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2019
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11
Using perforated bricks as an example, briefly describe the basic knowledge of refractory materials
Source： Science and Technology Innovation Materials
Release time：2019-11-04 14:10
For steelmakers and the refractory industry, permeable bricks are very important and common refractory products; taking permeable bricks as an example, this article discusses the basic knowledge of refractory materials from four aspects: thermal conductivity, specific heat capacity, refractoriness, and load softening temperature.
For steelmakers and refractory material manufacturers, porous bricks are very important and common refractory products; Taking porous bricks as an example, this article discusses the basic knowledge of refractory materials from four aspects: thermal conductivity, specific heat capacity, refractoriness, and load softening temperature.
(Picture) Refractory materials
Thermal conductivity of refractory materials: Thermal conductivity indicates the ability of a substance to conduct heat. The greater the thermal conductivity, the better the heat conductor. Steel ladle porous bricks have a higher density, and their thermal conductivity is correspondingly higher.
Specific heat capacity of refractory materials: Specific heat capacity indicates the ability of an object to absorb or dissipate heat. The greater the specific heat capacity, the stronger the ability to absorb or dissipate heat. The specific heat capacity of porous bricks is related to their baking and cooling time.
Refractoriness of refractory materials: As mentioned in previous articles, it is a technical indicator that comprehensively considers the material's chemical composition, dispersion, the proportion and viscosity of the liquid phase, etc. Refractoriness is one of the important indicators of refractory materials. When refractory materials are used, they need to be able to withstand the high temperatures of the application scenario; For porous bricks, if the steel water temperature is too high, it will not only affect the service life of the porous bricks but may even cause serious accidents such as steel leakage.
Load softening temperature of refractory materials: Indicates the material's resistance to the simultaneous effects of high temperature and load. Refractory products have very high compressive strength at room temperature, but they will deform and reduce compressive strength under load at high temperatures.
(Picture) Blast furnace iron trough castable
Kechuang New Materials Professionally manufactures refractory materials such as porous bricks, burner bricks, and electric furnace lids, with dozens of invention patents and utility model patents. A professional manufacturer worthy of trust! Luoyang Kechuang New Materials Co., Ltd., focusing on the R&D, production, and sales of porous bricks and other refractory materials for 22 years, is a professional refractory materials manufacturer.
Source: Luoyang Kechuang New Materials Co., Ltd.: https://www.kcnh.com/
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