Method of electromagnetic stirring in continuous metal casting p

Details Method of electromagnetic stirring in continuous metal casting p Method of electromagnetic stirring in continuous metal casting p

1984-11-08

1989-08-01

Rowan, Kurt

Metal founding

Process

Shaping liquid metal against a forming surface

164504, B22D 1110

Patent

active

048526355

ABSTRACT:
A method of electromagnetically stirring molten metal in an unsolidified portion of a continuously cast strand by a magnetic field formed by applying alternating current to at least two exciting coils, the method comprising: supplying to one of the exciting coils a first alternating current of a frequency in the range of 1-60 Hz and to the other one of the exciting coils a second alternating current with a frequency difference in the range of 0.03-0.25 Hz from the first alternating current to form a varying composite magnetic field thereby to induce stirred movement of varying direction and intensity in the molten metal.

REFERENCES:
patent: 4016926 (1977-04-01), Yamada et al.
patent: 4040467 (1977-08-01), Alberny et al.
patent: 4103730 (1978-08-01), Dussart
patent: 4321958 (1982-03-01), Delassus
patent: 4419177 (1983-12-01), Pryor

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