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通过试验确定氩气分析流量为3.5L/min,静态流量为0.75L/min,冲洗时间为3s,预燃时间为12s,积分时间为5s的激发条件,采用火花源原子发射光谱法测定取向硅钢中碳、硅、锰、磷、硫。分别采用铣床铣样、砂轮磨样两种制样方式进行了精密度考察,发现制样方式对结果影响不大;讨论了取向硅钢样品中碳、硅、锰、磷、硫测定时可能存在的共存元素干扰,发现硅对锰元素的干扰不可忽略,采用干扰系数法进行了校正,据此拟合得到各元素校准曲线的相关系数均在0.999 0以上。精密度考察结果表明,碳、硅、锰、磷、硫的相对标准偏差(n=10)在0.71%~9.4%之间。对两块取向硅钢生产样品进行分析,并与钢铁研究总院进行比对分析,结果一致,且偏差均在允许范围内。 Carbon,silicon,manganese,phosphorus and sulfur in oriented silicon steel were determined by spark source atomic emission spectrometry.The selected excitation conditions were as follows:the analytical flow rate of argon was 3.5L/min,the static flow rate was 0.75L/min,the flush time was3s,the precombustion time was 12sand the integration time was 5s.Two sample preparation methods,including milling machine and grinding wheel,were investigated.The precision test results showed that,the determination... 
2013-10-28 149 5.8

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... 
2022-03-28 167 5.8

一种无取向电磁钢板用热轧钢板,其以质量%计,含有C:0.0010~0.0050%、Si:1.90%~3.50%、Al:0.10%~3.00%、Mn:0.05~2.00%、P:0.100%以下、S:0.005%以下、N:0.0040%以下、B:0.0060%以下、Sn:0~0.50%、Sb:0~0.50%、Cu:0~0.50%、REM:0~0.0400%、Ca:0~0.0400%及Mg:0~0.0400%,剩余部分为Fe及杂质;该无取向电磁钢板用热轧钢板的特征在于,在无取向电磁钢板用热轧钢板的板宽方向端部中,板厚中心部(t/2位置)的加工组织的硬度HD为Hv220以下。
2021-02-19 118 6.8

本发明涉及一种基于全流程数据的冷轧硅钢厚度控制方法、装置,该方法包括:针对某个冷轧钢卷,首道次默认使用监控AGC,在进入冷轧机工序生产之前,获取其前序全流程的生产工艺和质量数据,并进行预鉴定,若发现硅钢性能波动,则首道次额外再使用秒流量AGC;若发现硅钢厚度波动不剧烈,则首道次额外再使用前馈AGC。本发明无需人工干涉,采用上述规则在生产前就能自动确定最优的AGC生产模式,保证了硅钢产品厚度精度,避免硅钢厚度指标上的缺陷。
2021-10-26 179 6.8

采用ZMLMC超高梯度定向凝固装置,研究了5种凝固速率(10、35、80、150和450μm/s)对定向凝固50W600无取向硅钢的固液界面稳定性转变规律和一次、二次枝晶间距的影响。研究结果表明,在特定的温度梯度下,随着凝固速率的增加,定向凝固的固液界面由胞状晶转变为胞状枝晶,再转变为细小的树枝晶。随着凝固速率的增加,定向凝固组织的枝晶形貌逐渐细化,一次和二次枝晶间距逐渐减小,且与冷却速率之间都符合指数关系:λ1=151.73×(G L·R)-0.31,λ2=22.07×(G L·R)-0.44。当冷却速率达到4.275℃/s时,一次、二次枝晶间距分别为112μm、14.1μm。 Under the conditions of certain temperature gradient and different solidification rate,the directional solidification experiment of non-oriented electrical steel 50W600 was carried out.The microstructure of 50W600 steel was also analyzed in different solidification rate.The result shows that the solid/liquid interface of the steel undergoes an evolution from cellular,cellular dendrite and finally to fine dendrite morphologies.The dendrite refines gradually and the distance between dendrites decr... 
2013-11-28 129 5.8

1.本外观设计产品的名称:硅钢片横剪线。;2.本外观设计产品的用途:对硅钢片料带的冲切、裁断。;3.本外观设计产品的设计要点:在于形状与图案的结合。;4.最能表明设计要点的图片或照片:立体图。;
2021-06-09 167 6.8

本实用新型公开了一种硅钢炉底辊套管生产用沥青浸煮装置,包括机身底座和支撑腿,所述机身底座顶部表面中间位置固定安装有浸煮机构,所述浸煮机构两侧内部中间位置固定安装有电热丝。本实用新型通过,采用了生产框、搅拌桨,在实际使用过程中,代加工工件可以放置到生产框内部,然后进行沥青浸煮作业,通过搅拌桨可以对沥青进行持续不断的搅拌,使得沥青与工件的接触面积增大,提高浸煮效果,当浸煮完成之后,通过液压缸将生产框向上移动,使得生产框两侧卡接在电动伸缩套内部,然后通过振动电机运转带动生产框进行左右震动,使得工件表面残留的沥青得以掉落,提高工件表面的整洁度,便于后续使用,具有浸煮效果好、沥青无残留的优点。
2021-10-13 128 6.8

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... 
2013-03-28 121 5.8

研究了组织和析出物对高效电机用无取向硅钢退火板磁性能的影响。结果表明:随着退火温度升高,退火板平均晶粒尺寸增加,P15/50明显降低,B50略有升高。退火温度在1 000℃时,退火板的综合性能较好。析出物主要是AlN、(MnS+AlN)和(MnS+Al2O3)复合析出物,尺寸较粗大,主要集中在1.0~2.5μm,还发现少量百纳米以下的细小AlN和TiN。实验室模拟TSCR流程试制的高效电机用无取向硅钢,铁损平均值小于4.00 W/kg,磁感应强度大于1.75 T,适合作中小型高效电机铁芯材料。 Effects of microstructure and precipitation on magnetic property of non-oriented silicon steel sheets after annealing for high-efficiency motor are studied in the paper by experiments.The annealed sheet exhibits a larger average grain size,obviously decreasing iron loss and slightly raising magnetic induction with increasing temperature.The annealed sheet has better comprehensive properties at a annealing temperature of 1 000 ℃.The main precipitates are compounds of AlN、(MnS+AlN)and(MnS+Al2O3) w... 
2011-04-28 173 5.8

冷轧取向硅钢工程中有很多的超长、大体积以及薄壁的混凝土结构,裂缝控制是土建施工的关键。在工程中,按照\"抗放兼施、先放后抗、以抗为主\"的原则,采用\"无缝分块跳仓法\",防止超长混凝土结构收缩产生裂缝;在隧道和池体的底板与墙板施工中,采用\"整体浇筑\"法,避免了墙板因约束应力而产生的裂缝。 In the Cold-rolled grain-oriented silicon steel project,there are many overlength,bulk mass,thin-walled concretes structures,how to control the crack is the key of civil engineering construction.In these projects,according to the principle of\"release with resist,resist before release,resist is dominant \",the crack of the over-long structure and shrinkage can be prevented by the method of\"seamless block skip bin \".In the construction of the bottom plate and wall of the tunnel and the pool,the cra... 
2023-05-12 1.34k 5.8

本发明涉及电工钢生产技术领域,具体涉及一种冷轧取向电工钢钢带的渗氮处理工艺,旨在解决现有技术渗氮速度慢,渗氮效果不佳,能耗大,生产周期长的问题,包括以下步骤:S1、经过冶炼、连铸后,对铸坯进行热连轧、常化酸洗、冷轧及脱碳退火的工序;S2、在渗氮炉内进行两段渗氮处理:S21、第一段渗氮处理的渗氮温度为750‑950℃,渗氮时间为25‑35s,另外,渗氮介质的喷射压力为0.15‑0.25MPa,渗氮介质的流量为5‑20NL/min;S22、经稀土溶液浸泡1‑2小时后,继续第二段渗氮处理,其渗氮温度为460‑560℃,渗氮时间为10‑25s,另外,渗氮介质的喷射压力为0.15‑0.25MPa,渗氮介质的流量为1‑10NL/min;S3、涂隔离剂、高温净化退火后得到成品。
2021-06-04 147 6.8

无氧化炉具有加热效率高、投资与运营成本低、作业率高、表面质量及板型良好、NOx排放相对低等优势,在硅钢热处理领域应用前景广泛。本文阐述了确定无氧化炉(NOF)加热能力详细过程,涵盖炉温、炉断面尺寸、炉长、热平衡结算、加热能力计算等,为今后无氧化炉(NOF)在硅钢热处理应用时的设计提供了借鉴,同时也为今后明火直接加热的工业炉设计提供了参考。 Non-oxidation furnace has the advantage s of high heating efficiency, low investment and operation cost, high operation rate, good surface quality and plate shape, and relatively low NOxemission,and it still has wide application prospect in the field of silicon steel heat treatment. The detailed process of determining the heating capacity of a non-oxidizing furnace(NOF) is described, covering furnace temperature, furnace section size, furnace length, heat balance settlement, heating capacity cal... 
2022-01-28 172 5.8

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