Research progress in magnesium melt purification technology
As an emerging lightweight material in the automotive,3C and aerospace applications,magnesium is gradually popularised,along with the industry's energy saving and emission reduction requirements to enhance and materials industry iterative update,magnesium and its alloys involved in the industry will be further expanded.And before magnesium and its alloys in casting and deformation processing,the magnesium melt purity will have a huge impact on its performance,such as melt purity that will significantly reduce the tensile strength of the alloy,elongation and other mechanical properties,resulting in alloy cracking,breakage phenomenon.For this reason,the magnesium melt purification technology has become a research hot spot.Magnesium melt purification,as an important part of the magnesium melting process,has been the the research topic that the research workers continue to improve and optimise.In this paper,on the basis of a brief introduction to the source of inclusions in the magnesium melt,flux purification method,flux free purification method and composite purification method which are suitable for the purification of magnesium melt,and their purification effects were summarised,and the related researches on the purification of magnesium melt by vacuum distillation method were discussed,and a systematic overview of the progress of research on the purification technology of magnesium melt was made,and the future directions of the research of this technology were looked ahead to.
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