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Ladle refining furnace is an important metallurgical equipment used to refine the molten steel melted in primary smelting furnace (electric arc furnace, open hearth furnace and converter), and can adjust the molten steel temperature and process buffer to meet the requirements of continuous casting and continuous rolling. Ladle furnace is one of the main equipment for refining outside the furnace.
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Electric arc furnace is an electric furnace that uses the electric heating of electric arc to smelt metal. In the electric arc furnace, there are one or more electric arcs. By the action of arc discharge, the electric energy is transformed into heat energy to supply the heat required to heat the smelting materials.
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The traditional electric arc furnace steelmaking is a full scrap process, mainly cold scrap, with about 10% pig iron added. Other raw materials used in modern EAF steelmaking include: in addition to cold pig iron, direct reduced iron (DRI, HBI), hot molten iron, iron carbide, etc.
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Electric arc furnace is an effective container for smelting minerals or metals. What is the principle of electric arc furnace? How does it complete the smelting of certain substances?
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The conventional equipment of ladle furnace includes: LF, VD, VOD, etc. It is the most widely used refining equipment outside the furnace in the world. It’s used to refine the molten steel melted in the primary refining furnace (medium frequency furnace, electric arc furnace, converter), and can adjust the molten steel temperature and buffer the process.
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The main influencing factors of ferrosilicon furnace dust collector include: flue gas working condition (composition, temperature, moisture content, dust concentration, dew point value, sulfur content, etc.), dust properties (particle size, dust particle composition, adhesion, wettability, etc.), flue gas speed in the electric field, air leakage rate of dust collector, electrode hypertrophy, electrode operation, etc.
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Electric arc furnace is an electric furnace for smelting ore and metal at high temperature produced by electrode arc, which is suitable for smelting high-quality alloy steel. With the increase of service time of electric arc furnace, a small number of vulnerable parts need to be replaced at any time, mainly including copper electrode, copper wire mesh, quartz tube, etc. So, how should these parts be replaced?
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The harm and action mechanism of sulfur in nickel base superalloy were summarized, indicating the necessity of further controlling the sulfur content in the alloy. In order to further improve the desulfurization efficiency of electroslag remelting nickel base superalloy in electroslag remelting furnace, the desulfurization effect of electroslag remelting process of GH4169 under different remelting conditions was experimentally studied, and the experimental results were thermodynamically analyzed and discussed.
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