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SOFT MAGNETIC STEEL MATERIAL HAVING EXCELLENT MAGNETIC PROPERTY, STABILITY THEREOF AND COLD FORGEABILITY, SOFT MAGNETIC STEEL COMPONENT HAVING EXCELLENT MAGNETIC PROPERTY AND STABILITY THEREOF AND THEIR PRODUCTION METHOD
SOFT MAGNETIC STEEL MATERIAL HAVING EXCELLENT MAGNETIC PROPERTY, STABILITY THEREOF AND COLD FORGEABILITY, SOFT MAGNETIC STEEL COMPONENT HAVING EXCELLENT MAGNETIC PROPERTY AND STABILITY THEREOF AND THEIR PRODUCTION METHOD
PROBLEM TO BE SOLVED: To provide a soft magnetic steel material which can secure stable and excellent magnetic properties after magnetic annealing, and can be worked with high dimensional precision by cold forging.;SOLUTION: The soft magnetic steel material has a composition containing prescribed components, and the balance Fe with inevitable impurities, and satisfying 0.8([B]/[N])5.0, wherein [B] denotes a B content(mass%) in the steel and [N] denotes an N content(mass%) in the steel, and has a metallic structure composed of a ferrite single phase structure, and BN having the average grain diameter (the average value of the short diameter and the long diameter) satisfying 0.1 to 2 μm is precipitated by 120 to 500 pieces/mm2 in the crystal grains of the ferrite structure.;COPYRIGHT: (C)2007,JPO&INPIT
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机译：要解决的问题：提供一种软磁性钢材料，该材料可确保磁性退火后的稳定和优异的磁性能，并且可以通过冷锻以高精度进行加工;解决方案：该软磁性钢材料具有包含规定成分的成分，余量为Fe，具有不可避免的杂质，并且满足0.8 <（[B] / [N]）<5.0，其中[B]表示钢中的B含量（质量％），[N]表示N含量（质量）在钢中具有由铁素体单相结构组成的金属结构，并且在120°下析出平均粒径（短径和长径的平均值）满足0.1至2μm的BN。到铁素体组织的晶粒中达到500个/ mm 2 。;版权所有：（C）2007，JPO＆INPIT
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