硅钢资料

为了确定普通冷轧取向硅钢最优的中间完全脱碳退火工艺,在其一次冷轧后进行5种不同工艺的脱碳退火处理,借助扫描电镜及电子背散射衍射技术研究了不同工艺脱碳退火后的组织、织构和脱碳效果。结果表明:经5种工艺脱碳退火处理后,初次再结晶的平均晶粒尺寸均约为19μm,且不随退火温度和时间的变化而变化;经840℃×10min工艺退火后的晶粒最均匀,高斯织构位向更准确,高斯织构面积分数最多,为3.1%,可将碳脱至0.003 5%。 In order to determine the optimal intermediate complete decarburizing annealing processes for common grain-oriented(CGO)silicon steel,five kinds of intermediate decarburizing annealing processes were conducted,the microstructure,texture and decarbonization after different decarburizing annealing processes were studied by scanning electron microscopy and electro back-scattered diffraction(EBSD)technology.The results show that the average grains sizes of primary recrystallization were about 19μm a... 

本发明涉及一种超纯净无取向冷轧硅钢中非金属夹杂物形貌的原位观察方法，包括如下步骤：制备无取向冷轧硅钢样品，将待测试面用打磨至1000#，使样品表面平整光滑，并进行机械抛光和表面清洗。对处理好的样品在电化学工作站上进行电化学腐蚀，电解液为：1~8wt%氯化物MCl溶液，余量为去离子水，通入CO2气体至饱和，加入适量NaHCO3和三乙醇胺作为稳定剂调节pH值将其稳定在6.0~6.5之间。电化学设定参数：开路：0.5~2h，动电位极化测试：扫描速率:0.1mV/S~1.0mV/S，测试区间：VS.SCE‑0.8V~0.2V，测试温度为：10~25℃。取不同区间内做完电化学腐蚀的样品用去离子水冲洗，吹干。通过扫描电子显微镜+能谱仪对非金属夹杂物的形貌进行原位观察和成分分析。

针对薄板坯连铸连轧流程结合\"获得抑制剂法\"所制备的低温高磁感取向硅钢,通过热力学计算研究了AlN与MnS在连铸与均热过程中的析出规律与行为。计算结果表明,连铸过程中AlN在凝固后的高温α相中便可能析出,而MnS仅可能在凝固后的α+γ两相区内析出。钢中AlN与MnS在均热过程中均处于部分固溶与部分析出的状态。后续高温渗氮处理后初次晶粒的异常长大并不明显,表明渗氮处理前钢中固有抑制剂的数量相对充足。 The precipitation behavior of MnS and AlN in low-temperature high magnetic induction grain-oriented silicon steel produced by thin slab casting and rolling process with\"acquired inhibitor method\"during continuous casting and soaking was studied by thermodynamic calculation.The calculated results show that AlN is likely to precipitate in ferrite after solidification.However,MnS can precipitate only in the two phase region of ferrite and austenite.Meanwhile,MnS and AlN in the steel can not be comp... 

采用CVD法制备6.5%Si高硅钢,介绍了具体的制备工艺过程,研究了温度对渗硅速率和试样质量减轻的影响,同时分析了扩散时间对高硅钢中硅分布的影响。结果表明:在CVD反应过程中,反应温度高于1050℃将大大提高渗硅速率,但当温度大于1200℃后,渗硅速率趋于稳定;渗硅后,试样会减轻、减薄,随着温度升高,试样质量减轻的速率逐渐增大,在1200℃左右趋于稳定;扩散时间越长,硅分布越均匀,结合制备效率进行考虑,满足Δw表-中/b≤5的时间为适宜的扩散时间。 6.5%Si high silicon steel was manufactured by using CVD method and the process was introduced,the influence of temperature on the siliconizing rate and quality reducing rate,diffusion time on silicon distribution were investigated.Results as follows: the siliconizing rate will increase quickly when the temperature is higher than 1050 ℃,but the siliconizing rate will become steadily as the temperature up to 1200 ℃;The quality reducing rate will increase with the elevating of temperature and the r... 

取向硅钢利用析出物作为抑制剂,抑制初次再结晶晶粒的长大,抑制剂是取向硅钢发生二次再结晶的基本条件之一。文中通过低温板坯加热技术制备取向硅钢,采用透射电镜(TEM)观察并研究了高温退火阶段抑制剂的演化过程。结果表明,渗氮后形成的非晶态Si3N4析出物不稳定,在700～750℃退火升温阶段转化为(Al,Si)N;(Al,Si)N颗粒在800℃发生团聚,随后长大并粗化;(Al,Si)N是低温取向硅钢主要抑制剂,随退火温度的升高,(Al,Si)N抑制力大幅下降。 Precipitates as inhibitor are used to inhibit the grain growth of primary recrystallization in grain-oriented silicon steel,and inhibitor is one of the basic conditions for occurring of secondary recrystallization.The grain-oriented silicon steel was produced by low temperature slab heating and nitriding technique.The evolution of inhibitor was observed by transmission electron microscopy.The results show that Si3N4 particles are precipitated after nitriding,and Si3N4 particles are amorphous and... 

本发明涉及一种常化后免酸洗生产取向硅钢的方法，取向硅钢的生产工艺路线为：冶炼→连铸→热轧→常化退火→拉伸矫直→抛丸→冷轧→脱碳退火→渗氮→涂MgO→高温退火→热拉伸平整及涂绝缘膜；本发明在常化退火后通过物理方法去除带钢表面的氧化铁皮，且效率高、效果好、操作简单、易于控制；与常规工艺相比，省去了酸洗及后续废酸处理工作，排除了酸雾对环境的污染，消除了取向硅钢带因酸洗而产生的潜在缺陷，产品质量更加稳定可靠。

运用电子背散射衍射(EBSD)和X射线衍射(XRD)技术对硅钢热轧板的织构在板厚方向的分布进行了研究,并分析了两种织构测量方法的特点。EBSD技术能直观给出板厚方向的微观织构,XRD能得到钢板的宏观统计织构信息,结合两种技术的分析,能更直观更精确的研究不同织构在板厚方向的分布。 The texture distribution along the thickness of the silicon steel has been investigated by electron backscatter diffraction(EBSD) and X-ray diffraction(XRD) technique.The characteristics of two technique of texture analysis have been investigated.Combined the two techniques,the texture distribution along the thickness of the silicon steel could be realized distinctly and accurately. 

本发明涉及一种百吨级超低氮硅钢大钢锭的制造方法，涉及硅钢的制造技术领域，包括以下步骤：取优质废钢、生铁配料作为炉料，电炉冶炼，电炉冶炼，LF精炼、两次VD脱气，精炼包真空吹氩直注的工艺方法。其优点在于，本发明提供的百吨级超低氮硅钢大钢锭的制造方法，采用本方法制造的百吨级大型超低氮硅钢钢锭，成分全部满足规范要求，其中氮含量控制在25ppm以下，氧含量控制在10ppm以下，氢含量控制在0.7ppm以下，硫含量控制0.002％以下，磷含量控制0.006％以下，铝含量控制0.020％以下。

【作者】 姚昌国； ...

本实用新型公开了一种用于硅钢板带加工的整平装置，包括底座，所述底座的上表面固定设有下安装座，所述下安装座上设有下整平机构，所述底座的上表面固定连接有门型安装架，所述门型安装架的顶部贯穿设有螺杆，所述螺杆的底面设有上安装座，所述上安装座的正面通过轴承座转动连接有第三转轴，所述第三转轴的外表面固定连接有调向齿轮，所述上安装座上设有上整平机构。本实用新型通过设置通过设置多组上整平辊和下整平辊，改善该装置的整平效果，且通过转动齿轮与调向齿轮的设置，使该装置的多个上整平辊同步转动，且相邻两个整平辊之间的间隙可以设置的较小，使该装置结构紧凑，提高空间利用率。

利用OM、SEM、TEM等实验方法研究了卷取工艺对一种新型含铜无取向电工钢晶粒度和析出相的影响。结果表明,该电工钢热轧带卷取后的晶粒尺寸为18～24μm,在卷取过程中,热轧带中有一定数量的第二相析出,经EDS能谱及选区电子衍射分析,这些析出相主要为AlN。随着卷取工艺的变化,该电工钢的晶粒度大小变化不明显,析出相的类型、尺寸大小不发生改变,体积分数发生一定的改变。 The effects of coiling process on grain size and precipitates of a new copper-bearing non-oriented electrical steel were investigated by OM,TEM and other experimental method.The results show that the grain size of hot-rolled bands after coiling is 18～24 μm.The second phases precipitate during coiling process.They are mainly AlN by EDS spectra and selected area electron diffraction.With the change of coiling process,the grain size of the electrical steel does not change significantly;the type and... 

研究二次冷轧压下率对于硅的质量分数为3.0%的无取向硅钢组织结构和磁性能的影响。结果表明:当第二次冷轧压下率从0变化至16.7%时,铁损逐渐增加,磁感逐渐降低。当第二次冷轧压下率大于16.7%时,随压下率的增加,铁损逐渐减小,磁感逐渐增加。当第二次冷轧压下率大于38%时,二次冷轧法所能获得的磁性能明显优于一次冷轧法。 Effect of double cold reduction on magnetic,microstructure and texture of 3.0% Si non-oriented silicon steel sheets was investigated.The results show that the iron loss increases and magnetic induction reduces as the percentage redcution in secondary cold rolling changes from 0 to 16.7%.The core loss can be reduced remarkably,and magnetic induction can get a little benefit if the percentage redcution in double cold reduction is higher 16.7%.In case of higher than 38% of the percentage redcution ...