Analysis of the reasons for graphite electrode breakage in electric furnace steelmaking
In order to make the graphite electrode play a greater role, it is necessary to purchase from regular manufacturers. Jinju Graphite Electrode Factory will ensure the quality of your products. Steel mills need to strengthen process control.
Jinju Graphite Electrode Manufacturer analyzes the reasons for graphite electrode breakage in electric furnace steelmaking for you:
Quality problems of graphite electrodes: If the physical parameters of graphite electrodes such as tensile strength and bending strength are too poor, the electrodes will easily break during use. In addition, the quality of electrode joints also directly affects the use of electrodes. Problems such as low joint volume density, high resistivity, and insufficient bending strength will cause the electrodes to break.
Thermal stress: During the heating and cooling process of the electric arc furnace, the temperature of the graphite electrode changes greatly, and it is easy to crack under the action of thermal stress, resulting in breakage.
Joint problems: The quality of the joints is directly related to the use of the electrode. Problems such as low joint volume density, high resistivity, and insufficient flexural strength will cause the joint to break or loosen, thus affecting the use of the electrode.
Control reasons: including non-conductive objects under the electrode in the furnace, the electrode regulator cannot detect the arc current, and the hydraulic drive mechanism of the electrode regulator is abnormal. These problems will cause improper control of the electrode regulator, causing the electrode to continue to fall, resulting in the electrode and scrap steel being squeezed and broken.
In summary, steel mills need to strengthen process control. In the production process of electric furnaces, furnace temperature and molten pool depth must be strictly controlled to avoid excessive smelting temperature and excessively deep molten pool, reduce thermal stress of graphite electrodes, and thus reduce the occurrence of breakage. In order to better make graphite electrodes play a greater role, purchase from regular manufacturers, and Jinju Graphite Electrode Manufacturer will check the quality of your products.
