会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明公开
    • A magnetic steel sheet having excellent magnetic characteristics and blanking performance
    • Elektroblech mit verb desserten magnetischen Eigenschaften und verbesserter Stanzbarkeit
    • EP0741191A2
    • 1996-11-06
    • EP96106835.0
    • 1996-04-30
    • SUMITOMO METAL INDUSTRIES, LTD.
    • Tomida, Toshiro, c/o Sumitomo Metal Ind., Ltd.Uenoya, Shigeo, c/o Sumitomo Metal Ind., Ltd.
    • C21D8/12H01F1/147
    • H01F1/14775C21D3/00C21D3/04C21D8/1255C21D8/1272C21D8/1283Y10T428/12458
    • The present invention provides a magnetic steel sheet containing, on a weight basis, 0.2 to 6.5% of Si and 0.03 to 2.5% of Mn, having a crystallographic texture wherein the density of aggregation of {100} planes parallel to the surface of the sheet is not less than 10 times that of non-oriented crystal grains, and having a demanganized layer in which the concentration of manganese decreases from the interior of the sheet toward the surface of the sheet, wherein the ratio between the concentration of manganese in the surface portion of the sheet and that in the mid depth portion of the sheet is not more than 0.90 and wherein the maximum ratio of reduction in the concentration of manganese within the demanganized layer is not more than 0.05 wt%/µm. Magnetic characteristics of the magnetic steel sheet are further improved by adopting the average grain diameter 0.25 to 10 times the thickness of the sheet and by applying to the sheet a tension smaller than the elastic limit of the sheet in a direction parallel to the surface of the sheet. By employing an appropriate ratio of reduction in the Mn concentration, a relatively high magnetic flux density is obtained without a sharp increase in magnetic flux density, and core loss reduces, thereby providing a non-oriented or doubly oriented magnetic steel sheet having excellent magnetic characteristics and blanking performance.
    • 本发明提供了一种电磁钢板,其以重量计含有0.2至6.5%的Si和0.03至2.5%的Mn,其具有结晶学结构,其中平行于该表面的ä100ü平面的聚集密度不是 小于非取向晶粒的10倍,并且具有其中锰浓度从片材内部朝向片材表面降低的去血清层,其中,表面部分中的锰浓度之间的比例 片材和中间深度部分中的片材不大于0.90,并且其中脱锰层内的锰浓度的最大降低比率不大于0.05wt%/μm。 电磁钢板的磁特性通过采用平均粒径为片的厚度的0.25〜10倍而进一步提高,并且通过向片材施加小于片材在与该片材的表面平行的方向上的弹性极限的张力 片。 通过采用Mn浓度的适当的降低比例,可以获得磁通密度较高的磁通密度,而磁通密度急剧增加,并且磁芯损耗降低,从而提供具有优异磁特性的非取向或双向取向的电磁钢板 和消隐性能。