硅钢资料

本发明涉及一种高性能取向硅钢冷轧工艺，具体涉及取向硅钢制造技术领域。本发明的冷轧工艺包括一次冷轧和二次冷轧，其中，取向硅钢热轧板厚度在2.0～3.0mm，一次冷轧轧制采用4或5道次轧制，轧至厚度0.60～0.62mm，轧制温度为100℃～105℃；二次冷轧轧制采用2道次，轧至厚度0.24～0.26mm，轧制温度为95℃～100℃。本发明通过对一次冷轧和二次冷轧中各道次的压下率、轧制张力、轧制速度、轧制温度进行优化设计，从而能够进一步优化织构，确保二次冷轧板高斯织构含量在0.8～1.5％，且轧制稳定性高，进而有效保证了所得取向硅钢的磁性能。

本申请公开了一种低铝无取向硅钢结晶器液面波动的控制方法，包括：步骤1：KR脱硫，脱硫后铁水硫含量≤0.0015%；步骤2：转炉吹炼，转炉出钢后钢包顶渣厚度≤30mm；步骤3：RH真空处理，RH脱碳结束后，加入铝粒脱氧后钢液循环3‑5min，提升气体流量至0.8‑1.0m3/（h·t）；随后加入合金进行脱氧合金化，提升气体流量至0.5‑0.7m3/（h·t）；步骤4：连续浇注，长水口氩气流量150‑200L/min，连铸塞棒氩气流量5‑10L/min，背压≥0.05bar。本申请的控制方法控制结晶器液面波动≤±1.5mm的比例稳定在90%以上。

采用化学气相沉积(CVD)渗硅处理工艺连续制备6.5%Si高硅钢,具有优质的软磁性能,通过理论研究化学反应并且用简单的试验设备做进一步的探讨。根据试验的结果对连续制备6.5%Si高硅钢的CVD工艺构造提出全面、有效的建议,实现制备6.5%Si高硅钢系统。 CVD method for continuously manufacturing 6.5%Si Steel Sheet has excellent soft magnetic.Carried out a theoretical study of related chemical reaction and performing basic research with a simple test apparatus.Based on the results,finally proposed an overall process configuration to realize such a production-CVD method for continuously manufacturing 6.5%Si Steel Sheet. 

本发明提供退火隔离剂的制备方法以及退火隔离剂和方向性电磁钢板。由该方法得到的退火隔离剂纯度高、分散性以及密接强度优异，可以在方向性电磁钢板表面形成均匀致密的镁橄榄石层。退火隔离剂的制备方法，其包括：工序(1)：将氧化镁和铵盐溶液混合并反应，制备镁盐溶液和氨，然后使精制的镁盐溶液与氨反应而得到氢氧化镁；工序(2)：将得到的氢氧化镁的一部分在155～230℃下高温熟化，并且将得到的氢氧化镁的另一部分在10～100℃下低温熟化；工序(3)：将在上述各条件下熟化的氢氧化镁混合、烧成，得到氧化镁用于退火隔离剂。

本实用新型公开一种电机加工硅钢片上料装置，包括上料底座，上料底座的顶部固定连接有若干个硅钢片卷料限位柱，上述装置还包括设置在上料底座上方的上料顶座，上料顶座的底部固定连接有若干个与硅钢片卷料限位柱配合的定位柱，上料底座与上料顶座之间滑动连接有两个对称设置的滑动螺杆，滑动螺杆滑动连接所述上料顶座，滑动螺杆的上端螺纹连接有装配螺母，上料底座的左右侧壁部位均装配有第一折形板，上料顶座左右侧壁部位均装配有与第一折形板对称设置的第二折形板，第一折形板与第二折形板之间装配有悬吊组件。采用上述方式不仅实现将若干个硅钢片卷料采用一个夹持定位设备进行夹持定位，且上述装置部件设计安全上料。

本发明涉及一种电力变压器取向硅钢片自动化加工系统，包括支撑台、支撑板、传动机构、堆叠机构和调整机构，所述的支撑台上端左右两侧对称设置有支撑板，支撑板相对面设置有传动机构，支撑台上端中部设置有堆叠机构，支撑台上端面上且位于堆叠机构左右两侧对称设置有调整机构；本发明能解决以下问题：本发明通过传动机构对硅钢片前后移动，通过推动支链对硅钢片移位、放置、拿取，增加对硅钢片进行自动化堆叠效果；通过调整机构对硅钢片X方向面和Y方向面进行感应式自动调整；通过堆叠机构对硅钢片二次调整，避免硅钢片发生移动，从而使硅钢片堆叠的更加整齐，并且节约制造成本。

为探究铬、锰元素及退火温度对高强无取向硅钢性能的影响规律,借助OM、SEM、EBSD与万能拉伸试验机等分析不同制造工艺下3组不同含量铬、锰元素的无取向硅钢热轧、常化及退火处理后组织与性能。结果表明,试验钢热轧后组织不均匀,心部为沿轧向分布纤维状组织,边部为少量再结晶晶粒,常化处理能显著改善热轧板组织均匀性,消除热轧板中心部位的纤维状组织。经冷轧及退火后得到多边形铁素体晶粒,其中960℃退火,晶粒尺寸偏大,有利织构{100}组分体积分数减少,不利织构{111}组分体积分数增加,成分为0.2Mn-1Cr的1号试验钢960℃退火后铁损最大,磁感强度偏小;成分为0.5Mn-1Cr的2号试验钢930℃退火后,磁性能与强度等综合性能最佳,工频铁损P_1.5/50为2.41W/kg,高频铁损P_1.0/400为17.36W/kg,磁感应强度B_{5 000}为1.638T,抗拉强度为685MPa。 In order to study the effect of Cr,Mn and annealing temperature on the properties of high-strength non-oriented silicon steel,the microstructure and properties of three groups of non-oriented silicon steel with different Cr,Mn content under different manufacturing processes were analyzed by means of OM,SEM,EBSD and universal tensile tester.The results show that the structure of experimental steel is not uniform after hot rolling,and the core is distributed in fibrous structure along the rolling ... 

针对宝钢硅钢常化退火过程中产生的退火炉辊印缺陷问题,通过实际生产的大数据与产品质量问题相结合,将数据挖掘、数据分析方法应用到实际,一定程度上解决了现场实际生产中的痛点,为现场生产提供决策支撑,避免了以前通过人工识别判定存在疏漏和无法定量判断的问题,形成了一套具有鲁棒性和可操作性的钢铁生产过程数据分析方法。通过智慧决策系统平台获取实际生产和表检仪数据,基于Pearson相关系数算法进行变量挑选和特征工程,并应用随机森林算法对数据建立分类预测模型,实现了质量问题的溯源和监控,通过数据量化预测了炉辊印缺陷是否可通过轧制消除的质量问题,识别准确率达到96.43%。 In views of the normalizing annealing furnace roll marks problem occurred in the process of normalizing annealing of silicon steel in Baosteel,by combining big data from actual production with product quality problems,data mining and data analysis methods were applied to actual production to solve the pain points and provide decision support,a robust and practical data analysis method for the steel production process has been developed,which avoided the previous problems of omission and non-quan... 

冷轧无取向硅钢是高技术含量、高附加值产品,工艺复杂,生产周期长,过程控制难度大,被誉为钢铁产品中的\"工艺品\"。热轧生产工艺又是无取向硅钢生产的重中之重,直接决定了硅钢的铁损和电磁性等多项指标。 Cold rolled non-oriented silicon steel is high technology content 、high added value product. Its process is complex, its production cycle is of length, and its process control is difficult, which is known as the iron and steel products \" Arts and crafts\". Hot rolling production process is the top priority of non-oriented silicon steel, which directly determines iron loss of the silicon steel and electromagnetic property,as well as other many index. 

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,... 

借助电子背散射(EBSD)技术对AlN为主抑制剂的Hi-B取向硅钢常化工艺的中间冷却制度进行了研究。结果表明:常化后试样均发生了完全再结晶,在60℃/s冷速下组织最均匀;在合适的冷却制度下常化板表层保留了强的Goss织构,它深入到1/4厚度处,并且形成对Goss织构有利的强{554}<225>织构。 The intermediate cooling system of Hi-B oriented silicon steel with AlN main inhibitor in normalizing process was studied by means of electron back diffraction(EBSD) technique. The results show that:the specimens after normalizing are fully recrystallization, and the microstructure is most uniform under the intermediate cooling rate of 60℃/s; under suitable cooling system, normalized plate surface retains strong Goss texture, it penetrates into the 1/4 thickness of the plate and forming strong {... 

以构建高磁感、低铁损、免轧制高硅电工钢铁芯为出发点,提出采用单辊甩带制备非晶铁硅合金薄带、微氧化法在铁硅合金粉末表面包覆高电阻率铁硅氧化物薄膜制备核壳异质结构高硅电工钢纳米粉末、放电等离子烧结快速成形制备颗粒间绝缘的高硅电工钢铁芯。研究了不同氧化包覆时间对SPS烧结试样密度、物相组成、微观结构和静磁性能的影响。研究表明,在氧化包覆5h烧结温度800℃工艺条件下,制备的6.5%Si高硅电工钢铁芯的静磁性能最佳,饱和磁化强度为128.84A.m2/kg、矫顽力为2.25kA/m、剩磁为3.47A.m2/kg。其饱和磁化强度与粉末压延法制备的高硅钢相当,但矫顽力降低了1/3。 The paper takes preparation 6.5%Si steel with high induction,low core loss and removing rolling as the starting point,amorphous Fe-Si ribbons was synthesized by melt spinning method,6.5%Si steel nanopowders with high resietivity core shell structure was prepared by the slight oxidation process and 6.5% Si steel iron core with evaluating internal was sintered by spark plasma sintering process(SPS).The essay focuses studies the effects of different oxidation cladding time on sample density,phase c...