钢厂
常化温度对TSCR流程制备低碳低硅无取向硅钢组织和性能的影响
在实验室试制了TSCR流程的低碳低硅无取向硅钢,研究了在850~1050℃不同温度常化对冷轧量0.5mm厚钢板再经950℃×7min退火后的组织、织构和磁性能的影响。结果表明:随常化温度的升高,使热轧板晶粒尺寸增大,晶界更清晰,组织均匀性更好;由于第二相AlN和MnS析出物尺寸比较大,使冷轧退火后钢板晶粒也随常化温度升高呈单调增大趋势;γ有利织构和{111}、{112}不利织构与常化温度升高同时增强,但前者增强更多;冷轧板退火后铁损随常化温度升高呈单调下降,磁感呈单调上升趋势。 The low-carbon and low-silicon non-oriented silicon steel was prepared by thin slab casting and rolling(TSCR) in lab.The effect of normalizing at different temperatures in 850-1 050℃on microstructure, texture and magnetic properties of 0.5 mm cold-rolled sheets after annealing at 950℃for 7 min was researched. The results show that with increasing the normalizing temperature,the grain size of hot-rolled sheets increased,the grain boundaries were more clear and the rnicrostructure uniformity was b...
退火温度对无取向电工钢组织和磁性能的影响
主要研究了0.7%Si无取向电工钢退火试样的组织、晶粒尺寸和织构对其磁性能的影响。结果表明,随着退火温度的升高,晶粒尺寸逐渐增大,组织的均匀性得到改善;ɑ取向线上的纤维织构多集中于{114}<110>和{223}<110>附近,再结晶结束后,织构含量变化不大。{111}<110>织构取向密度值随温度升高而下降,{112}<111>织构与{111}<110>织构变化相反。晶粒尺寸增大对磁感强度的影响较小,而对铁损的影响较大。 Influences of microstructure,grain size and texture on the magnetic properties of 0.7% Si non-oriented electrical steels annealed samples were studied.The results show that with annealing temperature increasing the average grain size is increased gradually.Uniformity of the microstructure is improved;the textures of ɑ-fiber gathered in the vicinity of the { 114} < 110 > and { 223 } < 110 > texture.After recrystallization,the volume fraction of texture changes small.{ 111} < 110 &g...
国外采用板坯低温加热工艺生产Hi-B取向电工钢最新进展
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...
无取向电工钢环保绝缘处理液试验研究
针对目前大部分无取向电工钢处理液为含铬处理液、且需在较高温度下固化的情况,在分析成膜物质性质的基础上,试验研究了一种可低温快速固化的电工钢环保绝缘处理液,研究了其涂装工艺,并测定了涂层的附着性、绝缘性、耐热性、耐蚀性等性能。试验结果表明:该处理液可在150~250℃下快速烘干固化,涂层表面光滑且致密均匀,性能优良,可满足中小电机的使用要求。 At present,most of the insulating fluid for non-oriented electrical steel contains chromium,and should be cured at high temperature.On the basis of analyzing the characteristics of the film-forming substance,a kind of eco-friendly insulating fluid with lower curing temperature for non-oriented electrical steel sheet was developed in the experiments.Then its coating process was studied,and the adhesiveness,insulativity,heat resistance,corrosion resistance and other properties of the coating was m...
CN202110324168.8一种自主学习的高硅钢软磁复合铁芯智能化生产系统及生产方法
本发明公开了一种自主学习的高硅钢软磁复合铁芯智能化生产系统及生产方法,属于软磁复合铁芯智能化生产技术领域。本发明的生产系统包括数据输入模块、数据分析模块、数据输出模块、通信模块、数据修正模块;生产方法为:用户通过输入模块选择目标性能参数及生产控制模式,系统生成生产过程关键参数,并由输出模块输出给用户;用户确认后形成控制指令,并发送至生产设备进行生产。本发明的系统不仅能够根据高硅钢铁芯产品的目标性能参数自动生成合理的操作条件,还能根据历史数据和产品检化结果对系统内置的关系模型不断进行优化、完善,能够有效提高产品产量和质量、减少浪费、降低成本。
CN202111127223.0高磁感取向硅钢高效脱碳退火工艺
本发明公开了一种高磁感取向硅钢高效脱碳退火工艺,主要工艺流程为:炼钢连铸→热轧→酸洗常化→冷轧→脱碳和初次再结晶退火→渗氮处理(低温Hi‑B)→涂覆氧化镁隔离剂→高温退火→拉伸平整退火→涂覆绝缘涂层→精整,低温HiB不同于高温Hi‑B的工艺流程主要是在脱碳退火后增加了渗氮段。本发明在保证产品实物质量不低于现有水平(国内领先水平)的前提下,使Hi‑B钢退火效率达到世界领先,制造成本大幅降低。
50A1300牌号无取向硅钢磁性能改善工业实践
结合工业化生产的50A1300牌号无取向硅钢,分析了化学成分、RH精炼脱氧方式、板坯装炉温度以及热轧平整工艺等对磁性能的影响,探讨成品钢磁性能的改善。结果表明,采取改善后,50A1300牌号无取向硅钢的磁性能得到明显改善。2012年,该钢种平均铁损、磁感应强度分别达到5.26 W/kg、1.762 T,能够较好地满足用户市场需求及同行对标需要。 Based on the industrial manufacture of 50A1300 grade non-oriented silicon steel sheets,effects of chemical composition,deoxidization method in RH vacuum refining,charging temperature of steel slabs,hot rolling and flattening progress on magnetic properties are analyzed.The optimization methods of magnetic properties of steels are discussed. Results show that the magnetic properties are obviously improved by the adopted measures above. In 2012,the average core loss and the magnetic induction of 5...
CN202120558972.8一种硅钢片横剪线裁切设备
本实用新型公开了一种硅钢片横剪线裁切设备,包括:本体,所述本体包括工作台、挡屑罩和裁切装置,所述挡屑罩内水平固定安装有横杆,所述裁切装置与横杆下表面滑动连接;两个定位机构,所述定位机构包括第一螺纹杆、第一滑块和压板,所述挡屑罩内壁开设有两个安装槽,两根所述第一螺纹杆分别转动安装在两个安装槽内,两个所述第一滑块分别螺纹套设在两根第一螺纹杆上,两个所述压板分别与两个第一滑块远离安装槽槽底的一端水平固定链接;两个驱动机构,所述驱动机构用于控制第一螺纹杆发生转动。通过驱动装置控制定位机构中压板在垂直方向上的位置便可快速实现对硅钢片的定位工作和解除工作,方便快捷,提高了裁切工作的效率。
无取向电工钢中夹杂物的分析
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.
热轧无取向低硅钢SGG的研制开发及生产
针对川威950的工艺现状,结合无取向低硅钢SGG生产的工艺特点,主要从控制其钢坯加热和轧制以及终轧温度和卷曲温度几方面入手,进行无取向低硅钢生产的工艺控制研究。同时根据近6000吨的生产实践表明,该工艺措施能很好的满足该钢种的需要。 950 process Chuanwei status quo,with non-oriented silicon steel production process features low,mainly from the control of billet heating and rolling and finish rolling temperature and coiling temperature of several aspects,for non-oriented silicon steel production process of low control at the same time According to nearly 6,000 tons of production practice shows that the process measures could well meet the needs of the steel.
CN202023026974.7一种无取向硅钢涂层喷涂装置
本实用新型提供了一种无取向硅钢涂层喷涂装置,属于冶金行业涂层技术领域,包括上涂辊和下涂辊,所述上涂辊一侧设有上喷淋管,下涂辊一侧设有下喷淋管,在上涂辊和下涂辊间的水平面上方设置一个倾斜挡板,所述上喷淋管对准倾斜挡板,下喷淋管对准下涂辊,所述下涂辊下方设置一个涂液收集槽,下涂辊部分置于涂液收集槽中,涂液收集槽底板设有涂液回流口,所述涂液收集槽通过一个升降装置调节自身高度。该装置稳定性好,可靠性高,能够有效保证无取向硅钢下表面涂层质量,避免出现漏涂或者涂层条纹缺陷,提高无取向硅钢涂层质量。
EB5325涂层液在冷轧无取向电工钢中的应用
介绍了EB5325涂层液的主要性能和中冶新材生产冷轧无取向电工钢所用的涂层设备,通过多次试验摸索出使用EB5325涂层液的工艺,对涂层出现的缺陷进行分析研究,并提出解决方法,使中冶新材生产的冷轧无取向电工钢的涂层质量满足了用户的要求。 This article introduces the main properties of EB5325 and the coating equipments for cold-rolled non-oriented electrical steel. A process using EB5325 coating liquid is made through many time experiments and exploration. The appeared defects in the coating are studied and analyzed,and the solutions are proposed. The coating quality meets clients’ requirements of cold rolled non-oriented electrical steel.

