硅钢资料

对w(Si)=3%无取向硅钢进行表面机械研磨处理(SMAT)和异步轧制(CSR),获得表面纳米结构,再进行550～650℃、4 h固体粉末渗硅处理,用透射电镜(TEM)、扫描电镜(SEM)和X射线衍射仪(XRD)研究表层组织演变。结果表明:经过SMAT后,w(Si)=3%无取向硅钢表面形成了等轴状、取向呈随机分布的、晶粒尺寸为10 nm的纳米晶组织;异步轧制后,表面纳米晶组织保持不变;550～650℃、4 h渗硅处理后,SMAT+CSR样品表面形成化合物层,其厚度随着温度的升高由17μm增加到52μm;化合物层由Fe3Si和FeSi相组成. Nanostructured surface layer was fabricated on a 3%(mass fraction) non-grain oriented silicon steel by means of surface mechanical attrition treatment(SMAT) and cross-shear rolling(CSR),and then a solid powder siliconizing treatment was carried out for the SMAT+CSR sample at 550~650 ℃ for 4 h.The microstructural evolution was examined by using transmission electron microscopy(TEM),scanning electron microscopy(SEM) and X-ray diffraction(XRD).Experimental results show that: equiaxed nanocrystallin... 

本实用新型涉及硅钢生产设备技术领域，具体公开了硅钢冷轧用厚壁套筒，包括外筒和内筒，所述外筒与内筒之间固定有若干连接板，所述外筒上开设有插缝槽，所述外筒的内壁上设有靠近插缝槽设置的限位件，所述限位件包括锁止板和弹性件，弹性件一端固定在外筒的内壁上，另一端固定在锁止板的顶部，所述锁止板上设有朝向插缝槽的斜面。本专利中通过外筒与内筒设置，既提高了整个套筒的厚度，使其能够承受硅钢带卷绕时的压力，同时也减少因提高套筒厚度使得套筒的重量增加的问题，这样设置整个套筒的质量较轻。

抑制回硅是低硅品种钢冶炼的重点和难点,南钢中厚板卷厂通过转炉出钢弱脱氧操作,精炼炉弱脱氧升温,脱氧、脱硫造渣,连铸严格的保护浇注及吹氩塞棒、吹氩浸入式上水口的应用等一系列工艺优化和操作的改进,使整个冶炼过程钢水回硅量稳定控制在200×10-6以内,钢水终点成分完全满足低硅钢要求。 Control of increasing silicon is the emphasis and difficulty in low silicon varieties steel smelting.The Nisco Wide Plate/Coil Plant can control the silicon content in molten steel keeping within 200×10-6 through whole steelmaking process by using oxygen residual operation in converter tapping,oxygen residual and increasing temperature,deoxidation,desulfurization,slag refining,protection cast,blowing argon by plugged nozzle,blowing argon by submerged entry nozzle in continuous casting,and other ... 

采用双辊薄带连铸技术试制了3.98%Si-0.71%Al无取向硅钢铸带,研究了二次冷轧法对硅钢组织和磁性能的影响。结果表明:硅钢铸带显微组织为等轴晶组织,铸带再结晶较完全,常化对铸带显微组织影响较小。二次冷轧工艺和一次冷轧工艺下,最终退火后成品显微组织为等轴晶组织,二次冷轧法最终退火后的晶粒尺寸小于一次冷轧法。二次冷轧法能够提高成品磁性能. Effect of double cold rolling on magnetic properties and microstructure of 3.98%Si-0.71%Al non-oriented silicon Steel Sheets cast by twin-roll thin strip casting process were investigated.The results show that the structure of the thin strip is equiaxed crystal,the recrystallization is complete and normalizing has lesser effect on microstructure.Using both cold rolled and double cold rolled process,the microstructure is equiaxed grain after final annealing.The average grain size of annealed shee... 

本发明公开了一种消除取向硅钢单边浪缺陷的方法，其包括如下步骤：1)、制作专用盖板；所述专用盖板包括环形板，所述环形板外边缘设有多个剪开处；2)、将待装炉的取向硅钢钢卷吊运至高温退火炉炉台；3)、将专用盖板铺于取向硅钢钢卷上端面外圈；4)、将专用盖板上的各剪开处向下弯折，勾住取向硅钢钢卷外沿；5)、扣上内罩，内罩底边砂封；6)、钢卷进炉，完成高温退火过程。本发明能有效保护钢卷边部，防止钢卷上端面翻边；该方法还能将钢卷内部水分排出，避免钢带表面氧化。

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... 

一种低温高磁感取向硅钢的热轧方法：经转炉冶炼并浇注成坯；对铸坯加热后进行粗轧：首先确定粗轧减宽量；根据所确定的粗轧减宽量进行粗轧；进行精轧；常规进行下工序。本发明采用低温板坯加热技术，降低了板坯烧损和修炉负担，且边裂发生率比现有技术的不低于18%的基础上能降低5%以上，由此节约资源及降低能耗。

【摘要】 <正>据武钢股份公司提供的消息,武钢将与...

适用范围 本标准规定了特高压变压器用冷轧取向电工钢带的术语和定义、分...

6.5%(质量分数)Si高硅钢具有优异的软磁性能和广阔的应用前景,然而其室温脆性和低的热加工性极大地制约了它的发展。近年来,人们对高硅钢制备技术的研究已经取得了很大的进展,如何通过织构的优化提高高硅钢的磁性能越来越受到人们的关注,归纳和总结了不同工艺制备的高硅钢中的织构演变规律和特点,以及对应的典型磁性能。 6.5wt% Si high silicon steel has excellent soft magnetic properties and wide application prospect.However,the brittleness of room-temperature and poor workability of cold rolling limit its deve-lopment.Recently,the researches of the preparations of high silicon steel have been already made great breakthroughs,and then,more and more attentions are focused on how to optimizing the texture of high silicon steel so as to obtain the best magnetic properties.The evolution of textures of 6.5% Si high s... 

针对某硅钢车间ST机组的除尘系统除尘效率较低、排放浓度不达标、二次污染较严重的问题,通过现场调研,对除尘系统、含尘气体组分与物性参数等进行测试和分析,运用管道伴热技术改善粉尘黏性后,再选取合适的除尘器对粉尘进行除尘处理,大大地提高了系统的除尘效率。 To solve the problems of low dust removal efficiency, substandard emission concentration and severe secondary pollution, some investigations are conducted to test and analyze the dust removal system,dust-gas composition and relevant physical parameters.Moreover, dust removal efficiency is greatly improved by the use of pipe heat tracing technology and by choosing appropriate dust remover. 

本发明公开了一种宽频率低铁损变频电机用无取向电工钢及制造方法，属于无取向电工钢领域。针对现有无取向钢在较宽频率范围内电磁性较差的问题，本发明提供一种宽频率低铁损变频电机用无取向电工钢，包括如下重量百分比的各组分：Si：2.80％～3.50％；Als：0.20％～0.60％；Mn：0.20％～0.60％；P：0.01％～0.20％；C：≤0.005％；S：≤0.02％；N：≤0.02％；Ti：≤0.005％；其余为铁和不可避免的杂质；其中C、S、N和Ti的重量百分比满足下式：C％+S％+N％+Ti％≤0.009％。通过控制合金元素的含量达到电工钢电阻率增加、磁滞伸缩减小，涡流和磁滞损耗均降低的目的。通过本发明提供的制造方法在正火过程中选用低温工艺，改善随着合金元素量的增加金属强度增加、塑性降低、冷加工性能降低的问题，使其最终在较宽频率范围内电磁性能优异。