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介绍了CSP工艺生产无取向电工钢各工序的设备特点、采用的工艺控制手段和电工钢产品质量情况,结合生产实践证明了马钢CSP工艺开发的无取向电工钢产品丰富了薄板坯连铸连轧的品种结构,发挥了薄板坯连铸连轧生产无取向电工钢性能均一、稳定的特点。 The equipment characteristic,the process control method and the quality of non-orientated silicon steel by CSP process were introduced.Combined with the production situation,it is proved that production of non-orientated silicon steel developed on Masteel CSP line would enrich product structure of thin slab continuous casting and rolling,and it exerts stable performance of non-orientated silicon steel. 
2013-06-28 84 5.8

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。
2021-03-26 84 6.8

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 ... 
2013-01-28 83 5.8

研究了常化对CSP流程生产的wSi=1.6%的无取向电工钢组织、织构和成品磁性能的影响。结果表明,经CSP流程生产,且在相同的冷轧及退火制度下,经1 000℃×2min常化处理的wSi=1.6%的无取向电工钢热轧板,其最终退火成品的铁损P15/50比不常化试样下降了10.5%,磁感B50比不常化试样提高了2.5%;常化使wSi=1.6%的无取向电工钢成品的平均晶粒尺寸增大,成品铁损P15/50相应减小;同时,常化使wSi=1.6%的无取向电工钢成品中高斯织构的强度增加,γ纤维织构的强度减弱,这有利于成品磁感B50的提高。 The effect of normalizing on microstructure,texture and magnetic properties of non-oriented electrical steel with wSi=1.6% produced by CSP process was investigated.The results show that,under the same cold rolling and annealing system,the iron loss(P15/50) of annealed samples whose hot bands has been normalized by 1 000 ℃×2 min process decreases by 10.5% and magnetic induction(B50) increases by 2.5% compared with the samples whose hot bands was not normalized.The average grain size of non-orient... 
2012-11-28 83 5.8

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 82 5.8

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 80 6.8

本发明公开了一种宽频率低铁损无取向电工钢及其制备方法,属于无取向电工钢生产制造技术领域。它从电工钢表面向内依次包括0.005mm~0.1mm的渗透层和钢材内芯;所述渗透层是由硅原子向电工钢内渗透形成,渗透层中的硅元素含量为3wt%~8wt%;所述钢材内芯包括2.0wt%~5.5wt%的硅元素和不少于93.2wt%的铁元素。本发明能保证无取向电工钢具有低频低铁损性能同时有效降低高频条件下的铁损,具体铁损性能为:铁损P1.5/50≤2.35W/kg,铁损P1.0/400≤13.8W/kg。
2021-11-09 80 6.8

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 79 6.8

针对马钢无取向电工钢孔洞缺陷的分布规律及形貌特征,对缺陷样进行了显微分析,并利用生产实绩数据分析了该缺陷产生的原因。结合热轧生产过程,主要通过避免带钢撞击导卫以及降低导卫结瘤的产生等措施,可有效抑制热卷异物压入产生,从而降低冷轧工序孔洞的产生。 In viewing of the distribution and morphology characteristics of the hole defect of non-oriented electrical steel in Maanshan Iron and Steel Co.,Ltd.,the causes of the defect were analyzed by micro analysis of the defect sample and the production data.Combined with the production process of hot rolling,by avoiding the impact of strip steel on the guide and reducing the nodule formation on the guide,the pressing of foreign bodies in hot coiling could be effectively suppressed,thus reducing the fo... 
2022-01-28 78 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 78 6.8

本发明涉及一种转炉冶炼回炉高硅钢水的方法,转炉中兑入回炉高硅钢水,再兑入铁水至预定装入量,使转炉中的钢水硅含量≤1.0%;转炉采用双渣冶炼的方法,加入的造渣料包括活性石灰、白云石、轻烧白云石、烧结矿;吹炼时氧累达到83%‑85%时使用副枪测量TSC,按TSC测量数据吹炼至钢水目标成分和目标温度后提枪,出钢。本发明实现转炉冶炼回炉高硅钢水的稳定控制。降低钢厂经济损失,减少炼钢生产事故率。提高了炼钢生产作业率。
2021-09-14 78 6.8

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 78 5.8

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