硅钢资料

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。

一种超低硫硅钢冶炼工艺方法，属于炼钢技术领域。本发明公开了一种超低硫硅钢冶炼工艺方法，主要步骤包括KR铁水预处理—转炉冶炼—RH真空精炼—连铸保护浇注。在冶炼超低硫硅钢前，铁水包、转炉先处理1‑2炉低硫钢种，清洗设备；KR脱硫采用三次扒渣法，第一次扒除高炉出铁带渣，将铁水S含量脱至目标值后进行第二次扒渣，然后开通铁水包底吹，软吹后进行第三次扒渣，脱S后铁水S≤0.0005％，铁水兑入转炉后，热态下清理铁包结渣；转炉使用硫含量小于35ppm的低硫废钢，且废钢比不超过15％；RH和连铸过程均使用低硫合金及原辅料。本发明可使连铸结晶器钢水中S含量小于15ppm达标率由原来的48.6％左右提高至95％以上。

绝缘涂层可以有效提高硅钢片的耐蚀、耐腐、磁、绝缘等性能，因此取向硅钢涂装绝缘涂层是取向硅钢生产过程中重要的一环。本文对取向硅钢含铬无机绝缘涂层以及氮化铬涂层的性能优缺点进行了介绍，并对国内无机含铬取向硅钢绝缘涂层及氮化铬涂层的研究现状进行了综述。最后对未来含铬无机绝缘涂层的研发方向进行了展望。 Insulation coating can effectively improve the corrosion resistance of silicon steel sheet, such as corrosion, magnetic, insulation performance, thus oriented silicon steel insulation coating is the important part of oriented silicon steel production process. In this paper, the inorganic insulation coating oriented silicon steel containing chromium and chromium nitride coating performance advantages and disadvantages are introduced.In addition, the research status of insulation coating and chrom... 

【机构】 宝山钢铁股份有限公司规划与科技部； ...

基于TEAM(Testing Electromagnetic Analysis Methods)Problem 21基准模型和不同类型的磁化曲线Bm-Hm及Bm-Hb数据,分别在50 Hz至200 Hz的频率范围内计算了基准模型的硅钢叠片内的损耗及磁通,并考虑集肤效应和材料的电-磁各向异性的影响。数值计算结果与实验测量结果具有很好的一致性。提出的有限元建模方法和基于模拟结果的分析、结论有助于提高大型电力变压器的电磁设计的有效性。 Based on TEAM(Testing Electromagnetic Analysis Methods) Problem 21 standard model and the different B-H(such as Bm-Hm and Bm-Hb) curves,the iron loss and magnetic flux inside the grain-oriented(GO) silicon steel lamination are modeled under different frequency(from 50 Hz to 200 Hz) in this paper,And the influences of skin effect and electric-magnetic anisotropy on the numerical simulation results have been examined.The calculated and measured results with respect to the model are in good agreeme... 

本发明涉及无取向硅钢技术领域，具体提供了一种无取向硅钢的制备方法，对再结晶率为70‑90％、平均晶粒尺寸为10‑15μm、硬度HV为140‑170的硅钢半成品在温度为T＝(772～777)+2900×W(Si)的条件下进行去应力退火，制得无取向硅钢，晶粒在去应力退火过程中均匀长大，平均晶粒尺寸80μm以上，有效降低铁损，使磁性能大幅度提高，铁损P1.5/50≤3.5W/kg，磁感B5000≥1.72T，电磁性能优异，满足客户使用要求，此外，本发明采用的硬度HV为140‑170的硅钢半成品在冲压过程中不易变形，机械加工性能优良。

针对某厂DMS森吉米尔轧机生产无取向硅钢表面麻面缺陷的问题，根据生产实际，对其形成原因从乳化液及工作辊两方面因素进行了分析。结果表明：乳化液对麻面缺陷的产生有一定影响，但不是主要因素，主要原因是由于二十辊森吉米尔轧机工作辊辊径较小，轧制相同长度带钢轧辊运转周期较大，容易产生疲劳失效而导致。为此，提出通过调整冷轧工序成品轧制道次的压下率以减小轧制力，从而减小工作辊的磨损疲劳；通过对轧制乳化液浓度、温度的合理控制，以改善润滑效果、提高轧制速度，而进一步缓解轧辊疲劳的改进措施，使该钢厂无取向硅钢麻面缺陷发生率由原来的18%降至0.8%,带钢表面质量明显改善。 For the problem of surface pockmarks of non-oriented silicon steel strip produced by a DMS Sendzimir mill, based on the production practice, the formation causes were analyzed from two aspects of emulsion and working roll. The results show that the emulsion has a certain effect on the formation of surface pockmarks defects, but it is not the main factor. The main reason is that the working roll diameter of the 20-high Sendzimir mill is small, and the running period of the roll rolling the same l... 

介绍了CSP工艺生产无取向电工钢各工序的设备特点、采用的工艺控制手段和电工钢产品质量情况,结合生产实践证明了马钢CSP工艺开发的无取向电工钢产品丰富了薄板坯连铸连轧的品种结构,发挥了薄板坯连铸连轧生产无取向电工钢性能均一、稳定的特点。 The equipment characteristic,the process control method and the quality of non-orientated silicon steel by CSP process were introduced.Combined with the production situation,it is proved that production of non-orientated silicon steel developed on Masteel CSP line would enrich product structure of thin slab continuous casting and rolling,and it exerts stable performance of non-orientated silicon steel. 

采用光学显微镜、X射线衍射仪等分析了宁波钢铁有限公司生产的取向硅钢不同工序下的组织及织构演变规律。结果表明:铸坯经过热轧后,沿着厚度方向组织不均匀;一次冷轧并经脱碳退火后,组织由条状纤维状变成等轴状的初次再结晶晶粒,初次再结晶平均晶粒尺寸为18.17μm,织构主要以α织构和γ织构为主;在二次冷轧后,晶粒再次被压缩,转变为纤维状,织构主要为γ织构;经过高温退火后,发生二次再结晶,晶粒异常长大,晶粒尺寸达到厘米级,织构成分为单一且锋锐的Goss织构。 The microstructure and texture evolution of oriented silicon steel produced by Ningbo Iron and Steel Co.,Ltd.were analyzed by optical microscope and X-ray diffraction.The results showed that the microstructure of the slab was inhomogenous along the thickness direction after hot rolling.After first cold rolling and decarburizing annealing,the microstructure changed from strip fibrous to equiaxed primary recrystallized grains,and the average grain size of the primary recrystallization microstructu... 

本实用新型公开了一种取向电工钢的多项性能检测装置，涉及取向电工钢技术领域，为解决检测装置在对取向电工钢涂层性能检测时较为繁杂，增加了检测难度，检测的误差增加，且检测装置的性能检测较为单一，检测效果不佳的问题。所述底座的上方设置有安装架和吊梁架，所述安装架上设置有输料辊，输料辊设置有两个，两个所述输料辊之间设置有输送带，所述吊梁架的下方设置有弹性胶带，所述弹性胶带上方的两侧均设置有第三电动伸缩杆，且第三电动伸缩杆的两端分别与吊梁架和弹性胶带通过螺钉连接，所述弹性胶带的一侧设置有检测架，所述检测架上设置有激光灯、第一滤光片、接收器、第二滤光片和聚光片，所述激光灯和第一滤光片设置在弹性胶带的上方。

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. 

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...