硅钢资料

6.5%(质量分数)Si高硅钢具有优异的软磁性能和广阔的应用前景,然而其室温脆性和低的热加工性极大地制约了它的发展。近年来,人们对高硅钢制备技术的研究已经取得了很大的进展,如何通过织构的优化提高高硅钢的磁性能越来越受到人们的关注,归纳和总结了不同工艺制备的高硅钢中的织构演变规律和特点,以及对应的典型磁性能。 6.5wt% Si high silicon steel has excellent soft magnetic properties and wide application prospect.However,the brittleness of room-temperature and poor workability of cold rolling limit its deve-lopment.Recently,the researches of the preparations of high silicon steel have been already made great breakthroughs,and then,more and more attentions are focused on how to optimizing the texture of high silicon steel so as to obtain the best magnetic properties.The evolution of textures of 6.5% Si high s... 

一种分步调控制备高磁感高强度无取向电工钢的方法，按以下步骤进行：(1)按设定成分采用转炉冶炼钢水，制成连铸坯，含C0.001～0.008％，Si1.5～4.8％，Cu0.5～2％，Ni0.5～1.5％，Al0.2～1％，Mn0.2～1.5％，P＆lt;0.005％，S＆lt;0.005％，其余为Fe；(2)将连铸坯置于均热炉保温，多道次热轧相邻两道次间隔时间为30～180s；空冷；(3)常化处理；(4)多道次冷轧；(5)退火处理；(6)时效处理。本发明的方法成本较低、工艺简单，生产的无取向电工钢兼具优异的力、磁性能，能够很好的满足驱动/牵引电机的使用需求。

本发明提供一种超低铝无取向硅钢夹杂物控制方法。该钢种化学成分质量百分比为C≤0.005％，Si：0.25％‑1.50％，Mn：0.15％‑0.55％，P：0.02％‑0.06％，S≤0.005％，Als≤0.005％，余量为Fe及不可避免的杂质。工艺流程为：KR→BOF→RH→连铸。转炉出钢严格控制下渣量，出钢结束加石灰、渣面脱氧剂调渣；RH脱碳结束后，先加低碳低硫硅铁、金属铝或铝钙铁合金复合脱氧，最后加入金属锰、磷铁进行合金化，然后净循环6‑10min，破空出钢运至连铸浇注。得到钢水中主要为SiO2‑Al2O3系夹杂，避免了生成低熔点SiO2‑MnO系夹杂，轧制延展变长，影响晶粒长大；同时也避免了生成高SiO2组分类酸性夹杂，导致耐材的侵蚀。可显著改善钢中非金属夹杂物类型，提高无取向硅钢的性能，并提高了钢水浇注性能。

用于层叠铁芯的电磁钢板为一种在母材钢板(2)的表面具有绝缘被膜(3)的电磁钢板，该绝缘被膜(3)是涂布电磁钢板用涂布组合物而构成的，所述电磁钢板用涂布组合物以特定的比例配合有环氧树脂、第1固化剂及第2固化剂，该第1固化剂由包含具有烷基及烷氧基中的任意一者或两者的酚骨架的酚醛树脂构成，该第2固化剂为从酚醛甲阶树脂及苯酚酚醛清漆树脂中选择的1种以上。

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... 

本实用新型公开了一种镀铝锌硅钢钣冲压装置,包括安装板，所述安装板的上表面延伸至下表面开设有上下管贯通的板件交换槽，所述安装板的上表面且位于板件交换槽的正上方通过固定螺栓固定连接有模座板。本实用新型，通过设置二次镀膜箱，对冲压后的硅钢钣进行二次铝锌镀膜，避免了冲裁面的暴露导致硅钢钣慢性腐蚀，提升了镀铝锌硅钢板的质量和使用寿命，通过设置夹取机构，对硅钢钣自动取放操作，减少了人力操作，提高了效率的同时，提高了设备安全性，通过设置废料回收槽，对冲压产生的边角料进行集中回收在利用，提升了生产过程中的环保性，通过优化结构设计，提高了镀锌硅钢钣的生产效率，降低生产成本。

【作者】 张煜； 朱国辉； ...

取向硅钢热轧板中织构梯度对发展完善的二次再结晶十分关键,通过添加铜可以显著降低取向硅钢板坯加热温度,从而影响热轧板织构分布。利用X射线衍射仪,分析了实验室模拟薄板坯连铸连轧(TSCR)工艺的3种不同铜含量的取向硅钢热轧板织构。结果表明:不同铜含量热轧板表面到厚度1/4处均为弱的热轧织构,热轧板心部主要为{100}面织构;铜含量约在0.4%时,热轧板次表层的{110}<001>织构比例最高,而热轧板心部的{100}<110>织构比例最低;铜含量对热轧织构中{114}<110>和{001}<100>织构发展有显著影响。 The texture gradient in hot rolled grain oriented silicon steel strip is one of the essential factors to achieve a perfect secondary recrystallization.The addition of copper can significantly reduce the slab reheating temperature of grain oriented silicon steel,so as to impact the texture distribution in the hot rolled strip.The texture of hot rolled grain oriented silicon steel strip as-rolled by thin slab casting and rolling process(TSCR) in laboratory with three different copper contents was ... 

为进行磷酸盐系无铬无取向硅钢涂层烧结固化工艺研究,首先对磷酸盐系无铬无取向硅钢涂层进行热重-差示扫描量热(TG-DSC)分析;然后在不同烧结固化温度条件下,测定涂层板温随时间变化曲线;最终获得涂层烧结固化温度与时间(T-t)工艺曲线。通过中性盐雾试验、动电位极化、交流阻抗、涂层附着力以及扫描电子显微镜(SEM)和能谱(EDS)分析验证。结果表明,根据涂层烧结固化温度与时间(T-t)工艺曲线制备的涂层结构致密、性能优异,证明该工艺曲线具有合理性与正确性。 In order to study the curing process of chromium-free non-oriented silicon steel coatings,phosphatic chromium-free non-oriented silicon steel insulating coating was prepared and TG-DSC analysis of the coating was conducted,then the change of the actual temperature of the coated non-oriented silicon steel sheet with time at different curing temperatures was studied. Based on the experiments,the processing curves of curing temperature vs. curing time( T-t) for the chromium-free non-oriented silico... 

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... 

本发明公开了一种酸洗低牌号无取向硅钢的方法，从酸洗线前拉矫机的延伸率设定、酸液浓度、酸液温度、酸洗槽内液位的控制、酸液中铁离子的含量等方面入手，解决酸洗低牌号无取向硅钢的问题。

测试了高强无取向电工钢的S-N曲线,并借助光学显微镜、扫描电子显微镜、透射电子显微镜分析了实验钢组织,疲劳断口形貌和位错结构。结果表明:室温条件下,频率为20Hz,应力比R为0.1,循环10~7周次时,实验钢的疲劳强度为360MPa,疲劳裂纹萌生于实验钢的次表面,裂纹萌生点附近有沿晶开裂现象,疲劳裂纹扩展区域有解理台阶与疲劳条纹,瞬间断裂区是韧性断裂,有大量韧窝。实验钢在循环应力作用下基体中产生了大量位错,并有驻留滑移带终止在晶界位置。 The S-N curve of a high strength non-oriented electrical steel was tested.The microstructure and fatigue fracture morphology and dislocation were analyzed by optical microscope,scanning electron microscope,transmission electron microscope.The results showed that:at room temperature and the frequency of 20 Hz and the stress ratio Rof 0.1,the fatigue strength of the experimental steel was 360 MPa when the cycle was 10~7 cycles.The fatigue crack initiation at the surface of the steel and the interg...