Refractory

Fire Clay Brick

  • Friday, 09 September 2022
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Fire Clay Brick

Fire clay bricks are a versatile product that can be used in a variety of applications. They feature an increased thermal shock resistance than their medium-duty counterparts, and are more economical. They are ideal for lining furnaces that operate at moderate temperatures and often undergo shutdowns. Depending on the use, fire clay bricks can have varying percentages of alumina.

Fire clay bricks are composed of silica and alumina. Alumina has a higher melting point than silica, but both are used in combination to form fire bricks. Fire clay bricks are manufactured in a superior type of kiln to keep the fusion temperature low. These bricks are durable and can withstand many re-heating cycles and continuous heat.

The process for producing fire clay bricks involves several steps, including grinding raw material, batching, extrusion molding, high-temperature sintering, cooling, and drying. These steps ensure that the bricks are ready to be used in a variety of applications. The main goal of fireclay brick production is to create bricks of the appropriate shape, size, and proportion.

Fire clay bricks should be allowed to dry completely before laying them on the hearth floor. This will help prevent them from becoming cracked during the firing process. If the pieces are not completely dry, leave a gap between the decorative skin and inner firebricks. As the inner firebricks heat up, they will expand and press against the outer parts. Eventually, the expansion and movement will crack the outer portion. To reduce these risks, filling the gap with ash from the firing process will act as a cushion, insulating the heat and preventing cracks.

High-temperature fireclay bricks are typically higher in volume and have improved thermal shock resistance. This makes them more economical to use for long periods of time. They also feature superior strength and refractoriness. They also feature superior resistance to cracking or spalling during temperature changes. These bricks are ideal for industrial applications and lining the interior of wood ovens and furnaces.

Refractory bricks are made of high-grade alumina. They are designed to withstand temperatures up to PCE 19 and have a high fusion temperature. To make these bricks, high-quality fireclay must also be low in iron oxide. This means alumina-rich fireclay is better for fireclay production than other types of clay. In addition, alumina (kaolinitic) fireclay is more refractory than other types of clay.

Fire clay bricks are manufactured in a similar way to ordinary building bricks. They are molded into brick units and fired at high temperatures in kilns. They are composed of fire clay, a mud-like material that contains high amounts of alumina and silica. Fire clay bricks are resistant to high temperatures and are suitable for a variety of applications.

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