Centrifugal casting tube usually adopts the technology of the centrifugal casting processing is completed, the centrifugal casting technology has many advantages, such as saving metal material and greatly improve the performance of casting pipe has great advantages, such as centrifugal casting process generally has eight process, respectively, metal filter, pouring temperature, casting speed, slag, coating use, casting solidification under type, gating system and pouring quantitative, the casting process had a great influence on the performance of the centrifugal cast pipe, need special attention in the process.