Superloy
Superloy is a corrosion-resistant zinc alloy that is used in die casting .
The alloy is used in the hot chamber process, has very good flow behavior (according to Radone: 420 mm at 420 ° C) and allows material thicknesses down to 0.3 mm. It is resistant to water, atmospheric influences and also to neutral and weakly alkaline solutions.
Superloy was developed in the 1990s by the Belgian company Nyrstar (formerly Umicore ) and has not yet been included in the EN 1774 (for zinc alloys) and EN 12844 (for zinc die-cast parts) standards .
metallurgy
Superloy contains 6.6–7.2% aluminum and 3.2–3.8% copper . In the three-component system Zn-Cu-Al, Superloy is close to the eutectic point . Although the alloy contains two metals with a higher melting point than zinc , its solidification temperature is lower than z. B. ZL5 / ZL0410, a zamak alloy .
scope of application
The areas of application for Superloy are diverse and are of particular interest where a compromise has to be found between thin walls and high mechanical requirements.
In addition to these areas of application, Superloy is primarily used for components in the electronics industry, plug connections and small and precision parts.
Web links
Individual evidence
- ↑ a b Elvira Moeller: Handbook of construction materials . Hanser Verlag, 2006, ISBN 3-446-40170-9 , p. 482 ( limited preview in Google Book search).
- ↑ gifa.de: Superloy - A zinc die-cast alloy for the future , from February 1, 2007, accessed April 14, 2013.