The production principle of the extruded finned tube is as follows:
A mandrel is lined in the bare tube, driven by the rotation of the roller blade, the seamless steel tube is processed into fins on its outer surface through the cavity formed by the rolling groove and the core head. The finned tube produced by this method has a high heat transfer efficiency because the base tube and the outer fin are an organic whole, so there is no problem of contact thermal resistance loss.
Extruded finned tubes
Extruded finned tube technology has been successfully applied to single finned tubes or composite finned tubes with copper and aluminum fins, or steel low-finned tubes; steel integral finned tubes are mostly low-finned tubes in the market. The fin tube and the integral high fin tube are mostly made of aluminum, copper, etc., and are generally formed by cold rolling.
Extruded finned tube
Advantages of extruded finned tubes
Compared with the welded finned tube, the extruded finned tube has the advantages of high production efficiency, low consumption of raw materials, and high heat transfer rate of the produced finned tube.
Extruded finned tubes for heat exchangers and condensers
Extruded finned tubes for heat exchangers and condensers
1.The density of aluminum is low, and the strength of structural steel can be achieved by alloying and heat treatment. Aluminum heat exchangers and condensers are used in various vehicles, especially small cars, which will definitely reduce their own weight and reduce fuel consumption.
2.Aluminum has good corrosion resistance. The oxides produced by aluminum products under harsh conditions are non-toxic. For heat exchangers and condensers made of aluminum, there is no need to worry too much about the failure of air or liquid in the tube after a long time.
3.Aluminum has good thermal conductivity and is especially suitable for heat sinks, evaporators and condensers for heat exchange, etc.
4.Aluminum has high yield strength, resistance to stamping, and the process of forming is more convenient.
