Slagging: Adjust the steel and iron production of slag composition, alkalinity and viscosity and their response operations.
Tapping : according to various smelting conditions and purpose of electric arc furnace steelmaking taken place in the smelting process residue or slag operation.
shaking down : the supply of energy to the metal bath, the molten metal and slag to produce movement, to improve the conditions of the kinetics of metallurgical reactions. Bath stirring by means of gas, mechanical, electromagnetic induction method.
Melting period: the melting period of the steel-making, open hearth and electric furnace steelmaking. Electric arc furnace steelmaking from the power to charge all melt clear until the open-hearth against the finished molten iron to the charge of all finished so far are said to melt. The melting of the task as soon as possible and charge melting and heating, and made good melting of the slag.
Refining: steel-making process through the slag and other methods on the quality of steel harmful elements and compounds, chemical reactions elected to the gas or rows of floating into the slag, so excluded from the liquid steel process operation period.
Secondary Refining: The refining process of steelmaking furnaces before the beginning of refining molten steel to another container, also called secondary metallurgy. The steelmaking process is therefore divided into primary smelting and refining in two steps.
Inert gas processing: blown inert gas to the liquid steel, this gas does not participate in the metallurgical reactions, each small bubbles rise in the molten steel is but the equivalent of a small vacuum chamber (bubbles of H2, N2, CO partial pressure close to zero), the role of the “gas washing”. The principle of the method of production of stainless steel refining furnace, is the application of different CO partial pressure of carbon chrome and temperature balance between. Refining with an inert gas plus oxygen decarbonization can reduce the carbon-oxygen reaction of CO partial pressure, low temperature conditions, the lower carbon content and chromium is not oxidized.
The composition control: to ensure that the finished steel components comply with all requirements of the standard operation. Composition control throughout all aspects of the ingredients to a steel, but the focus control on the composition of alloying elements in the alloying.
Out of steel: the temperature and composition of the liquid steel to meet the steelmaking requirements of species of the molten steel release operation. Out of steel to prevent slag into the ladle. Used to adjust the temperature of molten steel, composition and deoxidation with additives in the process of tapping the ladle or the steel stream.
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