硅钢资料

介绍了攀钢冶炼电工钢过程硫含量变化以及过程回硫、增硫情况,采取针对性措施,如:提高铁水装入量、转炉采用石英砂代替复合造渣剂造渣、RH脱硫等,降低钢中硫含量。结果表明:采取相应措施后,电工钢炼成率大幅提高,成品w[S]≤0.008%的比例由改进前的62%提高到92.4%,取得了明显的冶金效果。 The resulfurization and the change of sulphur content in production of electrical steel is analyzed.The targeted measures have been taken,such as increase the loaded quantity of liquid iron,quartz sand replaces the composite slagging agent in the converter and RH desulfurization to decrease the sulphur content of the steel.The result shows,after the measures have been taken,the finished product ratio of electrical steel increase a lot.The ratio of sulfur content of finished product no more than ... 

一种电工钢切片用导向装置，涉及电工钢生产装置技术领域，包括导向台、支撑腿、安装块、转轴、辊体、电动机、安装板、滑杆、移动板和导向板；支撑腿设置在导向台底部；安装块设置有两个，两个安装块均设置在导向台横向一侧，两个安装块沿纵向分布；转轴转动设置在两个安装块之间；辊体设置在转轴上，辊体位于两个安装块之间，辊体位于导向台上方；电动机设置在安装块上，电动机与转轴驱动连接；安装板设置有两个，两个安装板分别设置在导向台纵向两侧上部；滑杆设置有两个，两个滑杆均设置在两个安装板之间，两个滑杆沿横向分布。本实用新型能够在电工钢的钢带切片之前进行导向限位工步，使得电工钢切割时不会被切割歪，切片的精度高。

本发明公开了一种低碳低硅钢铝质复合脱氧剂及其制备和使用方法，属于钢铁冶金技术领域。本发明为改善低碳低硅钢种可浇性差、夹杂降级率高的问题，提供了一种低碳低硅钢铝质复合脱氧剂，其包括：金属铝：50～60％；7Al2O3·12CaO预熔渣：10～20％，钝化CaO：10％～20％，Fe：10～20％，其余为微量杂质元素。本发明通过深入研究铝脱氧后钢中夹杂物的行为，提供了一种低碳低硅钢铝质复合脱氧剂，通过在转炉出钢过程加入该脱氧剂，能够有效降低钢中大型夹杂比例、对夹杂物改性，在不延长精炼时间的情况下降低夹杂物总量，改善目前此类钢种生产过程中存在的可浇性差，夹杂降级率高的问题。

本发明公开一种高牌号无取向硅钢的轧制方法，用于控制森基米尔二十辊轧机对原料带钢进行轧制，所述方法包括：根据所述原料带钢的规格参数，确定所述森基米尔二十辊轧机的第一中间辊的辊型及第二中间辊的辊型；根据所述原料带钢的合金含量及所述规格参数，确定所述第一中间辊的有效平面量；根据所述规格参数，确定所述森基米尔二十辊轧机的径向调整机构的凸度值；根据所述合金含量，设定所述森基米尔二十辊轧机进行轧制时的负荷分配和张力；按照所设定的负荷分配和张力分配对所述原料带钢进行轧制，且在轧制过程中以预设乳化液流量进行喷淋，以制得成品。本发明可减少高牌号无取向硅钢在轧制过程中发生脆性断裂，提高轧制的稳定性及生产效率。

采用SEM、EDS和XRD对不同加热温度下W470连铸坯氧化铁皮的微观形貌及相结构进行研究。结果表明,W470氧化铁皮难以除去的原因是氧化铁皮熔化,液相包裹着FeO,凝固时发生共晶反应,生成FeO/Fe2SiO4共晶混合物,并深嵌入基体。降低加热炉的加热温度,使连铸坯全程在FeO/Fe2SiO4共晶混合物熔点(1177℃)以下加热,可降低氧化铁皮与基体的结合力,能够有效解决W470除鳞困难问题。 The microstructure and phase structure of iron scale of W470 continuous casting billet at different heating temperatures were investigated by SEM,EDS,and XRD.The results show that the reason why the iron scale of W470 removes hardly is that iron scale is melted and the FeO is surrounded by the liquid phase,which forms FeO / Fe2SiO4eutectic mixture and is embedded into the matrix after solidification.Lowering the heating temperature and keeping the continuous casting billet heating under the melt... 

通过实验室25 kg真空感应炉冶炼和锻轧研究了0.26%～0.95%Al含量对0.5 mm 2.2%Si无取向硅钢冷轧板组织、织构和磁性能的影响。试验结果表明,0.26%～0.81%Al含量时,随钢中Al含量的增加,成品退火钢板的晶粒尺寸增加同时铁损减少;当Al含量大于0.81%时,随Al含量增加,钢板的晶粒尺寸减小,同时铁损增加。Al含量对硅钢板磁感的影响没有明显的规律。2.2%Si无取向硅钢的合适Al含量为0.48%～0.81%。 The effect of 0.26%～0.95%Al content on structure,texture and magnetic performance of 0.5 mm cold rolled sheet of 2.2%Si non-oriented silicon steel has been studied by a 25 kg vacuum induction furnace smelting,and forging -rolling in laboratory.Results show that as 0.26%～0.81%Al,with increasing Al content in steel the grain size of annealed finished sheet increases while iron loss of sheet decreases,and as Al content in steel is more than 0.81%,the grain size of sheet decreases while iron loss in... 

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. 

运用EBSD和光学显微镜,研究了0.25%~0.45%Cu对无取向电工钢热轧板显微组织,成品板显微组织、织构和磁性能的影响。实验结果表明:卷取过程中Cu元素在热轧板表层的偏聚作用显著阻碍了热轧板表层再结晶晶粒长大,导致热轧板表层晶粒尺寸随着Cu含量增加而逐渐较小,但热轧板中间晶粒尺寸变化不大。同时发现Cu元素能够明显改善织构类型,使有利织构组分增加,不利织构组分减少,同时减弱织构强度。从实验结果可知0.35%Cu能够显著改善电工钢的磁性能,铁损P15/50最低达到4.1 W/kg,磁感B50最高值达到1.8 T。 Effects of high content Cu on microstructure of hot rolled plates and microstructure,texture and magnetic properties of annealed finish product plates of non-oriented electrical steel were examined by means of EBSD technique and optical microscope. The results show that surface segregation of Cu significantly hindered recrystallized grain growth of surface layer in hot rolled plate during the coiling,as a result,the surface grain sizes of the hot-rohed plates decrease with the increase of Cu con... 

概述了无抑制剂法生产取向电工钢的特性及其用途;总结无抑制剂生产取向电工钢的原理及工艺方案.重点讨论了成分方案,即元素对磁性能的影响和最终高温退火方案对二次再结晶的影响.研究结果表明,无抑制剂取向硅钢化学成分范围没有普通取向硅钢和高磁感取向硅钢严格,提高了成材率;最终高温退火决定了二次再结晶的好坏,从而最终决定成品磁性能,最佳的高温退火温度在850～950℃之间. This article provides an overview on the characteristics and uses of inhibitorless process producing grain-oriented electrical steels.The mechanism of inhibitorless process and technology programs were discussed.The results show that the chemical composition and final annealing were determined according to magnetic properties.The inhibitor-free grain oriented silicon steel has loose range of chemical composition;Secondary recrystallization occurs mainly in the final annealing and the best anneal... 

本发明属于变压器铁芯生产加工技术领域，具体涉及一种硅钢常化用缝合设备，包括动力机构、钢带送料机构、固定座和移动座，移动座上开有多个凹槽和设有冲压刀；固定座上开有凹腔，凹腔内滑动连接有凸模板，凸模板上设有与凹槽配合的凸块；钢带送料机构包括放料辊、设在放料辊上的钢带卷和送料部，送料部用于输送钢带并使钢带依次穿过硅钢片上的各个开口。动力机构包括动力部、传动筒、均与传动筒连通的固定筒和中间筒。本方案中，在硅钢片的叠合处开设了桥型孔，利用钢带穿过硅钢片叠合处的桥型孔，相当于利用钢带将硅钢片缝合在一起，这样设置能够较好将不同的硅钢片连接成一体。

研究了热处理工艺(退火温度、保温时间、冷却方式)对含Mn的Fe-6.5wt%Si高硅钢热轧带的显微组织及硬度的影响。结果表明,退火温度对Fe-6.5wt%Si合金的组织和显微硬度均有较大影响,随退火温度升高,平均晶粒尺寸和显微硬度均明显增大。小于1 h退火时,晶粒长大缓慢,而长时间(>1 h)退火时,一些次表层晶粒将发生异常长大。水冷组织比空冷组织略细小,但水冷显著降低了显微硬度。Mn含量提高能抑制850℃退火时晶粒的长大,并且促进退火后高硅钢的软化。 The influences of heat treatment process(annealing temperature,heating time,cooling methods) on the microstructure and microhardness of Fe-6.5wt%Si high silicon steel containing manganese for hot rolled strip were studied.The results show that the annealing temperature has a great effect on the microstructure and microhardness of Fe-6.5wt%Si alloy,and as the annealing temperature increases,the average grain sizes and microhardness will significantly increase.When annealing time for less than 1 h... 

针对宝钢集团、日本新日铁住金和JFE公司公开的相关专利等资料,总结了国内外高强度无取向电工钢的研究进展,分析了不同电工钢的化学成分、生产工艺及产品性能,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,并阐述了四种强化方式的优缺点;指出在高强度无取向电工钢的研发过程中,需根据其具体用途确定目标性能,再采用合适的强化手段,最终实现力学性能、磁性能和生产性能之间的平衡。 The research progress of high strength non-oriented electrical steels at home and abroad is summarized according to related patents brought into the public by Baosteel,Nippon Steel & Sumitomo Metal corporation and JFE corporation.The characteristics of chemical composition,production technology and properties of products in the patents are analyzed.Each of solution strengthening method,fine-grain strengthening method, precipitation strengthening method or dislocations strengthening method ma...