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Date of Publication:2022-10-06

Journal:功能材料

Affiliation of Author(s):材料科学与工程学院

Volume:43

Issue:2

Page Number:166-169

ISSN No.:1001-9731

Abstract:The macrostructure,microstructure and distribution of Pb element of
   horizontal continuously cast billets of lead brass were
   investigated,which was solidified under the actions of no
   electromagnetic field and with electromagnetic field,separately,and
   theoretically interpreted.Experimental results show that the structure
   of lead brass is refined effectively and distribution of Pb element is
   affected with the application of electromagnetic field during horizontal
   continuous casting,what,s more,the phenomenon that the uneven
   distribution of structure over the cross-section of the traditional
   horizontal continuous casting is suppressed,that is,the solidification
   structure of the top mainly being small columnar crystal,the bottom
   being coarse columnar grains changes to all of fine equiaxial ones.When
   the electromagnetic field is added,the solidification lag of ingot,s
   upper is eliminated;the macro-segregation of Pb element is
   suppressed,and the solidification structure of 30Hz,100A is better than
   that of 30Hz,80A.

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