An electromagnetic treatment device and working method for semi-continuous casting liquid cavity melt

Abstract

The invention discloses a semicontinuous casting liquid cave melt electromagnetic treatment device and a working method thereof. The electromagnetic treatment device comprises a silicon controllable controller, a silicon controllable assembly, an electrolytic capacitor set, an IGBT controller, an IGBT assembly, a hall sensor, a load coil, a PLC core component and a touch screen master element. The load coil is arranged in a cooling water cavity of a crystallizer which comprises an inner sleeve provided with a lubricating oil channel, a water tank partition plate, an exhaust hole, an upper coil positioning clamping piece, a lower coil positioning clamping piece, a load coil, a water sealing plate and a water outlet. According to the semicontinuous casting liquid cave melt electromagnetic treatment device and the working method thereof, by adjusting the load coil parameters such as the frequency, the duty ratio and the average current intensity, electric current with different waveform characteristics can be obtained from the load coil, and therefore corresponding induced electromagnetic fields are obtained, and forced convection of corresponding forms is formed in liquid cave melt. By adoption of the semicontinuous casting liquid cave melt electromagnetic treatment device and the working method thereof, the problem that a light alloy semicontinuous casting blank cannot completely meet the requirements of a plastic deformation process for the grain size and component uniformity of the casting blank is solved.

Description

technical field [0001] The invention belongs to the field of metal material preparation, in particular to a semi-continuous casting method for realizing low-frequency electromagnetic oscillation or low-frequency electromagnetic forced pulsating flow of a semi-continuous casting liquid cavity melt. Background technique [0002] At present, except for a few highly active magnesium alloys (such as magnesium-lithium alloys) and magnesium alloys with high casting crack tendency (such as high rare earth alloyed magnesium alloys), magnesium alloys and aluminum alloys for deformation (including rolling, extrusion and forging) Billets are mostly prepared and produced by direct water-cooled semi-continuous casting process (ie DC casting). Although the DC casting process has obvious quality and efficiency advantages over permanent mold casting, due to its heat dissipation direction and cooling and solidification characteristics, metal billet casting including magnesium alloys and alumi...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems existing in the prior art, the present invention is to design a semi-continuous casting liquid cavity melt electromagnetic treatment device and a device that is simple in structure, small in size, easy to realize industrial application, and does not need to apply a large current to the load coil. Its working method is to solve the problem that the light alloy semi-continuous casting billet cannot fully meet the requirements of the plastic deformation process (especially the forging process and rolling process) on the grain size and composition uniformity of the casting billet

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