硅钢资料

本文以热轧常化板为初始材料,采用二次冷轧法与三次冷轧法制备了0.1 mm厚的取向硅钢薄带,测定相应的磁性能,并通过EBSD取向成像技术检测了二次冷轧法与三次冷轧法各工艺过程中织构与组织演变规律。结果表明,采用最终冷轧压下率适中的三次冷轧法,能在冷轧至0.1 mm时保存较多的高斯晶核,使得高温退火后的磁性能明显优于二次冷轧法。最终冷轧压下率通过影响脱碳退火后样品中的{111}<112>织构组分及Goss晶粒数量对最终二次再结晶产生重要影响。 Grain-oriented silicon steel sheets with a thickness of 0. 1 mm were produced from hot-rolled and normalized sheets by two-step-rolling and three-step-rolling methods. Their magnetic properties were measured,and the textures were detected by EBSD technique. The results show that the three-step-rolling method,which has a moderate reduction rate of final cold rolling,can maintain more { 110} < 001 >nucleus,and thus obtaining better magnetic properties compared with the two-step-method. The f... 

本发明涉及一种含磷高磁感无取向硅钢的生产方法，工艺路线：铁水脱硫－转炉冶炼－RH精炼－连铸－热轧－酸洗－冷轧－连续炉退火－涂层－性能检验－包装，具体步骤包括：1)将钢水冶炼至目标成分后采用连铸方式将钢水铸成坯；2)热轧板坯加热炉均热段板坯温度950～1050℃，终轧温度控制在780～830℃，卷取温度600～680℃；3)酸洗后冷轧，控制冷轧整体压下率80％以上，至成品厚度，增加剪切带组织；4)连续退火炉快速加热段温度设定1000～1150℃，增加有利织构组织形核；均热段温度设定750～830℃，全氮气干气氛保护，退火工艺速度110～150m/min，满足晶粒度8～4级。本发明在减少硅、铝、锰合金添加量的情况下，改善铁损提高磁感性能，提高机械性能。

对CSP流程生产的无取向电工钢M50W800不同尺寸样品的磁性能进行了测试和分析,结果表明:采用不同单片检测的磁性能结果与标准的Epstein方圈样品检测对比,存在明显的偏差;且同一尺寸的单片纵横向样品之间相比较,对应的磁性能差异性也较大。几种不同尺寸的单片样品,以320mm×30mm尺寸的纵横向平均值最接近标准Epstein方圈样的性能值,其铁损偏差最小。 The magnetic properties of M50W800 non-oriented electrical steel produced by CSP process were tested and analyzed with samples of different sizes,showing that significant deviation existed compared to that of Epstein square circle sample.In particular,obvious difference in magnetic properties also existed between longitudinal and transverse samples of the same size.For test samples of different sizes,the average magnetic properties of 320mm×30mm samples are the closest to that of Epstein square ... 

本发明公开了一种超高效变频空调压缩机用无取向硅钢薄带及其制造方法，属于无取向硅钢技术领域。本发明包括以下重量百分比的组分：C≤0.003％，Si：2.0％～2.5％，Mn：0.15％～0.5％，Als：0.3％～0.7％，Sn：0.05％～0.11％，S≤0.003％，P≤0.03％，B：0.002％～0.004％，Ca：0.003％～0.005％，N≤0.003％，Ti≤0.003％，其余为Fe及不可避免的杂质，且Mn/S比控制在20～60范围内，B/N比控制在0.7～1.5，Ca/S的比例≥1。为解决现有技术中存在的问题，本发明通过添加合金元素以及偏析元素，配合连铸、热轧、常化和连续退火等热处理工艺，以及优良的冷轧板形控制技术，实现0.30～0.35mm厚度薄规格的高效无取向硅钢产品，具备优异的磁性能和高屈强比的力学性能，满足高效变频空调压缩机电机磁性能和关节式定子高速冲裁对力学性能和板形的高标准要求。

对欧盟市场汽车压缩机专用产品进行技术解析,对比分析了其电磁性能、退火和发蓝处理、物理性能、化学成分、应用特点等参数。探讨国内外电工钢产品应用方式的不同特点,并结合鞍钢自身工艺装备和炼钢、热轧、冷轧工艺参数介绍了其生产可行性。提供了冶金工艺流程下,后工序电工钢专业生产线及传统冷轧系统生产线两种生产方式,均能满足用户最终使用要求。 The technology of automotive compressor accommodation manufacture of European Economic and Monetary Union market was described.The magnetic properties,annealing bluing,physical properties,chemical composition,application parameters were analysed.The different characteristics of the application of electrical steel products,the feasibility of manufacture on the existing technology and equipment,steelmaking,hot rolled,cold rolled technical parameters were discussed.The professional product line of ... 

本发明涉及一种转炉冶炼回炉高硅钢水的方法，转炉中兑入回炉高硅钢水，再兑入铁水至预定装入量，使转炉中的钢水硅含量≤1.0％；转炉采用双渣冶炼的方法，加入的造渣料包括活性石灰、白云石、轻烧白云石、烧结矿；吹炼时氧累达到83％‑85％时使用副枪测量TSC，按TSC测量数据吹炼至钢水目标成分和目标温度后提枪，出钢。本发明实现转炉冶炼回炉高硅钢水的稳定控制。降低钢厂经济损失，减少炼钢生产事故率。提高了炼钢生产作业率。

研究了CSP工艺流程生产的硅含量为1.5%的无取向电工钢在不同常化温度下对磁性能的变化。研究结果表明:随着常化温度的提高,热轧板的晶粒尺寸增大,且组织均匀性提高;此外成品的有利织构组分{100}<0vw>、α、η增强,不利织构组分减弱;铁损P1.5/50呈下降趋势,磁感B50上升平缓。在常化工艺为970℃×2.5min下,对应的铁损P1.5/50<3.4W/kg,磁感B50>1.74T。 The effect of normalizing temperature on the magnetic properties of non-oriented electrical steel containing 1.5%silicon produced by CSP process was studied.The results show that with increasing normalizing temperature,the average grain size of hot-rolled plate increases and the microstructure uniformity is improved.Furthermore,the texture components of finished products are improved through enhancing of{100}<0vw>,αandηtextures and weakening of{111}<112>texture;the core loss P1.5/50 ... 

本发明公开了一种无取向电工钢清洗工艺，包括以下步骤：1)在脱脂剂箱体中添加脱脂剂溶剂，通过喷射泵将脱脂剂分别从上下两路管道喷出，经过流量控制电磁阀进入喷射梁，通过喷嘴喷洒在带钢表面；2)带钢轧制后温度为100～150℃，速度为600～1000m/min，带钢表面高温确保脱脂剂与带钢表面残留油脂反应充分，且在高速下喷射的脱脂剂与带钢相向而行，使带钢表面反应后残留硅泥、铁粉被迅速带走；3)喷射后的脱脂剂流入收集槽中，通过泵重新打入脱脂剂箱体中，实现脱脂剂的循环利用。其利用轧制时产生的高温及高速对带钢表面残留乳化液斑迹、铁粉、硅泥进行清洗，清洗彻底高效。

本发明一种解决取向硅钢热轧板晶粒粗大的方法，在取向硅钢的成分设计中减少固溶温度较高的MnS的含量，降低铸坯加热温度，同时计算实际取向硅钢成分中γ‑相含量与温度之间的关系，依据计算结果设计取向硅钢的热轧工艺，可以保证20％～30％的γ‑相数量，成功解决取向硅钢热轧板晶粒粗大的问题。

冷轧中中低牌号的无取向硅钢多采用万能凸度轧机(Universal crown mill,UCM)生产,其板形好坏受制于UCM轧机板形调节手段的协调使用。为掌握UCM轧机的板形控制特点,建立基于二维变厚度有限元的辊系弹性变形和基于三维差分的轧件塑性变形的六辊轧机耦合模型,对UCM轧机的板形调控性能进行详尽的分析,包括工作辊和中间辊弯辊、中间辊窜辊的调控功效、辊间接触压力分布等。在此基础上,提出可用指导生产的板形控制策略,指出UCM轧机在横向厚差控制方面的不足。针对工业生产中UCM轧机轧制无取向硅钢横向厚差大的问题,在大量仿真计算的基础上,开发具有高次曲线函数的边部变凸度(Edge variable crown,EVC)的工作辊。采用该工作辊后,各种品种的无取向硅钢的横向厚差不大于10μm的百分比由24%提高到99%,横向厚差的均值小于6μm,远小于之前的13μm。 Medium-low grade non-oriented silicon steel is rolled often by universal crown mill(UCM) during cold rolling.Its shape quality is dependent on the coordinated control of several shape adjustment devices of UCM.In order to understand the shape control characteristics of UCM,coupling model of six-high rolling mill,based on two-dimensional varying thickness finite element rolls elastic deformation model and three-dimensional finite difference strip plastic deformation model,is setup for the detaile... 

研究了CSP工艺生产≤0.005%C-1.1%Si的2.2mm无取向电工钢热轧板在800～1000℃常化对0.5mm冷轧板840℃退火后组织和磁性能的影响。结果表明,热轧板常化温度升高,冷轧板退火后的再结晶晶粒增大,铁损降低,磁感增加;热轧板常化温度超过900℃,因第二相固溶而后弥散析出,退火后冷轧晶粒细化,铁损增加,因此该无取向电工钢热轧板最佳常化温度为900℃。 The effect of normalizing at 800-1000℃ of CSP produced plate(≤0.005%C-1.1%Si) on the microstructure and magnetic properties of downstream cold-rolled non-oriented electrical steel annealed at 840℃ was studied.Results show that with increasing normalizing temperature of hot-rolled material the recrystallized grain size of annealed sheet increases,iron loss reduced and magnetic induction increases.As normalizing temperature excesses 900℃,grain is refined and iron loss increases after annealing due... 

为开发高效电机用冷轧无取向电工钢,借助实验室薄板坯连铸连轧模拟设备及扫描电镜、透射电镜等检验手段研究了成分、组织、织构和析出物等对无取向电工钢磁性能的影响规律;结果表明:常化处理使组织均匀化并增加有利于磁性提高的织构组分;采用CSP流程开发的高效电机用无取向电工钢铁损平均值3.4 0 W/kg,磁感≥1.68 T。 In order to develop electrical steel for high efficiency motor,effect of components,microstructure,texture and precipitation on magnetic property of electrical steel are analyzed.From the result,normalizing treatment makes microstructure uniform and increases component of favorable texture.Iron loss of electrical steel developed by CSP line is 3.40W/kg and magnetic induction is more than 1.68T.