Electromagnetic stirring device and electromagnetic stirring method for slab continuous casting secondary cooling area
A technology of electromagnetic stirring and slab continuous casting, applied in the field of electromagnetic stirring devices, can solve the problem of low intensity of stirring magnetic field, and achieve the effects of avoiding adverse effects, improving internal quality and performance, and refining grains
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[0056] For the thin slab casting speed, the electromagnetic stirring apparatus recommended caster segments attached to segment # 0 position close to the mold outlet. Cooling water spray cooling nozzle role in the secondary cooling zone, in this case the slab shell thickness of approximately 10 ~ 20mm, uncured fraction of 60% to 80%, solidification shell have sufficient strength to accommodate the slab 1 the molten steel inside and outside of the electromagnetic stirring broad side without taking too much about possible risks breakout; Further, the wick uncondensed fraction larger, sufficient amount of molten steel, columnar crystal growth beginning, fits exactly in the secondary cooling zone applying electromagnetic stirring a certain strength. Horizontal annular flow formed the alternate drive two equal sized current intensity was stirred 800A, a slab liquid core in the electromagnetic stirring apparatus main body and generates electromagnetic force in the op...
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