硅钢资料

对CSP流程生产的无取向电工钢M50W800不同尺寸样品的磁性能进行了测试和分析,结果表明:采用不同单片检测的磁性能结果与标准的Epstein方圈样品检测对比,存在明显的偏差;且同一尺寸的单片纵横向样品之间相比较,对应的磁性能差异性也较大。几种不同尺寸的单片样品,以320mm×30mm尺寸的纵横向平均值最接近标准Epstein方圈样的性能值,其铁损偏差最小。 The magnetic properties of M50W800 non-oriented electrical steel produced by CSP process were tested and analyzed with samples of different sizes,showing that significant deviation existed compared to that of Epstein square circle sample.In particular,obvious difference in magnetic properties also existed between longitudinal and transverse samples of the same size.For test samples of different sizes,the average magnetic properties of 320mm×30mm samples are the closest to that of Epstein square ... 

取向硅钢热轧板中织构梯度对发展完善的二次再结晶十分关键,通过添加铜可以显著降低取向硅钢板坯加热温度,从而影响热轧板织构分布。利用X射线衍射仪,分析了实验室模拟薄板坯连铸连轧(TSCR)工艺的3种不同铜含量的取向硅钢热轧板织构。结果表明:不同铜含量热轧板表面到厚度1/4处均为弱的热轧织构,热轧板心部主要为{100}面织构;铜含量约在0.4%时,热轧板次表层的{110}<001>织构比例最高,而热轧板心部的{100}<110>织构比例最低;铜含量对热轧织构中{114}<110>和{001}<100>织构发展有显著影响。 The texture gradient in hot rolled grain oriented silicon steel strip is one of the essential factors to achieve a perfect secondary recrystallization.The addition of copper can significantly reduce the slab reheating temperature of grain oriented silicon steel,so as to impact the texture distribution in the hot rolled strip.The texture of hot rolled grain oriented silicon steel strip as-rolled by thin slab casting and rolling process(TSCR) in laboratory with three different copper contents was ... 

本发明公开了一种轻便电动自行车轮毂电机用无取向电工钢及制造方法，属于无取向钢领域。针对现有小型电机无取向钢加工难度大，效率低的问题，本发明提供一种轻便电动自行车轮毂电机用无取向电工钢，包括如下重量百分比的各组分：Si：1.50％～3.00％；Als：0.50％～2.00％；Mn：0.20％～1.00％；P：0.01％～0.20％；C：≤0.005％S：≤0.03％；N：≤0.03％；Ti：≤0.005％,其余为铁和不可避免的杂质；其中C、S、N和Ti的重量百分比满足下式：C％+S％+N％+Ti％≤0.01％。本发明通过合理控制元素含量提高硅钢的延塑性，便于加工。本发明提供的制造方法降低卷绕铁芯中的涡流和磁滞损耗，同时能够避免钢卷表面氧化和表面氮化物析出，降低铁芯损耗，与现有同铁损级别无取向硅钢相比延伸率较高，后续冷加工性能更加优异。在保证优良性能的同时便于加工。

一种高强型高频电磁性能优异的硅钢薄带板，钢中化学成分按重量百分比计为：C≤0.0027％、Si3.10％～3.35％、Als0.80％～1.2％、Mn0.20％～0.85％、P≤0.050％、S≤0.0020％、N≤0.0020％、Ti≤0.0020％、V≤0.0020％、Nb0.0050％～0.080％，其余为Fe和不可避免的杂质。本发明的无取向硅钢薄带产品用于新能源汽车驱动电机的制造，其强度高，中高频电磁特性优异。

采用中、厚板坯生产技术对取向硅钢进行了研制和开发,对热轧及后工序样品进行了金相组织观察和EBSD分析,探讨了两种组织及织构的差异性,研究结果表明:除高温退火样品外,中板坯生产的取向硅钢各工序样品平均晶粒尺寸大;厚板坯生产的取向硅钢热轧和常化样品亚表层Goss织构强;中板坯和厚板坯的脱碳退火板织构没有明显区别。中板坯生产的取向硅钢成本低,产品磁性能和质量与厚板坯相当。 Grain oriented silicon steel was researched and developed by medium thickness slab and thick slab.Microstructures observation and EBSD analysis to the samples of hot rolling and following processes were carried out,respectively.The differences between the two kinds of microstructures and textures were discussed.The results show that the average grain sizes of every process samples are larger except that of high temperature annealing samples of grain oriented silicon steel produced by medium thic... 

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。

本发明涉及一种含磷高磁感无取向硅钢的生产方法，工艺路线：铁水脱硫－转炉冶炼－RH精炼－连铸－热轧－酸洗－冷轧－连续炉退火－涂层－性能检验－包装，具体步骤包括：1)将钢水冶炼至目标成分后采用连铸方式将钢水铸成坯；2)热轧板坯加热炉均热段板坯温度950～1050℃，终轧温度控制在780～830℃，卷取温度600～680℃；3)酸洗后冷轧，控制冷轧整体压下率80％以上，至成品厚度，增加剪切带组织；4)连续退火炉快速加热段温度设定1000～1150℃，增加有利织构组织形核；均热段温度设定750～830℃，全氮气干气氛保护，退火工艺速度110～150m/min，满足晶粒度8～4级。本发明在减少硅、铝、锰合金添加量的情况下，改善铁损提高磁感性能，提高机械性能。

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... 

结合冶炼无取向硅钢的生产实际,对钢中硫的来源,以及炉渣性质、钢水温度、底吹强度对脱硫的影响进行了分析。研究表明,转炉钢中硫的主要来源为铁水、废钢、铁水渣及石灰带入;冶炼硅钢时,终渣碱度为3.0~3.5,w((FeO))≤20%,终点钢水温度大于等于1 680℃,加大底吹搅拌强度能提高转炉脱硫效果。硅钢平均出钢硫的质量分数为0.004 8%,能满足无取向硅钢对硫含量的要求。 With the actual production of non-oriented silicon steel,the source of sulphur and the effect of metallugic parameters like slag properties,temperature of molten steel and bottom stirring on desulphurizing ability were investigated.The results show that the main source of sulphur is molten metal,scrap,the remaining slag volume in hot metal and lime.The degree of desulphurization for smelting silicon steel can be increased through adopting the following measures,such as the basicity of finishing ... 

研究了采用高温卷取热轧态原料和常化态原料生产高牌号冷轧无取向电工钢组织、织构和磁性能。研究发现钢卷采用750℃高温卷取,下线后立即采用\"保温罩\"对钢卷进行保温,时间96h,然后空冷至100℃时上线生产的工艺可取代常化工艺生产高牌号冷轧无取向电工钢。冷轧上线前,热轧态原料的表层为大量的再结晶组织,这部分组织包括了热轧轧制时保留下来的动态再结晶组织,钢卷本身高温回复后产生再结晶晶粒,以及在保温罩内保温时形成的再结晶组织。高温卷取的热轧态和常化态的热轧卷作为原料时,试样织构类型相似,取向分布密度接近,再结晶后织构类型仍然相似,取向分布密度仍然接近。Goss织构对磁性能增加有促进作用。实验钢中较好的磁性能对应的织构[{100}+Goss]/{111}的比值较高,体现了织构的遗传性。 Microstructure,texture and magnetic properties of high grade cold rolled nonoriented electrical steel which made of hot rolled material with high temperature coiling and with normalization were studied.Steels coiled in high temperature(at 750 ℃),stacked with insulation cover for 96hand air cooled to 100 ℃ were using to manufacture high grade nonoriented electrical steel.The process can replace the normalization process.There are a lot of recrystallized grains in the surface layer of the coil wit... 

研究了退火温度对3.1%Si无取向硅钢组织和磁性能的影响规律。结果表明:退火温度从940℃提高至1 000℃,平均晶粒尺寸由98μm增加到145μm,铁损P_1.5/50从2.576 W/kg降低至2.408W/kg。随着退火温度的升高,γ不利织构组分强度逐渐降低,{111}〈112〉织构组分强度降低约16%,磁感B₅₀逐渐升高,磁性能水平提高。 The effects of annealing temperature on microstructure and texture and magnetic properties of 3.1%Si non-oriented silicon steel were investigated in this paper.The results showed that,when the annealing temperature increased from 940℃ to 1 000℃,the average grain size of metallographic structure increased from 98μm to 145μm,the iron loss value P_1.5/50 decreased from2.576 W/kg to 2.408 W/kg.And as the annealing temperature increased,the strength of the unfavorable texture componentγgrad... 

本发明公开了一种宽频率低铁损变频电机用无取向电工钢及制造方法，属于无取向电工钢领域。针对现有无取向钢在较宽频率范围内电磁性较差的问题，本发明提供一种宽频率低铁损变频电机用无取向电工钢，包括如下重量百分比的各组分：Si：2.80％～3.50％；Als：0.20％～0.60％；Mn：0.20％～0.60％；P：0.01％～0.20％；C：≤0.005％；S：≤0.02％；N：≤0.02％；Ti：≤0.005％；其余为铁和不可避免的杂质；其中C、S、N和Ti的重量百分比满足下式：C％+S％+N％+Ti％≤0.009％。通过控制合金元素的含量达到电工钢电阻率增加、磁滞伸缩减小，涡流和磁滞损耗均降低的目的。通过本发明提供的制造方法在正火过程中选用低温工艺，改善随着合金元素量的增加金属强度增加、塑性降低、冷加工性能降低的问题，使其最终在较宽频率范围内电磁性能优异。