Definition and working principle of DC arc furnace! DC arc furnace is a device that uses DC arc to heat and melt metals. It mainly consists of electrodes, arc furnace shell, power supply, and control system. The working principle of a DC arc furnace is as follows:
Electrode introduction: Two electrodes, usually carbon electrodes, are set on the arc furnace shell. The electrodes are introduced into the electric arc furnace through a power source. Arc formation: When the electrode comes into contact with a metal material, a voltage is applied through a power source to form an arc discharge. An arc is formed between the electrodes, producing high temperature and strong energy. Heating and melting: The high-temperature energy generated by arc discharge heats and melts metal materials. Molten metal flows by gravity or other means, forming a molten pool. Temperature control: By controlling parameters such as arc current, voltage, and arc length, the temperature of the molten pool and the quality of the molten metal material can be controlled. The working principle of DC electric arc furnace is simple and * *, which makes it widely used in metallurgy, steelmaking, ironmaking and other industries.