Method for preparing nano composite permanent magnet material by adding zirconium into magnetic steel waste
A permanent magnetic material and nanocomposite technology, which is applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problem of the difficulty in controlling the scale and composition of two phases, the difficulty in increasing the maximum magnetic energy product of isotropic nanomaterials, and the difficulty in Precisely control the grain size and distribution of hard magnetic phase and soft magnetic phase to achieve the effect of changing grain microstructure and magnetic properties, low rare earth content, and saving time
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Embodiment 1
[0029] A kind of nanocomposite permanent magnetic material, carries out batching according to following table 1-1:
[0030] Table 1-1 Example 1 formula table
[0031] The preparation method of the above-mentioned nanocomposite permanent magnet material of the present embodiment is as follows:
[0032] The collected waste magnets are pre-classified according to the classification standard that the waste magnets with the same rare earth elements contained in the same batch and the same type are classified into one category to obtain pretreated magnet materials; and then according to the prepared nanocomposite permanent magnet materials, the obtained The pretreated magnet materials are directly subjected to hydrogen crushing to obtain rare earth hydrogen crushed magnetic powder; at the same time, the obtained rare earth hydrogen crushed magnetic powder is sampled and analyzed to obtain the parameters of the rare earth magnetic powder components, and then according to the p...
Embodiment 2
[0037] A kind of nanocomposite permanent magnet material, carry out batching according to following table 2-1:
[0038] Table 2-1 Example 2 formula table
[0039] components
zirconium
aluminum
iron
total
Weight / kg
3.8
2.5
1.68
0.21
1.1
0.1
0.02
0.04
11.9
21.35
mass percentage / %
18
12
8
1
5
0.5
0.1
0.2
55.2
100
[0040] The preparation method of the above-mentioned nanocomposite permanent magnet material of the present embodiment is as follows:
[0041]The collected waste magnets are pre-classified according to the classification standard that the waste magnets with the same rare earth elements contained in the same batch and the same type are classified into one category to obtain pretreated magnet materials; and then according to the prepared nanocomposite permanent magne...
Embodiment 3
[0045] A kind of nanocomposite permanent magnet material, carry out batching according to following table 3-1:
[0046] Table 3-1 Example 3 formula table
[0047] components
zirconium
aluminum
iron
total
Weight / kg
2.7
2.1
2.52
0.23
2.1
0.3
0.04
0.1
10.9
20.99
mass percentage / %
13
10
12
1.1
10
1.2
0.2
0.5
52
100
[0048] The preparation method of the above-mentioned nanocomposite permanent magnet material of the present embodiment is as follows:
[0049] The collected waste magnets are pre-classified according to the classification standard that the waste magnets with the same rare earth elements contained in the same batch and the same type are classified into one category to obtain pretreated magnet materials; and then according to the prepared nanocomposite permanent mag...
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