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利用OM、EBSD等手段研究了热轧板两段式正火时在700℃保温不同时间(0、10、30、60 min)对含Sb冷轧无取向电工钢磁性能的影响。结果表明,700℃保温10 min处理的样品铁损最小,磁感最高。对成品板的组织分析结果表明,试样的晶粒尺寸随700℃保温时间的延长先增大后减小,保温10 min时晶粒尺寸达到最大;分析成品试样织构发现,有利织构组分随700℃保温时间的延长先增加后减少,保温10 min时有利织构组分所占百分比最高。因此,含Sb冷轧无取向电工钢两段式正火时在700℃保温10 min时磁性能最好。 Effect of two-stage normalization on magnetic property of non-oriented electrical steel containing antimony was investigated by using optical microscope(OM) and electron back-scattered diffraction technology(EBSD).The experimental results show that the iron loss and magnetic permeability of the specimen insulated at 700 ℃ for 10 min are lowest and highest respectively.The grain size of the finish specimens increases first and then decreases with the increase of holding time.Similarly,the advanta... 
2013-11-28 117 5.8

采用自主研发的脉冲磁场退火装置,在取向硅钢脱碳退火过程中分别施加不同强度的磁场,并采用光学显微镜和X射线衍射仪研究了脉冲磁场脱碳退火后试样的显微组织和宏观织构。结果表明,脱碳退火过程中施加脉冲磁场后取向硅钢的平均晶粒尺寸均增加,当磁场强度为40 mT时,平均晶粒尺寸最大,为13.06μm。此外,取向硅钢试样的立方织构{001}<100>强度减弱,高斯织构{110}<001>和{111}<112>织构增强,有利于获得更好的成品织构和磁性能。 Self-developed pulsed magnetic field annealing device was used to apply magnetic field of different intensities during decarburization annealing of an oriented silicon steel, and microstructure and macro-texture of the specimens after decarburization annealing in a pulsed magnetic field were studied by using optical microscope and X-ray diffractometer. The results show that the average grain size of the oriented silicon steel increases with the application of pulsed magnetic field during decarbu... 
2022-02-28 121 5.8

本实用新型公开了一种硅钢片生产用冲压模具,包括承重板,所述承重板的上表面分别设置有缓冲机构和安装架,缓冲机构包括固定连接在承重板上表面的缓冲座,缓冲座的上表面开设有升降腔,升降腔的内部竖向滑动连接有冲压母模,冲压母模上边沿的下表面固定连接有缓冲弹簧,缓冲弹簧的底端与升降腔的内底壁固定连接,冲压母模的内底壁设置有气压顶出机构。该硅钢片生产用冲压模具,在合模过程中,冲压母模能够在缓冲弹簧的作用下沿升降腔缓慢下降,对合模的冲击力进行缓冲,从而达到对整体结构进行保护的目的,在冲压母模停止下降后,合模操作完成,随后液压杆带动冲压公模上升,冲压母模在缓冲弹簧的弹力作用下复位,便于下次冲压加工操作的进行。
2021-10-15 95 6.8

硅钢高温退火环形炉炉壳制作与安装精度要求较高,施工时通过对壳体原材料矫正、炉壳板拼焊、下料切割、型钢骨架组装及焊接、骨架及炉壳板矫正、骨架与炉壳板组装及焊接、炉壳矫正、零配件装置、定位钻孔、报验检查、出厂、内侧板安装、外侧板安装、顶板安装等环节的工艺技术控制,能保质高效地完成硅钢高温退火环形炉炉壳制作与安装,为以后同类工程的施工提供可借鉴经验。 The required precision of manufacture and installation technique of the silicon steel high temperature annealing annular-furnace shell is high.During construction , manufacture and installation of the silicon steel high temperature annealing annular-furnace shell could be finished high efficiently through correcting the raw materials of shell , furnace shell plate welding , material cutting , steel frame assembly and welding , skeleton and shell plate correction , skeleton and furnace shell asse... 
2013-05-28 70 5.8

利用光学显微镜(OM)和扫描电镜(SEM)研究了不同稀土Ce含量的50W470无取向硅钢的铸坯、热轧板和冷轧退火板的宏观和微观组织,并采用磁性能测试仪测定其磁性能。结果表明:当稀土Ce的加入量从0增加到66×10-6(质量分数)时,铸坯的柱状晶平均宽度从3.82 mm减小到3.24 mm,等轴晶率从43.1%增加到51.3%;热轧板的平均晶粒尺寸逐渐增加,从26.2μm增加到33.3μm,再结晶百分数从24%增加到37%;退火板的平均晶粒尺寸从36.2μm增加到39.3μm;磁性能测试表明,微观组织的变化有利于50W470无取向硅钢铁损降低和磁感提高。 Macro-structure and microstructure of as-cast plate, hot rolled plate and cold rolled annealed plate of 50 W470 non-oriented silicon steel with different rare earth Ce content was studied by optical microscope(OM) and scanning electron microscopy(SEM), and their magnetic properties were measured by magnetic property tester. The results show that when the addition amount of rare earth Ce increases from 0 to 66×10-6(mass fraction), the average width of columnar crystal of the as-cast pl... 
2022-03-28 127 5.8

一种硅钢变压器绕线模具,包括模具本体、顶梁、举升梁、螺杆、绕盘,其特征在于顶梁设置在模具本体的顶部,举升梁设置在模具本体的下端,模具本体的顶端设有螺丝杆,顶梁穿过螺丝杆通过活动螺母固定,模具本体的中部设有镂空,螺杆转动设置在镂空中,螺杆穿过模具本体下端与绕盘连接,模具本体的中部设有至少两个连接梁,举升梁在连接梁中穿过移动,并且中部穿过螺杆,模具本体的底部设有槽体,模具本体的中部连接梁与槽体底部链接,举升梁移动到最低点时设置在槽体内,本方案通过螺杆和绕盘以及举升梁的相互作用将线圈通过机械能作用顶出模具,省去了人为的力量。
2021-04-16 86 6.8

本实用新型公开了一种基于取向电工钢用收卷组件及其固定结构,包括主体,所述主体的后侧中部固定安装有固定杆,所述固定杆的侧面活动安装有活动机构,所述活动机构包括活动块,活动区,弹簧,主动块,连接孔,连接杆,齿轮,卷筒,挡板。该种基于取向电工钢用收卷组件及其固定结构,活动块会带动活动区内部的主动块在其内部移动,可以通过连接杆带动齿轮进行转动,因齿轮侧面啮合连接有齿口,从而会顺着主体的侧面进行移动,当齿轮移动到主体的一角时,会带动活动区内部的弹簧收缩,弹簧可根据齿轮到主体中心的距离长短进行伸缩,物料会通过卷筒落到卷块的表面,从而可以对物料进行收卷,最后达到了便于收卷,降低物体损害的目的。
2021-05-31 94 6.8

本发明涉及一种提高热连轧无取向硅钢厚度精度的方法,包括以下步骤:1)降低粗轧终轧温度和精轧入口温度,减少精轧轧制过程中奥氏体向铁素体相变的体积数,提高轧制力模型预估的精度;2)降低精轧机活套张力,减少因张力带来的厚度扰动。本发明通过降低粗轧终轧温度、精轧开轧温度和调整精轧机张力,可以有效提高精轧机轧制力预估精度,提高厚度精度以及宽度精度。
2021-12-24 122 6.8

实验室模拟薄板坯连铸连轧(TSCR)流程制造高磁感取向硅钢,借助电子背散射衍射(EBSD)技术对不同Sn含量的热轧板织构进行了研究。研究结果表明:不同Sn含量热轧板表层及次表层均为高斯织构、铜型织构及黄铜织构的混合织构,中心层为{100}面织构;Sn含量为0.1%时,热轧板表层及次表层高斯织构组分最多,取向密度最大,成品磁感最高,达到1.875 T。 Texture of grain oriented silicon steel hot rolled by thin slab casting and rolling process(TSCR) in laboratory with different Sn contents was analyzed by electron back-scattered diffraction(EBSD).The results show that the hot rolled slabs with different Sn contents have the same texture,i.e.,Goss,Copper and Brass.Specifically,the texture of core layer is {100};While the hot rolled slab with 0.10% Sn,the surface layer and subsurface layer have a sharpness Goss texture and the finished products h... 
2013-11-28 92 5.8

本实用新型公开了一种硅钢片绝缘测试装置,包括检测箱体、固定调节装置、探测装置和绝缘探测仪,所述固定调节装置、探测装置和绝缘探测仪设于检测箱体内,固定调节装置包括底座、支撑杆、放置板、夹板和夹持螺杆,所述支撑杆设于底座上,支撑杆上设有旋转腔,旋转腔内设有旋转电机,放置板旋转设于旋转腔上,旋转电机输出端设于放置板上,所述夹板滑动设于放置板两侧,夹持螺杆旋转设于放置板上;本实用新型属于绝缘测试领域,具体是一种通过固定调节装置可将硅钢片夹持固定,便于不同位置的调节,通过探测装置进行探测,并通过绝缘探测仪的检测于控制计算机将数据呈现和计算,减少手动操作,提高安全性的硅钢片绝缘测试装置。
2021-11-20 105 6.8

取向硅钢成品的晶粒尺寸非常大,其易磁化方向[001]晶向对于轧向的偏差角度对其磁性能影响极大。本文介绍了取向硅钢二次再结晶后成品晶粒位向的几种测定方法,包括侵蚀法、劳厄法、OIM法、极图法和非对称X射线衍射法等,并对这几种测量方法进行了比较。 The finished product of grain-oriented silicon steel has immense grain size ranging from millimeters to centimeters and the deviation angles of easy magnetization direction from rolling direction plays a remarkable role in magnetic properties of grain-oriented silicon steel.The methods in common use for determining the deviation angles of crystal direction are introduced,which include the etch-figure method,the Laue method,the OIM method,the pole figure method and the asymmetrical X-Ray diffract... 
2011-04-28 96 5.8

对冷轧无取向硅钢在冶炼过程中各个工序的顶渣进行了检测,分析了顶渣变化原因,并得出结论:硅钢生产宜采用复吹转炉,以降低吹炼终点渣中TFe含量,进而减轻对精炼的压力;使用低S、低Al2O3含量中间包覆盖剂;RH脱氧及合金化顺序采用先加硅铁后加铝;首罐宜经LF提温并降低渣中TFe。 The top-surface slag used for the various production processes in smelting coldrolled non-oriented electrical steel is tested and based on tested results the cause of the top surface slag change is analyzed.So it is concluded that the combined blown converter is more suitable to be used for smelting electrical steel in order to reduce the content of TFe in slag at blow end point and then much better results can be achieved during the period of refining.Secondly the tundish flux contenting low co... 
2013-03-28 103 5.8

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