Norsk-Hydro - Flat Oval Tubes for Radiators
From Building Systems - Welded Tubes
Together with our customers we have designed, and are still developing, new tubes with enhanced characteristics to face these new challenges of cooling devices.
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Products Details
Since the very beginning, automotive engines have been cooled by air-liquid systems. This is still state-of-the-art, but nowadays new applications, such as air-liquid charge air coolers and contact battery coolers increase the thermal burden on the main system with their indirect loops.
Together with our customers we have designed, and are still developing, new tubes with enhanced characteristics to face these new challenges of cooling devices that are not located near the cooling air flow at the front of the vehicle. In addition to the traditional flat-oval tubes, in dozens of dimensions, we offer welded B-type-tubes and dimpled surfaces.
The main difference to extruded and drawn tubes is the possibility to have a multi-layer material of different aluminium alloys. The clad layer is widely used in tubes for heat exchanger production to enable furnace or flame brazing and to give sacrificial corrosion resistance.
For industrial applications, where strength and formability are important factors, 5xxx-series alloys can be utilized having the advantage of very good dimensional stability.
Automotive applications- Flat oval tubes for radiators and heaters
- Rectangular tubes for charge air coolers
- Thick-walled oil coolers
- Internal enhancements as dimples or turbulators to increase the heat transfer
- Headers/manifolds for mobile A/C condensers
- Headers/manifolds for battery coolers
- Small-diameter tubes for connector lines
- Headers/manifolds for stationary condensers
- Inner-grooved tubes with high heat transfer performance
- Return bends with clad for mechanically expanded heat exchangers
- Ladders and scaffolding
- Special tubes for child care, garden and forestry, orthopedical equipment, sports and adventure
- Desalination
- Surface treatments, e.g anodizing or painting
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