A kind of high toughness magnetic material and preparation method thereof
A magnetic material and high-toughness technology, applied in the field of high-toughness magnetic materials and preparation, can solve the problems of insufficient fracture toughness of materials, products can not be made of NdFeB materials, etc., to achieve improved mechanical properties, high production and utilization value and comprehensive social benefits, The effect of excellent magnetic properties
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Embodiment 1
[0029] Prepare the high toughness magnetic material according to the following steps:
[0030]1) Treatment of praseodymium and neodymium waste: place praseodymium and neodymium waste in hydrochloric acid with a mass concentration of 25% and mix them, the mass ratio of praseodymium and neodymium waste to hydrochloric acid is 1:2.0, then add oxalic acid to the hydrochloric acid mixture and stir evenly, the oxalic acid and hydrochloric acid mixture The weight ratio was 2.5:1. The precipitate collected after 1 hour was dried at a temperature of 120° C. for 1 hour, and then kept at a temperature of 1050° C. for 1.5 hours to obtain a precipitated rare earth oxide.
[0031] 2) Grinding ingredients: determine the content of Nd, Pr and Sc on the precipitated rare earth oxide, add praseodymium oxide powder, neodymium oxide powder and scandium oxide powder to the precipitated rare earth oxide after the measurement to adjust the composition, the adjusted rare earth oxide precipitate The w...
Embodiment 2
[0038] Prepare the high toughness magnetic material according to the following steps:
[0039] 1) Treatment of praseodymium and neodymium waste: place praseodymium and neodymium waste in hydrochloric acid with a mass concentration of 30% and mix them, the mass ratio of praseodymium and neodymium waste to hydrochloric acid is 1:2.0, then add oxalic acid to the hydrochloric acid mixture and stir evenly, the oxalic acid and hydrochloric acid mixture The weight ratio is 2.5:1. The precipitate collected after 1.5 hours was dried at 120°C for 1 hour, and then kept at 1100°C for 1 hour to obtain the precipitated rare earth oxide.
[0040] 2) Grinding ingredients: determine the content of Nd, Pr and Sc on the precipitated rare earth oxide, add praseodymium oxide powder, neodymium oxide powder and scandium oxide powder to the precipitated rare earth oxide after the measurement to adjust the composition, the adjusted rare earth oxide precipitate The weight ratio of the three components ...
Embodiment 3
[0047] When preparing the NdFeB alloy ingot in step 4), the ingredients are distributed according to the following weight percentages: Nd 33%, Pr 3.3%, B 3%, Ta 0.144%, Hf 0.128%, W 0.032%, Sc 0.033%, and the rest is Fe .
[0048] All the other preparation processes are the same as in Example 1.
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