In the iron and steel metallurgy industry, refractory materials are indispensable basic materials. Refractories generally refer to inorganic non-metallic materials or products with a refractoriness of not less than 1580℃, which are mainly used in blast furnaces, converters, and coke ovens in the ironmaking industry, and converters, secondary refining furnaces, continuous casting, etc.
In the steelmaking industry. Used in cement kilns, kilns for glass and non-ferrous metals, etc. In the process of steel smelting, refractory materials must not only serve as a container for holding molten iron and molten steel, to ensure production efficiency and service life; but also to ensure that the quality of the steel is stable and does not pollute the molten steel.
In recent years, as aerospace technology, automotive, microelectronics and other industries have put forward increasingly stringent requirements for the strength, toughness, and processing properties of steel, the requirements for refractory materials used in the steel smelting process have also increased. In the whole process of steel smelting, it is necessary to use refractory materials with excellent performance to avoid the corrosion of molten iron or molten steel causing the refractory materials to pollute steel non-metallic inclusions or harmful elements O, P, S, N, and H.
At the same time, environmentally-friendly raw materials need to be rationally optimized and designed to obtain non-polluting, superior performance, economic benefits and long-life refractories, which can meet the requirements of green and environmental protection while improving production efficiency and economic benefits.