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本文研究了其含量分别增加到0.65和0.02％(重量百分数)的Mn和S对无取向低碳钢磁性和织构的影响。结果表明,硫含量一定时15千高斯下的铁损随着锰浓度的减小而线性下降,估计其下降速度约为2.4瓦/磅/1％锰(重量百分比)。这种性能的降低与晶粒增大、涡流减小及织构的变化相关。与此类似,15、17和18千高斯下的导磁率通常表现为锰含量的函数。这可用织构及显微结构来解释。此外,应当注意在锰浓度一定时上述磁性往往由于硫含量从0.020％降到0.050％而得到改善。这些性能的改善也可以从织构、显微结构和夹杂含量等方面来讨论。上述发现表明无取向钢能通过含锰量较高和含硫量较低来获到优良的磁性。
In this paper, the effects of Mn and S contents increased to 0.65 and 0.02% (wt%) on the magnetic and texture of non-oriented mild steel were studied. The results show that for a given sulfur content, the iron loss decreases linearly with the decrease of manganese concentration at 15 kG, and the rate of decline is estimated to be about 2.4 W / lb / 1% manganese (weight percent). This reduction in performance is related to grain growth, eddy current reduction, and texture changes. Similarly, the permeability at 15, 17, and 18 kilo-gauss typically appears as a function of manganese content. This can be explained by texture and microstructure. In addition, it should be noted that the above magnetism tends to be improved at a constant manganese concentration because the sulfur content is reduced from 0.020% to 0.050%. These performance improvements can also be discussed in terms of texture, microstructure and inclusion content. The above findings indicate that non-oriented steels achieve superior magnetism through higher manganese content and lower sulfur content.