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一种分步调控制备高磁感高强度无取向电工钢的方法,按以下步骤进行:(1)按设定成分采用转炉冶炼钢水,制成连铸坯,含C0.001~0.008%,Si1.5~4.8%,Cu0.5~2%,Ni0.5~1.5%,Al0.2~1%,Mn0.2~1.5%,P<0.005%,S<0.005%,其余为Fe;(2)将连铸坯置于均热炉保温,多道次热轧相邻两道次间隔时间为30~180s;空冷;(3)常化处理;(4)多道次冷轧;(5)退火处理;(6)时效处理。本发明的方法成本较低、工艺简单,生产的无取向电工钢兼具优异的力、磁性能,能够很好的满足驱动/牵引电机的使用需求。
2021-08-09 173 6.8

试验研究了退火温度(850~950℃)和时间(5~18 min)对2.3 mm热轧硅钢板(/%:0.036C,3.15Si,0.21Mn,0.005P,0.007S,0.032A1)6道次轧制的0.35 mm冷轧板组织和织构的影响。结果表明,退火温度越高,晶粒平均尺寸越大,900℃5 min退火时平均晶粒尺寸41.39μm,试样织构主要集中在γ取向线上的{111}<112>织构组分和{111}<110>织构组分;900℃18 min退火时平均晶粒尺寸为48.08μm,试样的{111}面织构和{112}面织构密度都明显减弱,{001}面织构增强,磁性能较优。 The effect of annealing temperature(850 ~950 ℃) and holding time(5 ~ 18 min) on structure and texture of 0.35 mm sheet by 6 passes cold-rolling from 2.3 mm hot-rolled plate of silicon steel(/%:0.036 C,3.15 Si,0.21 Mn,0.005 P,0.007 S,0.032A1) has been tested and studied.Results show that the higher the annealing temperature the coarser the average grain size;As annealing at 900 ℃ for 5 min the average grain size of steel sheet is 41.39 μm,and the texture in sample is mainly concentrated in y orie... 
2014-06-28 187 5.8

本实用新型涉及硅钢生产设备技术领域,具体公开了一种硅钢清洗用多段式清洗辊结构,包括中间辊和可拆卸连接在中间辊两端的支撑辊,所述中间辊和支撑辊的外径相等,中间辊与支撑辊的外壁上均固定有刷毛,所述支撑辊远离中间辊的端部为封闭设置,且同轴固定有转轴。采用本专利中的清洗辊结构,只用更换中间辊即可,无需对整个清洗辊进行更换,节省了设备成本投入;另外将支撑辊远离中间辊的端部为封闭设置,则是为了防止在工作时,液体渗入,避免对清洗辊的内部结构产生腐蚀等问题。
2020-12-29 165 6.8

本实用新型提供一种硅钢片模具产品的吸料装置,包括固定架、电动伸缩杆、微型吸气泵、操作台、吸气机构以及放置机构,所述固定架上表面设有电动伸缩杆,所述固定架上表面设有微型吸气泵,所述微型吸气泵右端面设有吸气口,所述吸气口右端设有气管,所述电动伸缩杆底部设有吸气机构,所述吸气机构底部设有操作台,所述操作台上表面设有固定柱,所述固定柱前表面设有放置机构,与现有技术相比,本实用新型具有如下的有益效果:通过设置的橡胶套,代替手进行硅钢片的取料,通过设置固定杆,实现橡胶套的自动放料,更安全,通过设置的放置机构,实现硅钢片倾斜放置,方便进行硅钢片的拿取进行变压器装配。
2021-01-05 180 6.8

分析了高转矩和高转速条件下高效驱动马达铁芯材料对无取向硅钢磁性能要求,讨论了无取向硅钢的高磁通密度和低铁损对电机转矩和效率的影响,介绍了国内外高磁感无取向硅钢发展情况。在生产工艺上,提高钢质纯净度,弱化夹杂物和第二相粒子对畴壁移动和再结晶晶粒长大的钉扎作用,添加微量晶界和带钢表面的偏析元素促使有利织构发展等技术可提高无取向硅钢的磁通密度。 The requirements of high efficient drive motor core materials under the conditions of high torque and high speed were analyzed.The effects of high magnetic flux density of non-oriented silicon steel on the torque and efficiency of the motor were discussed.The development of non-oriented silicon steel with high magnetic was introduced.The magnetic flux density of non-oriented silicon steel sheet can be obviously improved by some production technologies,such as purification steel,weakening the pin... 
2023-05-11 1.45k 5.8

无取向硅钢特别是中牌号以上的无取向硅钢,随着含硅量的提高,常温下塑性较差,冷轧过程中轧制力明显提高,如果存在原料质量问题,极易发生断带事故,影响硅钢冷轧过程的成材率和生产效率。通过优化冷轧工艺参数,可提高冷轧稳定性。生产中通过合理分配冷轧各道次压下量和轧制速度,保证了轧制过程的稳定,很大程度减少了冷轧断带事故的发生。 Non-oriented silicon steel, especially in the low and middle grade, with the increase of silicon content, plasticity is poor at room temperature, rolling force in cold rolling process significantly improved .If there is the quality defect of raw materials , easily sheet is rolling off. Affect finished product rate and production efficiency in process of cold-rolled silicon steel. Through optimization of cold rolled process parameter , improve the stability of cold-rolling process. Through reason... 
2011-02-28 203 5.8

本实用新型公开了一种防溢出的无取向硅钢绝缘涂液存储装置,涉及无取向硅钢绝缘涂液技术领域,为解决现有无取向硅钢绝缘涂液存储设备在存储过程中存在涂液过满,导致液体溢出产生浪费现象的问题。所述绝缘涂液存储机构本体上方的一侧设置有液位监测器,所述液位监测器的下端设置有监测杆,所述液位监测器的输出端设置有单片机,且液位监测器的输出端与单片机电性连接,所述绝缘涂液存储机构本体的内壁设置有压力传感器,且压力传感器设置有若干个,所述压力传感器的输出端与单片机的输入端电性连接,所述绝缘涂液存储机构本体的内部设置有泵体,且泵体设置有两个,所述泵体的一端设置有溢流输送管。
2021-09-02 183 6.8

研究了CSP流程试制50W270高牌号无取向硅钢热轧→常化→冷轧→退火过程中织构的演变.利用电子背散射衍射技术对全流程织构进行测量和分析.发现热轧板织构在厚度方向上存在较大差异,表层主要为铜型、黄铜和高斯织构,1/4层存在微弱的高斯织构和旋转立方织构,中心层以γ纤维织构和旋转立方织构为主,还含有较弱的α纤维织构.与热轧板相比,常化板表层和1/4层织构变化不大,中心层旋转立方织构和α纤维织构增强.冷轧板各层均具有α纤维织构和γ纤维织构.与冷轧板相比,成品板各层中α纤维织构基本消失,还出现了立方织构和高斯织构. This article focuses on texture evolution in 50W270 high-brand non-oriented silicon steel produced by CSP in hot rolling,normalizing,cold rolling,and annealing processes.The texture in the whole process was measured and analyzed by electron back-scatter diffraction.It is found that the texture along the thickness direction in hot-rolled strips changes obviously;there are mainly copper,brass,and Goss textures in the surface layer;the 1/4 layer has weak Goss texture and rotating cube texture;γ-fib... 
2014-09-28 199 5.8

针对传统工艺生产硅钢周期长、能耗大等缺点,采用双辊连铸工艺制备3%Si无取向硅钢连铸薄带,利用MEM,SEM和TEM观察了铸带的组织、织构及析出物,同时对比了Al的质量分数为0.6%和0.9%的连铸薄带在组织、织构及析出物特征方面的异同.结果表明:双辊连铸工艺生产的3%Si无取向硅钢铸带的组织为均匀等轴晶粒,平均晶粒尺寸约为300μm;织构组成随Al质量分数的不同具有明显差别,Al质量分数为0.9%的铸带中{100}织构强度是随机织构的7倍;铸带中的析出物为AlN和MnS,最大尺寸分别为500和50 nm左右. Given the lengthy production cycle,high energy consumption,and other shortcomings of the traditional process for producing silicon steel,a twin-roll casting process was used to produce 3%Si non-oriented silicon steel casting strips. MEM,SEM,and TEM were used to compare micro-structure,texture,and precipitate characteristics of a casting strip containing 0.6%Al with another containing 0.9%Al.The structure of 3%Si non-oriented silicon steel produced by the twin-roll casting process was a uniform i... 
2011-04-28 186 5.8

对w(Si)=3%无取向硅钢进行表面机械研磨处理(SMAT)和异步轧制(CSR),获得表面纳米结构,再进行550~650℃、4 h固体粉末渗硅处理,用透射电镜(TEM)、扫描电镜(SEM)和X射线衍射仪(XRD)研究表层组织演变。结果表明:经过SMAT后,w(Si)=3%无取向硅钢表面形成了等轴状、取向呈随机分布的、晶粒尺寸为10 nm的纳米晶组织;异步轧制后,表面纳米晶组织保持不变;550~650℃、4 h渗硅处理后,SMAT+CSR样品表面形成化合物层,其厚度随着温度的升高由17μm增加到52μm;化合物层由Fe3Si和FeSi相组成. Nanostructured surface layer was fabricated on a 3%(mass fraction) non-grain oriented silicon steel by means of surface mechanical attrition treatment(SMAT) and cross-shear rolling(CSR),and then a solid powder siliconizing treatment was carried out for the SMAT+CSR sample at 550~650 ℃ for 4 h.The microstructural evolution was examined by using transmission electron microscopy(TEM),scanning electron microscopy(SEM) and X-ray diffraction(XRD).Experimental results show that: equiaxed nanocrystallin... 
2011-03-28 174 5.8

对低温法生产的以AlN为主抑制剂的Hi-B取向硅钢高温退火过程进行了中断实验,借助EBSD及TEM技术对高温退火连续升温过程中织构与析出物的演变进行了研究。实验结果表明,800℃时ODF图出现高斯织构组分,但强度很弱,高斯晶粒偏离角在10°以上;950~1 000℃时高斯晶粒异常长大,偏离角3~6°;高温退火过程析出物主要有球形、规则立方形及不规则多面体形3种形貌,由于渗N的影响,Zener因子先增大再减小,并且析出物在高斯晶界前沿优先粗化。 The annealing process at high temperature of Hi-B silicon steel using low slab reheat temperature and with AlN as the inhibitor has been studied by interrupting test,and the evolution of texture and precipitates during continuous heating-up in the annealing process at high temperature was analyzed by EBSD and TEM. The results showed that Goss texture appears in ODF at 800 ℃,but the intensity of Goss texture was very weak and the deviation angle was more than10°. Goss grains grow abnormally durin... 
2023-05-09 233 5.8

在15 kg真空感应炉上,用CaO-Al2O3-SiO2-MgO渣系进行脱硫试验,探讨了脱硫渣系碱度、MI、Al2O3、CaF2对脱硫效果的影响。研究结果表明,随脱硫渣系碱度、MI、Al2O3和CaF2含量的增加,脱硫率都呈现先增加后减少的趋势。初始硫含量为0.009 33%~0.010 73%,加入脱硫渣系4 min时间内表观脱硫速率为(0.000 96~0.001 49)%/min,平均脱硫率为81.2%,最高达86.8%。当脱硫渣中w(CaO)=58.15%、w(SiO2)=4.85%、w(Al2O3)=25%、w(MgO)=6%、w(CaF2)=6%,脱硫效果最好,此时钢液中硫为0.001 33%。 Experiments on desulfurization of molten steel using CaO-Al2O3-SiO2-MgO based desulfurization slag was carried out in a 15 kg vacuum induction furnace. The effects of desulfurization slag basicity,MI, Al2O3and CaF2on desulfurization of molten steel were studied. The results show that with the increase of basicity,MI,Al2O3or CaF2in desulfurization slag,the desulfurization rate rises initially and then decreases. In addition,as the initial sulfur content is 0. 009 33% ~ 0. 010 73%,the apparent des... 
2014-02-28 179 5.8

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