Casting method for aluminium alloys

Details Casting method for aluminium alloys Casting method for aluminium alloys

B - Operations, Transporting

22

D

B22D 11/10 (2006.01) B22D 11/117 (2006.01) B22D 21/00 (2006.01)

Patent

CA 2753089

The invention relates to a method for casting aluminium alloys containing at least around 0.1% of Mg and/or at least around 0.1% of Li, wherein said method comprises, during the main portion of the curing, contacting a liquid surface of said alloy with dried gas containing at least around 2% by volume of oxygen and having a partial water pressure lower than around 150 Pa. The invention can particularly be used for safely casting the most oxidizable aluminium alloys, in particular aluminium alloys containing magnesium and/or lithium, without using additives such as beryllium and/or calcium and without using expensive devices and/or gases while obtaining cast ingots free of surface defects and pollutants.

L'invention concerne un procédé de coulée d'un alliage d'aluminium contenant au moins environ 0,1% de Mg et/ou au moins environ 0,1% de Li dans lequel on met en contact pendant l'essentiel de la solidification une surface liquide dudit alliage avec un gaz asséché comprenant au moins environ 2 % en volume d'oxygène et dont la pression partielle en eau est inférieure à environ 150 Pa. L'invention permet notamment la coulée des alliages d'aluminium les plus oxydables, en particulier les alliages d'aluminium contenant du magnésium et/ou du lithium, sans utiliser d'additifs tels que le béryllium et/ou le calcium et sans utiliser de dispositif et/ou gaz coûteux tout en obtenant des lingots coulés exempts de défauts de surface et de pollutions, en toute sécurité.

Affiliated with

Also associated with

Rating

Casting method for aluminium alloys does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Casting method for aluminium alloys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Casting method for aluminium alloys will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1936497