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研究了混合稀土对硅钢棒材性能的影响,比较了加稀土与无稀土硅钢棒性能的差异,得出较好的热处理工艺,对有关机理进行了分析讨论。实验证明,加热温度对合金磁性影响很大。Si含量相同的硅钢,含有0.5％Re比无Re,在相同处理工艺下,磁性显著提高,900℃×10h+850℃×3h工艺下,最佳磁性为μ_m=0.013H/m、B_(10)=1.48T、P_(10/50)为7.0W/kg,H_c=35.8A/m,证明了稀土元素具有显著改善硅钢棒材磁性的作用,也使铁硅合金的硬度降低,改善机加工性能。
The effect of mixed rare earth on the properties of silicon steel bars was studied. The differences of properties between silicon steel bars with and without rare earths were compared. The better heat treatment process was obtained and the relevant mechanism was discussed and discussed. Experiments show that the heating temperature of the magnetic properties of the alloy great. The Si content of the same content of silicon steel, containing 0.5% Re Re no, in the same process, the magnetic significantly increased under the conditions of 900 ℃ × 10h + 850 ℃ × 3h, the best magnetic μ_m = 0.013H / m, B_ (10 ) = 1.48T, P_ (10/50) is 7.0W / kg and H_c = 35.8A / m, which proves that rare earth elements can significantly improve the magnetic properties of silicon steel bars, and also reduce the hardness of iron-silicon alloys and improve machining performance.