硅钢资料

本发明公开了一种精确控制高磁感取向硅钢连铸坯Als成分的方法，本发明涉及的主要是高磁感取向硅钢生产过程的连铸工艺环节，负责将高温液态钢水浇注凝固成固态连铸坯。通过采取控制大包下渣、加入足量中间包覆盖剂、采用长水口+石墨垫圈+氩封保护浇注等方法，将精炼结束到连铸过程Als降低量稳定控制在0.0030～0.0045%范围内，稳定了二次氧化程度。通过采用本方法生产的连铸坯Als含量稳定在0.0245～0.0275%范围内，为提高取向硅钢产品的磁感和铁损性能奠定坚实的基础保障。

借助OM、激光共聚焦显微镜、质谱仪和电解萃取等设备和方法，研究了添加微量稀土La（质量分数0.001 1%）的取向硅钢在轧制前采用不同加热保温时间对抑制剂固溶行为的影响。结果表明：当稀土取向硅钢在1 250℃分别保温10、20、30 min后，试验钢晶粒尺寸随保温时间延长有先快后慢的长大趋势；三种抑制剂元素Mn、Cu和Al均发生固溶，保温时间对Mn和Cu两种元素的固溶影响明显，固溶量分别由69.8%和43.7%增加至84.2%和85.2%；随着保温时间的延长，稀土取向硅钢中抑制剂的小尺寸未溶物逐渐减少直至消失，较大尺寸未溶物（300～600 nm）逐渐转变为小尺寸未溶物逐步溶入基体中，数量减少且未溶物的类型由复杂逐渐转变为单一。 In this paper the solid solution behavior of the inhibitor under various holding time in 0.001 1 %La oriented silicon steel during reheating had been investigated by using OM, LM, methods of electrolytic extraction and mass spectrometer. The results showed that grain size of the test steel increased significantly with the holding time prolonging when the rare earth oriented silicon steel was heated to1 250 ℃ and held for 10, 20 min and 30 min respectively, and the growth trend slowed down after ... 

利用XRD和EBSD研究了长轴分别平行于轧向(RD)、横向(TD)和轧面法向(ND)的柱状晶样品在热轧、冷轧及退火过程中的组织、织构演变规律,并分别从几何诱导和取向诱导两个方面分析了晶界的交互作用.结果表明,热轧时由表面摩擦剪切作用引起的组织和织构梯度直接影响并遗传给后续冷轧及退火样品.热轧后,不同样品的初始晶粒形状各向异性差异消失,形成相同的各向异性晶界组织,但晶体学各向异性发生改变,导致随后冷轧、退火组织及织构的变化均不同于直接冷轧的柱状晶样品.研究中特别关注了对磁性能有利的{100}取向区域与晶界的关系. Columnar grains show their special characteristics of morphological and crystallographic anisotropies, and thus markedly influence the microstructure and texture evolution during rolling and annealing process in electrical steel. The rolling and annealing microstructure and texture of three columnar grained samples with the long axes arranged along different directions were investigated by means of XRD and EBSD techniques, and the effects of columnar grain boundaries were analyzed from the view ... 

采用光学显微镜和X射线衍射仪研究了常化退火处理对无取向硅钢热轧板和成品退火板显微组织和织构的影响。结果表明:常化退火处理消除了热轧板中的变形组织,促使变形晶粒完成再结晶;常化退火处理使高斯织构和立方织构易通过再结晶在变形带内形核和长大,可显著降低成品退火板的{111}和{112}不利织构组分的占有率,提高{100}和{110}有利织构组分的占有率,从而有利于提高无取向硅钢成品板的磁性能。 The effect of normalizing annealing treatment on microstructure and texture of non-oriented silicon steel hot rolled plates and final products were investigated by means of optical microscope and X-ray diffractometer analysis.The results show that the deformed microstructure of the hot rolled plates transformed into recrystallized grain after normalizing annealing treatment.The grains of Goss texture and cubic texture crystallographic orientation were formed and grown by recrystallization in the... 

本实用新型涉及热轧设备技术领域，公开了一种高磁感取向硅钢加工用具有定位结构的热轧装置，包括：机体，所述机体的下端固定有底座，所述机体的上端固定有顶板，所述机体的中部开设有安置腔，所述安置腔的两侧内壁开设有滑槽，所述顶板的上端嵌装有液压杆，且液压杆的伸缩端贯穿在安置腔的内部，所述液压杆的伸缩端固定有第一辊座，所述第一辊座的下方安置有第二辊座。该高磁感取向硅钢加工用具有定位结构的热轧装置设置有辊盘，辊盘用于通过螺栓固定内侧的轧辊，使得轧辊能够跟随辊盘的转动而转动，动力传输较为稳定，且轧辊可以从辊盘上进行拆卸，在轧辊损坏进行应急处理时操作更加便利，轧辊便于更换和维护。

在实验室模拟CSP流程制备了不同含量稀土铈(质量分数0~0.018%)的1.2%Si无取向电工钢,并对其进行1 000℃×5min的再结晶退火处理,研究了铈质量分数对无取向电工钢夹杂物、显微组织、再结晶织构和磁性能的影响。结果表明:随着铈质量分数的增加,微细夹杂物数量、再结晶晶粒尺寸、{100}和{110}织构组分、磁感应强度先增后减,{111}织构组分、铁损先减后增;铈的质量分数为0.005 1%时,钢中的夹杂物数量最少,再结晶晶粒尺寸最大,有利织构最多,磁性能最优,铁损P15/50为3.253W·kg-1,磁感应强度B50为1.751T。 Non-oriented electrical steels containing different contents rare earth Ce element(0-0.018wt%) were prepared in the laboratory by simulated CSP(compact strip production)process,and then recrystallization annealing at 1 000 ℃ for 5 min were performed,the effects of Ce content on inclusion,microstructure, recrystallization texture and magnetic properties of non-oriented electrical steels were studied.The results show that with the increase of Ce content,the amounts of fine inclusion,the size of re... 

以一种新的Fe-Si合金制备工艺为出发点,研究了不同放电等离子体快速烧结工艺(SPS)和Si含量变化对Fe-Si合金材料显微组织与磁性能的影响。结果表明,在烧结温度为1 000℃时制备的Fe-6.5%Si合金(质量分数,下同)的综合磁性能较好,其在50Hz下的铁损为0.549W/kg,最大磁感应强度为0.124 3T,矫顽力245.6 A/m,磁导率0.338mH/m。另外,材料的最大磁感应强度随Si含量的增加显著增长,1 000Hz下,Fe-10.0%Si的最大磁感应强度可达到Fe-6.5%Si合金的5倍左右。 The effects of Si content and SPS technology on microstructure and magnetic properties of Fe-Si alloy material were studied in the paper.It shows that the magnetic properties are the best when the content of Si is 6.5wt% and the sintering temperature is 1 000℃,the iron loss is 0.549W / kg in 50Hz,maximum magnetic induction is 0.124 3T,coercive force is 245.6A / m and permeability is 0.338mH / m。And,the maximum magnetic induction increases significantly with the increase of Si.The maximum magneti... 

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... 

根据本发明的一个实施例的粘接涂料组合物，其包含聚乙烯丙烯酸酯，所述聚乙烯丙烯酸酯包含由以下化学式1表示的重复单元和由以下化学式2表示的重复单元，所述聚乙烯丙烯酸酯包含65至90重量％的由以下化学式1表示的重复单元、10至35重量％的由以下化学式2表示的重复单元。

本发明公开了一种取向硅钢高温退火底板，涉及钢卷生产技术领域，解决了钢卷的尺寸变形导致钢卷切边量过大的技术问题。包括应变诱导板，应变诱导板的板面开设有若干凹槽，相邻凹槽之间于应变诱导板的板面形成凸楞，钢卷放置于应变诱导板的板面上，其中部分的钢卷端面支撑于凸楞上，其余的钢卷端面悬置于凹槽上。本发明通过在应变诱导板上设置凹槽与凸楞，钢卷在高温退火过程中同样受重力产生蠕变变形，但蠕变变形按照凸楞所设定的方向进行，从而将产生的不均匀的“大浪”分割成碎化均匀的“细浪”，使得钢卷边部的变形细小、均匀、可控，从而降低了大象脚变形的缺陷影响程度，减小了钢卷的切边量，提高了成材率，同时能够获得良好的边部板形。

本实用新型公开了叠片装置，以及采用该叠片装置的硅钢片收料设备，包括分料装置和本实用新型第一方面实施例的叠片装置，分料装置包括有分料件、上分料传送带和下分料传送带，上分料传送带的一端和下分料传送带的一端与分料件连接，分料件用于将硅钢片分别输送至上分料传送带和下分料传送带，本实用新型第一方面实施例的叠片装置，叠片装置的数量为两个，两个叠片装置上下平行设置，并且分别与上分料传送带和下分料传送带的远离分料件的一端连接。根据本实用新型的叠片装置，以及采用该叠片装置的硅钢片收料设备，可实现硅钢片的自动叠片，提高生产效率。

对低温法生产的以AlN为主抑制剂的Hi-B取向硅钢高温退火过程进行了中断实验,借助EBSD及TEM技术对高温退火连续升温过程中织构与析出物的演变进行了研究。实验结果表明,800℃时ODF图出现高斯织构组分,但强度很弱,高斯晶粒偏离角在10°以上;950~1 000℃时高斯晶粒异常长大,偏离角3~6°;高温退火过程析出物主要有球形、规则立方形及不规则多面体形3种形貌,由于渗N的影响,Zener因子先增大再减小,并且析出物在高斯晶界前沿优先粗化。 The annealing process at high temperature of Hi-B silicon steel using low slab reheat temperature and with AlN as the inhibitor has been studied by interrupting test,and the evolution of texture and precipitates during continuous heating-up in the annealing process at high temperature was analyzed by EBSD and TEM. The results showed that Goss texture appears in ODF at 800 ℃,but the intensity of Goss texture was very weak and the deviation angle was more than10°. Goss grains grow abnormally durin...