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结合实际生产0.4%Si无取向硅钢,统计了不含Sn和0.025%Sn无取向硅钢的磁性能变化,利用金相显微镜、X射线衍射仪观察分析不同成分下试样的显微组织和微观织构。试验结果表明:Sn元素可以显著降低无取向硅钢的晶粒尺寸,0.025%Sn试样的平均晶粒尺寸比不含Sn减小28.4%;加入Sn元素后抑制了无取向硅钢中不利于磁性能的{111}面织构组分强度,提高了对磁性能有利的{100}面织构组分强度,0.025%Sn与不含Sn相比磁感均值从1.756 T提升至1.768 T,铁损均值从5.476 W/kg降低至5.204 W/kg,明显改善了无取向硅钢磁性能。 In this paper combined with the actual production of 0.4% Si non oriented silicon steel, the magnetic properties of non oriented silicon steel without Sn and 0.025% Sn were counted. The microstructure and microtexture of samples with different compositions were observed and analyzed by metallographic microscope and X-ray diffraction. The results show that: Sn can significantly reduce the grain size of non oriented silicon steel, and the average grain size of 0.025% Sn sample is 28.4% smaller tha... 
2022-01-28 210 5.8

本发明涉及取向硅钢技术领域,且公开了包括以下步骤:步骤一:冶炼,冶炼经转炉和RH精炼后得到钢水,在进行冶炼的过程中通入空气并设置总进气量100‑300Nl/min,且通入的空气中氧含量为20‑21%之间。该磁性优良的高磁感取向硅钢的气氛控制工艺,通过在不同的流程中,加入一定配比的氧气和氮气的含量,有效的提升每个阶段的气氛控制精度,从而得到最终的高磁感取向硅钢达到优良,避免了因气压、流量等因素影响最终高磁感取向硅钢磁力效果,炉渣中FeO含量减少,提高钢回收率和炉衬寿命,进而也起到降低生产成本的效果,且进行精确的气氛控制,使得在进行高磁感取向硅钢的冶炼中,使得冶炼的效果更好,使得冶炼出来的高磁感取向硅钢的磁性更加的优良。
2020-12-14 305 6.8

本实用新型提供了一种变压器硅钢片吊装工具,属于变压器技术领域。其技术方案为:一种变压器硅钢片吊装工具,包括勾体,所述勾体上端设置有吊环,所述勾体下端设置有吊台,所述吊台上设置有阻挡机构,所述阻挡机构设置在所述吊台的底面。本实用新型的有益效果为:本实用新型通过勾体对硅钢片进行起吊,可以有效的防止硅钢片两端卷边,从而减少了变压器空载损耗,阻挡机构可以有效的防止硅钢片在运输过程中从吊台上摔落,从而保护了硅钢片的完整性,提高了使用效率。
2021-03-17 790 6.8

文章以国内某公司硅钢厂连续退火机组1号辐射管加热段为研究对象,分析炉内传热机理,建立并开发了辐射管加热段的传热模型。采用生产实际数据对模型进行了验证,以总燃料消耗量最小为目标,得出该炉段长度方向上燃料的最佳分配机制。所得结论为该公司连续退火机组节能控制提供理论依据。 Taking the radiant tube heating section of No.1 continuous annealing unit in a silicon steel plant of a domestic company as the research object, the heat transfer mechanism in the furnace is analyzed, and the heat transfer model of the radiant tube heating section is established and developed. The model is verified by the actual production data. Aiming at the minimum total fuel consumption, the optimal fuel distribution mechanism in the length direction of the furnace section is obtained. The co... 
2022-01-28 322 5.8

本发明涉及一种控制高牌号硅钢退火产生月牙印缺陷的方法,多次调整硅钢退火线入炉及出炉张力参数,使带钢处于预设悬垂量内;本发明避免高速运行下带钢撞在炉辊上,从而产生月牙印缺陷,提高了产品的质量。
2021-07-09 219 6.8

为了确保硅钢铬酸盐涂料的环保性,需要严格控制涂料的固化工艺,保证涂料固化过程中涂料中的六价铬充分转化为三价铬。对涂料及原料进行热重分析(TG)及差示扫描量热法分析(DSC)。结果表明,MgO与铬酐混合转化为MgCrO4,使六价铬稳定性增强,其中大部分Cr6+转变为Cr3+发生在620~700℃,在450~500℃高于铬酐发生大量失重,因此必须加入还原剂保证涂料中六价铬被充分还原;超过360℃后树脂会发生分解,因此实际板温不能超过360℃;加入了还原剂的整体涂料的失重温度区间主要在260~320℃,因此涂料固化时钢板的实际温度最佳区间为320~360℃。 Because of the silicon steel chromate coating’s environmental requirements,the paint curing process must be controlled strictly to ensure all Cr( Ⅵ) transforms to Cr( Ⅲ). The TG and DSC analyses of the paint are studied. The reaction of MgO and CrO3 would generate MgCrO4,enhancing the stability of Cr( Ⅵ). The most r( Ⅵ) in MgCrO4 changes to Cr( Ⅲ) at 620-700 ℃,while the CrO3 has a large weight loss at 450-500 ℃. The reductant must be added in the paint to make sure the Cr( Ⅵ) could transform suf... 
2014-09-28 482 5.8

本发明涉及一种提高热连轧无取向硅钢厚度精度的方法,包括以下步骤:1)降低粗轧终轧温度和精轧入口温度,减少精轧轧制过程中奥氏体向铁素体相变的体积数,提高轧制力模型预估的精度;2)降低精轧机活套张力,减少因张力带来的厚度扰动。本发明通过降低粗轧终轧温度、精轧开轧温度和调整精轧机张力,可以有效提高精轧机轧制力预估精度,提高厚度精度以及宽度精度。
2021-12-24 286 6.8

采用EBSD检测技术,分析了50W800无取向电工钢在重要生产工序间织构的演变以及织构沿带钢宽度方向上的差异性。结果表明:热轧板织构沿带钢宽度方向上的差异性主要体现在表层织构。带钢边部表层织构主要由旋转立方织构、α纤维织构以及少量的γ纤维织构组成,带钢宽度1/4处的表层织构主要存在高斯织构,带钢宽度1/2处的表层织构主要为(110)面织构以及少量的铜型织构。各处的带钢宽度1/4处和1/2处的织构类型基本一致,都以α纤维织构和旋转立方织构为主。冷轧后,各处的表层织构类型差异较小,均为γ纤维织构和α纤维织构。由板宽边部至中心处织构强度值逐渐降低。退火后,各处织构的组分基本一致,为较强的γ纤维织构和较弱的(100)面织构。各处织构强度值差异较小,变化趋势与冷轧板一致。 The texture of non-oriented electrical steel 50W800 was detected by EBSD technique.The evolution of the texture between important processes and the difference of texture along the width direction of strip were analyzed.The result shows that the difference along the width direction of strip of texture at the surface of hot rolled plate is most obvious.The texture at the surface of strip edge is primarily made of rotating cube texture,αfiber texture and weakγfiber texture.Goss texture is mainly co... 
2014-09-28 304 5.8

对无取向电工钢中的夹杂进行了系统的分析。利用小样电解,采取不同电解液,不同的分离方法对无取向电工钢中稳定和不稳定夹杂物进行了提取、分离和收集。利用扫描电镜(SEM)、X-射线衍射、ICP等对电解分离收集的夹杂物进行了定性和定量分析。 The inclusion analysis of the non-oriented electrical steel has been investigated.By using small sample electrolytic analysis,with different electrolytes and different separation ways,the stable inclusions and unstable inclusions was drew,separated,and collected.With utilizing the methods of SEM,X-ray and ICP,the qualitative and quantitative analysis of inclusions in the non-oriented electrical steel was obtained. 
2023-05-09 268 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。
2021-11-15 412 6.8

本发明揭示了一种高牌号无取向硅钢及其生产方法,生产方法包括冶炼、连铸、热轧、酸洗、切边、常化、冷轧,冶炼最终所得钢水化学成分以质量百分比计为:C≤0.005%、Si≥2.8%、Als0.5~1.2%、Mn0.25~0.8%、P≤0.02%、S≤0.0040%、N≤0.0020%、Nb≤0.0020%、V≤0.0020%、Ti≤0.0020%,其余为Fe以及不可避免的杂质;切边工序对热轧卷板的两侧进行切边,单侧的剪切宽度为10~20mm;常化在罩式退火炉中进行,均热温度为T={(990~1010)‑100×[30×(Si)+20×(Al)]}℃,(Si)为Si的质量百分比,(Al)为Al的质量百分比,均热时间为6h,之后冷却;钢卷在罩式退火炉中冷却至预设温度T0时取出送至冷轧线冷轧,T0为120~180℃,第一道次轧制时的轧制力恒定且轧制力为11000~12000kN。本发明可避免高牌号无取向硅钢在冷轧过程中由于脆性高而导致的频繁断带。
2021-11-10 267 6.8

采用自主研发的脉冲磁场退火装置,在取向硅钢脱碳退火过程中分别施加不同强度的磁场,并采用光学显微镜和X射线衍射仪研究了脉冲磁场脱碳退火后试样的显微组织和宏观织构。结果表明,脱碳退火过程中施加脉冲磁场后取向硅钢的平均晶粒尺寸均增加,当磁场强度为40 mT时,平均晶粒尺寸最大,为13.06μm。此外,取向硅钢试样的立方织构{001}<100>强度减弱,高斯织构{110}<001>和{111}<112>织构增强,有利于获得更好的成品织构和磁性能。 Self-developed pulsed magnetic field annealing device was used to apply magnetic field of different intensities during decarburization annealing of an oriented silicon steel, and microstructure and macro-texture of the specimens after decarburization annealing in a pulsed magnetic field were studied by using optical microscope and X-ray diffractometer. The results show that the average grain size of the oriented silicon steel increases with the application of pulsed magnetic field during decarbu... 
2022-02-28 233 5.8

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