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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... 
2022-01-28 192 5.8

利用场发射电镜及能谱仪研究了取向电工钢薄、厚板坯铸锭中不同区域的析出相差异,确定了MnS、AlN及Fe3C的析出顺序和形貌特征。结果表明AlN以先析出的MnS为形核核心,形成粗大微米级的复合析出相。针状Fe3C既可以在复合析出相表面形成也可以在基体中单独出现,主要受冷却速度的影响。在1250℃保温1~2 h,AlN、Fe3C均可完全回溶,但部分MnS仍不回溶。MnS尺寸随着保温时间延长而增大。导致热轧板中沿轧向分布的粗大MnS,减弱了粒子钉扎力。 Precipitates in thin and thick slabs of electrical silicon steel were investigated by means of field emission SEM and EDS analysis.The precipitation sequence and the morphology of MnS,AlN and Fe3C particles were identified.AlN particles are observed to be nucleated on surface of MnS forming micron-meter-sized complex particles.Acicular Fe3C can precipitate on surface of the complex MnS/AlN particles or directly from matrix depending on cooling rate of the slabs.After holding at 1250 ℃ for 1-2 h,... 
2011-08-28 181 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。
2021-08-23 174 6.8

主要对硅钢退火炉耐材施工进行阐述,对一期工程与二期工程施工经验进行总结,包括设计、施工、耐材生产、人员素质等方面,指出了工程项目所所存在的不足,为同类型炉窑的施工提供借鉴。 This paper describes the construction of silicon steel annealing furnace refractories;and it was summarized the construction experience of phase-Ⅰ and phase-Ⅱ projects,including design,construction,refractory production,the quality of personnel etc,and pointed out the shortcomings of the project,which provided a reference for the construction of the same type of furnaces. 
2023-05-11 1.4k 5.8

一种适用于取向电工钢产线的一体化生产计划排程方法,基于L4,建立基于如下步骤的整条取向电工钢产线的自动生产计划排程,S1:以排程所需的必要数据为基础,按核心工序为排程起点,分别依次递进式完成前工序、后工序的排程,形成初始计划排程;S2:对初始计划排程建立基于设定的评价因子构成的综合评估,形成由综合评估结果构成的综合评估结果数据集;S3:对综合评估结果数据集建立优化算法运算,根据运算结果确定生产计划排程。本发明的一种适用于取向电工钢产线的一体化生产计划排程方法,可实现较大程度的自动化,提高生产计划编制效率,增强操作人员对生产计划的整体情况掌握,并可根据设备状态及计划执行情况自动对计划作出快速响应。
2021-08-25 189 6.8

本实用新型实施例涉及一种硅钢卷、定子、转子铁芯、转子和盘式电机,所述硅钢卷由多条硅钢条卷绕形成具有多层硅钢层结构,每条硅钢条均构成多层硅钢层,每条硅钢条所构成的多层硅钢层中,距离最近的两层硅钢层之间具有一层或多层其他硅钢条构成的硅钢层。该硅钢卷用作转子铁芯或定子时降低了层间涡流损耗。
2021-04-14 156 6.8

热轧轧制工艺对产品性能和轧制稳定性影响很大,对中低牌号无取向电工钢,当在两相区轧制时,热轧塑性明显降低,板形变坏,易出现边裂等情况。以50W1000为例,通过对其变形抗力进行研究,得出把两相区控制在F4与F5之间为最佳轧制工艺的结论。在此基础上制定了一套较为合理的热轧工艺制度。采用新的轧制工艺后,50W1000热轧精轧的稳定性明显改善,热轧产品合格率由开发初期的40%左右提高到95%以上。 The hot rolling process has great influence on product′s performance and rolling stability.For the low medium grade non-oriented electrical steel,when non-oriented electrical steel is rolled in tow phase region,the hot rolling plasticity reduces obviously,the shape of strip goes bad and easily to crack at the edge.The deformation resistance of 50W1000 steel was investigated.The results show that the optimal rolling process is to control the two phase region between F4 and F5.Based on the results... 
2011-03-28 214 5.8

本发明公开了硅钢片卷材加工用张力机构以及硅钢片剪切机,包括安装架、转动装置和按压装置,安装架的上安装块、连接块和下安装块组成凹槽,转动装置包括下转轴和转动驱动单元,下转轴水平设置,可转动地安装于下安装块上,设置于凹槽中,按压装置包括有上转轴和按压驱动单元,上转轴水平设置于下转轴的上方,可转动地安装于上安装块上,设置于凹槽中,并且可沿上安装块上下运动,其中,上转轴可与下转轴抵接。根据本发明的硅钢片卷材加工用张力机构以及硅钢片剪切机,可加强硅钢片卷材输送过程中的张力,降低硅钢片卷材输送的位置偏差率,提高产品合格率,提高原材料利用率,从而提高生产效率。
2020-12-30 167 6.8

根据现场实际的生产控制情况,指出了热轧原料断面轮廓缺陷以一定的比列遗传给了冷轧带钢,分析了不同热轧原料断面轮廓对冷轧电工钢尺寸精度的具体影响,提出了相应的规律。并阐明了严格控制热轧原料断面轮廓形貌,对保证冷轧电工钢尺寸精度具有重大意义,对于中国现行的冷轧电工钢生产具有指导意义。 Based on the actual situation of production control,it was pointed out that the section profile defects of hot-rolled raw materials were geneticed to the cold-rolled strip.The specific impact analysis for the profile of different hot-rolled raw materials to the dimensional accuracy of cold-rolled silicon steel was analyzed.As a result, the corresponding orderliness are given;And the strict control to section profile of the hot-rolled material is of great significance to ensure the dimensional ac... 
2014-01-28 152 5.8

本发明公开了一种减少低温高磁感取向硅钢点状露金缺陷的方法。本发明通过控制低温高磁感取向硅钢的脱碳和渗氮工艺,特别是通过控制脱碳露点、渗氮露点、脱碳氧化度、脱碳时间来调节钢板经脱碳渗氮后表面形成的内氧化层中FeO/SiO2的比例,结合氧化镁退火隔离剂的含水率控制,获得了一种可避免点状露金缺陷的低温高磁感取向硅钢生产方法。
2021-10-26 196 6.8

试验研究了0.3 mm取向硅钢冷轧板(/%:0.046C,3.07Si,0.09Mn,0.029P,0.004S,0.005A1)的退火温度(760~880℃7 min)和退火时间(820℃3~9 min)对该钢的晶粒尺寸,再结晶和织构的影响。结果表明,最佳初次再结晶退火工艺为820℃5 min,该钢的平均晶粒尺寸为14.20μm,完全再结晶率为92%,不利{111}<110>结构含量为3.16%,有利织构{111}<112>,{012}<001>和高斯织构含量分别0.40%,4.73%和2.46%。 The effect of annealing temperature(at 760 ~ 880 X.for 7 min) and time(at 820℃ for 3~9 min) on grain size,recrystallization rate and texture of 0.3 mm cold-rolled sheet of oriented silicon steel(/%:0.046C,3.07Si,0.09Mn,0.029P,0.004S,0.005Al) has been tested and studied.Results show that with optimum recrystallized annealing at 820℃ for 5 min,the silicon steel average grain size is 14.20 fun,the complete recrystaUization rate is 92%,the unfavourable-texture {111}< 110 > content in steel is ... 
2014-03-28 164 5.8

本实用新型公开了一种变压器铁芯硅钢片叠装对齐工装,包括叠装平台、定位板、推齐板和下压板;定位板和推齐板分别位于叠装平台的两侧,下压板位于叠装平台的上方;定位板用于对铁芯长度或宽度侧进行定位;推齐板平推铁芯使各硅钢片抵靠定位板而对齐;下压板下压铁芯使各硅钢片叠装紧密。本实用新型提供的一种变压器铁芯硅钢片叠装对齐工装,能够提高铁芯生产精度,并提高硅钢片叠装效率。
2021-12-22 254 6.8

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