硅钢资料

利用电子探针面分析、状态分析及电子背散射衍射相分析技术研究硅钢高温氧化铁皮的显微结构。电子探针面分析可以直观的看出元素的分布状态,初步判断氧化铁皮的结构,而状态分析可以准确表征常规氧化铁皮中铁元素的状态,对于合金元素富集区域则通过电子背散射衍射相分析技术来标定。结果表明,高温氧化铁皮的结构主要有4层,即最外层为厚度约为10μm的Fe2O3相,次外层为Fe3O4相,中间层为FeO相上分布有颗粒状的Fe3O4相,最内层为FeO相和Si元素富集的Fe2SiO4相。其中Fe2SiO4层的分布特征与加热温度密切相关:1 100℃时,Fe2SiO4相呈颗粒状,弥散分布在FeO层;1 200℃时,Fe2SiO4相呈液态,侵入基体和疏松的FeO层,且沿着FeO晶界呈网状分布。 The microstructure of high temperature oxide scale on silicon steel was characterized by electron probe microanalyzer(EPMA)mapping analysis,state analysis and electron backscatter diffraction(EBSD)phase analysis.The element distribution and the initial structure of the oxide scale could be detected by EPMA mapping analysis apparently.And the state of iron in the conventional oxide scales could be determined by state analysis.Meanwhile,the alloy-rich region could be identified by EBSD phase analy... 

通过对取向硅钢进行脉冲磁场退火实验,发现在相同的退火时间(6.0 min)内,低于1 T的脉冲磁场可以在一定程度上提高取向硅钢的磁感(B8),而高于1 T的脉冲磁场则会使取向硅钢的磁性能急剧恶化.同时发现,脉冲直流电加热方式会使取向硅钢的磁性能恶化.研究表明,脉冲磁场退火有望成为一种调控材料微观结构的有效手段. We have carried out experiments of annealing by pulse magnetic field.The results show that a pulse magnetic field with intensity lower than 1 T can promote magnetic induction density(B8) of grain-oriented silicon steel,while the magnetic properties deteriorate sharply when intensity is higher than 1 T.It has also been found that heating by using pulse direct current can cause the magnetic properties to deteriorate,in contrast to the traditional heating using resistance furnace.Our research shows... 

本发明实施例公开了一种硅钢稀酸废水零排放处理方法和系统，所述方法包括：获得稀酸废水；对所述稀酸废水中的含硅固体杂质进行分离与回收，以获得稀酸废水净化液和含硅脱水泥饼；将所述稀酸废水净化液进行两级电吸附分盐处理，利用直流电场将稀酸废水中氯化亚铁组份浓缩分离，以获得分盐浓水和分盐淡水；将所述分盐浓水与酸再生工艺耦合，以获得再生盐酸；将所述分盐淡水调质再生处理，以获得铁系絮凝剂和再生工业净化水。所述硅钢稀酸废水零排放处理方法和系统，可以较低成本和能耗实现硅钢稀酸性废水全回用，真正实现废水零排放；可回收稀酸废水中的铁素和稀盐酸，不产生固体废物，可彻底实现废弃物资源化利用。

本发明涉及电机技术领域，具体涉及一种具有低应力隔磁桥的硅钢片和电机转子。包括硅钢片、开设在硅钢片上的若干个磁钢槽组和永磁体，若干个磁钢槽组沿所述硅钢片周向分布，每个磁钢槽组均至少包括一对沿径向对称分布的磁钢槽，永磁体嵌设于磁钢槽内，磁钢槽朝向硅钢片内侧的一端设有空腔，一对磁钢槽的空腔之间通过隔磁桥隔离，隔磁桥的空腔上壁面与空腔侧壁面之间通过第一椭圆弧过渡连接，隔磁桥的空腔下壁面与空腔侧壁面之间通过第二椭圆弧过渡连接。有效降低该处隔磁桥在拐角处所受应力，进而提高该隔磁桥的强度，避免磁钢和铁芯产生形变而断裂。

本发明提供一种无取向硅钢低温无铬环保绝缘涂层立式干燥固化工艺，冷轧无取向硅钢在镀锌机组经过退火后，通过涂层机涂覆低温无铬环保绝缘涂层，再经过立式干燥炉完成干燥固化，生产冷轧无取向硅钢产品。低温无铬环保绝缘涂层厚度0.8~1.0μm；立式干燥炉各段炉温：加热一段炉温420~450℃，加热二段炉温460~490℃，加热三段炉温500~530℃，加热三段出口板温200~240℃，冷却段出口板温60~65℃；立式干燥炉各段加热时间：加热一段、加热二段、加热三段的加热时间均为3.5~4s。采用本发明工艺不仅能保证钢带涂层均匀，使最终产品的涂层具有优异的绝缘性、耐蚀性、附着性、冲片性、焊接性和耐热性，满足下游工序要求，还可提高产品合格率，减少废品，保证生产顺行。

本发明涉及一种百吨级超低氮硅钢大钢锭的制造方法，涉及硅钢的制造技术领域，包括以下步骤：取优质废钢、生铁配料作为炉料，电炉冶炼，电炉冶炼，LF精炼、两次VD脱气，精炼包真空吹氩直注的工艺方法。其优点在于，本发明提供的百吨级超低氮硅钢大钢锭的制造方法，采用本方法制造的百吨级大型超低氮硅钢钢锭，成分全部满足规范要求，其中氮含量控制在25ppm以下，氧含量控制在10ppm以下，氢含量控制在0.7ppm以下，硫含量控制0.002％以下，磷含量控制0.006％以下，铝含量控制0.020％以下。

本实用新型公开了一种硅钢片制作用防止硅胶泄露结构，包括运行组件与固定密封组件，所述运行组件的内侧壁设有固定密封组件，所述运行组件包括板体、第一凹槽、壳体、硅钢片、支撑板、连接块、密封圈、防护板和通孔，所述板体的内侧壁开设有第一凹槽，所述第一凹槽的内部设有壳体，所述壳体的内侧壁设有硅钢片，所述硅钢片的两侧相互对称焊接有四个连接块，四个所述连接块相斥一侧均贴合于第一凹槽的内侧壁，本实用新型首先通过硅钢片两侧密封圈保障密封效果，设置的橡胶管起到二次密封防护作用，并借助其内部的弹簧及U型板实现防偏移的效果，最后一方面可以在壳体相邻组件内侧加胶并且提高其内部硅钢片的厚度，以此实现多重密封防漏。

采用X-射线衍射分析技术测定了取向硅钢热轧板在不同压下率下不同厚度处的织构。结果表明,在压下率低于80%的情况下,几乎所有试样的不同厚度处的织构均为旋转立方织构类型{100}<011>,但不同压下率、不同厚度处的织构强度存在很大差异;在压下率大于80%的情况下,不同试样的不同厚度处的织构类型发生了变化,其织构类型为旋转立方织构或高斯织构{011}<100>,且当织构类型为旋转立方织构时,织构强度存在很大差异,而当织构类型为高斯织构时,织构强度差异相对较小。 The texture of the grain oriented silicon steel hot rolled plate at different compressibility has been measured.The experimental results have shown that the texture of all samples at different thickness is {100}<011> when the compressibility is below 80%,and its intensity at different compressibility and thickness is difference.The texture of all samples at different thickness is variable when the compressibility is above 80%,it is {100}<011> or {011}<100>,and the intensity of ... 

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... 

通过对激光粒度分析仪测量硅钢级氧化镁(MgO)的分析条件进行优化,如分散介质、分散方式、样品预处理、仪器暗淡度等,探讨了硅钢级MgO粒度范围测量重现性较好的试验方法,满足硅钢生产过程控制对MgO粒度的要求。 The analysis condition of the laser particle size analyzer on grain oriented silicon-steel grade magnesium oxide is optimized,including the dispersion medium,dispersion methods,sample preparation,and instrument obscuration,etc.Therefore,particle size measurement with good reproducibility for silicon-steel magnesium oxide is discussed,which may meet the requirement of MgO particle size for silicon-steel process control. 

对高牌号无取向电工钢35W300的成品进行了第二次退火,对第二次退火后的成品性能、纵横向磁性能差异和组织变化进行了分析。结果表明,随着第二次退火温度的升高,晶粒长大,磁性能优化。铁损平均值下降0.087 5W/kg,磁感平均值升高0.008T。第二次退火温度为820℃的产品的磁性能能够满足用户使用要求。 The product of high grade non-oriented electrical steel 35W300 was annealed at the second time.Microstructure,the difference of magnetic properties in the vertical and horizontal and were studied.The results show that the grain grew up and magnetic properties optimized with the increase of annealing temperature for the second time.Iron loss average declines in 0.0875 W/kg,magnetic induction average increases 0.008 T.The magnetic properties can meet the requirements of users at the second anneali... 

介绍了国内无底层取向电工钢生产技术水平、产量和用途，简述了无底层取向电工钢作为取向电工钢超/极薄带母料及应用于制作大型发电机组铁心、风电等电机铁心和变压器铁心等的情况。 The production technology level,output and application of domestic glassless grainoriented electrical steel were introduced,and the application of glassless grain-oriented electrical steel as parent material of ultra-thin strip of grain-oriented electrical steel and in making large-scale electric generator cores,wind power motor cores and transformer cores were briefly described.