钢厂
CN202110137389.4一种强磁性取向高硅钢极薄带及其制备方法
本发明提供了一种强磁性取向高硅钢极薄带及其制备方法,属于电工钢制造领域,所述强磁性取向高硅钢极薄带包括以下质量百分比的元素:C:0.0045%~0.0060%、Si:4.5%~5.0%、Mn:0.23%~0.32%、S:0.02%~0.03%、Bi:0.03%~0.08%、Als:0.027%~0.035%、Cu:0.02%~0.03%,N:0.008%~0.010%,P<0.005%,其余为铁,其中所述Cu、S、N元素在熔炼时以含硫氮和铜的多核配位化合物的方式加入所述高硅钢;本发明通过对取向高硅钢的原料组分进行设计,采用含硫氮和铜的多核配位化合物和Bi元素作为合金抑制剂,所制得的强磁性取向高硅钢极薄带晶粒细小,组织均匀,具有高磁感应强度,低铁损的优良磁性能。
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...
热轧无取向低硅钢SGG的研制开发及生产
针对川威950的工艺现状,结合无取向低硅钢SGG生产的工艺特点,主要从控制其钢坯加热和轧制以及终轧温度和卷曲温度几方面入手,进行无取向低硅钢生产的工艺控制研究。同时根据近6000吨的生产实践表明,该工艺措施能很好的满足该钢种的需要。 950 process Chuanwei status quo,with non-oriented silicon steel production process features low,mainly from the control of billet heating and rolling and finish rolling temperature and coiling temperature of several aspects,for non-oriented silicon steel production process of low control at the same time According to nearly 6,000 tons of production practice shows that the process measures could well meet the needs of the steel.
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.
硅元素对Fe-(4.5~7.0)%Si高硅钢组织和性能的影响
通过Axio Imager金相显微镜考察4.5%~7.0%硅(质量分数)对高硅钢材料组织形貌的影响,并利用Fe-6.5%Si高硅钢薄板制备方法对其进行轧制,通过DDL50电子万能试验机对阶段产品进行力学性能测试。结果证明,硅含量为5.58%的高硅钢在实验硅含量区间内存在最大延伸率及最小铸态组织晶粒尺寸。 An investigation about the influence of 4.5%-7.0% Si on microstructure and mechanical properties of high-silicon steel was presented.SEM was adopted to take an observation towards microstructure during fabrication,and DDL50electronic universal testing machine was applied into the detection of tensile curves.The results show that silicon steel with 5.58% Si provides the maximum elongation and minimum grain size as cast.
CN202122492038.3一种硅钢片生产用冲压模具
本实用新型公开了一种硅钢片生产用冲压模具,包括承重板,所述承重板的上表面分别设置有缓冲机构和安装架,缓冲机构包括固定连接在承重板上表面的缓冲座,缓冲座的上表面开设有升降腔,升降腔的内部竖向滑动连接有冲压母模,冲压母模上边沿的下表面固定连接有缓冲弹簧,缓冲弹簧的底端与升降腔的内底壁固定连接,冲压母模的内底壁设置有气压顶出机构。该硅钢片生产用冲压模具,在合模过程中,冲压母模能够在缓冲弹簧的作用下沿升降腔缓慢下降,对合模的冲击力进行缓冲,从而达到对整体结构进行保护的目的,在冲压母模停止下降后,合模操作完成,随后液压杆带动冲压公模上升,冲压母模在缓冲弹簧的弹力作用下复位,便于下次冲压加工操作的进行。
高硫硅钢的硫化物析出行为及其微观组织和电磁性能变化
为了弄清楚高硫硅钢中的硫化物析出行为及其对钢的微观组织和电磁性能的影响,以便为工业化生产制定更为合理的硫含量控制标准和采取更为有效措施减轻炼钢生产的硫含量控制压力,结合0.25% Si 无取向硅钢 ,采用非水溶液电解提取 + 扫描电镜/透射电镜观察相结合的方法 ,研究了0.006 8%、0.010 2%、0.025 5% 和 0.035 3% 硫含量条件下,钢中的硫化物夹杂物组成和存在形式及其形貌、种类、尺寸、数量变化,以及相应的热轧、成品试样的微观组织和电磁性能变化。结果表明,随着钢中硫含量的增加,钢中的硫化物逐渐由 MnS→MnS+Cu2S→Cu2S转变,数量逐渐增多,尺寸向高低两个方向发展。相应地,导致热轧再结晶组织劣化和抑制了成品晶粒尺寸长大。随着钢中硫含量的增加,钢的磁感、铁损劣化程度逐渐增大。钢中的硫含量平均每增加 0.01%,涡流损耗、磁滞损耗分别劣化0.24 W/kg 和 0.41 W/kg,而磁感会劣化 0.009 T。但是 ,在硫含量为 0.010 2% 时 ,铁损可以低于 6.0W/kg,而在硫含量为 0.025 5% ... In order to find out the precipitation behavior of sulfide inclusions and the corresponding changes of microstructure and electromagnetic properties of high sulfur silicon steel sheets, so that to design more suitable sulfur concentration controlling limit for industrial manufacture and to release the steel-making difficulty effectively, Based on the change of given sulfur concentration 0.006 8%, 0.010 2%0.025 3% and 0.035 3%, the type and composition, the size and number, and the size distribut...
CN202110112536.2硅钢冷涂后锥度张力收卷工艺
本发明涉及硅钢收卷技术领域,具体公开了硅钢冷涂后锥度张力收卷工艺,将张力卷筒装配到卷取机上,张力卷筒包括转轴和若干支撑板,若干支撑板形成圆筒结构,若干支撑板上连接块底部的斜面形成锥形结构;还包括位于转轴两端的驱动杆,驱动杆转动连接有锥形杆,锥形杆与锥形结构为锥度配合,锥形杆的长度为L;将硅钢头部搭接在张力卷筒外部,当硅钢在张力卷筒外部卷绕4~7圈后,驱动杆移动的速度为V;当锥形杆进入的距离为1/3L时,将速度降低至2/3V;当锥形杆进入的距离为2/3L时,将速度降低至1/3V;当锥形杆全部进入时,驱动杆停止移动,硅钢继续卷绕。本专利公开的收卷工艺利用了锥度张力原理,得到的硅钢卷不会坍塌。
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...

