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发明授权
CN105861959B 智能电表用低角差纳米晶软磁合金磁芯及其制备方法 有权

智能电表用低角差纳米晶软磁合金磁芯及其制备方法
摘要：
本发明属于软磁合金领域，具体公开了智能电表用低角差纳米晶软磁合金磁芯及其制备方法。磁芯的分子式为Fe100‑a‑b‑c‑d‑eSiaBbMcCudNbeM’f，a、b、c、d、e、f为原子百分比，取值范围分别为：8≤a≤14，2≤b≤10，0.8≤c≤3，1≤d≤4，0.5≤e≤2，0.02≤f≤0.5余量为铁和不可避免的杂质，其中M为Al或Zn，M’选自Y、Gd、V、Mo、Mn、Ge、Er、Ga、Sn中的一种或几种。本发明还提供了采用复合磁场退火处理的方法制备得到软磁性能优异的磁芯，满足智能电表用低角差互感器高精度测量的要求。
摘要（英）：

The invention belongs to the field of magnetically soft alloy and particularly discloses a low-angle-difference nanocrystalline magnetically soft alloy magnetic core for an intelligent electric meter and a preparation method thereof. The molecular formula of the magnetic core is shown as follows: Fe100-a-b-c-d-eSiaBbMcCudNbeM'f, wherein a, b, c, d, e and f are atomic percents, 8<=a<=14, 2<=b<=10, 0.8<=c<=3, 1<=d<=4, 0.5<=e<=2, 0.02<=f<=0.5, the balance is Fe and unavoidable impurities, M is Al or Zn, and M' is one or more of Y, Gd, V, Mo, Mn, Ge, Er, Ga and Sn. The magnetic core which is prepared through a resultant magnetic field annealing treatment method and is excellent in soft magnetic property is further provided, and the requirement for high-precision measurement with a low-angle-difference mutual inductor for the intelligent electric meter is met.

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