PENETRATION OF MAGNETIC FIELD IN TWO-STAGE SLITLESS MOLD FOR SOFT-CONTACT ELECTROMAGNETIC CONTINUOUS CASTING
Bai-Gang JIN
东北大学材料电磁过程教育部重点实验室
Cite this article:
Bai-Gang JIN. PENETRATION OF MAGNETIC FIELD IN TWO-STAGE SLITLESS MOLD FOR SOFT-CONTACT ELECTROMAGNETIC CONTINUOUS CASTING. Acta Metall Sin, 2008, 44(7): 883-886 .
Abstract In order to know the penetration of magnetic field in two-stage slitless mold for soft-contact electromagnetic continuous casting, the magnetic flux density and the height of meniscus in two-stage mold and conventional mold were compared through experimental measurement. The results show that (1) the stainless steel cover can prevent the magnetic lines of flux going into mold from the top of mold. It is beneficial to the measurement of magnetic penetration with a cover on the mold. (2) The magnetic flux density increases with the thickness of mold decreasing when frequency is 25000 Hz. The magnetic flux density in two-stage mold is less than that in conventional mold when d=10 mm, but the magnetic flux density in two-stage mold is more than that in conventional mold when d=7 mm, and the penetration of magnetic field in two-stage mold is 4.5 times than that in conventional mold when d=5 mm. (3) The penetration of magnetic field and meniscus in two-stage slitless mold becomes high enough by changing the structural and electromagnetic parameters.
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