Rapid solidification of aluminium by the Hydro Aluminium process

✍ Scribed by Ole Johan Sørheim; Lars Auran

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 390 KB
• Volume: 134
• Category: Article
• ISSN: 0921-5093
• DOI: 10.1016/0921-5093(91)90936-h

✦ Synopsis

A proprietary method to produce low-cost particular rapid solidified (RS) material for subsequent precompaction and extrusion is described.

Production facilities for both granular production and precompaction/extrusion have been developed and are now available for test runs. At Hydro Aluminium R & D Centre, Sunndalsora, a pilot plant for production of RS needles with annual capacity of up to 200 tons is operable. Cooling rates averaging as high as 10 ~-4 K/s can be achieved, and recent work on alloy development offers improved properties with respect to fatigue-and mechanical-strength and rigidity at both room-and elevated temperatures.

These property profiles and corresponding total production process cost estimates for RS aluminium show promise for future exploitations both in the low-cost high-volume automotive and the nonautomotive market.