Direct current arc furnace Direct current DC arc furnace for metal melting
Product Description:
A steel-making electric arc furnace supplied by a DC power source. Like AC arc furnace, it uses the arc generated between the electrode and the charge (or molten pool) to generate heat, so as to achieve the purpose of melting, and can be used to melt steel or alloys.
Compared with the traditional AC electric arc furnace, the main advantages of DC electric arc furnace are:
(1) The arc is stable and concentrated, the melting pool is stirred well, the temperature distribution in the furnace is uniform, and the amount of lining erosion is small;
(2) The current and voltage fluctuations are small, the impact on the grid is reduced, and the cable life is extended accordingly;
(3) Less electrode loss, ton steel electrode consumption is 50% less than AC arc furnace. The performance of DC arc furnace is better than that of AC arc furnace, but it has been difficult to obtain high-power DC power supply, so it has not been developed for a long time.
There is only one electrode above the DC arc furnace, which is negative, and the bottom electrode is positive. Its power supply system is different from AC arc furnace, equipped with rectifier and reactor, the bottom of the furnace is equipped with contacts to form a current circuit, the maintenance and life of the contact is the key issue in the operation of DC arc furnace, generally put copper plate on the bottom steel plate to facilitate electricity, copper plate with three layers of magnesia carbon bricks, and then tied refractory material on it.
Packing & Delivery:
Container Package DC ARC Furnace
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Direct Current Arc Furnace Direct Current DC Arc Furnace For Metal Melting Images
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