What is silica bricks?

Silica bricks are refractory bricks made from silica, a natural mineral found in rocks and sand. Silica bricks have a high silica content of over 94%, making them highly resistant to thermal shock and corrosion, and suitable for use in high-temperature applications.

Silica bricks are commonly used as lining materials in various types of furnaces and kilns, including coke ovens, glass tanks, blast furnaces, reverberatory furnaces, and electric arc furnaces. They can withstand temperatures of up to 1700°C and provide excellent resistance to slag attack and erosion by molten metals and chemicals.

Silica bricks are manufactured through a process that involves mixing quartz powder with a small amount of clay, forming the mixture into bricks, drying and firing the bricks at high temperatures to vitrify the silica particles and form strong bonds between them.

Silica bricks come in different shapes and sizes, including standard bricks, arch bricks, wedge bricks, and tiles, and can be customized to fit specific furnace designs and operating conditions. They are known for their excellent thermal stability, low thermal conductivity, and good mechanical strength, and are widely used in various industries such as steel, non-ferrous metals, glass, ceramics, and cement.