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Physicochemical Specifications of High-Alumina Anchoring Bricks for Heating Furnaces
2021-11-12
The heating furnace consists of several components, including the furnace roof, furnace walls, furnace bottom, flue, and heat exchanger. Its inner lining is constructed using fire-resistant bricks. Now, let’s take a closer look at the physicochemical properties of high-alumina anchor bricks used in heating furnaces—please see the detailed explanation below.
Commonly used refractory bricks for heating and heat treatment furnaces include clay bricks, high-alumina bricks, silica bricks, magnesia bricks, and carbonized brick products. Anchor and suspension bricks for heating furnaces are typically made from high-alumina materials with an Al₂O₃ content of 55% or higher, boasting a bulk density of approximately 2.34 g/cm³, a compressive strength exceeding 50 MPa, and a post-firing linear expansion of around 0.05% at 1500°C. Suspension bricks feature a distinctive wavy or serrated shape, with cross-sectional dimensions of either 100 × 120 mm or 180 mm. Their length should surpass the thickness of the furnace lining, while metal suspension components are strategically positioned away from high-temperature zones or exposed to air—both measures designed to extend the service life of the bricks and simplify maintenance and repair operations.
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Address: Cuigou, Pingmo Town, Xinmi City, Zhengzhou, Henan Province
Phone:+86-371-63090999 63100777
E-mail:zhengzhouzhenda@163.com
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