钢厂
热轧组织对无取向硅钢织构的影响
采用X射线衍射仪分析无取向硅钢冷轧织构和再结晶退火织构的演化,研究了热轧组织对无取向硅钢织构以及磁性能的影响。结果表明,具有均匀、粗大晶粒组织的热轧板,冷轧形成更多的剪切带,导致成品板形成高的高斯织构组分,并提高了{100}织构强度,降低了γ纤维织构,最终导致成品磁感应强度升高,铁损下降。 The texture evolution of non-oriented silicon steel during cold-rolling and recrystallization annealing was investigated by X-ray diffractometer.The effects of hot band microstructure on the texture and magnetic properties of non-oriented silicon steel were analyzed.The results show that more shear bands appear during cold rolling due to homogeneous coarse grain in hot band.So strong{110}<001> texture after recrystallization annealing forms.At the same time,the {100} texture components inc...
CN202121026669.XCD型硅钢片铁芯性能测试工装
本实用新型涉及硅钢片铁芯性能测试技术领域,公开了CD型硅钢片铁芯性能测试工装,包括:机台,上部后侧固定有竖直向上的后侧板;托板,水平设置在所述机台上方;夹持机构,设置在所述机台上,所述夹持机构包括:第二气缸,其驱动杆端部固定套接有夹持块,夹持块外端部固定有橡胶缓冲块;橡胶垫,固定在所述托板右侧上部。本实用新型通过设置第一气缸驱动连接于托板,可以先根据硅钢片的厚度,通过操作气缸控制器控制第一气缸工作带动托板在机台上进行升降高度,从而调整托板与夹持块的高度差,提高装置的实用性和广泛性,较为实用,适合广泛推广和使用。
高硅FeSi合金层对普通取向硅钢磁性能的影响
目的提高硅钢的磁性能。方法采用多弧离子镀技术,在普通取向硅钢薄板两面沉积高硅FeSi合金层制得高硅梯度硅钢,并进行热处理,观察其显微组织,测量磁性能。结果退火态高硅梯度硅钢表面的高硅FeSi合金层与基底结合紧密,均匀致密。高硅梯度硅钢中硅含量呈梯度分布,最表层硅质量分数为11.0%,随着深度增加,硅含量逐渐降低,在距表面20μm处硅质量分数仍能达到6.5%。沉积态高硅梯度硅钢的电阻率ρ、低频铁损P10/50、高频铁损P10/1k及磁感应强度B8分别为68.6μΩ·cm,0.82W/kg,83.3 W/kg和1.73 T,退火后分别为63.1μΩ·cm,0.44 W/kg,54.38 W/kg和1.89 T。结论由于表层高硅FeSi合金层的存在,梯度高硅钢的低频磁学性能良好,但高频损耗需进一步改善。 Objective To improve the magnetic properties of silicon steel. Methods FeSi alloy coatings with high-silicon content were deposited on the surface of common grain-oriented silicon steel by cathodic arc plasma evaporation,and then a kind of high silicon gradient steel was prepared. The morphologies,content and magnetic properties of the samples were tested. Results FeSi alloy coatings were featured with compact microstructures and excellent adhesive quality with the substrates. The silicon conten...
取向硅钢连续退火的工艺与设计
分析了影响脱碳效果和结晶行为的各种要素及其相互制约关系,提出了Hi-B连续退火工艺曲线,总结得出快速加热及合理稳态气氛是实现工艺制度的关键。结合实际工程,介绍了在连续退火炉设计中快速加热和气氛设计的考虑方法,并指出随着Hi-B产品的发展,如何改进这些方法将是连退工程研发的方向之一。 The factors which affect decarbonization and crystallization and the mutual restriction between them were analyzed.A complete continuous annealing process for Hi-B was put forward.As a result,the rapid heating and the proper steady atmosphere were two important factors.According to an actual project,the consider methods for designing rapid heating and proper steady atmosphere were introduced,and it is pointed that with the development of Hi-B technique,how to improve these techniques would be on...
CN202111458743.X一种超短流程稀土取向硅钢及其制备方法
本发明属于冶金技术领域,涉及一种超短流程稀土取向硅钢及其制备方法,化学组成及其重量百分比为Si:2.0~4.5%,C:≤0.003%,Y:0.001~0.05%,Mn:0.15~0.35%,Al:0.03~0.04%,Cu:0~0.5%,S:0.025~0.04%,N:0.011~0.013%,其余为Fe和不可避免的杂质元素。制备工艺包括:钢水冶炼、薄带连铸、冷轧、再结晶退火。与常规生产方式相比,取消了连铸、粗轧、热连轧、常化和脱碳退火等工序,极大简化了生产流程。通过添加稀土元素钇,促进了抑制剂的析出,还显著细化了薄带连铸硅钢的凝固组织,提高组织均匀性,获得了均匀细小的等轴晶,优化了取向硅钢的性能。
电感耦合等离子体质谱法测定硅钢中痕量铜和镍
研究了应用电感耦合等离子体质谱法(ICP-MS)测定硅钢中痕量铜和镍的分析方法。采用硝酸分解样品,通过内标校正和基体匹配消除了基体干扰的影响,同时根据测量时存在的质谱干扰情况,选择同位素65Cu和60Ni作为测定元素和通过调节仪器参数使双电荷离子的产率最低,以减少带来的干扰。该方法用于硅钢中痕量铜和镍的测定,所得的结果与ICP-AES法测定结果完全吻合,各元素测定结果的RSD值小于5%,加标回收率为97.3%~100.3%。 A method for the determination trace copper and nickel in silicon steel by inductively coupled plasma mass spectrometry(ICP-MS) was studied.The samples were dissolved in HNO3.The effect of matrix interference was eliminated by internal standard correction and matrix matching.Meanwhile,according to the mass spectral interferences in determination,the isotopes including 65Cu and 60Ni were used as measuring elements.The yield of double-charge ions were minimized by adjusting instrumental parameters...
电工钢冶炼过程中硫含量控制
介绍了攀钢冶炼电工钢过程硫含量变化以及过程回硫、增硫情况,采取针对性措施,如:提高铁水装入量、转炉采用石英砂代替复合造渣剂造渣、RH脱硫等,降低钢中硫含量。结果表明:采取相应措施后,电工钢炼成率大幅提高,成品w[S]≤0.008%的比例由改进前的62%提高到92.4%,取得了明显的冶金效果。 The resulfurization and the change of sulphur content in production of electrical steel is analyzed.The targeted measures have been taken,such as increase the loaded quantity of liquid iron,quartz sand replaces the composite slagging agent in the converter and RH desulfurization to decrease the sulphur content of the steel.The result shows,after the measures have been taken,the finished product ratio of electrical steel increase a lot.The ratio of sulfur content of finished product no more than ...
无取向硅钢C6厚涂层性能的影响因素
本文介绍了无取向硅钢C6涂液的性能,研究了配水量、固化程度和涂层厚度等因素对无取向硅钢C6涂层性能的影响。结果表明,随着配水量的增加,完全固化所需的时间增加,涂液固体含量降低,涂层厚度减小;随着固化程度的提高,涂层硬度先增大然后趋于恒定,而柔韧性逐渐变差,在过固化后急剧恶化;涂层厚度对涂层的表面外观、附着性和绝缘层间电阻均有显著影响。 Based on the introduction about the performance of C6 varnish for non-oriented silicon steel sheets,effects of water amount,curing degree and coating thickness are discussed. Results show that with the increase of water amount,the time required to cure completely extends,and both the solid content of C6 varnish and the coating thickness decrease. As the curing degree increases,the hardness of the coating increases first and then tends to be constant,however the flexibility degenerates,especially...
CN202121973852.0一种点火器线圈硅钢片结构
本实用新型涉及一种点火器线圈硅钢片结构,包括E型件和I型件,其特征在于:所述E型件和I型件可组合成日字形;所述E型件和I型件的棱面外周顶面和底面均设置切棱;所述E型件包括竖边和设置在竖边三个横边,其中所述竖边的转角位置圆角处理,竖边外侧为弧形边;所述竖边与三个横边接触的位置设置孔眼;位于中间位置横边外侧设置凹部,位于下端横边外侧设置凸部;所述I型件靠近E型件一侧中间和下端位置设置凸部和凹部,其上端与E型件上端横边外侧重合接触。本实用新型设计新颖,改进巧妙,由于E型件具有弧形边可以有利于拾取,方便工作操作,同时采用采用接触的方式接触,增加了组合体的稳定性。
CN202011472273.8一种磁性优良的高磁感取向硅钢的气氛控制工艺
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。
CN202110699437.9一种高硅钢的电渣重熔生产方法
一种高硅钢的电渣重熔生产方法,电渣重熔过程渣系组成为,按重量计,CaF255%~59%、Al2O326%~30%、CaO7%~10%、SiO21%~9%,所述高Si钢,按重量计,钢中含有Si0.5%~2.0%,Al0.01%~0.05%。采用本专利设计的渣系成分配比,保护气氛电渣的情况下,可有效控制Si含量0.5‑2.0%的高Si钢电渣过程不增铝。
双辊连铸法制备硅钢薄带的组织和性能
采用双辊连铸工艺制备了硅的质量分数分别为0.5%,1.0%,3.0%,4.5%的硅钢薄带,用光学显微镜观察其组织,并研究了后处理工艺对薄带组织和性能的影响。结果表明:硅含量为0.5%和1.0%的薄带适合采用一次冷轧+850~950℃退火的后处理工艺,而硅含量在3.0%以上的薄带适合采用二次冷轧+950℃退火的后处理工艺;硅含量为3.0%和4.5%的薄带在冷轧并950℃退火后,其磁性能最佳,铁芯损耗约为4.30 W·kg-1,磁感应强度约为1.68T。 Silicon steel thin strips with silicon content of 0.5wt%,1.0wt%,3.0wt%and 4.5wt%were prepared by twin-roll continuous casting process,and the microstructure of the strips were observed by means of optical microscopy,and on the basis,the effect of post-treatment process on microstructure and properties of the strips was studied.The results show that the post-treatment process of one-time cold rolling and annealing between 850—950℃was suitable for the strips with silicon content of 0.5wt%and 1.0wt...

