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研究稀土Ce的添加对含Sn高磁感无取向电工钢磁性能及夹杂物的影响。对比分析了两种成分钢的磁性能以及各过程工艺条件下夹杂物种类和分布情况。结果表明,在含Sn高磁感无取向电工钢中加入稀土元素Ce可以粗化夹杂物,提高成品晶粒的均匀性,有效降低铁损;同时Ce的添加不影响Sn元素提高磁感的效果,磁感保持不变。 Effect of Ce on magnetic properties and inclusion of Sn-bearing high permeability non-oriented electrical steel was investigated. A comparative analysis of the magnetic properties and the types and distributions of inclusion in the two sheets with different composition shows that the addition of Ce to the Sn-bearing high permeability non-oriented electrical steel can coarse the inclusion,improve the homogeneity of the finished grain and effectively decrease the core loss. Also,the addition of Ce... 
2014-08-28 230 5.8

本申请实施例公开了一种硅钢片卷绕机调节装置,包括底部支撑座,所述底部支撑座一侧的内部活动套接有伸缩调节板,所述伸缩调节板的上部固定连接有上部定位套,所述上部定位套内部的上端活动套接有第一定位板,所述上部定位套的内部安装有第一螺纹定位杆。该硅钢片卷绕机调节装置,通过带动硅钢片夹持在上下两个夹持板之间,即可带动夹持板之间的挤压力,带动硅钢片两侧位置进行限定,避免硅钢片收卷时出现振动和偏移的问题,同时装置夹持板的内部活动套接有滚轮,即可在硅钢片移动过程中,可带动滚轮旋转,即可带动硅钢片与滚轮之间的摩擦阻力降低,至此可带动硅钢片移动时的灵活性,避免硅钢片移动时出现卡死的问题。
2021-12-15 229 6.8

本发明公开了一种取向硅钢产品的在线性能判级与精确分切装置和方法,使得同一个分卷上的性能分布均匀,避免分卷出现性能废品或多个性能等级的情况,提高分卷性能稳定性。提供的一种取向硅钢产品的在线性能判级与精准分切方法包括生产数据采集、铁损曲线自学习、数据存储、性能在线判级、缺陷数据采集、缺陷判级、智能分切等模块,依据修正后的磁性能全长数据,得到产品的性能判级结果,结合表面缺陷判级结果,综合确定分切位置,制定最佳分切方案。本发明可以实现取向硅钢生产过程中的性能在线判级和精准分切,得到性能均匀、表面质量好的分卷,减少分卷性能不稳定带来的损失。
2021-08-16 229 6.8

本发明涉及一种农用电机用无取向硅钢的生产方法,包括钢水化学成分设计、热轧工艺和冷轧工艺等步骤;钢水化学成分包括:C≤0.04%、Si0.35‑0.55%、Mn0.10‑0.30%、Als0.02‑0.06%、P≤0.030%、S≤0.0040%、O≤0.003%、N≤0.003%,余量为Fe及不可避免的夹杂物。本发明方法生产出的硅钢与家用电机目前使用的普通无取向电工钢50BW1300相比,磁感提高0.02T以上,而且采用普通C含量≤0.040%设计,不需要深脱碳,大幅降低炼钢工序成本,采用无Al无P,低Mn含量,降低合金成本,与普通50BW1300无取向电工钢产品相比,生产成本大幅降低。
2021-12-10 229 6.8

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P1.5/50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 P1.5/50 decreased from2.576 W/kg to 2.408 W/kg.And as the annealing temperature increased,the strength of the unfavorable texture componentγgrad... 
2022-01-28 229 5.8

采用取向分布函数分析了无取向电工钢不同再结晶退火温度下的织构变化及织构对磁感应强度和铁损的影响,并计算了无取向电工钢的磁晶各向异性能。结果表明,随着实验钢的再结晶退火温度升高,Goss织构和立方织构组分显著增强,而{111}面织构强度却减弱。较高的退火温度有利于减小织构因子,提高磁感应强度。磁晶各向异性能计算结果显示,随着再结晶退火温度升高,无取向电工钢板的磁晶各向异性能降低。 The recrystallization texture and the relationship of texture to magnetic induction intensity and core loss of a non-oriented electrical steel were investigated by orientation distribution function analysis. The magnetic anisotropy energy of the steel was calculated also. The results show that,the intensity of Goss texture and cubic texture increases,but the intensity of { 111} texture decreases with increasing recrystallization annealing temperatures of the steel. The higher annealing temperatu... 
2014-02-28 228 5.8

介绍了国内无底层取向电工钢生产技术水平、产量和用途,简述了无底层取向电工钢作为取向电工钢超/极薄带母料及应用于制作大型发电机组铁心、风电等电机铁心和变压器铁心等的情况。 The production technology level,output and application of domestic glassless grainoriented electrical steel were introduced,and the application of glassless grain-oriented electrical steel as parent material of ultra-thin strip of grain-oriented electrical steel and in making large-scale electric generator cores,wind power motor cores and transformer cores were briefly described. 
2022-02-28 228 5.8

采用RH精炼添加钙合金方式对硅钢进行钙处理,结果表明,钙合金添加量为0.67、1.00和1.67 kg/t钢时,钢中Ca含量分别为0、2×10-6和4×10-(6质量分数);随着钙合金添加量的增加,钢中夹杂物粒度逐渐由0~2μm向2~4μm、4~6μm偏移;不同钙处理条件下,钢中均存在粒径小于1μm和粒径为1~5μm的MnS、CuxS夹杂物,后者或单独存在,或与AlN、CaS夹杂复合;钢中粒径为5~10μm的夹杂物基本以Ca的氧化物和硫化物为主。与未经钙处理的炉次相比,钙合金添加量为0.67、1.00和1.67 kg/t钢时,粒径小于1.0μm的夹杂物减少幅度分别为68.06%、87.50%和94.94%。钙合金添加量为1.67 kg/t钢时,可以去除钢中绝大部分的微细夹杂物。 In order to improve the properties of final silicon steels,the calcium treatment was adopted by adding Ca alloys into the liquid steel during the RH refining process.Results show that when the addition of Ca alloys is 0.67 kg/t,1.00 kg/t and 1.67 kg/t,the corresponding Ca content in silicon steels is 0,2 × 10-6 and 4 × 10-6 respectively.With the increase of Ca alloy addition,the particle sizes of inclusions in steels become 2~4 μm and 4~6 μm,from 0~2 μm.Under different calcium treatments,there e... 
2013-02-28 228 5.8

本发明提供了一种超低铁损无取向硅钢薄带,以质量百分比计,其成分包括C≤0.005%,Si:3.5~4.0%,Mn:0.1~0.3%,Als≤0.005%,P≤0.05%,S≤0.005%,Cu≤0.08%,N≤0.003%,Sn:0.04~0.08%,其余为Fe及不可避免杂质,所述硅钢薄带中Mn与S的含量比Mn/S≥50,所述硅钢薄带厚度为0.3‑0.4mm。本发明还提供了一种超低铁损无取向硅钢薄带的制备方法。本发明提供的一种超低铁损无取向硅钢薄带,具有高磁感、低铁损等优良性能,且其制备工艺流程短、容易实现、生产效率高、生产成本低、节能降耗明显。
2021-12-14 228 6.8

薄带连铸流程下取向硅钢粗大λ晶粒(〈100〉//ND,normal direction)的“遗传”会导致磁性能恶化.为解决这一问题,针对取向硅钢的热轧孪生行为开展研究,结果表明:凝固组织粗大的取向硅钢在650℃热轧时可产生大量{112}〈111〉形变孪晶,这与具有高层错能的硅钢在较高温度下难以孪生变形的传统认知不同.热轧过程中复杂的应力状态降低了变形孪晶的取向依赖性,由于具有更高的储存能,孪晶界/孪晶界及孪晶界/晶界交叉点成为再结晶形核的优先位置,大大提高了常化过程中的再结晶率,受沿孪晶界应变分布及孪晶间距离的限制,沿孪晶界形核的再结晶晶粒通常呈“饼状”,最终形成以细小且取向漫散的再结晶晶粒为主的常化组织,消除了初始凝固组织中有害的粗大λ晶粒. In strip casting grain-oriented silicon steels, the inheritance of coarse λ grains(〈100〉//ND, normal direction) can deteriorate their magnetic properties. To solve the problem, twinning behaviors in strip casting grain-oriented silicon steels during hot rolling were investigated in this work. It is found that after rolling at 650 ℃, a number of {112}〈111〉deformation twins are formed in the coarse solidification microstructure of the steels, in contrast to the well-accepted view that it is diffic... 
2022-02-28 228 5.8

叠片系数是冷轧无取向电工钢的重要质量指标。为了提高叠片系数,必须保证无取向电工钢板形良好以及横向厚差小。针对攀钢冷轧厂4机架HC轧机轧制无取向电工钢的边部减薄问题,以无取向电工钢横向厚差最小作为目标函数,建立了一套针对无取向电工钢边部减薄控制的辊型曲线优化数学模型,开发了无取向电工钢专用辊型曲线,使无取向电工钢横向厚差从25μm降低到10μm以下,取得了良好的控制效果。 The lamination factor is an important quality index of non-oriented silicon steel strip.Considering the lamination factor,the non-oriented silicon steel must have a good shape and a smaller transverse thickness difference.In order to solve the edge thinning of non-oriented silicon steel strip in Panzhihua Steel,a mathematic model for designing the roll shape is built.In the model,the transverse thickness difference of non-oriented silicon steel strip is taken as the objective function.Based on t... 
2011-01-28 228 5.8

本实用新型公开了一种变压器铁芯硅钢片叠装平台,包括支撑架、升降装置、铁芯架和硅钢片支撑板;铁芯架为硅钢片叠放形成铁芯的作业架,硅钢片支撑板用于储放构成铁芯的硅钢片,铁芯架及硅钢片支撑板均通过升降装置活动设置于支撑架上,且在叠装作业过程中,铁芯架与硅钢片支撑板通过升降装置驱动同时升降。本实用新型提供的一种变压器铁芯硅钢片叠装平台,提高铁芯叠装作业的便捷性,降低劳动强度,提高效率。
2021-12-22 228 6.8

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