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    • 3. 发明申请
      WO01078923A1 METALLIC MINIATURIZED HOLLOW SHAPED BODIES AND METHOD FOR PRODUCING SHAPED BODIES OF THIS TYPE 审中-公开
    • METALLIC MINIATURIZED HOLLOW SHAPED BODIES AND METHOD FOR PRODUCING SHAPED BODIES OF THIS TYPE
    • 非金属微型中空状体和用于制备这种成型
    • WO01078923A1
    • 2001-10-25
    • PCT/DE2001/000761
    • 2001-02-22
    • B22F9/22 , B22F1/00 , B22F3/11 , B22F1/02
    • B22F1/0051 , B22F3/1112 , B22F3/1143 , B22F2998/10 , Y10T428/12181 , B22F3/1121 , B22F3/001
    • According to the invention, the shaped bodies are comprised of at least one heavy metal, preferably Fe, Ni, Co, Sn, Mo or W, which can be reduced from a corresponding metal compound at a temperature of less than 1,500 DEG C. The shaped bodies have an outer diameter ranging from 0.05 to 0.5 mm and a diameter to wall thickness ratio ranging from 0.5 to 3 %. According to the method, starting materials are applied as a covering layer to supporting elements of any shape, and the green products produced in such a manner are subsequently heat-treated. During the heat-treatment, the supporting elements are pyrolyzed, the covering layers are, in essence, thermally decomposed, and the decomposition products are sintered. The outer dimensions of the supporting elements are selected such that they are larger than the shaped bodies to be produced. Metallic compounds, preferably metal oxides, metal hydroxides, metal carbonates, or organometallic compounds are selected as starting materials and can be reduced at a temperature of less than 1,200 DEG C. The heat treatment is carried out in a reductive atmosphere containing hydrogen and/or carbon in such a way that the starting materials are essentially reduced to the sintered metal which provides the foundation for the respectively used metal compound.
    • 根据本发明的存在，至少一种重金属，优选铁，镍，钴，锡，Mo或W，包括成形体，它可以在温度低于1500℃，从相应的金属化合物被减少。 模制品具有0.05至0.5毫米，直径之间的外径向壁的0.5厚度比至3％。 根据作为起始原料任意形状的支撑元件和这样产生的压坯的包层被施加的方法是随后进行热处理。 该载体元件被热解，该覆层基本上热分解和烧结Zersetzungspordukte。 支撑构件的外部尺寸被选择为比成型体更大。 作为起始原料是选择的金属化合物，优选金属氧化物，金属氢氧化物，金属碳酸盐或金属有机化合物，其可还原在低于1200℃的温度下 该热处理是在还原性氢和/或含碳气氛，使得原料是基本上烧结金属可以减少，这是使用作为基础的金属化合物进行的。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 9. 发明申请
      WO98058394A1 MATERIAL FOR PERMANENT MAGNETS 审中-公开
    • MATERIAL FOR PERMANENT MAGNETS
    • 永久磁铁材料
    • WO98058394A1
    • 1998-12-23
    • PCT/RU1998/000151
    • 1998-05-25
    • H01F1/053 , B22F3/00 , C22C1/04 , H01F1/057 , B22F1/00
    • C22C1/0441 , B22F3/001 , B22F2009/041 , B22F2998/10 , H01F1/057 , H01F1/0577 , B22F9/04 , B22F3/02 , B22F3/10 , B22F3/24
    • The invention concerns materials for permanent magnets, in particular, materials based on ternary compounds such as neodymium-iron-boron, containing one stable ternary compound such type as Fe-B-R (where R - one or some rare earth metals including yttrium) with a tetragonal structure and nonmagnetic compounds. This invention can be used for manufacturing of permanent magnets for electrical engineering, electronics, instrument-making and so on. The technical result of the present invention consists in increasing in reproducibility of magnetic properties and manufacturability of obtaining a material for permanent magnets based on the Fe-B-R ternary compound. The result is achieved by means of using the amorphous oxidic derivatives of rare earth metals as nonmagnetic compounds in the material for permanent magnets based on the Fe-B-R ternary compound containing at least one stable ternary compound of the Fe-B-R type and nonmagnetic compounds in the following component amount, weight %: at least one stable Fe-B-R type ternary compound base, amorphous oxidic derivatives of rare earth metals 2.8-3.8. In this case an amount of rare earth metals in the stable Fe-B-R type ternary compound exceeds an amount of rare earth metals in the amorphous oxidic derivatives of rare earth metals by a factor of 40-90 and the interface between the amorphous oxidic derivatives of rare earth metals (phase I) and the stable Fe-B-R type compound (phase II) is 6000-12000 cm /cm . The material based on the Fe-B-R ternary compound with addition of dysprosium and cobalt, containing amorphous compounds of the oxidic derivatives of rare earth metals, aluminium and scandium, was used for manufacturing of permanent magnets having the following magnetic properties: Br = 12.5-14 kG, Hcb = 10.5-11.5 kOe, (BH)max = 35-46 MGOe. The proposed material for permanent magnets is characterized by the high reproducibility of magnetic properties (output of sound goods 60-90 %) and by the high manufacturability (technological fitness of the powder blend 48-96 hours).
    • 本发明涉及用于永磁体的材料，特别是基于三元化合物如钕 - 铁 - 硼的材料，其含有一种如Fe-BR（其中R - 一种或一些稀土金属包括钇）的稳定的三元化合物与 四方结构和非磁性化合物。 本发明可用于电气工程，电子，仪器制造等永久磁铁的制造。 本发明的技术结果在于提高基于Fe-B-R三元化合物获得永磁体材料的磁特性和制造性的再现性。 结果是通过在基于含有至少一种Fe-BR型稳定的三元化合物和非磁性化合物的Fe-BR三元化合物的永磁体材料中使用稀土金属的无定形氧化物衍生物作为非磁性化合物而实现的 以下组分量，重量％：至少一种稳定的Fe-BR型三元化合物碱，稀土金属的无定形氧化物衍生物2.8-3.8。 在这种情况下，稳定的Fe-BR型三元化合物中的稀土金属的量超过稀土金属的无定形氧化物衍生物中的稀土金属的量为40-90，并且非晶态氧化物衍生物之间的界面 稀土金属（I相）和稳定的Fe-BR型化合物（II相）为6000-12000cm 2 / cm 3。 使用含有添加镝和钴的Fe-BR三元化合物的材料，其含有稀土金属的氧化物衍生物，铝和钪的无定形化合物，用于制造具有以下磁性的永磁体：Br = 12.5- 14kG，Hcb = 10.5-11.5kOe，（BH）max = 35-46MGOe。 所提出的永磁体材料的特点是磁性能（声音产品的输出为60-90％）和高制造性（粉末混合物的技术适应性为48-96小时）的重现性高。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
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