K. Deng
,
Z.M. Ren
,
Y.B. Zhong
,
G.C. Jiang and S.M.Hu 1) School of Materials
,
Shanghai University
,
Shanghai 200072
,
China 2) Shanghai BAOSTEEL Group
,
Shanghai 200941
,
China
金属学报(英文版)
In this paper, coupling the quasi-3D numerical simulation of electromagnetic field and the experiments of continuous casting with soft-contacted mould with some metals such as tin, aluminum, copper and steel, the electromagnetic characteristics of continuous casting with soft-contacted mould is analyzed. It is shown that the electromagnetic pressure on the surface of billet is increasing with the rising of power frequency as a logarithmically parabolic function, with that of electric conductivity of billet as a power junction, and with that of the current in inductor as a parabolic junction.
关键词:
continuous casting (CC)
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null
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null
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null
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null
B.W. Zhang
,
Z.M. Ren
,
Y.B. Zhong
金属学报(英文版)
The electromagnetic field under applied AC and DC current in round and rectangularpipe was systematically investigated, then a concept of "equivalent current density"was proposed for evaluating the inhomogeneous electromagnetic pinch force, and themono-component removal efficiency and the overall removal efficiency of inclusionwere formulated. It is founded that flat pipe is superior to round pipe for the electro-magnetic removal of inclusion, and DC current can get a higher removal efficiencythan AC current due to absence of skin phenomenon. Under usual condition, a re-moval efficiency of 52% for 10μm inclusion or more than 92% for 20μm inclusioncan be achieved by imposing a current density of 3× 106A/m2 in a fiat pipe.
关键词:
inclusion
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null
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null
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