硅钢资料

【作者】 朱传芳； 潘恒韬； ...

本发明揭示了一种高硅无取向电工钢及其生产方法。该方法包括：1）钢水冶炼并连铸成坯；2）加热并保温，之后热轧得到热轧卷板，其中粗轧出口温度940±20℃，精轧终轧温度840±20℃，卷取温度650±20℃；3）常化，常化温度((732~742)+3000[Si])℃，常化时长4min~5min；4）常化后直接进行冷轧，而后连续退火和涂层，退火温度940℃~990℃且退火时长1.5min~3min；5）涂层处理后的钢板加工成型，而后进行去应力退火，退火温度为((761~766)+3000[Si])℃。如此，在保证磁性能的同时，解决了冷轧难度大的问题。

为满足用户对无取向电工钢中硫含量的要求,采用CaO-CaF2复合渣系为脱硫剂,利用RH投入法对无取向电工钢进行深脱硫试验。试验结果表明,RH精炼渣成分控制在w CaO43%~51%、w Al2O325%~31%、w MgO4%~6%、w SiO29%~12%、w(FeO+MnO)3%~6%,在脱硫剂加入量为6~8 kg/t时,钢中平均硫含量从32×10-6降低到18×10-6,RH平均脱硫率为43.3%,最高达47.1%。利用KTH模型计算精炼终渣平均硫容量为0.003 1,RH精炼结束时渣-钢间实际平均硫分配比从14增加到52。 In order to satisfy the requirements of consumers on sulfur content in non-oriented electrical steel,taking( CaO-CaF 2) based flux as desulfurizer,industrial experiments on deep desulphurization of non-oriented electrical steel were carried out during RH process. The results show that as the compositions of refining slag are appropriately controlled with w CaO of 43% ~ 51%,w Al2O3 of 25% ~ 31%,w MgO of 4% ~ 6%,w SiO2 of 9% ~ 12%,and w( FeO + MnO) of 3% ~ 6%,and the desulfurizer added are at 6 ~ ... 

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。

广泛应用于电子电力行业的取向硅钢材料的磁性能与其晶体取向密切关联，对取向硅钢晶体衍射花样的研究非常重要.采用理论计算的方式研究了取向硅钢的晶体衍射花样特征，并绘制了取向硅钢的高斯织构理论极图、理论单晶透射电子衍射斑点花样和理论电子背散射衍射(Electron backscatter diffraction, EBSD)菊池花样.取向硅钢理论单晶衍射花样不仅可以为以后标定样品实测晶体衍射花样提供一种简单快捷的方法，也可以为样品检测提供一种标准.这种研究方法不仅限于取向硅钢，也被期待应用于其他材料晶体衍射花样研究. The magnetic properties of oriented silicon steels which are widely used in electronic and power industries are closely related to their crystal orientations, so it is very important to study the crystal diffraction patterns of oriented silicon steels. The characteristics of crystal diffraction patterns of oriented silicon steels are studied by means of theoretical calculation. The theoretical pole figures, theoretical single crystal transmitted electron diffraction patterns and theoretical elec... 

对低温加热工艺生产的普通取向(common grain-oriented,CGO)硅钢的高温退火过程进行了中断实验,材料为含3.0%Si、0.5%Cu、0.009 8%S(均为质量分数)的以Cu2S为主抑制剂的普通取向CGO钢。原始板坯厚度为230 mm,于1 200℃均热后经4道次粗轧、7道次精轧至2.3mm;热轧板采用两次冷轧法轧至0.3mm,中间完全脱碳退火,最后于1 200℃高温退火。最后样品的磁性能:铁损P17/50为1.182W/kg,磁感应强度B8为1.897T。借助配有EDAX OIM电子背散射衍射(EBSD)系统的ZEISS SUPRA 55VP扫描电子显微镜,对高温退火过程中高斯晶粒的演变进行了研究,结果表明:升温过程中晶粒尺寸增长缓慢,650℃时取向分布函数(ODF)图出现高斯织构组分,但强度很弱,高斯晶粒偏离角小于9°;950℃时高斯晶粒平均生长速度超过其他晶粒;950~1 000℃时高斯晶粒异常长大,偏离角降至约3°;在950℃之前高斯取向晶粒相比于其他晶粒没有尺寸优势。 The high-temperature annealing process of common grain-oriented(CGO)silicon steel was investigated by interrupting test.The samples were rolled from CGO silicon steel slab under low reheating temperature.The CGO silicon steel,taking Cu2S as the main inhibitor,contains3.0%Si,0.5%Cu,and 0.0098%S.The original casting slab is 230mm in thickness.After 1 200℃reheating,four-pass rough rolling and seven-pass finish rolling were conducted to make the thickness of the slab get to 2.3mm.Then the hot rolled... 

采用拉伸试验和显微组织观测的方法确定了GTN损伤模型中的9个损伤参数,运用GTN损伤模型对冷轧硅钢薄板边部缺陷的扩展及边裂的产生进行了有限元模拟,并与预置缺口的钢板轧制试验进行对比。结果表明:轧制过程中边部缺陷是造成钢板边部裂纹萌生和扩展的一个重要原因,GTN损伤模型可用来预测含边部缺陷硅钢薄板在冷轧过程中边裂的产生;预测结果与试验结果基本一致。 The crack initiation and propagation of silicon steel strip with edge defect during cold rolling process was studied by using GTN damage model in this paper.Nine damage parameters in GTN model were identified by tensile testing and microstructure observing,and then the FE simulation of edge defect evolution of silicon steel strip during rolling process was conducted on the base of GTN damage model,and then the results were compared with rolling experimental results.The results show that the edge... 

本发明涉及码垛装置技术领域，且公开了一种电机硅钢片加工用码垛装置，包括底板，所述底板的顶面活动连接有夹板，所述底板的顶面固定安装有固定板，所述固定板的中部活动连接有螺纹杆，所述螺纹杆的表面固定安装有齿轮一，所述底板的顶面固定安装有固定轴，所述固定轴的顶端活动连接有齿圈。该电机硅钢片加工用码垛装置，齿圈在旋转时带动啮合齿旋转，通过啮合齿与齿轮一的啮合带动齿轮一转动，齿轮一在转动时通过与夹板底端的啮合，可以带动三个夹板同时移动，从而可以改变三个夹板之间的面积值，从而实现装置可以对不同规格的硅钢片进行码垛，操作简单，降低了操作人员的劳动强度。

本发明公开了一种适宜缠绕式加工的低铁损无取向硅钢及其生产方法，属于硅钢生产技术领域。本发明的无取向硅钢包括以下质量百分比的元素：Si：1.5～2.5％，Mn：0.15～1.0％、Als：0.5～1.5％，其余为Fe及不可避免的杂质。其生产工艺步骤为：铁水预处理、转炉冶炼、真空处理、连铸；加热热轧；常化处理；冷轧、退火；保温、冷却；涂覆绝缘层。本发明通过对无取向硅钢的组分及其配比，结合工艺操作进行优化，能够生产得到电磁性能及延伸率均优异的无取向硅钢，从而能够有效满足电工钢缠绕式加工及使用需求，且其制造工序流程短、成本相对较低。

本实用新型涉及一种硅钢切边重卷机组，包括依次衔接布置的开卷机、入口穿带装置、入口转向夹送辊、入口剪、切边单元、出口转向夹送辊和卷取单元，所述切边单元包括沿带钢运行方向依次衔接布置的切边夹送辊、入口稳定辊、切边剪和出口稳定辊，所述切边剪的废料出口侧衔接布置有碎边剪，所述碎边剪的废料出口侧配置有切边废料输出装置。本实用新型提供的硅钢切边重卷机组，采用切边剪+碎边剪的组合对带钢进行切边操作，避免了传统的废边卷取方式，能较好地适用于硅钢切边操作。采用切边夹送辊与入口稳定辊和出口稳定辊配合，能显著地提高切边操作时带钢运行稳定性以及保证带钢切边质量，可相应地提高生产效率。

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... 

以水氯镁石为原料,采用氨法沉镁-煅烧-添加剂的方法制备硅钢级氧化镁。考察了反应温度、反应pH值、陈化时间对中间体氢氧化镁纯度及转化率的影响;研究了煅烧温度和煅烧时间对氧化镁水化率的影响及添加剂的量对氧化镁悬浮性能的影响。控制实验条件为:反应温度55℃,pH值为9.5,陈化时间2h,煅烧温度1050℃,煅烧时间2h,添加剂量为0.8%,制得氧化镁的纯度为98.99%、水化率为2.92%、悬浮性能为3mm/h,达到硅钢级氧化镁的要求。 Using bischofite as raw material,the preparation of magnesium oxide with silico-steel grade was studied.The effects of reaction temperature,reaction pH value and aging time on the intermediate magnesium hydroxide purity and conversion rate were studied.Calcinations temperature,calcinations time relationship to the hydration rate of MgO and amount of additive to the suspension performance of MgO were investigated.The results indicated that the optimum technological conditions were as follows:reac...