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裴英豪,王东戈,夏雪兰. 冷轧方式与退火温度对无取向硅钢组织、织构及磁性能的影响[J]. 安徽工业大学学报(自然科学版),2024,41(4):1-9. doi: 10.12415/j.issn.1671-7872.24081
引用本文: 裴英豪,王东戈,夏雪兰. 冷轧方式与退火温度对无取向硅钢组织、织构及磁性能的影响[J]. 安徽工业大学学报(自然科学版),2024,41(4):1-9. doi: 10.12415/j.issn.1671-7872.24081
PEI Yinghao, WANG Dongge, XIA Xuelan. Effect of Cold Rolling Method and Annealing Temperature on Microstructure, Texture and Magnetic Properties of Non-oriented Silicon Steel[J]. Journal of Anhui University of Technology(Natural Science). DOI: 10.12415/j.issn.1671-7872.24081
Citation: PEI Yinghao, WANG Dongge, XIA Xuelan. Effect of Cold Rolling Method and Annealing Temperature on Microstructure, Texture and Magnetic Properties of Non-oriented Silicon Steel[J]. Journal of Anhui University of Technology(Natural Science). DOI: 10.12415/j.issn.1671-7872.24081

冷轧方式与退火温度对无取向硅钢组织、织构及磁性能的影响

Effect of Cold Rolling Method and Annealing Temperature on Microstructure, Texture and Magnetic Properties of Non-oriented Silicon Steel

  • 摘要: 以连续式和可逆式冷轧无取向硅钢为研究对象,对其进行退火实验,采用金相显微镜、X射线衍射仪(XRD)表征分析不同冷轧方式无取向硅钢在不同退火温度(920~1 070 ℃)下的组织和织构,探讨轧制方式与退火温度对无取向硅钢磁性能的影响。结果表明:在920~1 070 ℃退火后,连续式冷轧样品平均晶粒尺寸分布在20.7~134.4 μm范围,可逆式冷轧样品平均晶粒尺寸分布在17.3~155.5 μm范围,随退火温度的提升,2种冷轧方式退火板晶粒总体上均在不断长大;冷轧板织构主要由强的旋转立方织构组成,可逆式和连续式冷轧样品退火板织构以γ纤维和α纤维织构为主,γ纤维织构主要聚集在111<112>处,α纤维织构主要聚集在111<110>处,γ纤维织构强度随退火温度升高而显著降低,α纤维、Goss和旋转立方织构强度变化很小;可逆式与连续式冷轧板111<110>织构强度相近,可逆式冷轧退火板111<112>织构强度始终高于连续式冷轧退火板。1 040 ℃退火时,可逆式和连续式冷轧退火板的P1.5/50(50 Hz下,磁感应强度为1.5 T时的损耗)均达最低,分别为2.512,2.445 W/kg;1 070 ℃退火时,可逆式与连续式冷轧退火板的P1.5/50有所增长,最终分别为2.625,2.494 W/kg。随退火温度升高,2种冷轧方式退火板的P1.5/50均先降后升,且连续式冷轧退火板的P1.5/50始终更低、B50更高(磁场强度为5 000 A/m时的磁感应强度)。

     

    Abstract: Taking continuous and reversible cold-rolled non oriented silicon steel as the research object, annealing experiments were conducted on it. A metallographic microscope and X ray diffraction diffractometer (XRD) were used to characterize and analyze the microstructure and texture of two cold-rolled non-oriented silicon steels at different annealing temperatures (920–1 070 ℃), and the influence of rolling method and annealing temperature on the magnetic properties of non-oriented silicon steel was explored.The results show that after annealing at 920–The magnetic induction intensity at a magnetic field intensity of 5000 A/m)1 070 ℃, the average grain size of continuous cold-rolled sample is in the range of 20.7–134.4 μm, and the average grain size of reversible cold-rolled sample is in the range of 17.3–155.5 μm. On the whole, as the annealing temperature increases, the grain size of the annealed plate under both cold rolling methods continues to grow. The cold-rolled original texture is mainly composed of strong rotating cubic texture, while the annealing plate texture of reversible and continuous cold-rolled samples are mainly composed of γ fiber and α fiber textures, and γ fiber texture mainly gathers at 111<112>, α fiber texture mainly gathers at 111<110>. The texture strength of γ fiber decreases significantly with the increase of annealing temperature, and the strength changes of α fiber and Goss and rotating cubic textures are very small.The texture strength of the reversible cold-rolled plate 111<110> is similar to that of the continuous cold-rolled plate. The texture strength of the reversible cold-rolled annealed plate 111<112> is always higher than that of the continuous cold-rolled annealed plate. When annealing at 1 040 ℃, the P1.5/50 (loss at a magnetic induction intensity of 1.5 T at 50 Hz) of reversible and continuous cold-rolled annealed plates reaches the lowest value of 2.512, 2.445 W/kg, respectively. When annealing at 1 070 ℃, the P1.5/50 of reversible and continuous cold-rolled annealed plates increases, and the final values are 2.625 and 2.494 W/kg, respectively.With the increase of annealing temperature, the P1.5/50 of two rolling modes decreases first and then increases, and with the increase of annealing temperature, the P1.5/50 of continuous cold-rolled annealed plate is always lower, and the B50 (the magnetic induction intensity at a magnetic field intensity of 5 000 A/m) is higher.

     

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