Neodymium iron boron permanent magnetic material using zirconium to substitute niobium
A permanent magnet material, neodymium iron boron technology, applied in the direction of magnetic materials, magnetic objects, electrical components, etc., to achieve the effect of reducing the cost of raw materials
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Example Embodiment
[0007] Embodiment one:
[0008] Ingredients: according to the following composition ratio weight ingredients, praseodymium neodymium alloy 30.2% by weight, gadolinium 2.0% by weight, boron element 1.03% by weight, aluminum 0.64% by weight, zirconium 0.3% by weight, copper 0.02% by weight, the balance is iron and other impurities , wherein in the praseodymium neodymium alloy, praseodymium accounts for 25% by weight, neodymium accounts for 75% by weight, boron element is added in the state of BFe alloy, the boron content is 19%, and the iron content is 81%; Gadolinium element is added in the state of GdFe alloy, and the content of gadolinium is 75%, iron content is 25%;
[0009] Take smelting 100 kg NdFeB alloy as an example:
[0010]
[0011] The metal raw materials described in the above table are loaded into the vacuum induction furnace.
[0012] Melting and casting: After loading into the vacuum induction furnace, evacuate the air in the vacuum induction furnace to less...
Example Embodiment
[0027] Embodiment two:
[0028] Ingredients: according to the following weight ratio ingredients, praseodymium neodymium alloy 31% by weight, gadolinium 2.5% by weight, boron 1.02% by weight, aluminum 0.64% by weight, zirconium 0.1% by weight, copper 0.02% by weight, and the balance is iron and other impurities , wherein in the praseodymium-neodymium alloy, praseodymium is 25% by weight, and neodymium is 75% by weight; boron element is added in the state of BFe alloy, and the boron content is 19%, and the iron content is 81%; gadolinium element is added in the state of GdFe alloy, and the content of gadolinium is 75%, iron content is 25%;
[0029] Take smelting 100 kg NdFeB alloy as an example:
[0030]
[0031] Put the metal raw materials described in the above table into the vacuum induction furnace;
[0032] Melting and casting: After loading into the vacuum induction furnace, evacuate the air in the vacuum induction furnace to less than 1Pa, start heating and melting,...
Example Embodiment
[0047] Embodiment three:
[0048] Ingredients: according to the following composition ratio weight ingredients, praseodymium neodymium alloy 30.5% by weight, gadolinium 2% by weight, boron element 1.02% by weight, aluminum 0.64% by weight, zirconium 0.5% by weight, copper 0.02% by weight, the balance is iron and other impurities , wherein in the praseodymium neodymium alloy, praseodymium is 25% by weight, neodymium is 75% by weight, boron element is added in BFe alloy state, boron content is 19%, iron content is 81%; Gadolinium element is added in GdFe alloy state, gadolinium content is 75% with 25% iron content;
[0049] Take the smelting of 100 kg NdFeB alloy as an example:
[0050]
[0051] Put the metal raw materials described in the above table into the vacuum induction furnace;
[0052] Melting and casting: After loading into the vacuum induction furnace, evacuate the air in the vacuum induction furnace to less than 1Pa, start heating and melting, when the ingredien...
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