High tenacity magnetic materials and preparation method of the same
A magnetic material and high-toughness technology, applied in the field of high-toughness magnetic materials and preparation, can solve the problems that products cannot be NdFeB materials, insufficient fracture toughness of materials, etc., achieve high production and utilization value and comprehensive social benefits, improve mechanical properties, The effect of flexible composition ratio
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Embodiment 1
[0031] Prepare the high toughness magnetic material according to the following steps:
[0032] 1) Treatment of praseodymium and neodymium waste: mix praseodymium and neodymium waste in hydrochloric acid with a mass concentration of 25%, 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.
[0033] 2) Grinding ingredients: determine the content of Nd, Pr and Sc in 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, and the adjusted precipitate rare earth oxide The weight ratio ...
Embodiment 2
[0040] Prepare the high toughness magnetic material according to the following steps:
[0041] 1) Treatment of praseodymium and neodymium waste: mix praseodymium and neodymium waste in hydrochloric acid with a mass concentration of 30%, 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.
[0042] 2) Grinding ingredients: determine the content of Nd, Pr and Sc in 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, and the adjusted precipitate rare earth oxide The weight ratio of the three components Nd:Pr:Sc in...
Embodiment 3
[0049] When preparing NdFeB alloy ingots 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 .
[0050] All the other preparation processes are the same as in Example 1.
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