Application Research of Electromagnetic Heating technology in the Heating System of Extruder

The traditional resistance heating method,which was generally used in the heating system of extruder,would consume large power energy and bring on heat pollution in environment. The paper analyzed the operating principle of the extruder heating system of a pipe enterprise and the power size of primary resistance heating system and implemented energy-saving reconstruction to the enterprise heating system using electromagnetic heating technology. Results showed that, on the premise of satisfying the process requirement,the electromagnetic heating technology realized rapid,high-efficiency and safe heating,the power-saving rate got over 25%.