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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... 
2022-01-28 150 5.8

本发明公开了一种提高薄板坯连铸生产高铝无取向硅钢可浇性的方法,在保证生产顺行、质量稳定的基础上,能使高铝无取向硅钢连浇炉数由10炉提高至16炉,在提高小时产量、降低生产成本方面效果显著。
2021-03-25 132 6.8

介绍了国内无底层取向电工钢生产技术水平、产量和用途,简述了无底层取向电工钢作为取向电工钢超/极薄带母料及应用于制作大型发电机组铁心、风电等电机铁心和变压器铁心等的情况。 The production technology level,output and application of domestic glassless grainoriented electrical steel were introduced,and the application of glassless grain-oriented electrical steel as parent material of ultra-thin strip of grain-oriented electrical steel and in making large-scale electric generator cores,wind power motor cores and transformer cores were briefly described. 
2022-02-28 150 5.8

本发明涉及无取向硅钢生产技术领域,公开了一种改善含Cu高强度无取向硅钢冷轧质量的方法,包括如下步骤:A)含Cu高强度无取向硅钢热轧卷化学成分(wt,%):Si:2.0~3.5%,Als≤1.5%,Cu:1~3%,其他为Fe,Als,Mn以及不可避免的杂质元素,对热轧卷进行常化酸洗处理,常化温度T常满足:T常≤1620‑(0.5Als+1.5Si+Cu)%×104,单位℃;B)将常化后的热轧卷在电磁感应加热炉内进行加热;C)在冷轧机组开卷机进行开卷,冷轧第一道次开卷温度T冷轧满足:1.5×(Si+Cu)%×103‑T室温≤T冷轧≤40+2×(Si+Cu)%×103,单位℃,式中,T室温为室温;D)按照4‑6道次冷轧到目标厚度。本发明改善含Cu高强度无取向硅钢冷轧质量的方法,在采用传统常化工艺路线,保证较高的强度和磁性水平前提下,改善冷轧质量,提高成品成材率。
2021-03-31 121 6.8

本发明公开了一种可替代高磁感取向硅钢常化退火的热处理方法。该方法包括对所述取向硅钢的铸坯依次进行热轧、酸洗和冷轧,省去了常化酸洗工序中的常化退火工艺。所述热轧工序包括加热、粗轧和精轧过程,所述精轧过程中,热轧板离开精轧机最后一个机架时的温度达到1000~1050℃;或者,所述酸洗工序后,对热轧板进行通电加热至1000~1050℃;然后,对热轧板采用短时通电加热控制冷却速度,通电加热2‑5s使热轧板的温度降至940~960℃。采用该热处理方法得到高磁感取向硅钢常化板等效织构,满足生产高磁感取向硅钢的织构组分条件,其简化了高磁感取向硅钢的制造工艺,降低了生产成本和能耗,提高了生产效率。
2021-01-14 114 6.8

【作者】 康凌晨; 王丽娜; ...
2014-05-28 103 5.8

一种提高有效氮和底层质量的高磁感取向硅钢制造方法:冶炼后连铸成坯;对铸坯加热;热轧、常化及酸洗后时效冷轧;在湿式气氛下脱碳退火;在湿式混合气氛下均热;在湿式混合气氛下渗氮退火;进行后工序。本发明与现有技术相比,通过合理控制渗氮过程,提高渗氮后钢板基体内氮含量与总氮量之间的比例达到80%以上,使无点状露晶产生,最终获得产品的底层质量优异。
2021-01-29 101 6.8

通过观察冲剪边缘组织,测量冲剪边缘的显微硬度、残余应力的分布情况和磁性能的变化研究了冲剪加工对无取向硅钢50WW800边缘组织和磁性能的影响。对冲剪后硅钢片进行750℃退火,分析退火对组织和磁性能的影响。结果表明,硅钢片剪切边缘会存在0.4 mm的形变硬化层,边缘应力大,铁损增加。退火后变形减小,形变硬化层变小,残余应力大幅度减少,铁损减少。 The influence of punching process on cutting edge microstructure and magnetic properties of non-oriented silicon steel 50WW800was studied by observing microstructure and measuring microhardness near cutting edge.The residual stress distribution in the silicon steel tooth and magnetic properties were measured.Effect of annealing at 750 ℃ on microstructure and magnetic properties of the silicon steel was analyzed.The results show that a cut-edge hardening layer up to 0.4 mm is observed,residual st... 
2023-04-28 175 5.8

硅钢工业退火炉温度控制具有强耦合、纯滞后、多扰动等特点,它的控制方法代表着一类非线性系统控制的解决方法。以硅钢工业退火炉温度为控制对象,在双交叉限幅控制的基础上引入了智能学习系统,形成了基于智能学习系统的双交叉限幅控制方法来解决此类非线性系统的控制问题,并通过模块化的编程来实现其功能。结果表明:与传统的PID控制相比,该控制方法的控制精度、抗扰性等控制指标有明显提高,是解决此类非线性控制的一种有效方法。 The temperature control of silicon steel industrial annealing furnace has the features of strong coupling,pure lag,multidisturbance. The control method represents the solution of a class of nonlinear control systems. The control object is the temperature control of silicon steel industrial an-nealing furnace, the intelligent learning system based on Double Across Limit Control is introducedand used to solve control problem of this kind of nonlinear system, and the module programming isused to re... 
2014-05-28 115 5.8

【机构】 武汉钢铁学院轧钢七二级电工钢结业小组; ...
2023-05-12 213 5.8

研究了应用电感耦合等离子体质谱(ICP-MS)同时测定硅钢中痕量铝、钼、钒、钛、铌元素的分析方法。通过条件试验对测量参数进行了优化,确定RF功率1 400 W,泵速30rpm,采样深度140,雾化压力0.90。样品采用硝酸分解,以Be、Y混合内标校正了测量过程中高基体引起的信号漂移。根据测量时存在的质谱干扰情况,选择同位素27 Al、98 Mo、51 V、47 Ti和93 Nb作为测定同位素,同时通过调节仪器参数使得双电荷离子和氧化物离子的产率最低,以减少其带来的干扰。采用基体匹配法配制校准溶液,以标准加入法建立工作曲线,并扣除试剂空白。该方法各元素的测定下限均可达到1μg/g。用于硅钢标准样品的测定,所得结果与参考值完全吻合,各元素的RSD小于5.2%。 A method for the determination of trace aluminum,molybdenum,vanadium,titanium and niobium in silicon steel by inductively coupled plasma mass spectrometry(ICP-MS) was described.A series of single parameter condition experiment was conducted.The optimized operation parameters with RF power 1 400 W,turbo pump rate 30 rpm,sampling depth 140 and nebulizer pressure 0.90 were obtained.The samples were dissolved by HNO3,and the Be and Y mixing internal standard were used to eliminate the signal drift c... 
2013-01-28 139 5.8

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... 
2023-01-28 163 5.8

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