Mullite Bricks Used For Hot Air Ducts
Mullite bricks used for hot air ducts are refractory products primarily composed of mullite as the main crystal phase. They are made by using mullite as the main raw material, along with refractory clay, kaolin, zircon sand, and additives. The production process involves mixing, shaping, drying, and high-temperature firing to obtain mullite refractory bricks. 1.Why are mullite bricks used for hot air ducts? The typical lining structure of a hot air duct includes refractory spray coating, refractory fibers, lightweight insulation…