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本发明提供方向性电磁钢板,能够同时实现充分低的变压器铁损与低噪音。一种方向性电磁钢板,其在表面具备张力被膜,实施了通过生成沿与轧制垂直方向在30°以内的方向延伸的线状的闭合磁畴而进行的磁畴细化处理,其中,邻接的闭合磁畴的平均间隔L为15mm以下,用规定式计算出的上述闭合磁畴相对于板厚的深度比率rd为35%以上,用规定式计算出的上述闭合磁畴的体积率rv为0.30%以上3.0%以下,用规定式计算出的上述闭合磁畴的面积率rs为0.50%以上4.0%以下。
2021-08-18 179 6.8

【作者】 罗海文; 向睿; ...
2014-10-28 179 5.8

目前高磁感冷轧硅钢生产过程中,采用经验方法确定的乳化液流量设定值往往会造成硅钢产品的磁感性能达不到预期目标,针对此情况,基于轧机轧制机理研究了的乳化液流量数学模型,确定了乳化液流量设定值。实践表明,使用该数学模型输出的乳化液流量设定值,可提高轧制过程中乳化液流量控制精度,从而提高高磁感冷轧硅钢的轧制性能。 In view of the current production process of high magnetically inductive cold-rolled silicon steel, the mathematical model of emulsified fluid flow based on mill rolling mechanism is studied in view of the situation in which the magnetic sensing performance of silicon steel products is often not up to the expected target by using empirical method to determine the emulsified liquid flow setting. Practice shows that the emulsified fluid flow setting value output from this mathematical model improv... 
2022-01-28 179 5.8

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 ... 
2013-04-28 179 5.8

借助电子背散射衍射(EBSD)及ZEISS-200MAT金相显微镜对某钢厂普通取向硅钢(CGO)进行研究,研究结果表明:热轧板组织、织构沿板厚方向存在明显的不均匀性,在热轧板表层及次表层发生再结晶,同时存在强度较高的Goss织构,中心层存在较强的{001}<110>变形织构。冷轧组织均呈纤维状条带组织,一次冷轧后,热轧板中的Goss织构消失,织构主要为α、γ织构,经中间脱碳退火后,α、γ织构强度减弱,并出现一定强度的Goss织构和利于Goss织构发展的{554}<225>、{332}<113>等织构,经二次冷轧后,二次冷轧织构类型与一次冷轧织构一致,但织构强度不同。 The grain-oriented silicon steel produced by a steel factory was investigated by EBSD and ZEISS-200 MAT metallographic microscope.The results show that the textures and microstructures along thickness of hot rolled slab are inhomogeneous.The surface layer and the layer near that are recrystallized structure which has a high Goss texture,but there is deformation texture{001}<110>in the central layer.The structure after cold rolling is a structure like fiber strip.After the first cold rollin... 
2014-11-28 179 5.8

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... 
2014-07-28 179 5.8

本实用新型公开了一种电工钢出炉水雾冷却装置,包括冷却箱和电工钢本体,所述冷却箱的顶部内璧固定有等距分布的第一支管,且第一支管的一端固定连接有第一进水管,所述冷却箱的底部固定有对称分布的两个支撑板,且支撑板的相对侧外壁靠近顶端转动连接有等距分布的辊轮,所述冷却箱的底部内壁和支撑板的上表面均固定有第二支管,所述第一支管和第二支管的圆周外壁均固定有等距分布的喷头。本实用新型水雾分别进入第一支管和第二支管后,从喷头喷出,对电工钢本体的上下两面喷洒降温,水雾均匀的附着于电工钢片的表面,并实现冷却作业,提高冷却效率,也保证了硅钢片的质量,避免硅钢片表面冷却不均匀致使厚度不一。
2021-05-12 179 6.8

本发明涉及电工钢的生产方法,更具体地说,涉及一种预应力生产中低牌号无取向电工钢的方法,包括铁水预处理;预处理后的铁水进行转炉冶炼并吹氩脱氧;吹氩后的钢水送入精炼炉中进行冶炼并加入低碳合金进行合金化;合金化处理的钢水通过薄板坯连铸机铸成板坯并采用薄板胚连铸连轧生产工艺进行轧制获得热轧板;所述热轧板经过酸洗冷轧,随后进行预应力拉伸并退火,采用涂层进行涂镀、烧结后卷取。本发明采用预应力拉伸,改善无取向电工钢退火前钢板内部应力的分布,制备的冷轧无取向电工钢产品的电磁性能P15/50≤5.4W/kg,磁感应强度≥1.72T,板形同板差≤8um。
2021-11-29 179 6.8

介绍了普通取向硅钢(CGO)和高磁感取向硅钢(Hi-B)铸坯高温加热两次冷轧、一次冷轧和铸坯低温加热两次冷轧、一次冷轧法4种成熟生产工艺的主要技术参数,取向硅钢理论研究(Goss晶核和抑制剂)和生产技术现状。取向钢的发展趋势为:提高(110)[001]晶粒取向度,降低取向硅钢铁损,发展铸坯低温加热(≤1 300℃)和薄板坯连铸连轧流程生产取向硅钢工艺。 Main technology parameters of four developed process:cast bloom higher temperature heating-double cold rolling or single cold rolling,lower temperature heating-double cold rolling or single rolling process for production of common grain oriented silicon steel(CGO) and high magnetic induction grain oriented silicon steel(Hi-B),theory research on grain oriented steel(Goss nucleus and inhibitor) and present situation of process are summarized in this paper.The development trend of grain oriented si... 
2013-05-28 179 5.8

一种厚度≤0.15mm无取向硅钢带,其组分及wt%为:Si:2.0~6.5%,Mn:0.13~0.40%,S≤0.020%,P≤0.020%,Als:0.15~0.9%,C≤0.010%;工艺:经冶炼、浇注成坯后热轧至中间坯厚度;冷轧;常温脱脂;光亮罩式退火;经碱洗后涂覆;分条。本发明在保证铁损P1.0/400£13W/kg,磁感B2000³1.5T下,还使钢带厚度公差不超过±0.005mm,最小叠装系数³0.92完全满足连续冲制要求。
2021-11-15 179 6.8

本实用新型公开了转盘式硅钢片转运装置,属于硅钢片转运领域,包括本体,所述本体的顶部设置有收纳箱,所述本体的内部水平设置有横板,所述横板的两侧分别与本体内腔的两侧固定连接,所述横板的底部设置有平移机构,所述横板横向活动套接在连接杆,所述连接杆顶端与收纳箱的底部固定连接,所述连接杆的底端固定连接有转动盘,所述转动盘的底部固定连接有固定杆,所述固定杆上活动套接有套筒,通过设置平移机构,平移机构带动铰接杆,铰接杆拉动固定杆,固定杆带动转动盘,转动盘通过连接杆带动收纳箱,使得收纳箱可以进行旋转,将远离工作人员的一侧,调整至靠近工作人员的一侧,从而方便进行安放硅钢片。
2021-12-15 179 6.8

研究了取向硅钢制备过程中常见的两种冷轧工艺,主要研究了一阶段冷轧与两阶段冷轧+中间退火工艺对初次再结晶组织及织构的影响.结果表明:采用两阶段冷轧+中间退火工艺制备以Cu2S为主抑制剂的取向硅钢,其初次再结晶平均晶粒尺寸为18.1μm,高斯晶粒的体积分数为0.6%,迁移性强的重位点阵晶界(Σ5+Σ9)和高能晶界(20°~45°取向偏差角)所占比例分别为1.8%和50.4%.与一阶段冷轧工艺相比,其初次再结晶晶粒较细,且高斯晶核与特征晶界所占的比例较高,有利于高斯晶粒发生二次再结晶. Two common cold-rolling processes of grain oriented silicon steel and the effects of the single stage cold rolling and tw o-stage cold rolling w ith intermediate annealing processes on the primary recrystallization microstructure and texture w ere investigated. The results revealed that for the grain oriented silicon steel prepared under the tw o-stage cold rolling process w ith intermediate annealing w ith Cu 2 S as the main inhibitor,the average grain size of the primary recrystallization micr... 
2014-02-28 178 5.8

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