Article List
- How to define secondary refinementSecondary refining refers to the refining outside the traditional steelmaking furnace (such as open hearth, refined furnace, electric furnace). The main tasks of refining are deoxidation, desulfurization, dephosphorization, decarburization, removal of inclusions, alloying and fine-tuning of compositZBTECH News March 22, 2021
- What is Electric arc furnaceElectric arc furnace steelmaking uses electric energy as heat energy, and uses the high temperature of the electric arc generated between the electrode and the charge to heat and melt the charge.ZBTECH News March 17, 2021
- LF ladle refining furnaceLF ladle refining furnace consists of ladle, furnace cover, electrode heating system, and argon stirring system. Argon gas is blown into the breathable brick installed at the bottom of the ladle to stir the molten steel to complete the reaction between steel and slag.ZBTECH News March 15, 2021
- Introduction to ladle refiningeditOut-of-furnace refining divides the traditional steelmaking into two steps. The first step is called primary smelting, which involves melting, dephosphorizing, decarburizing and main alloying of the charge in an oxidizing atmosphere;ZBTECH News March 19, 2021
- Ferroalloy submerged arc furnace: a solution to the temperature rise and redness at the bottom of the furnaceTraditional ferroalloy submerged arc furnaces generally use pre-baked carbon blocks and wide coarse joints to build the furnace lining, and adjust the primary current to control the depth of the electrode inserted into the furnace (that is, the load of the electric furnace). Take the main equipment of a company's 2*25.5MVA submerged arc furnace as an example. Its lining adopts semi-graphite charcoal brick fine-seam masonry technology, but the redness of the furnace bottom appeared three months after the furnace was opened. Through fine furnace anatomy and cause analysis, find out the solution to the problem.ZBTECH News March 12, 2021
- Introduction to the electric arc furnace steelmaking process and the art processThe operation of adjusting the slag composition, alkalinity, viscosity and reaction ability in the production of steel and iron. For example, the oxygen blowing operation is to generate slag with sufficient fluidity and alkalinity, which can transfer enough oxygen to the metal surface, so as to reduce the sulfur and phosphorus below the upper limit of the planned steel grade, and make the oxygen spray splash The amount of slag and spillage is minimized.ZBTECH News March 10, 2021
- Electric arc furnace steelmaking process: the damage mechanism of refractory materials in various partsThe furnace top, also known as the furnace cover, is in a circular arch shape and can be moved. The outer ring is a water-jacketed steel structure. During the smelting process, the furnace roof (especially the central part of the furnace roof, around the electrode hole and the dust removal hole) is at high temperature for a long time. The state of the furnace is also affected by sudden changes in temperature. The chemical corrosion of furnace gas and slagging powder, the radiation of electrode arc and the erosion of smoke and dust, the dust on the furnace roof also produces pressure and hinders heat dissipation. The furnace roof is also subject to mechanical The function of vibration, the working conditions are very bad, it is the weak link of the whole furnace lining.ZBTECH News March 08, 2021
- Comparison of DC electric arc furnace and traditional AC electric arc furnaceCompared with traditional AC electric arc furnaces, there are those advantages. Do you know what electric arc furnaces are? In fact, electric arc furnaces are tools used to make steel. There are many types of electric arc furnaces. Different types of electric arc furnaces use different steelmaking methods. The DC electric arc furnace is derived from the DC electric arc furnace, so what are the advantages of the DC electric arc furnace? Today I will introduce you to the advantages of the DC electric arc furnace.ZBTECH News March 05, 2021
- Electric arc furnace: analysis of the advantages of bottom blowing technologyElectric arc furnace: analysis of the advantages of bottom blowing technology. (1) It promotes the melting of scrap steel and reduces the soft melting phenomenon in the cold zone, in order to help eliminate the cold zone existing in the electric arc furnace steelmaking process.ZBTECH News March 03, 2021
- Problems in the development of electric arc furnacesWhat are the problems in the development of industrial electric arc furnaces in my country?? Analysis of the status quo of industrial development in my country. Industrial electric arc furnaces are a kind of energy conversion equipment. The input energy is in the form of chemical energy in fuel, electric energy, and heat energy of high-temperature flue gas.ZBTECH News February 26, 2021