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本发明涉及电磁钢板技术领域,尤其涉及一种免涂层高碳高强耐蚀电磁钢板及其生产方法。所述电磁钢板按重量百分比计,包括如下组分:C为0.010%~0.150%,Si为1.30%~2.50%,Mn为0.50%~1.50%,P为0.04%~0.15%,S≤0.015%,Cr为0.10%~1.50%,Cu为0.2%~0.6%,Al为0.10%~1.50%,Sn为0.02%~0.10%,Ni≤0.0050%,Nb≤0.0050%,Ti≤0.0050%,N≤0.0050%,V≤0.0050%,其余为Fe和不可控残余元素。所述钢板生产方法包括如下步骤:1)板坯浇铸;2)板坯连轧及卷曲;3)热轧卷酸洗及冷轧;4)罩式退火;5)钢卷矫直或拉矫。本发明所生产专用产品在电磁性能相近情况下,强度进一步提升、耐蚀性能提高、生产流程缩短、生产难度下降,减少了涂层工序,降低了生产成本,同时不同盐雾试验锈蚀减少85%以上。
2021-01-06 77 6.8

通过对辉光放电发射光谱法分析电工钢样品光谱行为的研究,分析其工作参数如:电压、电流、预溅射时间和积分时间对光谱强度和稳定性的影响,并以铁为内标元素,优化了工作参数。确定了直流辉光放电光谱法测定电工钢中碳、硅、锰、磷、硫、铬、镍、铜共8种元素的定量分析方法,并对该方法分析的精密度和准确度进行验证,结果表明,各元素的测定结果与认定值和其他方法测定值一致,测量元素结果RSD值小于2%。 Based on research on analyzing the spectrum behavior of the sample taken from the electrical steel by glow discharge optical emission spectrometry,the effect of its operational parameters such as current,voltage,pre-sputtering time and integrating time on the spectral intensity and spectral stability is analyzed.Taking the Fe as an element applied by internal standard method,these operational parameters are optimized,and therefore the quantitative analysis method for testing eight kinds of eleme... 
2011-01-28 109 5.8

本发明涉及一种含磷无铝高效无取向硅钢生产方法,生产方法取消常化工艺,具体步骤如下:1)将钢水冶炼至目标成分后,浇铸成坯;2)板坯热装,热装温度≥500℃,热轧板坯加热炉均热段板坯温度1150~1200℃;终轧温度控制在860~930℃,卷取温度700~800℃3)酸洗后冷轧,控制冷轧整体压下率80%以内,至成品厚度;4)连续退火炉快速加热段温度设定1050~1180℃,增加有利织构组织形核,均热段温度设定830~950℃,全氮气干气氛保护,退火工艺速度120~150m/min,满足晶粒度8~4级。本发明不需进行热轧卷常化处理,降低了制造成本。
2021-08-19 104 6.8

本发明提供一种改善表面麻点缺陷的薄规格中低牌号无取向硅钢及其生产方法,成分C≤0.0025%,1.2≤Si≤1.65%,0.25%≤Mn≤0.35%,0.06%≤P≤0.11%,0.1%≤Als≤0.2%,S≤0.0025%、N≤0.0025%,Ti≤0.0025%,其余为Fe及不可避免的杂质。与现有技术相比,本发明采用较低氢气浓度,防止炉内氧化铁皮还原,减轻碳套辊的腐蚀程度,减少碳套辊结瘤率,改善带钢表面质量;采用合理合金成分设计,提高带钢的力学强度,降低碳套辊结瘤对带钢表面的影响程度,改善带钢表面质量。产品厚度为0.35mm,板面麻点发生率降低,无手感,且辊身周长周期范围内麻点个数≤5个。
2021-10-14 107 6.8

对冷轧无取向硅钢在冶炼过程中各个工序的顶渣进行了检测,分析了顶渣变化原因,并得出结论:硅钢生产宜采用复吹转炉,以降低吹炼终点渣中TFe含量,进而减轻对精炼的压力;使用低S、低Al2O3含量中间包覆盖剂;RH脱氧及合金化顺序采用先加硅铁后加铝;首罐宜经LF提温并降低渣中TFe。 The top-surface slag used for the various production processes in smelting coldrolled non-oriented electrical steel is tested and based on tested results the cause of the top surface slag change is analyzed.So it is concluded that the combined blown converter is more suitable to be used for smelting electrical steel in order to reduce the content of TFe in slag at blow end point and then much better results can be achieved during the period of refining.Secondly the tundish flux contenting low co... 
2013-03-28 101 5.8

利用场发射电镜及能谱仪研究了取向电工钢薄、厚板坯铸锭中不同区域的析出相差异,确定了MnS、AlN及Fe3C的析出顺序和形貌特征。结果表明AlN以先析出的MnS为形核核心,形成粗大微米级的复合析出相。针状Fe3C既可以在复合析出相表面形成也可以在基体中单独出现,主要受冷却速度的影响。在1250℃保温1~2 h,AlN、Fe3C均可完全回溶,但部分MnS仍不回溶。MnS尺寸随着保温时间延长而增大。导致热轧板中沿轧向分布的粗大MnS,减弱了粒子钉扎力。 Precipitates in thin and thick slabs of electrical silicon steel were investigated by means of field emission SEM and EDS analysis.The precipitation sequence and the morphology of MnS,AlN and Fe3C particles were identified.AlN particles are observed to be nucleated on surface of MnS forming micron-meter-sized complex particles.Acicular Fe3C can precipitate on surface of the complex MnS/AlN particles or directly from matrix depending on cooling rate of the slabs.After holding at 1250 ℃ for 1-2 h,... 
2011-08-28 88 5.8

对高牌号无取向电工钢国内生产情况、工艺技术、产品性能及应用领域等进行了阐述,并探讨了高牌号无取向电工钢产品的发展趋势。 This paper introduces basic facts on the production status,process technology and products’ properties and their applications of non-oriented electrical steel with high grade at home,and then discusses the development trend on technology for producing the non-oriented electrical steel with high grade. 
2011-02-28 101 5.8

对高牌号无取向电工钢35W300的成品进行了第二次退火,对第二次退火后的成品性能、纵横向磁性能差异和组织变化进行了分析。结果表明,随着第二次退火温度的升高,晶粒长大,磁性能优化。铁损平均值下降0.087 5W/kg,磁感平均值升高0.008T。第二次退火温度为820℃的产品的磁性能能够满足用户使用要求。 The product of high grade non-oriented electrical steel 35W300 was annealed at the second time.Microstructure,the difference of magnetic properties in the vertical and horizontal and were studied.The results show that the grain grew up and magnetic properties optimized with the increase of annealing temperature for the second time.Iron loss average declines in 0.0875 W/kg,magnetic induction average increases 0.008 T.The magnetic properties can meet the requirements of users at the second anneali... 
2013-04-28 105 5.8

【作者】 朱凤泉; 黄生银; ...
2013-01-28 103 5.8

对欧盟市场汽车压缩机专用产品进行技术解析,对比分析了其电磁性能、退火和发蓝处理、物理性能、化学成分、应用特点等参数。探讨国内外电工钢产品应用方式的不同特点,并结合鞍钢自身工艺装备和炼钢、热轧、冷轧工艺参数介绍了其生产可行性。提供了冶金工艺流程下,后工序电工钢专业生产线及传统冷轧系统生产线两种生产方式,均能满足用户最终使用要求。 The technology of automotive compressor accommodation manufacture of European Economic and Monetary Union market was described.The magnetic properties,annealing bluing,physical properties,chemical composition,application parameters were analysed.The different characteristics of the application of electrical steel products,the feasibility of manufacture on the existing technology and equipment,steelmaking,hot rolled,cold rolled technical parameters were discussed.The professional product line of ... 
2013-06-28 99 5.8

本发明公开了一种超高效变频空调压缩机用无取向硅钢薄带及其制造方法,属于无取向硅钢技术领域。本发明包括以下重量百分比的组分:C≤0.003%,Si:2.0%~2.5%,Mn:0.15%~0.5%,Als:0.3%~0.7%,Sn:0.05%~0.11%,S≤0.003%,P≤0.03%,B:0.002%~0.004%,Ca:0.003%~0.005%,N≤0.003%,Ti≤0.003%,其余为Fe及不可避免的杂质,且Mn/S比控制在20~60范围内,B/N比控制在0.7~1.5,Ca/S的比例≥1。为解决现有技术中存在的问题,本发明通过添加合金元素以及偏析元素,配合连铸、热轧、常化和连续退火等热处理工艺,以及优良的冷轧板形控制技术,实现0.30~0.35mm厚度薄规格的高效无取向硅钢产品,具备优异的磁性能和高屈强比的力学性能,满足高效变频空调压缩机电机磁性能和关节式定子高速冲裁对力学性能和板形的高标准要求。
2021-11-30 108 6.8

一种冷轧硅钢生产线的带钢卷曲控制装置,由卷取机、导向辊、液压站、伺服阀及其油缸、计算机控制系统、卷取机位移传感器和带钢边部位置探测器组成的卷曲机系统,该系统在带钢辊道的两侧各装有一个带钢边部位置探测器,以分别检测带钢的两个边缘在辊道上的位置,其检测信号分别传送到计算机控制系统中去。计算机控制系统可对两个带钢边部位置探测器输入的信号进行带钢的中心位置计算,并与卷取机位移传感器输入的卷取机中心位移信号进行比较,根据比较结果控制油缸的推杆推动卷取机移动,以使卷取机的卷曲中心与带钢的中心线保持一致。本发明的有益效果是:实现了使卷取机的卷曲中心与带钢的中心线保持一致,因而不再切边,提高了带钢的成材率。
2021-02-10 93 6.8

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