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A process for the preparation of a raw alloy by means of strip casting for permanent magnets of the nanocomposite
A process for the preparation of a raw alloy by means of strip casting for permanent magnets of the nanocomposite
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机译:通过带铸法制备纳米复合材料永磁体的原料合金的方法
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摘要
A process for efficiently producing at low cost a raw alloy for nanocomposite magnets which is mainly amorphous. The process comprises preparing a molten alloy represented by Fe¿100-x-y-z?RxQyMz (wherein R is at least one of praseodymium, neodymium, dysprosium, and terbium; Q is at least one of boron and carbon; M is at least one of cobalt, aluminum, silicon, titanium, vanadium, chromium, manganese, nickel, copper, gallium, zirconium, niobium, molybdenum, silver, platinum, gold, and lead; 1 ≤ x 6 at.%; 15 ≤ y ≤ 30 at.%; and 0 ≤ z ≤ 7 at.%) and feeding this molten alloy to a cooling roll rotating at a peripheral speed of 3 to 20 m/sec, excluding 20 m/sec, so that the feed rate per unit contact width is in the range of 0.2 to 5.2 kg/min/cm to thereby rapidly cool the alloy by strip casting. Thus, an alloy at least 60 vol.% of which is amorphous can be produced.
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机译:一种以低成本有效地生产主要为非晶态的纳米复合磁体原料合金的方法。该方法包括制备由Fe 3+(x-yz·RxQyMz)(其中R为ody,钕,和ter中的至少一种; Q为硼和碳中的至少一种; M为钴中的至少一种)表示的熔融合金。 ,铝,硅,钛,钒,铬,锰,镍,铜,镓,锆,铌,钼,银,铂,金和铅; 1≤x <6 at。%; 15≤y≤30 at。 %; 0≤z≤7 at。%)并将该熔融合金送入以3至20 m / sec(不包括20 m / sec)的圆周速度旋转的冷却辊中,从而使每单位接触宽度的进给速度为在0.2至5.2kg / min / cm 2的范围内,从而通过带铸快速冷却合金。因此,可以生产其中至少60体积%是非晶态的合金。
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