Lord Fin Tube- Extruded Bimetallic Finned Tubes

What are extruded bimetallic finned tubes?

Extruded bimetallic finned tubes are a type of heat transfer element used in heat exchangers and other applications where efficient heat exchange is required. These finned tubes are composed of two different metals joined together: an outer finned layer and an inner tube layer.

How to process extruded bimetallic finned tubes?

The manufacturing process begins by extruding a thin layer of a high-conductivity metal, such as aluminum or copper, onto the outer surface of a base tube made of a different metal, typically steel or stainless steel. The extrusion process involves forcing the high-conductivity metal through a die, which forms the fins and bonds them securely to the base tube.

Extruded bimetallic finned tubes advantages

The bimetallic construction of these finned tubes offers several advantages. The high-conductivity metal, such as aluminum or copper, provides excellent thermal conductivity, promoting efficient heat transfer. Meanwhile, the base tube material offers mechanical strength and resistance to corrosion or other environmental factors.

Extruded bimetallic finned tubes applications 

Extruded bimetallic finned tubes are commonly used in applications where there is a need for high thermal performance combined with the mechanical strength and durability of the base tube material. These finned tubes find extensive use in industries such as power generation, petrochemical, HVAC, and refrigeration.

1. Heat exchangers units for power plant(electric, nuclear, thermal and geothermal power plants);

2. High corrosive systems (condensers, evaporators, sea water desalinations, fertilizing, urea systems, ammonia, gas, corrosive acids);

3. The petroleum, chemical and petrochemical industries;

4. The food processing and refrigeration industries;

5. Natural gas treatment.

The fin design on the extruded bimetallic finned tubes can vary, depending on the specific application requirements. The fins can be straight or helical, with different heights, thicknesses, and geometries to optimize heat transfer efficiency. The increased surface area provided by the fins enhances the heat exchange process between the fluid flowing inside the tubes and the surrounding environment.

Overall, extruded bimetallic finned tubes offer an effective solution for heat transfer in various industries, combining the benefits of high thermal conductivity and mechanical strength. Their design allows for efficient heat exchange while maintaining durability and resistance to environmental factors.

Extruded bimetallic finned tubes