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一种厚度≤0.15mm无取向硅钢带,其组分及wt%为:Si:2.0~6.5%,Mn:0.13~0.40%,S≤0.020%,P≤0.020%,Als:0.15~0.9%,C≤0.010%;工艺:经冶炼、浇注成坯后热轧至中间坯厚度;冷轧;常温脱脂;光亮罩式退火;经碱洗后涂覆;分条。本发明在保证铁损P1.0/400£13W/kg,磁感B2000³1.5T下,还使钢带厚度公差不超过±0.005mm,最小叠装系数³0.92完全满足连续冲制要求。
2021-11-15 190 6.8

本发明的一个实施方案提供一种取向电工钢板及其制造方法,以重量%计,所述取向电工钢板包含:Si:3.0‑4.5%、Mn:0.05‑0.2%、Al:0.015‑0.035%、C:0.0015%以下(0%除外)、N:0.0015%以下(0%除外)、S:0.0015%以下(0%除外)、余量的Fe及其它不可避免的杂质,并且满足以下关系式1和关系式2。[关系式1](W13/50/W17/50)≤0.57[关系式2](W15/50/W17/50)≤0.76(其中,所述关系式1中,Wx/y表示施加磁场的大小为x/10T且频率为yHz的条件下的铁损值)。
2020-12-15 212 6.8

本发明公开了一种高磁感取向硅钢实验室轧机一次冷轧方法,包括:1)取样,实验室冷轧材料选取经过常化酸洗后的厚度为2.3mm的取向硅钢试样;2)制样,利用取向硅钢专用剪板机,裁剪试样尺寸为轧向600mm×横向150mm;将试样表层轻涂一层薄薄的轧制油;3)冷轧轧制规程制定,轧前厚度为2.3mm;其中:轧制总道次为6次时轧后厚度为0.35mm,轧制总道次为7次时轧后厚度为0.27mm,轧制总道次为8次时轧后厚度为0.23mm。本发明的目的是提供一种高磁感取向硅钢实验室轧机一次冷轧方法,为工业试制提供一定的技术参考,以及后续工艺研究提供了更加可靠的试样和条件。
2021-11-25 231 6.8

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、1.67kg/t钢时,钢中钙含量分别为0、2×10-6、4×10-6;随着钙合金添加量增大,钢中夹杂物粒度逐渐由0~2μm向2~4、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,或同AlN、CaS夹杂复合;粒径为5~10μm区间,钢中的夹杂物基本以钙的氧、硫化物为主。与钙处理前相比,钙合金添加量为0.67、1.00、1.67kg/t钢时,粒径小于1.0μm的微细夹杂物减少幅度分别为68.06%、87.50%、94.94%。钙合金添加量为1.67kg/t钢时,可以去除钢中绝大部分的微细夹杂物。 Ca alloy was added into the liquid steel during RH refining,and the results show that Ca concentration in final Si steel sheets is insignificant,about 0,2×10-6 and 4×10-6 when the added amount of Ca is 0.67,1.00 and 1.67 kg/t steel,respectively.With the increase in the added Ca alloy amount,the inclusions in the steel gradually change from those of 0~2 μm to those of 2~4 and 4~6 μm.Under different Ca treatments,there exist MnS and CuxS inclusions whose size is below 1 μm as well as MnS and CuxS ... 
2013-02-28 182 5.8

本发明揭示了一种高牌号无取向硅钢及其生产方法,生产方法包括冶炼、连铸、热轧、酸洗、切边、常化、冷轧,冶炼最终所得钢水化学成分以质量百分比计为:C≤0.005%、Si≥2.8%、Als0.5~1.2%、Mn0.25~0.8%、P≤0.02%、S≤0.0040%、N≤0.0020%、Nb≤0.0020%、V≤0.0020%、Ti≤0.0020%,其余为Fe以及不可避免的杂质;切边工序对热轧卷板的两侧进行切边,单侧的剪切宽度为10~20mm;常化在罩式退火炉中进行,均热温度为T={(990~1010)‑100×[30×(Si)+20×(Al)]}℃,(Si)为Si的质量百分比,(Al)为Al的质量百分比,均热时间为6h,之后冷却;钢卷在罩式退火炉中冷却至预设温度T0时取出送至冷轧线冷轧,T0为120~180℃,第一道次轧制时的轧制力恒定且轧制力为11000~12000kN。本发明可避免高牌号无取向硅钢在冷轧过程中由于脆性高而导致的频繁断带。
2021-11-10 203 6.8

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... 
2014-08-28 216 5.8

本实用新型公开了一种变压器铁芯硅钢片的堆叠装置,包括底座、摆动机构、摆动板和垫高倾板,所述底座上设置有摆动机构,所述摆动板的一端铰接设置在底座上,且所述摆动板间距于摆动轴线的板体与摆动机构对应设置,所述摆动机构驱动摆动板在竖向面内进行往复摆动,所述垫高倾板间距于摆动板设置在底座上,且所述垫高倾板与摆动板之间构成用于叠放硅钢片的叠放区,所述叠放区的底部呈高低倾斜设置,且所述叠放区的低端侧朝向于摆动板,能够使得硅钢片的收集简单,且十分整齐。
2021-12-30 325 6.8

采用EBSD检测技术,分析了50W800无取向电工钢在重要生产工序间织构的演变以及织构沿带钢宽度方向上的差异性。结果表明:热轧板织构沿带钢宽度方向上的差异性主要体现在表层织构。带钢边部表层织构主要由旋转立方织构、α纤维织构以及少量的γ纤维织构组成,带钢宽度1/4处的表层织构主要存在高斯织构,带钢宽度1/2处的表层织构主要为(110)面织构以及少量的铜型织构。各处的带钢宽度1/4处和1/2处的织构类型基本一致,都以α纤维织构和旋转立方织构为主。冷轧后,各处的表层织构类型差异较小,均为γ纤维织构和α纤维织构。由板宽边部至中心处织构强度值逐渐降低。退火后,各处织构的组分基本一致,为较强的γ纤维织构和较弱的(100)面织构。各处织构强度值差异较小,变化趋势与冷轧板一致。 The texture of non-oriented electrical steel 50W800 was detected by EBSD technique.The evolution of the texture between important processes and the difference of texture along the width direction of strip were analyzed.The result shows that the difference along the width direction of strip of texture at the surface of hot rolled plate is most obvious.The texture at the surface of strip edge is primarily made of rotating cube texture,αfiber texture and weakγfiber texture.Goss texture is mainly co... 
2014-09-28 184 5.8

采用火花源原子发射光谱分析测定电工钢中超低C,研究试样制备方法、Ar纯度和压力等条件对分析结果的影响,并对工作曲线进行了优化,实现了一次分析同时测定电工钢的多种元素,满足炉前和精炼在线分析的要求。 Ultra-low carbon in electrical steel is determined with spark-source atom emission spectrum.It is researched the influence of sample making method,purity of Ar,and pressure on analysis result.The work curve is optimized.The determination of many elements in electrical steel only in one analysis is realized.It meets demands of on-line analysis for blast furnace and refining. 
2011-09-28 163 5.8

在现普通冷轧无取向硅钢的基础上,降低Si含量,复合添加少量辅助元素,组合热轧板处理和成品退火加热技术,研制出了免常化处理的高磁感、低铁损并具有良好耐酸腐蚀性能的新系列无取向电工钢。 Based on existing common cold rolled non-oriented silicon steel,a new series of non-orientedelectrical steel with high induction,low core loss and excellent anti-corrosion property has been developed by reducing Si element,adding complexly a small amount of supplementary elements,and employing combined treatment of hot rolled sheet and finished product annealed heated technology. 
2013-02-28 163 5.8

研究了应用电感耦合等离子体质谱法(ICP-MS)测定硅钢中痕量铜和镍的分析方法。采用硝酸分解样品,通过内标校正和基体匹配消除了基体干扰的影响,同时根据测量时存在的质谱干扰情况,选择同位素65Cu和60Ni作为测定元素和通过调节仪器参数使双电荷离子的产率最低,以减少带来的干扰。该方法用于硅钢中痕量铜和镍的测定,所得的结果与ICP-AES法测定结果完全吻合,各元素测定结果的RSD值小于5%,加标回收率为97.3%~100.3%。 A method for the determination trace copper and nickel in silicon steel by inductively coupled plasma mass spectrometry(ICP-MS) was studied.The samples were dissolved in HNO3.The effect of matrix interference was eliminated by internal standard correction and matrix matching.Meanwhile,according to the mass spectral interferences in determination,the isotopes including 65Cu and 60Ni were used as measuring elements.The yield of double-charge ions were minimized by adjusting instrumental parameters... 
2011-05-28 190 5.8

本实用新型公开了一种能限位的硅钢片,包括主体,主体的上表面设置有限位柱,限位柱的轴心处开设有散热孔,主体的上表面开设有限位槽,主体的外壁设置有凹槽,主体的下表面设置有限位凸起,主体的下表面开设有限位孔;该一种能限位的硅钢片通过在主体的外壁设置凹槽可以方便拿取,在其上下表面分别设置限位柱与限位孔,可以使主体间的位置相对固定不会轻易挪动。
2021-08-23 178 6.8

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