Bimetallic composite finned tube

　　Composite finned tube refers to a type of heat transfer tube that uses two (or more) different treatment methods to enhance the heat transfer of fins. Its prominent feature is the ability to integrate the advantages of different reinforcement methods on the same fin, thereby achieving better overall performance. The bimetallic rolled composite finned tube consists of a base tube and fins wrapped around it. The base tube is usually made of carbon steel pipe, stainless steel pipe, or copper pipe. The aluminum tube is wrapped around the outside and then extruded into fins using a special rolling mill. At the same time, a thin bottom layer is formed outside the base tube to tightly wrap the base tube