What is the functional refractory material? Functional refractory material is a kind of special refractory material to form with the development of iron and steel metallurgy continuous casting technology. 
Also known as metallurgical refractory material. Or it can be defined as: functional refractory material is with special or special preparation process with special properties and structure of a kind of high-grade refractory materials, plays a role in the process of using specialized in high temperature. In a sense, can be called refractory functional element.
Also known as metallurgical refractory material. Or it can be defined as: functional refractory material is with special or special preparation process with special properties and structure of a kind of high-grade refractory materials, plays a role in the process of using specialized in high temperature. In a sense, can be called refractory functional element.
Refractory products currently include functional refractories are: sliding gate, long nozzle, stopper, submerged entry nozzle (also known as the continuous casting three pieces), permeable brick and fixed diameter nozzle. Each product plays a role in the use of special casting process, such as control flow, air blowing agitation; prevent the two oxidation protective casting, decision flow field of molten steel in the crystallizer.
Functional refractories are presented as a separate refractory material, not only because they are single member in the form of application and the special function in use, 
but also in the fact that this kind of material is required to meet the usually more demanding conditions of use of the special function, to meet the special structure using function according to the special manufacturing process.
but also in the fact that this kind of material is required to meet the usually more demanding conditions of use of the special function, to meet the special structure using function according to the special manufacturing process.
Compared with other steel smelting furnace lining refractory products, to a certain extent, the quality which may affect the lining service time, and functional refractory material quality, it may affect the whole casting process can be. This requires a functional refractory material not only with the conventional contact of liquid steel, slag and liquid refractories also to have the advantages of high temperature resistance, basic function, slag and liquid steel erosion and, according to different conditions, with special or special requirements in structure, material, production technology and process in the use of safe and reliable performance.
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