The Application of Air Heaters in the Plastic Industry

Air heaters are electric heating components produced at the price of modern technology. Suitable for various plastic, chemical, chemical fiber machinery, food packaging, wire and cable machinery. Heating appliances and electric heating accessories for hot air pipelines, oil pipelines, etc.
The metal electric heater series can be divided into three categories based on its foundation and insulation medium.
A. Metal mica heater: High dielectric Ni Bi 2080 alloy electric heating wire is used as the heating element. It is made of natural mica or artificial mica board as an insulator. According to the requirements of external users, different metal plates are used as conductive heating elements, and various shapes of heaters are processed, such as heating rings and heating plates. The normal power of the surface load should be 2.5-3W/cm2. According to the required heating temperature, customers should adopt an automatic temperature control system to ensure the service life of the air heater.
B. Metal casting electric heater: uses metal tubular electric heating elements as the heating element. According to the specifications and shape requirements of the user's heating element, it is bent into various shapes of cast aluminum, cast copper, and cast iron heating elements. This product is currently the ideal heating product for the plastic industry. This product has the advantage of fast heating up. Uniform heating, good thermal conductivity, long service life, etc. According to user requirements, the normal power of the surface load of the casting heater is 2.5-3.5 W/cm2. The normal power of the surface load of the cast copper cast iron heater is 4.0~6.0 W/cm2. Special specifications can be processed according to user drawings.
C. Tubular electric heating element (metal tubular heater): The metal tubular heater is made of a metal shell (titanium steel, stainless steel, carbon steel, copper, and other metal tubes), with nickel carbide heating wires spirally wound along the middle of the tube. According to the required voltage, power, and resistance of the heater. Magnesium oxide tubes and high-purity batteries with good insulation and thermal conductivity are uniformly distributed in the tube gap, using a series of electric heating machines such as tube shrinking furnaces, hot spot furnaces, drying equipment, hot pressing molding, food machinery, barbecues, household appliances, etc. The normal surface load is 4.0~8.0 W/cm2.