硅钢资料

一种高硅钢的电渣重熔生产方法，电渣重熔过程渣系组成为，按重量计，CaF255%～59%、Al2O326%～30%、CaO7%～10%、SiO21%～9%，所述高Si钢，按重量计，钢中含有Si0.5%～2.0%，Al0.01％～0.05％。采用本专利设计的渣系成分配比，保护气氛电渣的情况下，可有效控制Si含量0.5‑2.0%的高Si钢电渣过程不增铝。

借助OM、激光共聚焦显微镜、质谱仪和电解萃取等设备和方法，研究了添加微量稀土La（质量分数0.001 1%）的取向硅钢在轧制前采用不同加热保温时间对抑制剂固溶行为的影响。结果表明：当稀土取向硅钢在1 250℃分别保温10、20、30 min后，试验钢晶粒尺寸随保温时间延长有先快后慢的长大趋势；三种抑制剂元素Mn、Cu和Al均发生固溶，保温时间对Mn和Cu两种元素的固溶影响明显，固溶量分别由69.8%和43.7%增加至84.2%和85.2%；随着保温时间的延长，稀土取向硅钢中抑制剂的小尺寸未溶物逐渐减少直至消失，较大尺寸未溶物（300～600 nm）逐渐转变为小尺寸未溶物逐步溶入基体中，数量减少且未溶物的类型由复杂逐渐转变为单一。 In this paper the solid solution behavior of the inhibitor under various holding time in 0.001 1 %La oriented silicon steel during reheating had been investigated by using OM, LM, methods of electrolytic extraction and mass spectrometer. The results showed that grain size of the test steel increased significantly with the holding time prolonging when the rare earth oriented silicon steel was heated to1 250 ℃ and held for 10, 20 min and 30 min respectively, and the growth trend slowed down after ... 

本发明的一个实施方案提供一种取向电工钢板及其制造方法，以重量％计，所述取向电工钢板包含：Si：3.0‑4.5％、Mn：0.05‑0.2％、Al：0.015‑0.035％、C：0.0015％以下(0％除外)、N：0.0015％以下(0％除外)、S：0.0015％以下(0％除外)、余量的Fe及其它不可避免的杂质，并且满足以下关系式1和关系式2。[关系式1](W13/50/W17/50)≤0.57[关系式2](W15/50/W17/50)≤0.76(其中，所述关系式1中，Wx/y表示施加磁场的大小为x/10T且频率为yHz的条件下的铁损值)。

结合工业化生产过程中出现的同卷带钢头、尾磁性能差异现象,对50SW1300牌号无取向硅钢同卷带钢头、尾试样的夹杂物、晶体织构和显微组织进行了分析研究。结果表明,夹杂物、晶体织构是影响成品钢卷磁性能的重要因素。夹杂物是造成同卷带钢头、尾铁损差异的主要原因。夹杂物数量越多,尤其是小尺寸的夹杂物数量越多,对成品带钢的磁性能影响越大,对于本试验而言,AlN和MnS是影响成品带钢磁性能的主要夹杂物。晶体织构是造成同卷带钢头、尾磁感应强度差异的主要原因。有益的{100}和Goss织构含量越大,有害的{111}<110>和{111}<112>织构含量越小,即有益织构与有害织构含量比越大,成品带钢的磁感应强度越大。 Based on the industrial manufacture of non-oriented silicon steel sheets 50SW1300, the magnetic property variation of head and tail of the same finished steel sheets was discussed by analyzing non-metallic inclusion, crystal texture, and microstructure. Results show that, both of the non-metallic inclusion and the crystal texture will affect the magnetic properties significantly. The non-metallic inclusion is the key factor of the core loss variation of head and tail of the same finished steel s... 

以市场上购买的取向硅钢成品板为原料，经不同压下率冷轧至0.23～0.08 mm不等。借助X射线衍射仪(XRD)检测了冷轧后样品中的织构组分及其含量，利用电子背散射技术(EBSD)测量了试样的取向因子分布情况。观察了孪晶的形貌与晶体学特征，分析了硅钢超薄带的塑性变形行为。结果发现，在平面压缩应力下，{112}<111>滑移系的取向因子较大。随冷轧压下率的增加，Goss织构的含量逐渐减少，{212}<141>织构组分的含量先增加后减少，{111}<112>织构组分的含量逐渐增加，织构组分以{110}<001>→{212}<141>→{111}<112>顺序演变。冷轧后样品中出现了孪晶，其晶体取向为{001}<110>,冷轧过程中孪晶取向没有发生变化。 The commercial finished oriented silicon steel plate as the raw material were rolled to 0.23-0.08 mm. With the X-ray diffractometer(XRD), the texture components and their volume fractions in the cold-rolled samples were detected. And the orientation factor distribution of the cross-section of the samples was measured by the electron backscattering technique(EBSD). The morphology and crystallographic characteristics of twins were observed, and the plastic deformation behaviors of the ultra-thin o... 

本发明公开了一种基于硅钢服役特性的立体卷铁心单框损耗测量方法及系统，根据硅钢片在立体卷铁心中的服役特性，获得测量铁心单框所需的非正弦励磁电压波形，通过所述立体卷铁心的心柱绕组电压和单框绕组电压之间的关系，确定所述被测立体卷铁心单框所需的电压有效值，再通过计算机、数据采集卡D/A转换器、功率放大器、隔离变压器和示波器，直接在所述立体卷铁心单框上加载励磁电压，利用功率表测量立体卷铁心单框损耗。本发明利用硅钢的服役特性，获得测量立体卷铁心单框所需的非正弦励磁电压波形和电压有效值，再将励磁电压直接加载到被测立体卷铁心单框，测量立体卷单框铁心损耗。

采用取向分布函数分析了无取向电工钢不同再结晶退火温度下的织构变化及织构对磁感应强度和铁损的影响,并计算了无取向电工钢的磁晶各向异性能。结果表明,随着实验钢的再结晶退火温度升高,Goss织构和立方织构组分显著增强,而{111}面织构强度却减弱。较高的退火温度有利于减小织构因子,提高磁感应强度。磁晶各向异性能计算结果显示,随着再结晶退火温度升高,无取向电工钢板的磁晶各向异性能降低。 The recrystallization texture and the relationship of texture to magnetic induction intensity and core loss of a non-oriented electrical steel were investigated by orientation distribution function analysis. The magnetic anisotropy energy of the steel was calculated also. The results show that,the intensity of Goss texture and cubic texture increases,but the intensity of { 111} texture decreases with increasing recrystallization annealing temperatures of the steel. The higher annealing temperatu... 

研究了冷轧95%变形量无取向硅钢不同退火温度(710～1 050℃)下再结晶织构特征.再结晶刚完成时(710℃退火),呈现强γ({111<112>～<134>)与弱{114}<481>织构特征;随退火温度升高至900℃,γ明显减弱,{114}<481>组分持续增强,形成典型的{h,1,1}<1/h,1,2>织构;进一步升温至1 050℃,再结晶织构不再发生明显变化.基于EBSD分析,{114}<481>组分的持续强化可归因于其明显的尺寸优势以及较高频率的高能晶界(取向差角为20°～45°). A non-oriented silicon steel was heavily rolled to 95% reduction and subsequently annealed at 710~1 050 ℃ to investigate recrystallization texture evolution.When annealed at 710 ℃ with complete recrystallization,the texture is characterized by a strong partial γ fiber spreading from {111}<112> to {111}<134> and a weak {114}<481> component.As annealing at 900 ℃,γ fiber is decreased significantly while {114}<481> is increased consistently,producing a typical {h,1,1}<1/h,... 

本发明涉及取向硅钢技术领域，且公开了包括以下步骤：步骤一：冶炼，冶炼经转炉和RH精炼后得到钢水，在进行冶炼的过程中通入空气并设置总进气量100‑300Nl/min，且通入的空气中氧含量为20‑21％之间。该磁性优良的高磁感取向硅钢的气氛控制工艺，通过在不同的流程中，加入一定配比的氧气和氮气的含量，有效的提升每个阶段的气氛控制精度，从而得到最终的高磁感取向硅钢达到优良，避免了因气压、流量等因素影响最终高磁感取向硅钢磁力效果，炉渣中FeO含量减少，提高钢回收率和炉衬寿命，进而也起到降低生产成本的效果，且进行精确的气氛控制，使得在进行高磁感取向硅钢的冶炼中，使得冶炼的效果更好，使得冶炼出来的高磁感取向硅钢的磁性更加的优良。

本实用新型公开了E字型硅钢片的级进模冲压装置，属于冲压模具设备领域，所述下模具包括与冲孔凸模、冲方孔凸模、切断凸模分别对应且相适配的冲孔凹模、冲方孔凹模、切断凹模，所述上模具上设有对条料板进行输送的导料板，所述冲孔凸模、冲孔凹模均设有两对并且并排设置，且每对冲孔凸模、冲孔凹模均设有两个，每个所述冲孔凸模、冲方孔凸模、切断凸模的顶端均用微米级间隙固定安装于上模具上，所述冲孔凹模、冲方孔凹模、切断凹模的底端均用微米级间隙固定安装在下模具上。本实用新型中各个凸、凹模分别采用硬质合金拼块、镶块式的结构并用微米级间隙固定安装在上、下模具上，这样不仅可节省材料的费用，同时还便于人们后期对模具的维修和使用。

试验了通过NaCl-KCl-NaF-SiO₂熔盐在电流密度50 mA/cm²、电沉积脉冲电流正反向比9:1和750⁸50℃60min电沉积下阴极（/mm）20×20×0.5的1.6Si无取向冷轧硅钢片断面层硅的分布,并通过计算得出Si的扩散系数。结果表明,电沉积温度由750℃提高至850℃时,试样中Si含量增加,扩散的深度由18μm提高到40μm;电沉积温度与Si在钢中的扩散系数近似符合Arrhenius指数关系。 The distribution of silicon at cross section of cathode（/mm） 20 × 20 × 0.5 sheet of 1.6Si non-oriented cold rolled silicon steel after electro-deposit treatment by NaCl-KCl-NaF-SiO₂ molten salt with current intensity 50 mA/cm²,electro-deposit pulse current positive-negative ratio 9:1 at 750 850 ℃ for 60 min has been tested and the diffusion coefficient of Si is obtained by calculation.Results show that with increasing electro-deposit temperature from 750 ℃ to 85... 

阐述了国内外高磁感取向硅钢的生产研究水平与发展趋势,包括通过提高高斯晶粒取向度、细化磁畴、涂覆张力涂层、减薄钢片厚度进一步降低铁损以及低温加热技术和短流程技术新工艺。分析高磁感取向硅钢在我国大型电力变压器上的应用情况,结果表明,发展更薄规格高磁感、低铁损、低磁致伸缩取向硅钢可为大型变压器的安全性、节能性及环保性提供有效保障。 The research progress and development trend of high magnetic induction grain-oriented silicon steel at home and abroad are summarized,including the technology of improving the Goss alignment,refining domain wall,adding stress coating,decreasing thickness of sheet,and the new technique of reducing heating temperature of casting slab and shortening operational.Moreover,the application of high magnetic induction grain-oriented silicon in power transformer is presented.Developing grain-oriented sili...