Corundum Bricks Used in Electric Kilns

2023-07-04 09:24:43

Electric kiln is a device that uses electric energy as a heating source. Corundum brick is a high-performance refractory brick made of corundum and other refractory materials, which can be used for a long time at a high temperature of 1600 degrees.

Electric kilns are often used in processes such as high-temperature sintering, melting, and heat treatment. Since the working temperature of electric kilns is usually high, reaching or even exceeding 2000 degrees Celsius, it is necessary to use refractory materials that can withstand high temperatures.

Corundum bricks are widely used in the lining of electric kilns because of their excellent high-temperature performance. Corundum has a melting point of more than 1900 degrees and good high-temperature resistance and can maintain stability in high-temperature environments. Corundum brick not only has good refractory performance, but also has high thermal conductivity and excellent wear resistance, and can withstand high temperatures and chemical corrosion inside the electric kiln.

Corundum bricks are commonly used in the inner wall of the furnace cavity, furnace bottom, and furnace roof in electric kilns. They effectively insulate the high temperature inside the cavity, provide even heat distribution and protect the structure of the cavity from damage.

It should be noted that corundum brick is a refractory material with relatively high alumina content, and its cost is relatively high. Therefore, when selecting refractory materials, it is necessary to comprehensively consider factors such as operating temperature, process requirements, and economic costs to ensure the long-term stable operation of electric kilns.

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