380120kw Electromagnetic Heating Coil
Original heating coil: It heats the barrel through heat conduction, radiation, and convection. The Joule heat generated by resistor R (Joule heat is the heat vibration energy emitted due to atomic collisions when electrons move in the resistor) → passes through insulating material → to the heating coil shell → transfers heat to the barrel. After electrical energy is converted into heat, the heat that can be used on the barrel through conduction and radiation is less than 40%, resulting in a large amount of electrical energy waste, and also deteriorating the working environment of the workshop.
Traditional heating mode: 50% of the heat energy is dissipated into the air
2. Electromagnetic Heating Coil: It uses power electronics and electromagnetic compatibility technology to rectify, filter, and invert the 220V AC power supply into a high-frequency alternating current of 25-30KHZ. This high-frequency alternating current is converted into a high-frequency alternating magnetic field, which, when encountering the metal barrel, is converted back into a high-frequency alternating current. This current causes the heated equipment to generate heat internally. It fundamentally solves the low efficiency problem of resistance-type heating methods such as electric heating plates and rings that rely on heat conduction. Its heating efficiency reaches 96%, reducing the outer surface temperature of the barrel from hundreds of degrees to tens of degrees, while also fully utilizing the frictional heat of the screw, making energy utilization more efficient.
Electromagnetic heating mode: Heat is basically controlled inside the barrel, with no energy loss.
Used in plastic machinery heating, the power consumption comparison values under various resin raw materials clearly show the electricity-saving rate.
