硅钢资料

本发明揭示了一种无取向硅钢及其生产方法。该无取向硅钢的化学成分：Si:2.95%~3.15%，Al:0.75%~0.95%，Si+2Al:4.6%~4.9%，Mn:0.5%~0.7%，Sn:0.03%~0.04%，Cu≤0.03%，Cr≤0.03%，Ni≤0.03%，Nb≤0.004%，V≤0.004%，Ti≤0.004%，C≤0.0025%，P≤0.015%，S≤0.0015%，N≤0.004%，余量铁；Mn/S≥380，Al/N≥200；无取向硅钢的再结晶晶粒尺寸50~80μm。本发明在保证磁性能的同时，提高了强度，解决了现有技术所存在的磁性能和强度的兼顾问题。

采用拉伸试验和显微组织观测的方法确定了GTN损伤模型中的9个损伤参数,运用GTN损伤模型对冷轧硅钢薄板边部缺陷的扩展及边裂的产生进行了有限元模拟,并与预置缺口的钢板轧制试验进行对比。结果表明:轧制过程中边部缺陷是造成钢板边部裂纹萌生和扩展的一个重要原因,GTN损伤模型可用来预测含边部缺陷硅钢薄板在冷轧过程中边裂的产生;预测结果与试验结果基本一致。 The crack initiation and propagation of silicon steel strip with edge defect during cold rolling process was studied by using GTN damage model in this paper.Nine damage parameters in GTN model were identified by tensile testing and microstructure observing,and then the FE simulation of edge defect evolution of silicon steel strip during rolling process was conducted on the base of GTN damage model,and then the results were compared with rolling experimental results.The results show that the edge... 

以不断增长的薄板坯流程为背景,与传统流程对比分析了薄板坯流程无取向电工钢热轧晶粒组织特征;以50W800和50W1300钢为典型实例,探讨了两种流程下成品板晶粒组织、织构、磁性能及其磁时效行为的基体差异和相关原理。研究表明,薄板坯流程热轧板组织较粗大,有利于在成品板中获得粗大的晶粒和有利的织构,从而得到较低的铁损和较高的磁感。然而,薄板坯流程会造成第二相粒子的细小弥散分布与不充分析出,容易因磁时效而使磁性能恶化。 Based on the rapid development of compact strip production(CSP) processing,the characteristics of hot band grain structure produced by CSP processing were analyzed in comparison with those of conventional technology.The basic differences in grain size,texture,magnetic properties and the magnetic aging behaviors of the final sheet products produced by the two processing technologies and the corresponding principles were discussed,while steel 50W800 and 50W1300 were taken as examples.It is indicat... 

【作者】 朱凤泉； 黄生银； ...

【作者】 O.M.Гбанов； A.E.Чеглов； ...

研究稀土Ce的添加对含Sn高磁感无取向电工钢磁性能及夹杂物的影响。对比分析了两种成分钢的磁性能以及各过程工艺条件下夹杂物种类和分布情况。结果表明,在含Sn高磁感无取向电工钢中加入稀土元素Ce可以粗化夹杂物,提高成品晶粒的均匀性,有效降低铁损;同时Ce的添加不影响Sn元素提高磁感的效果,磁感保持不变。 Effect of Ce on magnetic properties and inclusion of Sn-bearing high permeability non-oriented electrical steel was investigated. A comparative analysis of the magnetic properties and the types and distributions of inclusion in the two sheets with different composition shows that the addition of Ce to the Sn-bearing high permeability non-oriented electrical steel can coarse the inclusion,improve the homogeneity of the finished grain and effectively decrease the core loss. Also,the addition of Ce... 

本实用新型涉及卷绕机技术领域，且公开了一种硅钢片卷绕机连接调节机构，包括两个支撑板，两个支撑板的顶部之间水平固定连接有横板，两个支撑板的下端均开设有安装口，两个安装口之间水平设有安装板，安装板的底部两端均垂直连接有驱动液压缸，驱动液压缸的底部分别连接在对应位置处的安装口内；安装板的一侧开设有条形口，条形口内水平连接有若干支撑杆，条形口的两端底部均垂直连接有固定板，两个固定板之间水平连接有若干横杆，横杆上沿长度方向等距设有若干移动座，移动座的顶部垂直连接有分隔板。本实用新型设置的分隔板可对硅钢带进行分隔，且设置的剪切刀向下对硅钢带进行切割，提高了装置的实用性。

为了确保硅钢铬酸盐涂料的环保性,需要严格控制涂料的固化工艺,保证涂料固化过程中涂料中的六价铬充分转化为三价铬。对涂料及原料进行热重分析(TG)及差示扫描量热法分析(DSC)。结果表明,MgO与铬酐混合转化为MgCrO4,使六价铬稳定性增强,其中大部分Cr6+转变为Cr3+发生在620~700℃,在450~500℃高于铬酐发生大量失重,因此必须加入还原剂保证涂料中六价铬被充分还原;超过360℃后树脂会发生分解,因此实际板温不能超过360℃;加入了还原剂的整体涂料的失重温度区间主要在260~320℃,因此涂料固化时钢板的实际温度最佳区间为320~360℃。 Because of the silicon steel chromate coating’s environmental requirements,the paint curing process must be controlled strictly to ensure all Cr( Ⅵ) transforms to Cr( Ⅲ). The TG and DSC analyses of the paint are studied. The reaction of MgO and CrO3 would generate MgCrO4,enhancing the stability of Cr( Ⅵ). The most r( Ⅵ) in MgCrO4 changes to Cr( Ⅲ) at 620-700 ℃,while the CrO3 has a large weight loss at 450-500 ℃. The reductant must be added in the paint to make sure the Cr( Ⅵ) could transform suf... 

聚焦无取向硅钢产品标准,从电磁性能、表面性能、机械性能以及尺寸公差与边部质量等维度对国际标准IEC、EN、JIS、ASTM以及国标GB进行了分析研究。分析得出,各类标准在电磁性能方面要求基本一致;ASTM标准的机械性能要求有别于其他几个标准。 In this paper,non-oriented silicon steel standards of EN,JIS,GB and ASTM were compared and analyzed. It is showed that,all types of standards in electromagnetic performance requirements are basically the same. Surface properties in ASTM standard are expressed in the most detailed. The mechanical properties requirements of the standards,except for ASTM,are basically the same. 

根据本发明的一个实施例的粘接涂料组合物，其包含聚乙烯丙烯酸酯，所述聚乙烯丙烯酸酯包含由以下化学式1表示的重复单元和由以下化学式2表示的重复单元，所述聚乙烯丙烯酸酯包含65至90重量％的由以下化学式1表示的重复单元、10至35重量％的由以下化学式2表示的重复单元。

本发明公开了一种高牌号硅钢板的激光焊接方法，目的在于改善常化工艺前焊接焊缝和常化工艺后焊接焊缝质量，避免产生焊接缺陷及裂纹，降低连续生产过程中硅钢板的断带率，提高生产效率。所用硅钢板的Si含量为1.75－3.45％，均为质量比，厚度为1.85－2.90mm。本方法的特征在于根据前后两卷高牌号硅钢板的总含Si量(Si1+Si2)和总厚度(h1+h2)调整激光焊接的焊接功率和后加热退火工艺的加热退火功率，实现单面拼接焊。本方法根据钢材总含Si量及总厚度的不同，给出了具体的激光焊接工艺参数。采用该方法，可以改善焊缝显微组织，降低焊缝区域与母材区域的硬度差，减少焊接应力，提高焊缝质量；此外还具有焊接耗能少的优点。

利用光学显微镜（OM）和扫描电镜（SEM）研究了不同稀土Ce含量的50W470无取向硅钢的铸坯、热轧板和冷轧退火板的宏观和微观组织，并采用磁性能测试仪测定其磁性能。结果表明：当稀土Ce的加入量从0增加到66×10^-6（质量分数）时，铸坯的柱状晶平均宽度从3.82 mm减小到3.24 mm,等轴晶率从43.1%增加到51.3%;热轧板的平均晶粒尺寸逐渐增加，从26.2μm增加到33.3μm,再结晶百分数从24%增加到37%;退火板的平均晶粒尺寸从36.2μm增加到39.3μm;磁性能测试表明，微观组织的变化有利于50W470无取向硅钢铁损降低和磁感提高。 Macro-structure and microstructure of as-cast plate, hot rolled plate and cold rolled annealed plate of 50 W470 non-oriented silicon steel with different rare earth Ce content was studied by optical microscope（OM） and scanning electron microscopy（SEM）, and their magnetic properties were measured by magnetic property tester. The results show that when the addition amount of rare earth Ce increases from 0 to 66×10^-6（mass fraction）, the average width of columnar crystal of the as-cast pl...