硅钢资料

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... 

阐述了电工钢在\"双碳\"中的作用,强调了电工钢的生产工艺技术及在减少碳排放、降低能耗中的作用,对下游能效升级带来明显的节能及降碳成果。同时,分析了2021年电工钢的生产运行情况,介绍了电工钢的未来发展,并针对如何减少碳排放以及生产更多的更低铁损、更高磁感的电工钢谈了几点启示。 The effects of electrical steels on carbon peak and carbon neutralization were expounded,especially on the achievements of obvious energy saving and carbon reduction to the downstream energy efficiency upgrading bringing from the production technology of electrical steels and their effects to reducing carbon emission and energy consumption.Meanwhile the production situation of electrical steels in 2021 was analyzed,and the future development of electrical steels was introduced,and some advices w... 

一种取向硅钢环形炉钢卷冷却装置，涉及冶金领域。该取向硅钢环形炉钢卷冷却装置用于控制环形炉的冷却一段内钢卷的冷却速度，其包括设于冷却一段的炉体内耐火层和绝热层之间的至少一块冷却板及多条设于绝热层内的冷却管，冷却管与一块冷却板贴合接触，冷却管设有用于控制流量的流量控制阀，绝热层还连接有贯穿其以对冷却板的温度进行检测的第一热电偶。本申请提供的取向硅钢环形炉钢卷冷却装置可满足不同品种和规格取向硅钢对冷却速度的要求，能够在满足出炉钢卷板形质量要求基础上减少钢卷在冷却一段的处理时间，提高环形炉的生产效益，同时能够减轻因钢卷重量波动、台车空装等因素对钢卷磁性能和板形质量的影响。

采用EBSD技术研究了有、无拉应力作用下无取向硅钢在晶粒长大过程中织构转变及晶界变化的规律。结果表明:在晶粒生长期间,无应力作用下的硅钢中,{111}〈112〉,{111}〈110〉织构组分强化,而{100}〈001〉织构组分弱化;与无拉应力作用下的情况相比,施加5MPa的拉应力时,{111}〈112〉,{111}〈110〉织构组分强化的速率下降,{100}〈001〉织构组分变化不明显。对于在晶粒生长期间持续变化的{111}〈112〉,{111}〈110〉和{100}〈001〉织构组分而言,虽然有、无拉应力作用下硅钢的{111}〈112〉和{111}〈110〉织构组分的高取向差角度晶界频率均下降,而{100}〈001〉织构组分的高取向差角度晶界频率则上升,但当有拉应力作用后,{111}〈112〉和{111}〈110〉织构组分的高取向差角度晶界频率下降的速率变小,{100}〈001〉织构组分的高取向差角度晶界频率上升的速率稍有变小。通过对无取向硅钢在晶粒长大过程中织构转变及晶界变化规律的研究,分析了合金原子在晶界的偏聚行为。 The rules of texture and grain boundary transformation in the nonoriented silicon steel under applied stress or without applied stress during grain growth were investigated by EBSD.The results show that the {111}〈112〉 and {111}〈110〉 components in the nonoriented silicon steel without stress are strengthened during grain growth whereas {100}〈001〉 component is weakened,but the growth rate of {111}〈112〉 and {111}〈110〉 component decreases,while the area fraction of {100}〈001〉 component doesn’t chang... 

本发明涉及一种提高低温高磁感取向硅钢附着性的方法，该方法在现有低温高磁感取向硅钢连续式脱碳退火炉中，通过在脱碳退火前区通入氮气、氢气干式混合气，在脱碳退火后区通入氮气、氢气湿式混合气进行脱碳，在渗氮区通入氮气、氢气湿式混合气及氨气进行渗氮，解决了低温高磁感取向硅钢附着性不好的难题。本发明方法提高了钢中总氧量、增加了氧化层厚度、改善了氧化层结构，经高温退火后生成了致密的硅酸镁底层，附着性大幅提高，测试结果均在C级以上，大部分样品在B级以上。

本发明公开了一种适用于无取向硅钢极薄带表面涂覆的涂液，它由水溶性丙烯树脂、成膜助剂、耐盐雾助剂、流平剂、纳米氢氧化锆、消泡剂、水按质量比100:(2～8):(1～3):(1～5):(0～1):(0.1～0.5):(70～130)组成。将该涂液在无取向硅钢极薄带表面可表现出良好的涂覆性，经烘烤固化后形成的绝缘涂层表面透明光滑，附着性和绝缘性能优良，可有效提升无取向硅钢极薄带的综合性能，适合推广应用。

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. 

在50Kg氧化镁坩埚真空感应炉上进行高硅电工钢的脱氧试验。结果表明,通过控制原料的成分、高真空下的碳氧反应和炉衬分解向钢液中的供氧,可使钢液的总氧含量≤15×10-6;在维持高温高真空条件下,当钢液中的反应达到一定程度后,延长精炼时间并不能降低钢液的总氧含量;完成精炼后加入硅钙合金沉淀脱氧可进一步降低钢液的总含氧量,但脱氧效果有限。 The test of high-silicon electric steel deoxidation has been carried out in 50Kg vacuum induction furnace with magnesium oxide crucible.Results show that the total oxygen could be ≤15×10-6in molten steel by controlling material components,carbon-oxygen reaction in high vacuum and oxygen contamination from crucible materials on molten steel;And when the reaction was carried through to a certain extent,total oxygen in molten steel could not be reduced by the extension of refining period in high va... 

本发明涉及取向硅钢制造技术领域，公开了一种快速判断取向硅钢初次再结晶晶粒直径的方法，包括如下步骤：选取取向硅钢热轧来料，进行生产，对产出的钢板在同部位各取若干个拉伸试样，加工拉伸和分析，取得屈服强度，在拉伸试样部位两侧连续制取金相试样，计算对应拉伸试样的平均晶粒直径D，将性能数据和平均晶粒直径进行统计分析，建立屈服强度与晶粒直径的对应关系，实际生产时，在产出的钢板上取判断试样，取得判断试样的屈服强度，进而取得判断试样的晶粒直径。本发明快速判断取向硅钢初次再结晶晶粒直径的方法，通过机械性能检验，来间接指示初次晶粒的大小，检测速度快，评价更准确。

运用电子背散射衍射(EBSD)和X射线衍射(XRD)技术对硅钢热轧板的织构在板厚方向的分布进行了研究,并分析了两种织构测量方法的特点。EBSD技术能直观给出板厚方向的微观织构,XRD能得到钢板的宏观统计织构信息,结合两种技术的分析,能更直观更精确的研究不同织构在板厚方向的分布。 The texture distribution along the thickness of the silicon steel has been investigated by electron backscatter diffraction(EBSD) and X-ray diffraction(XRD) technique.The characteristics of two technique of texture analysis have been investigated.Combined the two techniques,the texture distribution along the thickness of the silicon steel could be realized distinctly and accurately. 

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。

【作者】 康凌晨； 王丽娜； ...