Aluminum-carbon special refractories refer to carbon composite special refractories with alumina and carbon as raw materials, and in most cases, they also include other raw materials, such as SiC, metal Si and Al. Bonded with an organic binder such as asphalt or resin. Broadly speaking, refractories with alumina and carbon as the main components are both called alumina-carbon refractories. According to the different production processes, alumina-carbon refractories can be divided into two categories: unburned alumina-carbon refractories and fired alumina-carbon refractories.