硅钢资料

根据新日铁、JFE及浦项等国外钢铁公司2008年以来在日本专利局、欧洲专利局(EP)及世界知识产权组织(WIPO)申请公开的有关生产Hi-B取向电工钢典型专利技术,概述了近年来国外大型钢铁企业采用低温板坯加热(坯加热温度<1 280℃)技术生产Hi-B取向电工钢主要技术重点,即将调节关键化学成分Al、N、Sn及Sb等与工艺改进相结合。最后介绍了国外大型钢铁企业采用低温板坯加热技术生产Hi-B取向电工钢实例。 The latest developments on technology for manufacturing Hi-B grain oriented electrical steel sheets developed by Nippon Steel Corp.,JFE Steel and POSCO were described according to the patents published by World Intellectual Property Organization,Japan Patent Office and European Patent Office over the recent years.The low temperature slab heating process(particularly slab-heating temperature<1 280 ℃) together with suitably adjusting key chemical elements such as Al,N,Sn and Sb elements was the... 

对无取向电工钢中的夹杂进行了系统的分析。利用小样电解,采取不同电解液,不同的分离方法对无取向电工钢中稳定和不稳定夹杂物进行了提取、分离和收集。利用扫描电镜(SEM)、X-射线衍射、ICP等对电解分离收集的夹杂物进行了定性和定量分析。 The inclusion analysis of the non-oriented electrical steel has been investigated.By using small sample electrolytic analysis,with different electrolytes and different separation ways,the stable inclusions and unstable inclusions was drew,separated,and collected.With utilizing the methods of SEM,X-ray and ICP,the qualitative and quantitative analysis of inclusions in the non-oriented electrical steel was obtained. 

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X-射线衍射织构分析和线形分析技术测定了交叉轧制双取向硅钢在制备工艺各阶段的织构及微结构,进而探讨了立方织构({100}<001>)的形成过程。通过对实验结果的分析可知,二次冷轧和交叉轧制工艺为立方织构提供了内能优势和有利的形变织构,而低温预退火工艺既强化了立方织构的内能优势,又为立方织构的异常长大提供了有利的组织保证,最终在抑制剂(AlN和MnS)的协同作用下,硅钢在二次再结晶退火后形成了强烈的立方织构。 The texture and substructure of the double oriented electrical steels produced by the cross rolling technology during the difference process has been measured by means of the X-ray texture and diffraction peak profile analysis technology,and research the formation mechanism of cube texture,{100}<001>.The results show that the dominances of inner energy and deformation texture were supplied by secondary cold rolling and the cross rolling technology and strengthened by pre-annealing at a low... 

根据本发明的一个实施例的取向电工钢板的制造方法，其包含：对板坯进行热轧，以制造热轧钢板的步骤；对热轧钢板进行热轧板退火的步骤；对热轧板退火后的热轧钢板进行一次冷轧的步骤；对一次冷轧后的钢板进行一次脱碳退火的步骤；对完成脱碳退火的钢板进行二次冷轧的步骤；对完成二次冷轧的钢板进行二次脱碳退火的步骤；以及对二次脱碳退火后的钢板进行连续退火的步骤。

【摘要】 <正>近日,从重钢集团获悉,日前重钢炼钢厂...

介绍了国内无底层取向电工钢生产技术水平、产量和用途，简述了无底层取向电工钢作为取向电工钢超/极薄带母料及应用于制作大型发电机组铁心、风电等电机铁心和变压器铁心等的情况。 The production technology level,output and application of domestic glassless grainoriented electrical steel were introduced,and the application of glassless grain-oriented electrical steel as parent material of ultra-thin strip of grain-oriented electrical steel and in making large-scale electric generator cores,wind power motor cores and transformer cores were briefly described. 

本实用新型公开了一种硅钢炉用保护气的循环系统，包括与硅钢炉群排气管相连通的氢气提纯净化单元、与氢气提纯净化单元相连的氮氢配比单元以及与氮氢配比单元相连的用于对氮氢混合气中加入水蒸气的加湿单元；所述加湿单元与硅钢炉群的进气管相连通。本实用新型便于对尾气中的氢气回收再利用，可节省资源。本实用新型适用于硅钢退火炉等设备中，用于实现氢气的循环再利用。

本申请提供了一种取向硅钢铸坯的制备方法及铸坯系统，该制备方法用于对精炼后的钢水进行连铸处理，所述连铸处理包括以下步骤：进行凝固处理，以使所述精炼后的部分钢水凝固形成坯壳；凝固处理时，进行电磁搅拌，以使所述精炼后的剩余钢水最终形成铸坯，其中，所述电磁搅拌的位置和结晶器出口的间距为0.3～1.5m，所述电磁搅拌的电流范围为0A～900A。上述制备方法通过调节电磁搅拌的位置和电流大小来调节电磁搅拌的强度，进而通过电磁搅拌的强度来调节等轴晶的生成量，扩大等轴晶率的范围。

本发明提供一种硅锰镇静无取向硅钢冶炼方法。该无取向硅钢化学成分质量百分比为C≤0.005％，Si：0.25％‑1.20％，Mn：0.2％‑0.8％，P：0.015％‑0.065％，S≤0.005％，Als≤0.005％，余量为Fe及不可避免的杂质。其生产方法包括转炉出钢结束加石灰、渣面脱氧剂调渣；RH真空精炼脱碳结束后进行脱氧合金化，合金化后3‑5min由真空室料仓加入合成渣，处理一段时间后净循环8‑12min，破空出钢运至连铸浇注。得到钢水中主要为SiO2‑CaO‑Al2O3系夹杂，一方面避免了钢水中生成低熔点SiO2‑MnO系夹杂，轧制过程沿轧制向伸长，阻碍晶粒长大；另一方面也避免了生成纯SiO2或高SiO2组分类酸性夹杂，导致冶炼过程耐火材料的严重侵蚀。本发明可控制钢中非金属夹杂物类型，提高钢水洁净度，改善冶炼过程中对耐火材料的侵蚀。

本发明提供了基于硅钢片性能的分类方法、系统、计算机和存储介质，通过抽样选取待分析硅钢片，获取待分析硅钢片的基准B‑H曲线和基准B‑P曲线，以及通过预设检测方法测得待分析硅钢片的样本B‑H曲线和样本B‑P曲线后，根据预设磁通密度监测范围分别选取基准B‑H曲线、基准B‑P曲线、样本B‑H曲线和样本B‑P曲线对应的B‑H基准样本点、B‑P基准样本点、B‑H待分析样本点和B‑P待分析样本点，并基于依此分别得到B‑H样本点距离与B‑P样本点距离分析待分析硅钢片的性能，以及根据分析结果对待分析硅钢片进行分类的方法，基于性能曲线的数据分析对硅钢片性能进行合理的评估分类，不仅实现了对硅钢片质量的有效监控，而且为其使用策略的制定提供可靠依据，保证产品质量的同时，为产品用料选择提供便利。

试验研究了0.3 mm取向硅钢冷轧板(/%:0.046C,3.07Si,0.09Mn,0.029P,0.004S,0.005A1)的退火温度(760~880℃7 min)和退火时间(820℃3~9 min)对该钢的晶粒尺寸,再结晶和织构的影响。结果表明,最佳初次再结晶退火工艺为820℃5 min,该钢的平均晶粒尺寸为14.20μm,完全再结晶率为92%,不利{111}<110>结构含量为3.16%,有利织构{111}<112>,{012}<001>和高斯织构含量分别0.40%,4.73%和2.46%。 The effect of annealing temperature(at 760 ~ 880 X.for 7 min) and time(at 820℃ for 3~9 min) on grain size,recrystallization rate and texture of 0.3 mm cold-rolled sheet of oriented silicon steel(/%:0.046C,3.07Si,0.09Mn,0.029P,0.004S,0.005Al) has been tested and studied.Results show that with optimum recrystallized annealing at 820℃ for 5 min,the silicon steel average grain size is 14.20 fun,the complete recrystaUization rate is 92%,the unfavourable-texture {111}< 110 > content in steel is ...