According to different temperature resistance, casting heaters are divided into cast copper heaters, cast iron heaters and cast aluminum heaters.
The temperature resistance of cast aluminum heaters is the lowest, generally about 300 degrees, the cast copper heaters is generally about 800 degrees, and the cast iron heaters is about 900 degrees.
The cast copper heaters: 3.5-5.0w/cm2. The maximum working temperature of cast copper heater is between 600-700℃. It has the advantages of long life, good thermal insulation performance, strong mechanical performance, corrosion resistance, and magnetic field resistance.
The surface load of the cast aluminum heaters are 3.5-5.0w/cm2. The use temperature of cast aluminum heater is generally between 150 and 450 degrees Celsius, and can be widely used in plastic machinery, die heads, cable machinery, chemical industry, rubber, petroleum and other equipment.