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利用显微镜、磁性测量仪等手段研究了退火温度对含铜的6.5%Si电工钢显微组织与磁性能的影响。结果表明,Cu元素能够细化电工钢的组织和尺寸,提高其在高温退火过程中的组织稳定性。Cu元素会一定程度升高电工钢的铁损。对Fe-6.5wt%Si-1.0wt%Cu合金,随着退火温度的升高,电工钢的总铁损先减少后增多,材料的晶粒尺寸为临界尺寸时磁性能最优,而临界尺寸受Cu含量的影响。
The effects of annealing temperature on the microstructure and magnetic properties of 6.5% Si electrical steel containing copper were studied by means of microscope and magnetic measuring instrument. The results show that the Cu element can refine the structure and size of the electrical steel and improve its microstructure stability during high temperature annealing. Cu element will increase the iron loss of electrical steel to some extent. For Fe-6.5wt% Si-1.0wt% Cu alloy, as the annealing temperature increases, the total iron loss of electrical steel decreases first and then increases, and the grain size of the material is the best when the grain size is critical, while the critical dimension Affected by the Cu content.