Method and device for refining metal solidification structure through pulse coupling electromagnetic field
A technology of pulse coupling and metal solidification, which is applied in the field of pulse coupling electromagnetic field to refine metal solidification structure, can solve the problems of electrode contamination of metal mother liquid, insufficient application prospect, not suitable for industrial production, etc., and achieves simple application method, good application prospect, The effect of reducing energy consumption
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Embodiment 1
[0023] Such as figure 1 with figure 2 The shown device for refining metal solidified tissue by pulse coupled electromagnetic field includes a molten metal container 2, a pulse power supply 1, a pulse coil 4, two magnets 6 and a temperature acquisition and recording system 3, wherein the pulse coil 4 is circular, and the metal The liquid container 2 is placed at the center of the circular pulse coil 4, and the pulse coil 4 is connected with the pulse power supply 1 through a wire 5, as Figure 5 As shown, the pulse power supply 1 is composed of a charging system 11, a pulse capacitor 12 and a switch 13. The pulse capacitor 12 is connected to the pulse coil 4 outside the container 2 containing molten metal by a wire 5 through a switch 14. The pulse capacitor 12 is connected to the pulse coil 4. Discharge generates a pulsed magnetic field; two magnets 6 are symmetrically placed outside the pulse coil 4 on both sides of the molten metal container 2, so that the two magnets 6 and...
Embodiment 2
[0027] The solidified structure of the Al-7wt.%Si alloy was refined using the device and method described in Example 1.
[0028] Put pure aluminum with an industrial purity of 99.9% in a resistance furnace, heat it to 850°C, keep it at 850°C for one hour, then add a certain proportion of pure silicon with an industrial purity of 99.99% to the resistance furnace, and keep it for another hour , and then pour the alloy solution into a graphite crucible for sample preparation, and then cut the samples into 420g.
[0029] Randomly take two samples and place them in a corundum crucible, place them in a resistance furnace for melting, heat them to 850°C for one hour, divide the above two samples into sample 1 and sample 2, when the temperature of the melt When the temperature dropped to 720°C, only pulsed magnetic field was applied to sample 1, and pulse coupled electromagnetic field treatment was applied to sample 2 according to the method of Example 1, and the treatment was stopped...
Embodiment 3
[0032] The solidified structure of the Al-5wt.% Cu alloy was refined using the device and method described in Example 1.
[0033] Put pure aluminum with an industrial purity of 99.99% in a resistance furnace, heat it to 800°C, keep it at 800°C for one hour, then add a certain proportion of pure copper with an industrial purity of 99.99% to the resistance furnace, and keep it for another hour , and then pour the molten metal into a graphite crucible for sample preparation, and then cut the samples into 400g.
[0034] Randomly take two samples and place them in a corundum crucible, place them in a resistance furnace for melting, heat them to 800°C for one hour, divide the above two samples into sample 3 and sample 4, when the temperature of the melt When the temperature dropped to 750°C, only pulsed magnetic field was applied to sample 3, and pulse coupled electromagnetic field treatment was applied to sample 4 according to the method of Example 1, and the temperature dropped to...
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