With the continuous improvement of steelmaking eaf power density, constantly strengthening smelting process, it was found that only the lower resistivity of Graphite Electrode and improve the mechanical strength, still can't meet the needs of the smelting. The main problem is that the electrodes are prone to fracture and fragmentation. And steelmaking engineer and electrode manufacturing engineers have gradually realized that this kind of brittle material, stone ink electrode in the process of high strength smelting impacted by the rapid cooling, thermal shock, large temperature gradient is generated in the electrode and thus triggered a powerful thermal stress of Graphite electrode for tolerance to resist the thermal stress and appear broken, breaking. The result of the combination of glass's brittleness, low strength, low thermal conductivity and high thermal expansion coefficient is the result of the explosion of glass in hot water in cold weather. This paper studies how to improve the "thermal shock resistance" of graphite electrode to meet the requirements of high power and high strength smelting process in high power electric furnace.
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