What is extruded aluminum fin tube?

What is extruded aluminum fin tube?

Extruded aluminum fin tubes are heat exchanger tubes made of base tube with external aluminum fins attached to their surface. The fins are created by extruding the aluminum tube through a die with fins on its surface. This process forms the fins and the tube as a single piece, providing a strong and durable product.

Extruded aluminum finned tube consists of two parts:

The first part is the base pipe, which can be steel pipe, alloy pipe and stainless steel pipe. The mechanical properties, temperature resistance, pressure resistance and corrosion resistance of the base pipe are good;

The second part is the fin, which is generally made of aluminum. Aluminum has light weight, low price, easy processing, good atmospheric corrosion resistance and beautiful appearance; The fins have high strength and can withstand high-pressure flushing and descaling; Generally, the contact thermal resistance between the fin and the base tube will not be increased due to the corrosion and oxidation of the base tube, and the heat transfer performance is slightly better than the wound fin tube.

The fins on the extruded aluminum fin tube increase the heat transfer surface area, making the tube more efficient at transferring heat. This increased efficiency allows for smaller heat exchangers to be used or higher heat transfer rates to be achieved. The fins also provide improved airflow around the tube, improving heat dissipation.

Extruded aluminum fin tube applications:

Extruded aluminum fin tubes are comapplicationsmonly used in a wide range of applications, including HVAC systems, refrigeration systems, power generation, and chemical processing. They are particularly useful in air-cooled heat exchangers, where the fins improve the heat transfer from the hot fluid to the surrounding air.

Extruded aluminum fin tube advantages:

The aluminum used in extruded aluminum fin tubes has several advantages over other materials commonly used in heat exchangers. Aluminum is lightweight, has high thermal conductivity, and is resistant to corrosion. Additionally, aluminum can be easily formed into a variety of shapes and sizes, making it highly customizable to meet specific heat transfer requirements.

The composite radiator using extruded aluminum finned tubes is a new industry in China. It is a substitute for cast iron radiator.

Overall, extruded aluminum fin tubes are a cost-effective and efficient solution for heat transfer applications where durability, high efficiency, and resistance to corrosion are required.

Extruded aluminum fin tube