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Soft magnetic steels excellent in cold forgeability, machinability and magnetic properties, and soft magnetic steel parts excellent in magnetic properties
Soft magnetic steels excellent in cold forgeability, machinability and magnetic properties, and soft magnetic steel parts excellent in magnetic properties
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机译:软磁钢的冷锻性,切削性和磁性能优异,软磁钢零件的磁性能优良
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摘要
A soft magnetic steel has, on the mass basis, a carbon content of 0.0015% to 0.02%, a manganese content of 0.15% to 0.5%, and a sulfur content of 0.015% to 0.1%, has a ratio Mn/S of 5.7 or more, and contains a single-phase ferrite microstructure as its metallographic structure, in which the density of precipitated FeS grains having a major axis of 0.1 μm or more is 5000 grains/mm2 or less. This steel ensures excellent magnetic properties with less variation after magnetic annealing, exhibits excellent machinability and cold forgeability during production processes, and can thereby yield a steel part even having a complicated shape and a large size in a high yield.
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机译:以质量为基准,软磁钢的碳含量为0.0015%至0.02%,锰含量为0.15%至0.5%,硫含量为0.015%至0.1%,Mn / S比为5.7。以上为单相铁素体组织作为金相组织,长轴为0.1μm以上的析出FeS晶粒的密度为5000个/ mm 2 Sup>以下。这种钢确保了优异的磁性能,经过磁退火后变化不大,在生产过程中表现出出色的可加工性和冷锻性,从而可以高产量地生产形状复杂,尺寸大的钢部件。
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