硅钢资料

采用热模拟方法及EBSD技术,研究Fe-3 wt%Si电工钢在不同温度下组织的动、静态再结晶及晶粒取向特征,特别是少量奥氏体对铁素体动、静态再结晶组织及取向的影响。结果表明,不同温度形变的组织主要分三类:形变长条铁素体、珠光体和等轴细小铁素体。长条形变铁素体内发生动态回复或连续式的动态再结晶,奥氏体周围的铁素体动态再结晶加速,部分以传统的不连续方式动态再结晶。铁素体、奥氏体都可发生静态再结晶。奥氏体的静态再结晶在1050℃以上明显,铁素体的静态再结晶随温度的升高逐渐进行,最显著的再结晶发生在1050℃。不同温度形变的样品,其形变晶粒取向主要以<111>和<100>为主,小等轴铁素体晶粒除与大形变铁素体取向相近外,出现了<110>取向及其它取向。 Static and dynamic recrystallization and grain orientations in a hot-compressed Fe-3 wt% Si electrical steels were studied at different temperatures using Gleeble simulator and EBSD technique,particularly focusing on the effect of small amount of austenite on ferritic microstructure and orientations.The results show that microstructure of the compressed steel,depending on deformation temperature,consisted of elongated and deformed ferrite,pearlite and fine equal-axed ferrite.The elongated ferrit... 

为满足用户对无取向电工钢中硫含量的要求,采用CaO-CaF2复合渣系为脱硫剂,利用RH投入法对无取向电工钢进行深脱硫试验。试验结果表明,RH精炼渣成分控制在w CaO43%~51%、w Al2O325%~31%、w MgO4%~6%、w SiO29%~12%、w(FeO+MnO)3%~6%,在脱硫剂加入量为6~8 kg/t时,钢中平均硫含量从32×10-6降低到18×10-6,RH平均脱硫率为43.3%,最高达47.1%。利用KTH模型计算精炼终渣平均硫容量为0.003 1,RH精炼结束时渣-钢间实际平均硫分配比从14增加到52。 In order to satisfy the requirements of consumers on sulfur content in non-oriented electrical steel,taking( CaO-CaF 2) based flux as desulfurizer,industrial experiments on deep desulphurization of non-oriented electrical steel were carried out during RH process. The results show that as the compositions of refining slag are appropriately controlled with w CaO of 43% ~ 51%,w Al2O3 of 25% ~ 31%,w MgO of 4% ~ 6%,w SiO2 of 9% ~ 12%,and w( FeO + MnO) of 3% ~ 6%,and the desulfurizer added are at 6 ~ ... 

通过后天抑制剂获得法制备了取向硅钢,对渗氮前后和高温退火升温阶段析出物的析出和转化规律进行了研究。研究结果表明,渗氮前脱碳退火态基体中存在少量的粗大AlN颗粒和细小AlN颗粒,渗氮处理后新析出大量的Si3N4析出物,高温退火升温阶段Si3N4将转化为(Al,Si)N,随着温度的继续升高(Al,Si)N颗粒将发生粗化,(Al,Si)N是后天抑制剂获得法制备取向硅钢的主要抑制剂。 Grain-oriented silicon steels were produced by acquired inhibitor method.The rule of precipitate transformation was studied after nitriding treatment and high-temperature finishing annealing.The results show that a small amount of large AlN and fine AlN are found in matrix before nitriding treatment,and a large amount of Si3N4 is precipitated in matrix after nitriding treatment.During the temperature rising period of high-temperature finishing annealing,Si3N4 would transform into(Al,Si)N,and(Al,... 

主要对硅钢退火炉耐材施工进行阐述,对一期工程与二期工程施工经验进行总结,包括设计、施工、耐材生产、人员素质等方面,指出了工程项目所所存在的不足,为同类型炉窑的施工提供借鉴。 This paper describes the construction of silicon steel annealing furnace refractories;and it was summarized the construction experience of phase-Ⅰ and phase-Ⅱ projects,including design,construction,refractory production,the quality of personnel etc,and pointed out the shortcomings of the project,which provided a reference for the construction of the same type of furnaces. 

本实用新型涉及一种硅钢切边重卷机组，包括依次衔接布置的开卷机、入口穿带装置、入口转向夹送辊、入口剪、切边单元、出口转向夹送辊和卷取单元，所述切边单元包括沿带钢运行方向依次衔接布置的切边夹送辊、入口稳定辊、切边剪和出口稳定辊，所述切边剪的废料出口侧衔接布置有碎边剪，所述碎边剪的废料出口侧配置有切边废料输出装置。本实用新型提供的硅钢切边重卷机组，采用切边剪+碎边剪的组合对带钢进行切边操作，避免了传统的废边卷取方式，能较好地适用于硅钢切边操作。采用切边夹送辊与入口稳定辊和出口稳定辊配合，能显著地提高切边操作时带钢运行稳定性以及保证带钢切边质量，可相应地提高生产效率。

为了解决在纹理背景下冷轧硅钢表面缺陷的分割问题,提出了基于局部信息结构张量和活动轮廓模型的硅钢表面缺陷分割方法。将图像的局部信息引入到结构张量中;在结构张量提取的特征空间中,以KL距离作为区域的概率密度相似性度量建立分割图像的活动轮廓模型;采用Split-Bregman数值解法对模型进行求解。运用提出的分割方法对硅钢表面的一些常见缺陷如纵向划伤、横向划伤、异物和孔洞等进行分割实验。实验结果表明,该方法可以准确地分割出硅钢表面缺陷区域,验证了该方法的有效性。 In order to address the segmentation problem for cold rolled silicon steel surface defect based on the texture background,a novel method based on structure tensor and active contour model is proposed.Image local information is introduced to the structure tensor.In the extracted feature space of structure tensor,KL distance is treated as a regional similarity measure of the probability density to establish active contour model for image segmentation.The numerical solution of Split-Bregman is used... 

本实用新型属于抛丸设备技术领域，具体涉及一种防止钢丸随硅钢板移动的料仓结构，包括料仓，料仓的相对两侧上开有对称设置的开口；料仓的侧壁上滑动连接有位于开口上方的刮板，刮板与料仓之间连接有弹性件；料仓内靠近硅钢前进方向的一侧上设有用于清理硅钢表面物质的清理机构。在刮板与料仓之间连接弹性件，在弹性件的作用下，刮板的下端能够始终贴合在硅钢的上表面，刮板能较好的封堵硅钢与开口之间的缝隙，避免钢丸通过开口与硅钢之间的缝隙排出，提高抛丸机的密封性。

针对硅钢连续退火机组的主要能源介质消耗现状,对现有生产工艺和设备研究采取机组循环用水、增加清洗段漂洗级数等措施可节约大概27 m3/h的过滤水量,并可减少78%的弱碱处理量;将炉子烟气换热系统增加一级余热回收,每年回收的余热相当于583 t标煤消耗,可节约蒸汽5 368 t。 The present situation of energy consumption for silicon steel annealing line is analyzed in this paper.In existing process and equipment conditions,increasing the number of cleaning series will lead to a saving of about 27 m3/h of filter water and reduce 78 % of weak base processing volume.For the flue gas heat-exchange system,adding a waste heat recovery device will recover waste heat equivalent to 583 tons of standard coal per year,corresponding to a saving of steam 5 368 t per year. 

本发明提供了基于硅钢片性能的分类方法、系统、计算机和存储介质，通过抽样选取待分析硅钢片，获取待分析硅钢片的基准B‑H曲线和基准B‑P曲线，以及通过预设检测方法测得待分析硅钢片的样本B‑H曲线和样本B‑P曲线后，根据预设磁通密度监测范围分别选取基准B‑H曲线、基准B‑P曲线、样本B‑H曲线和样本B‑P曲线对应的B‑H基准样本点、B‑P基准样本点、B‑H待分析样本点和B‑P待分析样本点，并基于依此分别得到B‑H样本点距离与B‑P样本点距离分析待分析硅钢片的性能，以及根据分析结果对待分析硅钢片进行分类的方法，基于性能曲线的数据分析对硅钢片性能进行合理的评估分类，不仅实现了对硅钢片质量的有效监控，而且为其使用策略的制定提供可靠依据，保证产品质量的同时，为产品用料选择提供便利。

研究了电工钢SXRC的显微结构和疲劳性能,并与DP钢进行了比较。结果表明,退火温度低温化能够有效的抑制电工钢的再结晶。该钢在固溶铌的作用下,能够在保证电机磁性的同时具有一定的强度。与DP钢相比,SXRC钢的抗疲劳性能更好。 The microstructures and fatigue properties of the electrical steel SXRC we re investigated, and the properties were also compared with the steel DP. The results show that the recrystallization of the electrical steel can be suppressed at lower annealing temperature. The steel presents favorable motor magnetic and also a compatible strength with the help of solid-solution Nb. Compared with the steel DP, the fatigue resistance of the steel SXRC is preferable. 

在Gleeble-3500热/力模拟试验机上对HW600钢进行高温压缩试验,研究在不同试验条件下的变形抗力。试验结果表明:变形温度对变形抗力的影响最为显著,在相同的变形速率下,随着变形温度的升高,变形抗力降低;在同一变形温度下,变形速率增大,变形抗力增加;在同一变形温度、变形速率下,随着变形程度的增加,变形抗力急剧增大,真应变达到0.1后,变形抗力增加趋势变缓。 The high-temperature compression test is done for HW600 steel with Gleeble-3500 thermal simulation testing machine to research its resistance to deformation under different test conditions.It is showed from result that deformation temperature has greatest effect on the resistance,and along with the temperature getting higher the resistance lowered under same deformation rate;the resistance increases along with deformation rate getting greater under same temperature;and under same deformation tem... 

本发明公开了一种低碳低硅钢铝质复合脱氧剂及其制备和使用方法，属于钢铁冶金技术领域。本发明为改善低碳低硅钢种可浇性差、夹杂降级率高的问题，提供了一种低碳低硅钢铝质复合脱氧剂，其包括：金属铝：50～60％；7Al2O3·12CaO预熔渣：10～20％，钝化CaO：10％～20％，Fe：10～20％，其余为微量杂质元素。本发明通过深入研究铝脱氧后钢中夹杂物的行为，提供了一种低碳低硅钢铝质复合脱氧剂，通过在转炉出钢过程加入该脱氧剂，能够有效降低钢中大型夹杂比例、对夹杂物改性，在不延长精炼时间的情况下降低夹杂物总量，改善目前此类钢种生产过程中存在的可浇性差，夹杂降级率高的问题。