¿Qué es el tubo de aletas de aluminio extruido?

El tubo de aletas de aluminio extruido está formado como tubos bimetálicos. El tubo de aleta de aluminio extruido incluye un tubo base y un tubo de manguito de aluminio. Las aletas se forman mediante un proceso de laminación en frío a partir del espesor de pared del tubo de manguito de aluminio. La aleta extruida brinda muy buena protección contra la corrosión al tubo base, ya que el tubo base no es visible a la atmósfera entre las aletas.

¿Cómo fabricar el tubo de aleta de aluminio extruido?

La aleta extruida está hecha de un tubo exterior de aluminio con una pared gruesa (manguito) que está alineada sobre un tubo base interior. Los dos tubos se empujan a través de tres ejes con discos giratorios que exprimen o extruyen las aletas de aluminio hacia arriba y hacia afuera del material del manguito en forma de espiral en una sola operación. Como resultado, la base de los tubos queda completamente conectada al tubo principal. Dado que estas aletas nunca se rompen, deforman o aflojan, su eficiencia de calentamiento no cambia con el tiempo.

Inserte el tubo en el tubo del manguito de aluminio-->comprimir o enrollar-->pelar tiras-->lavado--prueba de presión-->soplado-->embalaje.

Tamaño y material del tubo de aleta de aluminio extruido:

Extruded aluminum fin tube advantages:

1. 100% fin-to-tube bond providing exceptional efficiency and longevity.

2. Excellent corrosion protection on the base tube.

3. Easy to clean with a high-pressure water jet without deforming the fins.

4. As the outer sleeve is continuous No galvanic corrosion between the tube and fins.

5. The bonding of the outer and inner tubes removes the risk of loss of contact with the aluminium due to thermal stress and fins are vibration resistant.

6. Higher heat transfer performance for the life of the unit.

7. Extruded Finned tubes are commonly used in applications with temperature up to 325 °c.

The extruded finned tubes are produced by compressing an aluminum tube or sleeve, onto the base tube. The bloom is exposed to very high pressures which essentially "grows" the fins into the final fin profiles. This process manufactures an excellent strong joint with great resistance (fin stiffness) as well as exceptional heat transfer capabilities (longevity, temperature range). The advantage of extruded fin tubes are full protection of bare tube against corrosion and fin has high mechanical strength. Extruded finned tubes provide the most stable performance over time as compared to the other fin types. The fin is rolled from an outer aluminum tube by a process using pressure to create a rolled "pressure bond" between the liner tube and fins. The aluminum fin material completely encloses the tube, except at the ends where a tube coating can be applied.

Extruded aluminum fin tube application:

Primarily extruded finned tubes are used in high temperature conditions and corrosive atmospheric conditions, such as operating temperatures less than 300°C or off-shore applications; heat pipes air to air heat exchangers for HVAC applications, air dehumidification in air treatment plants, energy recovery in air exhaust system. This kind of fin design is the least economical as compared to the other fin types; main reason due to the increased amount of aluminum used around 40% also increased labors during the manufacturing. However this increased cost can be compensated if using lower grade parent tube material. Extruded aluminum fin tube widely used in Air Cooler,Air preheater,Charge Air Chiller, Condenser,Evaporator, Fluid Cooler, Gas Cooler,Oil Cooler, Radiator, Refrigeration,Steam to Air Heat Exchanger etc.

In order to forward you a promt offer for the laser welding finned tube, we would be pleased to receive you detailed enquiry including:

• Base tube material 

• Base tube size (OD x WT x Length)

• Fin material

• Fin type

• Fin diameter or height

• Fin thickness

• Fins per inch, meter or fin pitch

• Lenght of plain, unfinned ends

• Finned Tube Quantity

(Additional fabrication, such as bend or weld the tubes into tubeplate or assembly)

Extruded Fin Tube|Extruded Finned Tubes|Aluminum Finned Tubes