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一种无取向电磁钢板用热轧钢板,其以质量%计,含有C:0.0010~0.0050%、Si:1.90%~3.50%、Al:0.10%~3.00%、Mn:0.05~2.00%、P:0.100%以下、S:0.005%以下、N:0.0040%以下、B:0.0060%以下、Sn:0~0.50%、Sb:0~0.50%、Cu:0~0.50%、REM:0~0.0400%、Ca:0~0.0400%及Mg:0~0.0400%,剩余部分为Fe及杂质;该无取向电磁钢板用热轧钢板的特征在于,在无取向电磁钢板用热轧钢板的板宽方向端部中,板厚中心部(t/2位置)的加工组织的硬度HD为Hv220以下。
2021-02-19 161 6.8

为提高无取向硅钢导磁性能,研究了不同剪切方式对无取向硅钢剪切处磁畴结构的影响。利用纳米磁流体观测无取向硅钢剪切后边部磁畴结构。结果表明,硅钢无论在机械剪切还是线切割后的边部磁畴都会发生不同程度的改变:线切割对边部磁畴结构改变较小,边部磁畴分布均匀且连续,在距边缘0~20μm范围内出现磁畴宽度变小现象;机械剪切对磁畴的改变较为严重,剪切处磁畴零乱且不连续,在距边缘20μm处仍难以观察到完整的磁畴结构。 The effects of different shearing modes on magnetic domain structure of cold rolled non-oriented silicon steel are studied in this paper.The magnetic domain of cold rolled non-oriented silicon steel is observed by nanometer magnetic fluid pattern method.The results show that the edge magnetic domain structure will be changed by mechanical shear and wire-electrode cutting,the variation of edge magnetic domain structure wire-electrode cutting edge is very small,the magnetic domain structure is wel... 
2012-04-28 356 5.8

本实用新型公开了一种高磁感取向硅钢加工用拉伸装置,涉及硅钢加工技术领域,包括安装架,所述安装架的后端安装有两个驱动电机,两个所述驱动电机的输出端均连接有下输送辊,所述下输送辊的左侧设置有下调节辊,所述下调节辊和下输送辊的末端均固定有限位圈,所述下输送辊的上方设置有上输送辊,所述上输送辊的左侧设置有上调节辊,所述上调节辊和下调节辊的内部均设置有连接杆,所述连接杆的外表面设置有卡块。该高磁感取向硅钢加工用拉伸装置通过设置的驱动电机,能够带动下输送辊转动,从而对工件进行输送,通过设置的连接杆和卡块,使得下输送辊转动时能够带动下调节辊转动,提高工件的输送效率。
2021-12-12 262 6.8

试验研究了球刻痕法对高磁感取向硅钢的铁损、矫顽力、相对磁导率、巴克豪森噪声等磁学性能的影响.研究结果表明:经过球刻痕处理后,高磁感取向硅钢的铁损明显降低,矫顽力下降,8 mm球刻痕过后铁损值与矫顽力分别下降16.2%和14.7%,且铁损和矫顽力均随刻痕间距降低而减少.刻痕后的高磁感取向硅钢磁导率在高磁感应强度下明显上升,刻痕后巴克豪森噪声值明显降低,经过对比分析确定8 mm为球刻痕的最佳刻痕间距.从磁畴观察、细化磁畴的原理等方面解释了细化磁畴对高磁感取向硅钢性能的影响原因. The effects of the ball scribing on magnetic properties of high permeability grain-oriented silicon steels,including the iron loss,coercive force,relative permeability,and Barkhausen noise were investigated. The results showed that the iron loss and coercive force of the high permeability grain-oriented silicon steels apparently decreased 16. 2% and 14. 7% respectively after 8 mm ball scribing and they both decreased with the decrease of the scribing spacing at the same magnetic flux density. At... 
2013-11-28 350 5.8

【摘要】 <正>含6.5%Si的电工钢是软磁特性最佳的电...
2014-04-28 157 5.8

适用范围 本标准规定了特高压变压器用冷轧取向电工钢带的术语和定义、分...
2023-05-25 1.5k 8.6

对高磁感取向硅钢冷轧板分别进行800、950、1050和1120℃不脱碳的预退火处理,在800℃预退火,成品的磁性能较好。织构分析的结果表明,随着预退火温度升高,初次再结晶后有利织构组分{111}<112>与不利织构组分(118)[110]的比值f(111)/f(118)逐渐降低,初次再结晶织构的变化是成品磁性的影响因素之一。 Preliminary annealing process at different temperatures for cold-rolled strips of a high permeability grain-oriented silicon steel was investigated to study the effect of the annealing temperature on microstructure and magnetic performance of the steel.Results show that the magnetic performances of the products annealed at 800 ℃ are best.Analysis of primary recrystallization texture indicates that with rising temperature,f(111)/f(118) which is the ratio of the favorable component {111}<112>... 
2013-03-28 239 5.8

通过热力学计算,分析了实验钢中主要析出物析出的可能性。结果表明:在液相和固液两相区中,AlN和MnS均不能析出;在奥氏体区,AlN和MnS具备热力学析出条件,平衡析出温度分别为1547、1582 K。成品退火板中的析出物主要为AlN和MnS。扫描电镜下观察到的AlN形貌多为长条状,MnS形貌多为棒状或近似球形。这两种析出物占了析出物总量的85%以上,尺寸集中分布在400~800nm;复合析出物主要是(Al2O3+MnS)和(AlN+MnS),形貌不规则,尺寸集中在0.7~1.5μm;透射电镜下观察到了少量100nm以下独立的AlN析出。 According to thermodynamic calculation, the precipitation probability of precipitates was analyzed, AlN and MnS can not precipitate in liquid phase area and solid-liquid two-phase area. In austenite area, both the AlN and MnS have precipitation condition in thermodynamics and precipitates at 1547 K and 1582 K, respectively. The precipitates in annealing plate are mainly AlN and MnS. The shape of AlN is mostly strip, and MnS is stick or near sphericity. They accounted for over 85% of the total qu... 
2023-05-09 474 5.8

一种硅钢生产线退火炉前的换热装置,包含有抽风机(1)、立柱(2)、热交换器(3)、软管(4)和热风机(5);其特征在于:所述的热交换器(3)由若干组U形不锈钢管连接而成,一端固定在轴套(8)上,另一端通过链条(10)连接在立柱(2)顶端的链条盘(9)上,当链条盘(9)转动时,链条(10)拉动热交换器(3)绕着横轴(7)抬起或放下。本发明通过抽风机(1)将清洁空气抽到热交换器(3)内进行加热,然后再通过软管(4)将热空气输送到热风机(5)内来加热硅钢板(14),有效的利用了热能,避免了凝露导致的板面发蓝现象。
2020-12-25 342 6.8

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。
2021-12-27 357 6.8

【摘要】 <正>近日,从重钢集团获悉,日前重钢炼钢厂...
2013-01-28 371 5.8

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