硅钢资料

介绍了国内、外电工钢极薄带的生产现状及市场应用的情况,以及典型生产企业的生产规模、产品性能和应用领域,指出扩大高牌号无取向电工钢生产、提高产品质量是目前电工钢发展的迫切要求。 The production situation and market application of ultra thin electrical steel strip at home and abroad were described.The production capability,product property and application area of typical corporation were introduced.The results indicate that the urgency needed of electrical steel development is expanding high-grade non-oriented electrical steel production and improving products quality at present. 

本发明公开了一种消除取向硅钢单边浪缺陷的方法，其包括如下步骤：1)、制作专用盖板；所述专用盖板包括环形板，所述环形板外边缘设有多个剪开处；2)、将待装炉的取向硅钢钢卷吊运至高温退火炉炉台；3)、将专用盖板铺于取向硅钢钢卷上端面外圈；4)、将专用盖板上的各剪开处向下弯折，勾住取向硅钢钢卷外沿；5)、扣上内罩，内罩底边砂封；6)、钢卷进炉，完成高温退火过程。本发明能有效保护钢卷边部，防止钢卷上端面翻边；该方法还能将钢卷内部水分排出，避免钢带表面氧化。

【作者】 谌剑； ...

采用X-射线衍射分析技术测定了取向硅钢热轧板在不同压下率下不同厚度处的织构。结果表明,在压下率低于80%的情况下,几乎所有试样的不同厚度处的织构均为旋转立方织构类型{100}<011>,但不同压下率、不同厚度处的织构强度存在很大差异;在压下率大于80%的情况下,不同试样的不同厚度处的织构类型发生了变化,其织构类型为旋转立方织构或高斯织构{011}<100>,且当织构类型为旋转立方织构时,织构强度存在很大差异,而当织构类型为高斯织构时,织构强度差异相对较小。 The texture of the grain oriented silicon steel hot rolled plate at different compressibility has been measured.The experimental results have shown that the texture of all samples at different thickness is {100}<011> when the compressibility is below 80%,and its intensity at different compressibility and thickness is difference.The texture of all samples at different thickness is variable when the compressibility is above 80%,it is {100}<011> or {011}<100>,and the intensity of ... 

本发明公开了一种高牌号硅钢的穿带激光焊接方法，包括：将焊缝中硅含量降低到Si焊＜1.9%。采用激光+填丝焊接，填丝ER50‑6碳钢焊丝；根据焊缝截面积和激光焊接速度；激光填丝焊接时，激光线能量应足够大，达到填丝在熔池中充分混合，均匀分布，不至于填丝的成分浮在熔池的上半部分。采用此方法使焊缝组织从粗大铁素体变成细小、致密的无碳贝氏体，晶内沉淀相和晶间脆性相相对大幅减少，提高了焊缝韧性和成形性能，保证了高硅硅钢带的穿带焊接和连续生产。

本文中简要介绍了武汉钢铁有限公司采用薄板坯连铸连轧CSP(compact strip production, CSP)工艺生产中低牌号无取向硅钢的实践情况.CSP工艺生产的硅钢具有成品磁性均匀、板形好的优势，但是在利用该技术生产中低牌号无取向硅钢时，常存在成品板表面瓦楞状缺陷严重、连铸生产效率低等问题.通过优化炼钢成分、热轧等相关工艺，可消除热轧板厚度方向中心的粗大形变组织，从源头上避免了粗大{100}<011>纤维组织的出现，消除了瓦楞状缺陷；通过提升冶炼效率和控制钢中夹杂物总量，可优化隧道炉的加热温度与在炉时间，大幅度提升了连铸生产效率，实现了中低牌号无取向硅钢的批量稳定制造，使CSP产线成为中低牌号无取向硅钢热轧板原料的主要供给生产线.如何进一步提升钢水纯洁度、提高连铸生产效率、降低生产成本，以及挖掘该产线生产薄带钢的技术优点，是未来工作的重点. This paper briefly introduces the practice of producing medium and low grade non oriented silicon steel(NGO) with CSP(compact strip production, CSP)technology in Wuhan Iron and Steel Co., Ltd.. This technology has the inherent advantages of uniform magnetic properties and good shape for silicon steel finished strip. However, in the actual production process, there are serious corrugated defects on the surface of silicon steel finished strip, and production efficiency of continuous casting is low... 

本发明提供了一种提高无取向硅钢铁损均匀性的方法，所述方法包括，对无取向硅钢板坯进行加热和粗轧，获得中间坯；将所述中间坯精轧后以620‑750℃的温度进行卷取，获得热轧卷；将所述热轧卷进行酸洗和冷轧，获得冷轧卷；对所述冷轧卷升温至900‑960℃的温度保温50‑90s的时间，进行退火，获得铁损均匀性良好的无取向硅钢。本发明提供的方法，其铁损P1.0/50为1.379‑2.721W/kg，P1.5/50为2.751‑5.438W/kg，B5000为1.706‑1.741T，在线P1.0/50极差为0.062‑0.188W/kg，无取向硅钢的铁损更均匀。

本发明公开了一种改善取向硅钢内外圈和边部表面质量的方法及环形炉，在一次冷轧工序中，采用错边卷曲，卷曲张力按渐变张力进行控制且头尾的卷曲张力大、中部的卷曲张力小，MgO的涂覆量与卷曲张力同步变化且头尾的涂覆量少、中部的涂覆量多；在高温退火工序中，环形炉的底板上增设一层由若干扇形块绕中心均布形成的垫层，相邻扇形块之间存在空隙，环形炉的内罩内钢卷的上端加盖通风式的盖板，盖板底面的内圈间隙伸入钢卷孔、外圈间隙套在钢卷上、中间通过绕中心均布的导流槽支撑在钢卷端面上，导流槽呈螺旋状且入口与盖板内圈上的开口一一对应连通、出口延伸至盖板底面外圈内侧。本发明可显著减少表面缺陷，明显改善表面质量和磁性，操作容易。

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. 

利用X-射线衍射织构分析和线形分析技术测定了交叉轧制双取向硅钢在制备工艺各阶段的织构及微结构,进而探讨了立方织构({100}<001>)的形成过程。通过对实验结果的分析可知,二次冷轧和交叉轧制工艺为立方织构提供了内能优势和有利的形变织构,而低温预退火工艺既强化了立方织构的内能优势,又为立方织构的异常长大提供了有利的组织保证,最终在抑制剂(AlN和MnS)的协同作用下,硅钢在二次再结晶退火后形成了强烈的立方织构。 The texture and substructure of the double oriented electrical steels produced by the cross rolling technology during the difference process has been measured by means of the X-ray texture and diffraction peak profile analysis technology,and research the formation mechanism of cube texture,{100}<001>.The results show that the dominances of inner energy and deformation texture were supplied by secondary cold rolling and the cross rolling technology and strengthened by pre-annealing at a low... 

【作者】 王爱华； ...

某厂对电工钢的轧制策略进行了优化，粗轧道次由“1+5”改为“1+3”。在优化后的生产过程中，每次变换钢种，烫辊材就会出现窄尺现象，而紧随其后的电工钢板则出现超宽现象。文中针对该问题，介绍了宽度设定模型和宽度自适应模型的原理，阐述了该问题出现的原因及解决方案，并通过对宽度自适应模型的应用研究及优化攻关，有效地解决了问题，大幅提升了实物质量，降低了宽度封锁率。 The rolling strategy of electrical steel was optimized in a factory,and the rough rolling pass was changed from “1+5”to“1+3”.Subsequently,the following problems were occurred in the production process:when the steel grade changed,the roasting roller steel before the electrical steel appeared the narrow width phenomenon,and then the electrical steel appeared the ultra-wide phenomenon.This paper introduced the principle of width setting model and width adaptive model,and expounded the causes and s...