Development of Semi-continuous Casting Technology under External Physical Field
As a main preparation method for non-ferrous light alloy billets at present,semi-continuous casting technol-ogy determines the quality and size of billets,which has a significant effect on subsequent processing and end-use per-formance.However,there exist problems in the billets prepared by traditional semi-continuous casting technology,such as coarse and uneven microstructure,high cracking tendency,and severe segregation.Application of external physical field is a highly effective method to improve the quality of billets.The development of semi-continuous casting technology under external physical fields was reviewed,and the mechanism,development history,research progress and existing problems of various physical field treatment techniques controlling the quality of melt and billet were sys-tematically discussed.Finally,the future development of the technology was prospected.
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