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研究了退火温度和退火时间对电沉积硅钢试样中的断面层组织、硅在试样中的分布情况、织构分布和磁性能的影响。结果表明:退火温度为1000℃、退火时间为210 min时得到的试样晶粒分布均匀、硅在试样中分布均匀、硅平均浓度为6.3715%(接近6.5%)。试样的织构分析及磁性能检测的结果表明,在较高温度下延长退火时间可增加{100}和{110}面织构,降低铁损,所得试样的磁性能较为良好。 The effect of annealing temperature and time on the microstructure, distribution of silicon,texture and magnetism of the high silicon steel prepared by electrodeposition was investigated. The results showed that after annealing at 1000℃ for 210 min, the mean grain size of steel was about 190 μm with a uniform grain size distribution, and the silicon is also uniformly distributed on the entire cross section with an average Si concentration 6.3715%(close to 6.5%); With the increasing annealing tim... 
2014-07-28 109 5.8

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 ... 
2011-02-28 109 5.8

本申请公开了一种低铝无取向硅钢结晶器液面波动的控制方法,包括:步骤1:KR脱硫,脱硫后铁水硫含量≤0.0015%;步骤2:转炉吹炼,转炉出钢后钢包顶渣厚度≤30mm;步骤3:RH真空处理,RH脱碳结束后,加入铝粒脱氧后钢液循环3‑5min,提升气体流量至0.8‑1.0m3/(h·t);随后加入合金进行脱氧合金化,提升气体流量至0.5‑0.7m3/(h·t);步骤4:连续浇注,长水口氩气流量150‑200L/min,连铸塞棒氩气流量5‑10L/min,背压≥0.05bar。本申请的控制方法控制结晶器液面波动≤±1.5mm的比例稳定在90%以上。
2021-09-24 109 6.8

对CSP流程生产的无取向电工钢M50W800不同尺寸样品的磁性能进行了测试和分析,结果表明:采用不同单片检测的磁性能结果与标准的Epstein方圈样品检测对比,存在明显的偏差;且同一尺寸的单片纵横向样品之间相比较,对应的磁性能差异性也较大。几种不同尺寸的单片样品,以320mm×30mm尺寸的纵横向平均值最接近标准Epstein方圈样的性能值,其铁损偏差最小。 The magnetic properties of M50W800 non-oriented electrical steel produced by CSP process were tested and analyzed with samples of different sizes,showing that significant deviation existed compared to that of Epstein square circle sample.In particular,obvious difference in magnetic properties also existed between longitudinal and transverse samples of the same size.For test samples of different sizes,the average magnetic properties of 320mm×30mm samples are the closest to that of Epstein square ... 
2013-01-28 109 5.8

层叠铁芯使用的电磁钢板是在母材钢板(2)的表面具有涂布电磁钢板用涂布组合物而形成的绝缘被膜(3)的电磁钢板,所述电磁钢板用涂布组合物以特定的比率配合有环氧树脂、由烷基酚构成的第一固化剂、由苯酚甲阶酚醛树脂和苯酚酚醛清漆树脂中的任意一方或双方构成的第二固化剂。
2021-06-17 109 6.8

以能量平衡和辐射换热理论为基础,通过合理假定,建立了硅钢无氧化加热炉数学模型。采用数值计算的方法,通过自编程序,完成对带钢加热过程温度场的仿真。结果显示:数学模型能够反映带钢在无氧化炉内的加热过程,其升温曲线能够与工艺曲线相吻合;现行炉温分布并非最优,数学模型能够为炉温分布的优化、炉段的设计提供理论依据。 Mathematical model of NOF Section of Continuous Annealing Furnace is established based on energy balance and radiation heat exchange. The temperature field of steel is simulated by mathematical computation. The simulating results show that the mathematical model can reflect the heating process of silicon steel in NOF section, and the heat-up curve is coincide with the processing curve. From the results,it is known that the current furnace temperature gradient is not the best, and the mathematica... 
2013-06-28 109 5.8

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... 
2022-02-28 109 5.8

本发明公开了一种超高效变频空调压缩机用无取向硅钢薄带及其制造方法,属于无取向硅钢技术领域。本发明包括以下重量百分比的组分:C≤0.003%,Si:2.0%~2.5%,Mn:0.15%~0.5%,Als:0.3%~0.7%,Sn:0.05%~0.11%,S≤0.003%,P≤0.03%,B:0.002%~0.004%,Ca:0.003%~0.005%,N≤0.003%,Ti≤0.003%,其余为Fe及不可避免的杂质,且Mn/S比控制在20~60范围内,B/N比控制在0.7~1.5,Ca/S的比例≥1。为解决现有技术中存在的问题,本发明通过添加合金元素以及偏析元素,配合连铸、热轧、常化和连续退火等热处理工艺,以及优良的冷轧板形控制技术,实现0.30~0.35mm厚度薄规格的高效无取向硅钢产品,具备优异的磁性能和高屈强比的力学性能,满足高效变频空调压缩机电机磁性能和关节式定子高速冲裁对力学性能和板形的高标准要求。
2021-11-30 109 6.8

本实用新型公开了一种防护性能好的硅钢板带加工用卷曲设备,包括底座,所述底座的上表面固定连接有L型安装架,所述L型安装架的一侧固定设有第一电机,所述第一电机的输出端固定连接有第一转轴,所述第一转轴的外表面沿周向等间距设有多组可调卷绕机构,所述第一转轴的一侧设有驱动调节机构。本实用新型通过设置可调卷绕机构及驱动调节机构,硅钢板带卷绕完成后,第二电机带动主动齿轮转动,主动齿轮带动从动齿轮及第二转轴转动,从而两个移动块相互远离带动连杆转动,两个连杆转动带动弧形板向靠近第二转轴的方向移动,从而使弧形板脱离钢带卷的内圈,便于将钢带卷取下,防止工人用力操作过程中划伤。
2021-08-11 109 6.8

【作者】 罗海文; 向睿; ...
2014-10-28 109 5.8

本发明公开了一种硅钢冷连轧轧制过程温度获取方法、装置及电子设备,通过获取硅钢冷连轧生产过程的工业参数数据以及各机架间硅钢的实际温度测试数据,然后基于工业参数数据以及预设初始模型,确定硅钢冷连轧生产过程的温度预测模型,接着基于硅钢轧制前的预热温度以及温度预测模型,得到硅钢冷连轧轧制过程各机架变形区出口与下一机架变形区入口之间的预测温度数据,再将预测温度数据与实际温度测试数据进行对比,并根据对比结果中的温度差异值对相应机架间的乳化液参数进行修正,直至温度差异值小于预设阈值,得到修正后的温度预测模型,能够用于实现硅钢冷连轧轧制过程中,任意采样点硅钢温度的获取。
2021-09-15 108 6.8

将Fe-1.5Si硅钢试样分别在1 000~1 200℃空气条件下氧化30 min,观察发现在1 000℃和1 100℃时,氧化层与基体界面处存在硅酸亚铁,而当温度为1 200℃时,硅酸亚铁不但存在于界面处,同时也存在于氧化层中.将各温度下得到的带有氧化层的试样进行单道次热轧试验,压下率分别为10%和30%,发现1 000℃和1 100℃时,较高的压下率使氧化层破碎更加严重,但是单道次热轧未能改变氧化层的结构;当温度为1 200℃时,由于液态的硅酸亚铁的出现,单道次热轧能够将界面处的液化的硅酸亚铁层挤压到氧化层中,消除了硅酸亚铁层的钉扎基体的效应,改善了氧化层与基体界面的平直度. Specimens of Fe-1.5Si silicon steel were oxidized at 1 000 ~ 1 200 ℃ in air for 30 min.At 1 000 ℃ and 1 100 ℃ fayalite was observed at the scale/substrate interface.While at 1 200 ℃fayalite was found both at the scale/substrate interface and at the outer oxide layer.Then after the single-pass hot rolling process,with the compression ratio of 10% and 30%,it was found that at 1000 ℃ and 1 100 ℃,higher compression rate accelerated the broken of the scale layers,but the scale structure was not affec... 
2013-12-28 108 5.8

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