Electric heating heating method-medium heating

Electric heating heating method-medium heating

Use a high-frequency electric field to heat the insulating material. The main heating object is dielectric. When the dielectric is placed in an alternating electric field, it will be repeatedly polarized (under the action of an electric field, the surface or inside of the dielectric will have equal and opposite charges), thereby converting the electric energy in the electric field into heat.

Electric heating heating method-infrared heating

Use infrared radiation to radiate an object. After the object absorbs infrared, it converts the radiant energy into heat and is heated.

Electric heating heating method-electron beam heating

The surface of the object is bombarded by electrons moving at high speed under the action of an electric field to heat it. The main component for electron beam heating is the electron beam generator, also known as the electron gun. The electron gun is mainly composed of a cathode, a focusing electrode, an anode, an electromagnetic lens and a deflection coil. The anode is grounded and the cathode is connected to the negative high position. The focused beam is usually at the same potential as the cathode, and an accelerating electric field is formed between the cathode and the anode. The electrons emitted by the cathode are accelerated to a high speed under the action of an accelerating electric field, focused by an electromagnetic lens, and then controlled by a deflection coil, so that the electron beam is directed toward the object to be heated in a certain direction.

Electric heating heating method-arc heating

Use the high temperature generated by the arc to heat the object. Arc is the phenomenon of gas discharge between two electrodes. The voltage of the arc is not high but the current is very large. Its strong current is maintained by a large number of ions evaporated on the electrode, so the arc is easily affected by the surrounding magnetic field. When an arc is formed between the electrodes, the temperature of the arc column can reach 3000-6000K, which is suitable for high-temperature smelting of metals.

www.superbheater.com