Clay bricks are made of refractory clay as the main raw material. They are called ordinary clay bricks. They are made of charred gem clinker as the main raw material. Clay bricks with a significant porosity below 17% are called low porosity clay bricks.

Using low-aluminum mullite as the main raw material, it is formed by high-pressure molding and high-temperature sintering. The main mineral composition is mullite phase, and the product has excellent high-temperature physical properties and chemical resistance.

Low porosity clay bricks have good stability, no sudden change in the degree of erosion, and the lifespan of ordinary clay bricks is 2 to 3 times longer. The thermal conductivity, specific heat and solubility are 2 times, 10% and 40% higher than ordinary clay bricks respectively, and the heat storage capacity is 50% to 60% higher than ordinary clay bricks, which can improve the thermal efficiency of the baking kiln.

Raw materials: which of dead burnt clay, dead burnt combined clay, and Henan white coke gemstones are crushed into 5-3mm, 3-1mm, and ≤0.088mm with other 6 kinds of additives to make 6 kinds of mud mixing After being granulated, binder, fine powder, uniform, on a 260T friction pressed brick, use standard bricks to mold into bricks for 6-8 blows, and dry them in a drying kiln at 110°C for 16 hours, until the moisture of the bricks is <1 % Fashion is like fired in a tunnel kiln.

With the continuous development of smelting technology, the requirements for refractory bricks for molten iron tanks are getting higher and higher. However, the common clay bricks are mostly used for molten steel tanks in China. Now the mainstream refractory products.

Features

1.The vent rate is low, 13~15%;

2. The load softening temperature is about 1472*C;

3. High compressive strength at room temperature, generally around 100MPa;

4. Good volume stability at high temperature and good wear resistance;

5. Good anti-penetration and anti-erosion performance.

Application

Low porosity clay bricks are excellent clay refractory brick products, so they are often used in environments with chemical erosion and large temperature fluctuations, such as steel, glass, and chemical industries. The effect is quite obvious in the use of the glass hot chamber and the use of the iron ladle

Physical And Chemical Indicators