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Iron blast furnaces[edit]Blast furnaces are still an important part of modern ironmaking production. Modern furnaces are very effaicient, including Cowper furnaces for preheating the blast and employing recovery systems to extract heat from the hot gases exiting the furnace. Industry competition dri
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Vacuum induction melting (VIM) uses an electric current to melt metal in a vacuum. The first prototype was developed in 1920. [1] Induction heating induces eddy currents in the conductor. The eddy currents create a thermal effect to melt the metal. [2] Vacuum induction melting has been used in the a
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Smaller arc furnaces may be adequately cooled by circulation of air over structural elements of the shell and roof, but larger installations require intensive forced cooling to maintain the structure within safe operating limits. The furnace shell and roof may be cooled either by water circulated th
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Secondary refining refers to the refining outside the traditional steelmaking furnace (such as open hearth furnace, refining furnace and electric furnace). The main tasks of refining are deoxidation, desulfurization, dephosphorization, decarburization, inclusion removal, alloying and fine adjustment of composition. Statistics on the world crude steel output show that the world crude steel output has continued to grow in ups and downs in the past 30 years.
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omestic electric furnace manufacturers should establish a modern enterprise management system and actively implement international quality management standards. Competition in the electric furnace equipment market will further force companies to reduce costs, and competition will make the profit tre
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