硅钢资料

通过对连退线SF炉内的电加热体的焊接技术进行总结分析,得出焊接时应采用的主要方法,采用本焊接方法可提高电加热体的焊接速度和焊接质量,保证了焊接质量和施工工期。 SF furnace for continuous annealing line heating body welding technology summary,the main method used in welding,welding method by using the electric heater to improve the welding speed and welding quality through the implementation of this method to ensure the welding quality and Construction period. 

介绍了攀钢冶炼电工钢过程硫含量变化以及过程回硫、增硫情况,采取针对性措施,如:提高铁水装入量、转炉采用石英砂代替复合造渣剂造渣、RH脱硫等,降低钢中硫含量。结果表明:采取相应措施后,电工钢炼成率大幅提高,成品w[S]≤0.008%的比例由改进前的62%提高到92.4%,取得了明显的冶金效果。 The resulfurization and the change of sulphur content in production of electrical steel is analyzed.The targeted measures have been taken,such as increase the loaded quantity of liquid iron,quartz sand replaces the composite slagging agent in the converter and RH desulfurization to decrease the sulphur content of the steel.The result shows,after the measures have been taken,the finished product ratio of electrical steel increase a lot.The ratio of sulfur content of finished product no more than ... 

本发明涉及涂层液技术领域，且公开了取向硅钢绝缘涂层液，其配比为：二氧化硅10‑15%、硼酸5‑8%、磷酸二氢盐2‑5%、金属溶胶20‑25%、氢氧化铝占5‑6%、有机酸处理的复合盐溶液20‑30%、分散剂0.5‑1%，其余为水，采用硅溶胶作为辅助成膜物，粘结力较强，对附着性影响很大。硅溶胶能够很均匀地包裹在被胶结物质的表面，通过自干成膜，保持了很高的常温结合强度；而磷酸盐涂层的固化是通过受热分解，脱水聚合完成的，低温强度差，中温强度高，充分利用了硅溶胶低温的结合强度和磷酸盐中、高温时的结合性能，消除了常规涂层烘烤时容易出现的收缩、起泡现象，阻止了微气孔的形成，提高了涂层的表面光滑度，粘结强度和稳定性同时保持绝缘涂层的光泽、光滑和稳定性。

本实用新型公开了一种硅钢片用叠压装置，包括机架，机架上设有工作平台，工作平台的顶面上沿轴向并排设有定位块和可远离或者靠近定位块的抵紧块，定位块的水平截面呈L状，且其与定位块之间形成叠压区，叠压区的上方水平设有可竖直移动的传动板，传动板上竖向滑动穿设有若干均匀分布的导杆，导杆的两端均伸出传动板，且顶端设有限位块，底端共同安装有水平设置的压板，导杆上套设有位于压板和传动板之间的弹簧，机架上还设有与传动板和抵紧块均相连的可编程控制器。本实用新型解决了如何能高效且保质地对硅钢片进行叠压的技术问题，具有工人劳动强度低、叠压效率高且叠压质量好等优点。

以CaO-CaF2复合渣系为脱硫剂,在RH精炼过程采用真空投入法进行高牌号无取向电工钢深脱硫工业试验,采用KTH模型计算分析了RH炉渣成分对硫容量CS的影响。研究结果表明,炉渣成分控制在w((CaO))/w((SiO2))为5~7,w((CaO))/w((Al2O3))为1.5~1.8,w((Al2O3))为25%~30%,w((FeO+MnO))<5%,脱硫剂加入量为6~8kg/t时,钢中硫质量分数从平均0.003 1%降低到0.001 8%,最高脱硫率达到47.1%,平均脱硫率为41.7%。 The industrial trials on deep desulphurization of high grade non-oriented electrical steel were finished through using CaO-CaF2complex based fluxes in RH process.Using the KTH model,the effect of refining slag composition on the sulfide capacities was analyzed.The results show that the chemical composition of refining slag(mass fraction,%)is w((CaO/SiO2))between 5to 7,w((CaO))/w((Al2O3))beween 1.5to 1.8,w((Al2O3)) between 25%to 30%,w((FeO+MnO))less than 5%,and the desulphurizer addition level of... 

该电磁钢板用涂敷组合物含有环氧树脂、潜伏性环氧树脂固化剂和热塑性弹性体，上述热塑性弹性体的熔点为100℃～200℃，并且弯曲弹性模量为超过5MPa且为100MPa以下，相对于上述环氧树脂与上述潜伏性环氧树脂固化剂的合计100质量份，上述热塑性弹性体的含量为10质量份以上且低于40质量份。

本发明涉及变压器硅钢片技术领域，尤其是涉及一种变压器硅钢片组件成型冲裁机械及成型冲裁方法，包括基座、收卷装置、挤压装置、滚动装置和冲压装置，所述基座的上端位于四角处均固定连接有竖杆，竖杆的上端共同连接有横板，横板的下端设置有冲压装置，基座的上端设置有收卷装置，基座的上端位于收卷装置的后方设置有挤压装置，基座的上端位于挤压装置的后方设置有滚动装置；通过拉动拉环，带动圆板和推杆挤压第一弹簧，第一弹簧的挤压，使得推杆远离推槽，进而可取出模具，对模具进行更换；通过往凹槽内加入放置板，防止压板在撞击模具时，对模具进行支撑，防止模具发生变形。

对应用动态加热进行短时温度退火的取向电工钢进行了二次再结晶研究。所进行研究的实验用取向电工钢是经过终冷轧和后续罩式退火后的一条工业化生产线生产的。研究结果表明,运用短时热处理条件可引起研究钢完全的异常晶粒长大。在实验室处理的材料的织构和金相组织与工业化生产的经过终退火而获得的相同的取向电工钢类似。但是,在实验室处理的取向电工钢的二次再结晶的矩阵中可观测到\"寄生\"晶粒。从磁性观点看,这些\"寄生\"晶粒含有不理想的{111}取向织构。 The present study was made to investigate secondary recrystallization in grain-oriented steels annealed at short time temperature exposures with application of dynamical heating.The investigated GO(Grain Oriented) steels for experiments were taken from one industrial line after final cold rolling reduction and subsequent box annealing.It was shown that application of short time heat treatment conditions could lead to complete abnormal grain growth in the investigated GO steel.The texture and mic... 

分别采用传统冷轧轧制液和纳米TiO₂的冷轧轧制液,对无取向硅钢板进行了四辊冷轧实验.重点研究两种冷轧轧制液的轧制润滑性能和对轧后硅钢薄带表面质量和耐蚀性能的影响.通过场发射电子显微镜和能谱仪对使用两种轧制液轧后得到的硅钢薄带表面形貌和成分进行了分析.给出了轧制液中TiO₂纳米粒子在轧制过程中的抗磨减摩机理.在轧制载荷较高时,纳米TiO₂轧制液具有优良的轧制润滑性能并能显著改善轧后硅钢薄带的表面质量.同时在高载荷作用下,TiO₂纳米粒子被压入硅钢薄带基体,形成一个滑动系来支撑载荷,从而使润滑膜的耐磨性提高. Non-oriented silicon steel strips were rolled on a four-high cold rolling mill lubricated by a traditional cold rolling liquid and a nano-TiO₂ cold rolling liquid,with emphasis on studying the rolling lubrication performance of both the liquids and their effect on the surface quality and corrosion resisting property of the silicon steel strips.The surface micrograph and composition of the silicon steel strips after being rolled with both the liquids were characterized by field emissio... 

采用非水溶液电解方法来提取无取向硅钢中夹杂物。通过扫描电镜(SEM)观察结果表明:无取向硅钢中主要夹杂物为六棱柱的AlN、不规则硅酸盐及球状的铁的硫化物和氧化物,其中AlN夹杂尺寸在1~5μm,数量较多,还有部分AlN的复合夹杂。进一步研究了AlN复合夹杂形成机理,采用了Thermo-Calc热力学计算软件计算出该钢样中AlN、MnS析出温度分别为1 240℃、1 200℃,而Al2O3析出温度大于1 800℃,从而为AlN复合夹杂形成机理提供了一个理论依据。 Extracting inclusions from non-oriented silicon steel in non-aqueous electrolysis is a nondestructive method to gain inclusions.Scanning electron microscopy shows that the main inclusions in non-oriented silicon steel were hexagonal AlN,which was of large quantity,irregular silicate,spherical iron sulfide and oxide.The size of AlN inclusions ranged from 1to 5μm,and there were some duplex inclusions of AlN.To further study the formation mechanism of AlN duplex inclusions,Thermo-Calc thermodynamic... 

【作者】 陶永根； ...

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。