wanhaorefractory

  The EAF gunning material bears the same high temperature and harsh working environment as the repaired furnace lining during the smelting process. Therefore, in addition to high refractoriness, erosion resistance, erosion resistance, spalling resistance, etc., the EAF gunning mix must also be compatible with the repaired furnace lining. The lining has good adhesion. The gunning materials for electric furnaces include magnesia, magnesia-dolomite, magnesia-chromite, magnesia-carbon, magnesia-dolomite-carbon, etc., and some highly active seawater magnesia are used in the aggregate. To promote sintering and improve the density and strength of the gunning layer. In order to make the gunning material solidify quickly during the gunning operation and attach to the furnace lining at the same time, a small amount of additives are often added to the aggregate. 1.When adding Al, Mg and other low melting point metal powders for gunning, the oxidation heat of metal powder helps

  The magnitude of the impact of the Russian-Ukrainian conflict varies by region, depending on the region’s direct trade and financial exposure to Russia and Ukraine. The conflict had a direct and devastating impact on Ukraine, and the European Union was also affected to a certain extent due to its high dependence on Russian energy. Not only that, the impact of the Russian-Ukrainian conflict has also spread globally due to rising energy prices (especially the  refractory raw materials  needed for steel production), resulting in continued disruption of supply chains in some regions, a problem that has plagued the global steel industry even before the conflict broke out. The impact of the Russian-Ukrainian conflict continues to spill over, superimposed on the slowdown of China’s economic growth, the World Steel Association predicts that the growth of global steel demand in 2022 is expected to decrease. In addition, the continuous outbreak of the new crown pneumonia epidemi