|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||The Science of Melt Refining: An LMD Symposium in Honor of Christian Simensen and Thorvald Abel Engh
||The Use of Nitrogen to Degas Molten Aluminium - Comparison of Metallurgical Results with Argon and Nitrogen Used in an ACD™
||Florent Gougerot, Bruno Maltais, Etienne Tremblay
|On-Site Speaker (Planned)
The use of argon to degas liquid aluminium is a widespread practice in aluminium casthouses, and the removal of the hydrogen contained in the metal by using this noble gas is a proven method with no downside effect on the metallurgical quality of the resulting metal. However, because of the sometimes high cost of argon, some producers are looking for a cheaper gas. Nitrogen often comes as an alternative, but there are many who are questioning the degassing efficiency of this gas or the risk of metal contamination by nitrides. STAS Inc. has carried out a series of comparative tests, successively using argon and nitrogen in an ACD for degassing liquid aluminium. This paper presents the results obtained during this test campaign carried out in an industrial environment.
||Planned: Light Metals