Iron-based nanocrystalline magnetically soft alloy material and preparation method thereof
A technology of iron-based nanocrystals and soft magnetic alloys, applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problems of low loss, high cost, and low saturation magnetic induction intensity, and achieve low loss, low cost, and high saturation The effect of magnetic induction
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[0052] Meanwhile, the present invention also provides a preparation method of iron-based nanocrystalline soft magnetic alloy, comprising the following steps:
[0053] (1) According to the formula (Fe a Si b B c P d Cu e ) fMgThe atomic content in the alloy raw material is prepared, a, b, c, d, e are the corresponding atomic content, f, g are the corresponding component or atomic percentage content, where 0.75≤a≤0.87, 0
[0054] (2) above-mentioned alloy raw material is placed in a smelting device and smelted to obtain an alloy ingot;
[0055] (3) crushing the alloy ingot obtained in step (2);
[0056] (4) melting the broken alloy ingot, and spraying the alloy liquid onto the rotating copper roller by the single-roll quenching method to prepare the amorphous alloy;
[0057] (5) The amorphous alloy is crystallized un...
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[0067] Example 1:
[0068] The preparation component is (Fe 0.8265 Si 0.02 B 0.09 P 0.05 Cu 0.0135 ) 99 Al 1 The nanocrystalline soft magnetic alloy, the steps are as follows:
[0069] (1) Using pure Fe, pure Si, pure B, pure Cu, pure Al and Fe-P alloys with a purity of more than 99.5% as raw materials, according to (Fe 0.8265 Si 0.02 B 0.09 P 0.05 Cu 0.0135 ) 99 Al 1 Weigh the raw materials according to the proportion and set aside;
[0070] (2) Put the weighed raw materials in step (1) into a high-frequency induction melting furnace for melting, first vacuumize to 4×10 -3 Pa, and then filled with argon gas to a pressure of 0.09 MPa for smelting, fully smelting after melting, and then kept for 10 min, and then poured into a casting mold-copper mold to obtain an alloy ingot;
[0071] (3) removing the surface impurities of the alloy ingot obtained in step (2), then ultrasonically cleaning the alloy ingot, breaking the alloy ingot into small alloy ingots, and p...
Example Embodiment
[0081] Example 2:
[0082] The preparation component is (Fe 0.8265 Si 0.02 B 0.09 P 0.05 Cu 0.0135 ) 99 Mo 1 The nanocrystalline soft magnetic alloy, the steps are as follows:
[0083] (1) Using pure Fe, pure Si, pure B, pure Cu, pure Mo and Fe-P alloys with a purity of more than 99.5% as raw materials, according to the molecular formula (Fe 0.8265 Si 0.02 B 0.09 P 0.05 Cu 0.0135 ) 99 Mo 1 Weigh the raw materials according to the proportion and set aside;
[0084] (2) Put the weighed raw materials in step (1) into a high-frequency induction melting furnace for melting, first vacuumize to 4×10 -3 Pa, and then filled with argon gas to the pressure of 0.09 MPa for melting, fully melting after melting, holding for 10 min, and then poured into the casting mold-copper mold to obtain an alloy ingot;
[0085] (3) removing the surface impurities of the alloy ingot obtained in step (2), then ultrasonically cleaning the alloy ingot, breaking the alloy ingot into small a...
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