硅钢资料

研究了退火温度和退火时间对电沉积硅钢试样中的断面层组织、硅在试样中的分布情况、织构分布和磁性能的影响。结果表明:退火温度为1000℃、退火时间为210 min时得到的试样晶粒分布均匀、硅在试样中分布均匀、硅平均浓度为6.3715%(接近6.5%)。试样的织构分析及磁性能检测的结果表明,在较高温度下延长退火时间可增加{100}和{110}面织构,降低铁损,所得试样的磁性能较为良好。 The effect of annealing temperature and time on the microstructure, distribution of silicon,texture and magnetism of the high silicon steel prepared by electrodeposition was investigated. The results showed that after annealing at 1000℃ for 210 min, the mean grain size of steel was about 190 μm with a uniform grain size distribution, and the silicon is also uniformly distributed on the entire cross section with an average Si concentration 6.3715%(close to 6.5%); With the increasing annealing tim... 

利用光学显微镜、TEM和EBSD研究了退火温度对双辊连铸无取向硅钢再结晶组织的影响。结果表明,900℃退火后组织分布不均匀,有大量带状组织,平均晶粒尺寸29.5μm。提高退火温度,晶粒尺寸增大,组织均匀化程度增加,1050℃退火时,带状组织基本消失,平均晶粒尺寸42.2μm。 Effect of annealing temperature on recrystallization microstructure of non-oriented electrical steel produced by twin-roll casting process was investigated using OM,TEM and EBSD.The results show that the recrystallization microstructure is uneven because of many banded grains existing,average grain size is 29.5 μm.With annealing temperature increasing,the recrystallization grain size increases,microstructure becomes more homogeneous.When 1050 ℃ annealing,the banded structure almost disappear and... 

本申请涉及一种中温普通取向硅钢及其制备方法，依次包括加热、除鳞、控制轧制、控制冷却、卷取；加热、控制轧制、控制冷却、卷取过程中分别控制硅钢边部组织类型、边部脱碳宽度、边部晶粒大小，从而降低了后续冷轧工序的裂口率和提高了成材率。本申请提供的一种中温普通取向硅钢的制备方法，通过改善加热炉气氛、优化控制轧制工艺、优化控制冷却工艺以及调整板坯的装钢间距。制备后的硅钢边部硬度明显降低，在后续冷轧工序中，严重裂口率显著降低。

针对新日铁公开的相关专利,总结日本高强度无取向电工钢的研究进展,分析了各专利化学成分、生产工艺及产品性能的特点,指出固溶强化、细晶强化、析出强化、位错强化都有可能被用来提高无取向电工钢的强度。在高强度无取向电工钢的研发过程中,需要根据其具体用途确定目标性能,再采用合适的强化手段,从而实现力学性能、磁性能和生产性能之间的平衡。 Authors summarize the research progress of high strength non-oriented electrical steel in Japan by learning related patents brought into the public by Nippon Steel. Authors also analyze the characteristics of the chemical composition, production technology and properties of products in the patents and point out that any ones of solution strengthening method, fine-grain strengthening method, precipitation strengthening method or dislocations strengthening method may be used to improve the strengt... 

本实用新型提供了一种新型的去角硅钢片，包括硅钢片本体，所述硅钢片本体包括叠放区和防护区，所述硅钢片本体设有防护结构，所述防护结构包括叠放区上设有的多个均匀分布的降噪凹槽，所述防护区上下两端分别设有多个防护条，且两两防护条之间设为连接槽，每个所述防护条皆包括与硅钢片本体连接的防护层和减震层，所述防护区底部两侧分别设有减震柱，所述防护区中间设有贯穿孔，所述贯穿孔内设有绝缘螺栓。本实用新型能降低噪音和减少震动影响，从而避免使得变压器寿命及功能性降低。

通过对湿H2气氛下,相同退火温度、不同退火时间的CGO硅钢初次再结晶样品进行金相组织观察,并进行了EBSD微观织构分析,研究了CGO硅钢初次再结晶过程中的组织及再结晶织构演变行为。结果表明,在湿H2气氛下,820℃保温,CGO硅钢初次再结晶过程约在120 s时完成。随着退火时间的延长,γ面上{111}<112>织构含量逐渐减少,{111}<110>织构先减少后增多,随着再结晶的完成,部分{111}<112>取向晶粒向高斯{110}<001>取向转化的同时,也向{111}<110>取向转化,高斯{110}<001>织构含量逐渐增多。高斯取向晶粒较多是由{111}<112>取向晶粒转化而来,同时也证明了CGO硅钢高斯取向晶粒的二次再结晶异常长大生长机制为择优形核。 Microstructure development and texture evolution of conventional grain oriented silicon steel,which were annealed at same annealing temperature and different annealing time under wet H2 atmosphere,were investigated through metallographic observation and electron backscattered diffraction analyzing.The results show that the primary recrystallization finishes in 120 s at 820 ℃ under wet H2 atmosphere.With the extending of annealing time,{111}<112> texture decreases,{111}<110> texture d... 

晶界和{100}柱状晶在硅钢生产过程中对织构的遗传和演变有关键作用,因此本文利用晶体塑性有限元方法进行立方和旋转立方取向双晶在晶界不同位向时晶体取向演变的全场模拟。模拟显示,三种晶界位向下,晶界都具有诱发晶内产生S形状形变不均匀和缓解局部形变不均匀区取向转动的特点,立方和旋转立方取向双晶在带有剪切作用的轧制条件下都显示明显的取向稳定性。GB⊥RD(表示晶界垂直于轧向)晶界位向时,旋转立方取向晶粒优先在晶界中心位置发生取向转动,而立方取向则优先在远离晶界的端部发生取向转动。GB⊥TD(表示晶界垂直于横向)的晶界位向下,其晶界阻碍作用最小,双晶内产生的取向漫散度大,织构强度较低;除绕TD转动外,也具有复杂的绕RD、ND的取向转动。GB⊥ND(表示晶界垂直于法向)的晶界位向下,取向转动与GB⊥RD时相近,但有少量取向绕ND转动。 Grain boundaries and initial{100}columnar grains play a key role in the inheritance and evolution of texture in the production of electrical steels.In this paper,the crystal plasticity finite element method was used to simulate the grain orientation evolution of cube and rotated-cube oriented bicrystals when grain boundary was set to different orientations.It was shown that the grain boundary in three grain boundary orientations demonstrated the characteristics of inducing Sshape deformation inh... 

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. 

本实用新型公开了一种用于硅钢片的焊接工装夹具，它包括底座，所述底座包括底板（1）、固设于底板（1）顶表面上的左挡板（2）和右挡板（3），左挡板（2）与右挡板（3）之间固设有位于底板（1）上的挡条（4），挡条（4）的前端面上设置有止口（5），左挡板（2）的前端部铰接有压杆（6），所述底板（1）的顶表面上且位于其左侧放置有压条（7），底板（1）的顶表面上且位于其右侧固设有限位条（8），压条（7）与限位条（8）之间设置有多个紧靠于一起的定位块（9），每个定位块（9）均放置于底板（1）的顶表面上。本实用新型的有益效果是：结构紧凑、提高硅钢片组件焊接质量、提高硅钢片组件生产效率、操作简单。

本实用新型涉及电机技术领域，具体涉及一种具有低应力结构的硅钢片、转子和电机。包括硅钢片、开设在硅钢片上的磁钢槽和嵌设在所述磁钢槽内的磁钢组件，所述磁钢组件包括多个磁钢组，所述磁钢组包括靠近转子边缘的一对小永磁体和靠近转子内侧的一对大永磁体，所述硅钢片在转子轭部沿周向分布有径向开槽，且所述径向开槽从硅钢片的中心向边缘延伸。其通过在转子轭部沿周向分设置从硅钢片的中心向边缘延伸的径向开槽，能降低大永磁体左右两侧铁芯刚度差距，从而有效降低隔磁桥处的应力，防止磁钢和铁芯产生形变而断裂。其无需改变电机转子外圆结构，在保证转矩输出的前提下，防止高速旋转时带来空气啸叫声。

【作者】 杨佳直； ...

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 {...