마그네슘합금 사용 후 스크랩의 재활용기술 = Recycling Technology of End-of-Life Magnesium Scrap

다국어 초록 (Multilingual Abstract)

Magnesium alloys are emerging materials for green cars because they have the lowest density among structural metallic materials. With the increased use of magnesium the development of more effective magnesium recycling technology for all scrap types becomes more important. This paper extensively reviews the recycling technology of end-of-life magnesium scrap. Firstly, it describes the typical refining processes for sorted clean scrap such as flux and fluxless remelting. And it describes the several processes which are feasible to separate magnesium lloys from a light metal shredder fraction containing aluminum and other light matters or to remove surface contaminants and coated layers containing organic matters such as hydrocarbon compounds or harmful metallic elements such as nickel, copper, iron, and chromium. It also introduces the existing purification techniques for a seriously contaminated magnesium melt due to the incomplete removal of impurities.Finally, it discusses the cleanliness assessment techniques of magnesium alloy.