钢厂
TSCR试制高强度无取向电工钢
采用固溶强化、细晶强化和位错强化方法,模拟TSCR流程试开发高强度无取向电工钢,试开发钢的主要合金成分为3%Si、0.83%Al和2.99%Mn。分析热轧、常化、退火后的钢板组织,并针对不同的成品板组织,详尽地分析了相应的力学性能和磁性能。试验电工钢平均晶粒直径为12.37μm时,R p0.2为530 MPa,R m为618 MPa;当退火制度为700℃×4 min,成品组织完全为未再结晶的回复组织时,R p0.2为853.5 MPa,R m为895.5 MPa。该成分的电工钢P15/50或P10/400最小时,对应的平均晶粒直径都大于59.67μm;P10/800或P10/1000最小时,对应的平均晶粒直径都处于12.37~59.67μm尺寸区间。 TSCR was simulated to develop high-strength non-oriented electrical steel with 3% of Si,0.83% of Al and 2.99% of Mn by solution strengthening,grain refinement strengthening and dislocation strengthening.The microstructures of hot rolled plates,normalized plates and annealed plates were analyzed.Furthermore,the mechanical properties and magnetic properties of products with different microstructures were detailedly studied.As the average grain diameter of the steel was 12.37 μm,the yield strength ...
锌浴中钛对含硅钢Fe-Zn反应的抑制作用
选用Q235和Q345钢,在纯锌浴和含钛量分别为0.05%、0.10%、0.15%、0.20%(质量分数)的合金浴中浸镀0.5、1、3、5、8 min。利用扫描电子显微镜和能谱仪研究了钛对热浸镀锌组织和生长动力学的影响,并提出钛对含硅钢铁锌反应抑制作用的机理。结果表明:钛的加入缩短了Γ的孕育期,促进了合金层中δ的生长和ζ的消失,δ的生长依然受扩散控制,呈抛物线生长规律;Zn-0.05%Ti锌浴可以很好的抑制高硅钢的硅反应性;含硅钢热浸镀锌钛合金浴时,在锌浴中会形成锌铁钛三元T相,该相能吸收ζ晶界处富集的硅,从而抑制了铁锌反应。 Both Q235 and Q345 steels were immersed for 0.5 to 8 min in Zn bath with different amount of Ti,ranging from 0 to 0.20 mass%,for galvanization.The effect of Ti in Zn bath on microstructure and growth kinetics of hot-dip galvanizing coatings on the two steels were investigated by means of SEM and EDS analysis.Base on the experiment,the mechanism of Ti additions in controlling Fe-Zn reaction was proposed.The results show that addition of Ti in the zinc bath decreases the incubation time of Γ phase...
我国硅钢发展现状及发展趋势
硅钢是钢铁产品中的\"工艺品\",是高附加值产品,通过对我国主要硅钢生产厂家的工艺设备,市场情况分析,简要介绍了我国硅钢生产消费现状,未来生产能力预测及硅钢未来发展趋势。 Silicon steel is the \"crafts\" of steel products,also is high value-added product.By analyzing process equipment and market condition of major silicon steel-making plant of China,it briefly introduces our current production consumption status,future production capacity prediction and future development trend of silicon steel.
低温取向硅钢高温退火抑制剂的演化
取向硅钢利用析出物作为抑制剂,抑制初次再结晶晶粒的长大,抑制剂是取向硅钢发生二次再结晶的基本条件之一。文中通过低温板坯加热技术制备取向硅钢,采用透射电镜(TEM)观察并研究了高温退火阶段抑制剂的演化过程。结果表明,渗氮后形成的非晶态Si3N4析出物不稳定,在700~750℃退火升温阶段转化为(Al,Si)N;(Al,Si)N颗粒在800℃发生团聚,随后长大并粗化;(Al,Si)N是低温取向硅钢主要抑制剂,随退火温度的升高,(Al,Si)N抑制力大幅下降。 Precipitates as inhibitor are used to inhibit the grain growth of primary recrystallization in grain-oriented silicon steel,and inhibitor is one of the basic conditions for occurring of secondary recrystallization.The grain-oriented silicon steel was produced by low temperature slab heating and nitriding technique.The evolution of inhibitor was observed by transmission electron microscopy.The results show that Si3N4 particles are precipitated after nitriding,and Si3N4 particles are amorphous and...
电动汽车电机用电工钢疲劳性能测试技术研究
电动汽车电机在高速旋转时承受离心力和电磁力的作用,在进行电机转子设计时,既要考虑电磁性能,还要考虑机械性能。对电机转子受力情况进行了综述,分析了转子用电工钢疲劳性能参数的重要性,详细阐述了试样抛光、表面处理、试样的对中和安装对测试结果的影响。 The motor of electric vehicle bears big force for high speed rotors,mainly including centrifugal and electromagnetic forces.The magnetic and mechanical aspects of the electrical steel are crucial to machine design.In this paper,the forces applied on the motor were summarized and importance of fatigue properties was analyzed.The influence of specimen polish,surface treatment,alignment and installation on fatigue testing result were represented in detail.
CN202121908201.3一种稀土永磁变频电机加工硅钢片冷却装置
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。
提高硅钢卷材下料利用率的几种方法
阐述了影响硅钢卷材下料利用率的因素,并结合具体事例利用计算机排样系统进行了详细分析,对提高硅钢卷材的利用率具有一定的指导作用。 It describes the factors influenceing the the utilization ratio of the roll of Silicon steel,and analyzes it in detail combined with concrete examples by a computer arrangement system,which can give a guide for increasing the utilization ratio of the roll of Silicon steel.
Nb微合金化Fe14Si2高硅钢温轧板织构演变规律
采用Nb对Fe-6.5%Si(质量分数)高硅钢进行微合金化处理,结果表明:Nb在高硅钢薄板制备过程中细晶效果明显.铸态、锻态和热轧态组织的晶粒分别细化了17.50%,24.51%和30.13%.铸态样品压缩强度由1365 MPa提高至1520 MPa,延伸率提高77.78%;温轧板试样室温拉伸强度由573 MPa提高至621 MPa,延伸率提高44.44%.利用XRD对厚度为0.30—1.68 mm的温轧板的板面织构演变过程进行跟踪测量,结果发现:初始织构以(011)〈100〉Goss织构为主,单道次变形量为26.2%的情况下,Goss织构完全转化为(100)〈011〉旋转立方织构,随后,在单道次变形为22.6%的情况下,旋转立方织构完全转化为{111}面织构,即纤维织构,并稳定保持至0.30 mm. Fe-6.5%Si(mass fraction) alloy possess perfect magnetic properties,though intermetallics of Fe14Si2 phase brought 6.5%Si leads to room temperature brittleness and hinder this significant materials industrialization.Nb was adopted into micro-alloying of Fe-6.5%Si high silicon steel. OM,thermal simulated test machine and XRD were employed to study the influence of Nb on high silicon steel in processing stages.Textures of warm-rolled high silicon steel strips were determined b...
西昌钢钒200t RH生产无取向硅钢的工艺实践
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...
CN202180051593.2取向性电磁钢板的制造方法
本发明提出了一种控制磁畴结构来降低铁损的取向性电磁钢板的制造方法中,即使在实施了去应力退火的情况下,也能够保持铁损降低效果,并且在磁畴控制处理后磁通密度不会降低的方法。本发明的制造方法中,在取向性电磁钢板的表面,沿与钢板的轧制方向交叉的方向线状地照射周边比中心低的环状的强度分布的激光。
CN202111614993.8取向硅钢酸洗圆盘剪的剪切方法
公开了一种取向硅钢酸洗圆盘剪的剪切方法,方法中,取向硅钢的钢带经酸洗槽酸洗、漂洗、烘干之后,清除表面的氧化铁皮后进入圆盘剪,根据所述钢带的宽度调整圆盘剪的机架之间的距离,根据钢带厚度h调节圆盘剪的上刀片和下刀片间隙△,以及上刀片和下刀片的边缘重叠量C,使得间隙△为h/0.9,重叠量C为1.05‑0.2*h,钢带通过上刀片和下刀片时,上刀片和下刀片施加剪切力于钢带上构成切断面,切断面占带钢厚度的1/5~1/3,随着咬合深度的增加,切断面的变形量也随之增加,直到切断面从钢带断裂形成撕断面。
CN202122465289.2一种硅钢底辊套管生产用防氧化处理装置
本实用新型公开了一种硅钢底辊套管生产用防氧化处理装置,包括一种硅钢底辊套管生产用防氧化处理装置,包括底板和打磨箱,所述底板的顶面固定安装有打磨箱,且打磨箱的背立面焊接有安装架,且安装架的一侧表面固定安装有驱动电机,所述驱动电机的输出端通过联轴器贯穿打磨箱的表面并延伸至内部固定安装有转动轴,且转动轴的表面设有打磨辊。有益效果:通过设置吸尘管、吸尘孔、管道和吸尘器的相互配合使用,吸尘器的进气端能够将打磨过程中的灰尘通过管道从吸尘管表面的多个吸尘孔内吸出,防止灰尘四处飘散,降低灰尘对工作人员身体造成的伤害,同时减少灰尘对环境造成的污染,且减轻工作人员清理飘散后灰尘时的劳动量。

