Clay Brick
Clay brick is a refractory product with AL2O3 content of 30%~48% produced from refractory clay. Clay bricks are widely used in many thermal equipment such as blast furnaces, hot blast furnaces, steel drum linings and steel pouring systems. Its production accounts for more than half of the total production of refractory materials. Clay bricks are divided into varieties such as ordinary clay bricks, multi-clinker clay bricks, whole raw clay bricks, and high-siliceous clay bricks.
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Low-porosity clay brick is a kind of refractory material with excellent performance, low-porosity clay brick, also known as dense clay brick, is a kind of clay brick produced in the production process that focuses on controlling porosity. It adjusts the porosity size of the clay brick by adding different proportions of raw materials such as pyrogem, so as to increase the density of the clay brick, so that it has the characteristics of low porosity and good compactness.
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Low creep clay bricks refer to fired clay products with low creep rate, low creep clay bricks are divided into DRN-128A, DRN-128B, DRN-125, DRN-120, DRN-115, DRN-110, DRN-105 seven grades according to physical and chemical indicators, the number in the grade represents 1/10 of the creep rate test temperature, and the letters A and B represent the grading code of different grades of the same grade.
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Thermal shock resistant clay bricks
Thermal shock resistant clay bricks refer to fired clay products with good thermal shock performance, and thermal shock resistant clay bricks are divided into two grades: RZN-42 and RZN-40 according to physical and chemical indicators. In the grade, R, Z and N are the initials of Chinese pinyin for heat, vibration and viscosity, and the number is the mass fraction of aluminum oxide.
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Clay bricks for hot blast stoves
Clay bricks for hot blast stoves are generally used in the lower part of the hot blast furnace, masonry hot blast furnace walls, whirlpool bricks and lattice bricks, that is, the low temperature area and medium temperature area of the hot blast stove.
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Clay refractory bricks for resistance furnaces
Clay refractory bricks for resistance furnace have good thermal shock resistance and thermal shock resistance, and are suitable for a variety of high-temperature thermal equipment.
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