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本发明公开了一种去除无取向硅钢夹杂物的方法,在中间包预设脉冲电流装置,将所述脉冲电流装置的正极连接在上挡渣堰处,负极连接在下导流坝处,在钢水浇注过程中,施加电脉冲处理即可。本发明基于中间包钢水流场的研究,在中间包上挡渣堰和下导流坝之间施加脉冲电场,扩大了脉冲电场作用的钢水区域,且随着钢水流场运动,流场与脉冲电场相互作用,使得细小的SiO2和MnS夹杂物在钢水运动过程中更有效的碰撞、聚集、长大,并有充足的时间充分上浮,从而达到有效去除铸坯夹杂物,降低铸坯中S和O含量,大幅提高钢水纯净度,进而提高硅钢成品磁性能。
2021-05-24 165 6.8

无取向硅钢特别是中牌号以上的无取向硅钢,随着含硅量的提高,常温下塑性较差,冷轧过程中轧制力明显提高,如果存在原料质量问题,极易发生断带事故,影响硅钢冷轧过程的成材率和生产效率。通过优化冷轧工艺参数,可提高冷轧稳定性。生产中通过合理分配冷轧各道次压下量和轧制速度,保证了轧制过程的稳定,很大程度减少了冷轧断带事故的发生。 Non-oriented silicon steel, especially in the low and middle grade, with the increase of silicon content, plasticity is poor at room temperature, rolling force in cold rolling process significantly improved .If there is the quality defect of raw materials , easily sheet is rolling off. Affect finished product rate and production efficiency in process of cold-rolled silicon steel. Through optimization of cold rolled process parameter , improve the stability of cold-rolling process. Through reason... 
2011-02-28 162 5.8

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... 
2011-06-28 135 5.8

研究了电工钢SXRC的显微结构和疲劳性能,并与DP钢进行了比较。结果表明,退火温度低温化能够有效的抑制电工钢的再结晶。该钢在固溶铌的作用下,能够在保证电机磁性的同时具有一定的强度。与DP钢相比,SXRC钢的抗疲劳性能更好。 The microstructures and fatigue properties of the electrical steel SXRC we re investigated, and the properties were also compared with the steel DP. The results show that the recrystallization of the electrical steel can be suppressed at lower annealing temperature. The steel presents favorable motor magnetic and also a compatible strength with the help of solid-solution Nb. Compared with the steel DP, the fatigue resistance of the steel SXRC is preferable. 
2014-09-28 158 5.8

一种增大压下率的电工钢冷轧装置及冷轧方法,属于电工钢冷轧技术领域,该电工钢冷轧装置,包括单机架可逆轧机,单机架可逆轧机的两侧均设置有电磁感应加热装置和氮气风冷装置,氮气风冷装置靠近单机架可逆轧机的轧制进口或入口设置,本发明的有益效果是,本发明通过在单机架可逆轧机两侧增设电磁感应加热装置和氮气风冷装置,对每道次轧制过程中可在线调节电磁感应加热温度,实现了边去应力退火边轧制,保证了正常的轧制工作,达到了高效轧制更薄规格电工钢产品的目的和消化生产CSP热轧超厚过渡坯的目的。
2021-09-26 152 6.8

从取向硅钢生产路线的选择、工艺技术的改进和生产设备的改造三方面进行了生产取向硅钢的节能降耗技术改造.通过完善多元抑制剂配方生产低温取向硅钢,通过加抛丸的酸洗、带面超声波清洗、改进连续退火炉以及余热循环利用等技术改造,使2012年取向硅钢的产量与未进行技术改造前的2009年相比提高了2.5倍,产品磁性上升了一个半牌号,能耗下降了8.9%,成材率提高了6.4%,生产成本下降了22%,综合效益显著. Energy saving technological transformation was carried out in the production of grain oriented silicon steel from three aspects of the oriented silicon steel production process route selection,technology improvement and equipment renovation.Through the improvement of multiple inhibitor formulations for producing low-temperature grain-oriented silicon steel,and by adding the blasting pickling,the belt surface ultrasonic cleaning,improvement of continuous annealing furnace,waste heat recycling tec... 
2013-02-28 169 5.8

【作者】 侯桂芹; 张颖; ...
2023-05-09 181 5.8

考虑剪应变对微孔洞损伤演化的影响,对GTN损伤模型的损伤演化机制进行修正,建立了适用于不同应力三轴度水平的损伤模型。结合隐式应力更新算法和显式有限元计算,采用VUMAT子程序实现了修正GTN模型在有限元软件ABAQUS中的数值计算。通过模拟纯剪切和剪切-拉伸两组试样的损伤演化和断裂行为,验证了修正GTN模型在不同应力三轴度承载条件下的有效性。运用修正GTN损伤模型模拟含边部缺口的带钢在轧制过程中裂纹的萌生和扩展行为,模拟结果与实验相一致,表明该模型可有效地用于带钢缺陷在轧制过程中扩展行为的分析和预测。模拟和实验结果表明,带钢边部缺口在轧制过程中,缺口前沿和后沿均会萌生裂纹,且后沿裂纹扩展更为明显。 Considering the effect of shear strain of micro-void on damage evolution, a modified GTN model applicable to various stress triaxiality conditions is proposed by modifying the damage evolution mechanism of the GTN damage model. The modified model is implemented in commercial finite element software ABAQUS by combining the implicit stress update method with an explicit finite element solving algorithm and through the user-defined material subroutine VUMAT. The damage evolution and the failure pro... 
2014-06-28 134 5.8

本发明提供一种电磁屏蔽用1050铝/50W800无取向电工钢钢板生产方法,包括S1)、将轧制好的铝卷和钢卷分别放置在两个开卷机上开卷;S2)、开卷后分别采用HCl、NaOH溶液清洗;S3)、用旋转钢丝刷法对铝板、钢板待结合面进行机械处理10‑15s;S4)、将铝板、钢板置于丙酮溶液中超声波清洗2‑3min;S5)、将表面处理后的铝板、钢板进行预拉伸或者预压缩,S6)、将预应力处理的铝板、钢板边部进行焊接;S7)、将焊接好的钢铝板进行轧前的预热处理;S8)、然后进行连续退火炉中进行退火处理,本发明将金属铝板、钢板通过热轧轧制复合化结合在一起,界面剪切强度≥100MPa,反复弯曲次数≥10次。
2021-09-28 132 6.8

本实用新型公开一种稀土永磁变频电机加工硅钢片冷却装置,包括左、右间隔设置的悬架端杆;悬架端杆之间装配连接有若干个前后间隔设置的硅钢片卷料收卷部件,硅钢片卷料收卷部件均包括转动连接在悬架端杆上的旋转座,旋转座之间固定连接有若干个折形搭料杆,折形搭料杆包括横杆部,所述横杆部的左右两端均具有一体成型的折形端,折形端均固定连接在旋转座上;硅钢片卷料收卷部件之间通过传动部件传动连接;上述装置还包括若干个装配连接在悬架端杆顶部之间的风冷部件。采用上述装置部件设计实现对热处理加工的硅钢片快速卷绕,并且卷绕收卷过程中快速对物料进行冷却,有效提高了加工过程中硅钢片物料的冷却、收卷效率。
2021-08-13 128 6.8

对西昌钢钒炼钢厂200 t BOF(顶底复吹)-RH-CC工艺生产50PRW800无取向硅钢RH精炼过程中主要成份进行了分析。找出了目前工艺中影响钢液质量的主要因素是钢水脱氧处理不彻底,造成加入的部分硅元素烧损。操作工艺改为铝的脱氧即合金化操作一步完成,保证了钢水中氧处于一个较低的范围,从而减少对硅元素的烧损,提高合金收得率。 The factors of BOF-RH-CC process affecting the compositions of liquid steel were systematically investigated and studied of Xichang Steel and Vanadium Company. The main factors affecting the steel cleanliness were picked out. All results showed that the loss of silicon elements resulting from the deoxidization of liquid steel was not completely. It was suggested that the addition of aluminum for deoxidizing and alloying of molten steel was executed as one step in order to lower the oxygen potent... 
2014-03-28 145 5.8

一种无取向性电磁钢板:以质量%计其母材的化学组成为:C:0.0010~0.0040%、Si:4.0~5.0%、Mn:0.20%以下、Al:0.010%以上且不足0.050%、P:0.030%以下、S:0.0030%以下、N:0.0005~0.0030%、O:0.0100~0.0400%、Ca:不足0.0010%、Ti:不足0.0050%、Nb:不足0.0050%、Zr:不足0.0050%、V:不足0.0050%、Cu:不足0.20%、Ni:不足0.50%、Sn:0~0.05%、Sb:0~0.05%、剩余部分:Fe和杂质;从母材表面到深度方向10μm的位置为止以外的区域中的O含量不足0.0050%。
2021-04-16 139 6.8

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