Infrared heating lamp for heating EVA film

Infrared heating lamps can also be applied to EVA film heating. The following is the relevant introduction:

The principle of infrared heating lamp for heating EVA film

The infrared radiation emitted by the infrared heating lamp is absorbed by the EVA film and converted into heat energy, causing the temperature of the film to rise. After absorbing infrared energy, the molecules in EVA film move more vigorously, generate heat through intermolecular friction, and achieve uniform heating.

Key points for choosing an infrared heating lamp

• Wavelength selection: EVA film has good absorption characteristics in the near-infrared band (0.75 µ m-1.5 µ m). Choosing an infrared heating lamp in this wavelength range can enable the film to quickly absorb energy and improve heating efficiency.

• Power determination: Select the appropriate power heating lamp based on the width, thickness, and heating speed requirements of the EVA film. Generally speaking, when the width and thickness of the film are large, or when rapid heating is required, a higher power heating lamp should be selected. For example, for an EVA film with a width of 2 meters and a thickness of 0.5 millimeters, in order to reach the predetermined temperature in a short period of time, an infrared heating lamp group with a total power of 5-10 kilowatts may be required.

Heating uniformity: To ensure uniform heating of EVA film, an infrared heating lamp with a reflective cover can be selected, and the position and angle of the heating lamp should be arranged reasonably. The reflector can reflect infrared rays onto the thin film, reducing energy loss and making heating more uniform. For example, by using multiple low-power heating lamps evenly distributed above the film and optimizing the design of the reflector cover, the surface temperature deviation of the film can be controlled within a small range.

Application advantages

• Efficient and energy-saving: The infrared heating lamp directly radiates energy onto the EVA film, which can be quickly absorbed and converted into heat energy. Compared with traditional heating methods, it can reduce the loss of heat during transmission and has a significant energy-saving effect, generally saving 20% -30% of energy.

• Fast heating speed: It can quickly reach the required temperature of EVA film and improve production efficiency. For example, on some EVA film production lines, the use of infrared heating lamps can shorten the heating time to 1/3-1/2 of the original.

• Accurate temperature control: With a high-precision temperature control system, the infrared heating lamp can accurately control the heating temperature of EVA film, which is conducive to ensuring the stability of product quality. For example, the temperature control accuracy can reach ± 1 ℃, effectively avoiding changes in film performance caused by temperature fluctuations.