamp is made of tungsten. When current passes through the tungsten filament, the tungsten filament heats up to produce light and heat. In this process, due to the high temperature, the tungsten filament undergoes sublimation, that is, the tungsten atoms change directly from solid to gas.The halogen (usually iodine or bromine) reacts chemically with the sublimated tungsten in the high temperature environment inside the bulb to form tungsten halides. The chemical properties of tungsten halides are relatively active. It will decompose in the high temperature area near the filament and redeposit tungsten on the filament. This cycle process allows the filament to maintain a high temperature continuously, thereby ensuring the efficient heating performance of the heating lamp.Infrared radiationWhen the filament is heated to a high temperature, it radiates energy outward, a large part of which is infrared. Infrared is an invisible light with a wavelength range of approximately 760 nanometers to 1 mm. According to the Stefan-Boltzmann law, the radiation energy of an object is proportional to the fourth power of the temperature. Since the filament temperature of the ir lamps for drying is very high, it can radiate a large amount of infrared rays.After the heated object absorbs infrared rays, the molecules and atoms inside it will vibrate and rotate more vigorously, thereby increasing the internal energy of the object and raising the temperature. This heating method is a non-contact heat transfer. Compared with traditional heat conduction and convection heating methods, infrared halogen heating tube can transfer energy to the heated object more directly and quickly.
Advantages Reasons for rapid heatingHigh energy densityThe power density of short wave infrared heater lamp is usually high, reaching tens of watts per square centimeter or even higher. This means that a large amount of heat can be provided per unit area, which can quickly increase the surface temperature of the heated object in a short time. For example, in some industrial drying production lines, the use of halogen infrared heating lamps can quickly dry coatings, inks and other materials, greatly improving production efficiency.Instant responseUnlike some heating equipment that requires a long preheating time, Electric Infrared Heat Lamp can start heating almost immediately after turning on. This is because its filament heats up and starts radiating infrared rays the moment it is powered on. For example, in food processing, when the food surface needs to be quickly heated, such as baking bread, grilling meat, etc., the halogen infrared heating lamps can quickly turn on and provide heat, so that the food surface quickly forms an attractive color and a crispy taste.Good directionalityHalogen Heater Replacement has a certain directionality, and the halogen infrared heating lamp can concentrate the heat on the area that needs to be heated. By adjusting the angle and position of the Quartz Infrared Heating Lamps, the halogen quartz tube heater element can be accurately irradiated on the heated object, reducing the heat loss in other directions that do not need to be heated. This is very effective in some local heating application scenarios, such as rapid heating of solder joints in electronic products, or heating of local repairs of plastic pipes.
Application scenario examplesIndustrial fieldIn the plastic processing industry, halogen heating bulbs are used for processes such as stretching, blow molding and thermoforming of plastic films. During the thermoforming process, the heating lamp can quickly heat the plastic sheet to the softening point, so that the plastic can be quickly formed in the mold and improve production efficiency.In the automotive paint shop, it is used to quickly dry the paint on the surface of the car body. Under the radiation of infrared rays, the solvent of the paint evaporates quickly and the paint film solidifies quickly, shortening the time cycle of automobile painting.Food processing fieldIn the baking industry, it is used for baking bread, pastries and other foods. It can quickly form a caramelization reaction on the surface of the food, making the surface of the food golden and crispy.In meat processing, it is used for surface baking of barbecue, which can lock the gravy in a short time and form delicious grill marks on the surface of the barbecue.Medical fieldIn physical therapy, it is used for local heating treatment. For example, infrared irradiation of muscle strain, joint pain and other parts can quickly accelerate local blood circulation and relieve pain and inflammation.
