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采用ZMLMC超高梯度定向凝固装置,研究了5种凝固速率(10、35、80、150和450μm/s)对定向凝固50W600无取向硅钢的固液界面稳定性转变规律和一次、二次枝晶间距的影响。研究结果表明,在特定的温度梯度下,随着凝固速率的增加,定向凝固的固液界面由胞状晶转变为胞状枝晶,再转变为细小的树枝晶。随着凝固速率的增加,定向凝固组织的枝晶形貌逐渐细化,一次和二次枝晶间距逐渐减小,且与冷却速率之间都符合指数关系:λ1=151.73×(G L·R)-0.31,λ2=22.07×(G L·R)-0.44。当冷却速率达到4.275℃/s时,一次、二次枝晶间距分别为112μm、14.1μm。 Under the conditions of certain temperature gradient and different solidification rate,the directional solidification experiment of non-oriented electrical steel 50W600 was carried out.The microstructure of 50W600 steel was also analyzed in different solidification rate.The result shows that the solid/liquid interface of the steel undergoes an evolution from cellular,cellular dendrite and finally to fine dendrite morphologies.The dendrite refines gradually and the distance between dendrites decr... 
2013-11-28 112 5.8

分析总结退火工艺各参数对冷轧无取向硅钢磁性能的影响,结合设计和生产实践经验介绍退火工艺中各参数的实际生产取值,并针对现生产工艺过程中出现的典型问题提出解决办法。 It is analyzed and summarized the great influences on magnetism of cold rolled non-oriented silicon steel affected by various annealing process data in this article.The relevant settled ways is raised.According to the actual value presetting ways for various annealing process data based on design and production,as well as typical problems occurred during production. 
2012-05-28 112 5.8

该电磁钢板为母材钢板的其中一个或两个表面中的至少一部分被具有接合能力的绝缘被膜覆盖的电磁钢板,所述绝缘被膜的25~100℃的温度范围的对数衰减率为0.3以下。
2021-06-17 112 6.8

硅钢工业退火炉温度控制具有强耦合、纯滞后、多扰动等特点,它的控制方法代表着一类非线性系统控制的解决方法。以硅钢工业退火炉温度为控制对象,在双交叉限幅控制的基础上引入了智能学习系统,形成了基于智能学习系统的双交叉限幅控制方法来解决此类非线性系统的控制问题,并通过模块化的编程来实现其功能。结果表明:与传统的PID控制相比,该控制方法的控制精度、抗扰性等控制指标有明显提高,是解决此类非线性控制的一种有效方法。 The temperature control of silicon steel industrial annealing furnace has the features of strong coupling,pure lag,multidisturbance. The control method represents the solution of a class of nonlinear control systems. The control object is the temperature control of silicon steel industrial an-nealing furnace, the intelligent learning system based on Double Across Limit Control is introducedand used to solve control problem of this kind of nonlinear system, and the module programming isused to re... 
2014-05-28 112 5.8

借助于EBSD对比研究了常化退火对高牌号无取向电工钢热轧组织和织构演变的影响,分析了常化退火对热轧板各厚度层织构的演变规律。结果表明,常化退火改善了热轧组织的均匀性,并弱化了热轧变形的γ纤维织构。升高常化退火温度,可增大热轧板的晶粒尺寸,提高{100}和{110}织构组分占有率,有利于提高无取向电工钢成品板的磁性能。 Effects of normalizing annealing on microstructure and texture of high-grade non-oriented electrical steel hot-rolled sheet were investigated by EBSD. Emphasis was put on the effects of normalizing annealing on texture evolution in the sheet thickness. The results show that the hot-rolled microstructure homogeneity is improved and the γ-fiber texture is weakened by normalizing annealing treatment. The grain size of hot-rolled sheet and intensity of the {100} and {110} favorable texture can be in... 
2014-02-28 112 5.8

针对目前大部分无取向电工钢处理液为含铬处理液、且需在较高温度下固化的情况,在分析成膜物质性质的基础上,试验研究了一种可低温快速固化的电工钢环保绝缘处理液,研究了其涂装工艺,并测定了涂层的附着性、绝缘性、耐热性、耐蚀性等性能。试验结果表明:该处理液可在150~250℃下快速烘干固化,涂层表面光滑且致密均匀,性能优良,可满足中小电机的使用要求。 At present,most of the insulating fluid for non-oriented electrical steel contains chromium,and should be cured at high temperature.On the basis of analyzing the characteristics of the film-forming substance,a kind of eco-friendly insulating fluid with lower curing temperature for non-oriented electrical steel sheet was developed in the experiments.Then its coating process was studied,and the adhesiveness,insulativity,heat resistance,corrosion resistance and other properties of the coating was m... 
2013-04-28 112 5.8

【作者】 姚昌国; ...
2011-05-28 112 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。
2020-12-30 112 6.8

利用DSC、XRD,结合热焓分析对硅钢级氧化镁和二氧化硅的固相反应行为进行了研究。比较了不同二氧化硅原料及混合方法对硅钢级氧化镁反应性的影响,找到了一种更为有效的硅钢级氧化镁反应性的评估方法,克服了传统柠檬酸活性法在比较不同厂家生产的氧化镁的反应性上的局限性。进一步研究了Na2B4O7添加剂、TiO2添加剂对氧化镁和二氧化硅反应行为的影响,结果表明,Na2B4O7添加剂含量的增加对反应有利,而TiO2添加剂对反应有阻碍作用。 The solid-state reaction behavior between silicon-steel grade MgO and SiO2 was investigated by DSC and XRD combined with enthalpimetric analysis.The influence of different kinds of SiO2 and different preparation methods were studied and a specifical measurement that is more reliable was proposed to evaluate reactivity of silicon steel grade MgO.It overcomes the limitation of the traditional citric acid activity(CAA) method,which can not be used to evaluate the reactivity of... 
2014-03-28 112 5.8

本实用新型公开了一种具有柔性压料机构的飞剪式硅钢剪床,压料机构包括对称设置的支板和侧板,两个侧板位于两个支板之间,且两个侧板位于传送系统传送带顶部的左右两侧,两个支板通过回位组件在底板的顶部进行转动,本实用新型涉及剪床技术领域。该具有柔性压料机构的飞剪式硅钢剪床,通过设置压料机构,当带状硅钢发生跑偏时,其侧边会对一侧的侧板施压,受压的侧板对其连接的弹簧进行压缩,弹簧弹力抵消硅钢跑偏的侧向力,通过侧板推动硅钢复位,且压辊会对硅钢进行平复压实,从而避免了带状硅钢因跑偏而造成剪切尺寸不合格,通过上述结构的组合解决了现有的硬性压料装置容易导致带状硅钢在传送时发生形变的问题。
2021-12-07 112 6.8

本实用新型公开了一种新型嵌线结构的硅钢片组件,包括硅钢片组和骨架,硅钢片组由若干相同形状的硅钢片堆叠而成,硅钢片为倒U型的薄片体,骨架由一限位框架和两固定杆组成,限位框架由一矩形框架和位于矩形框架四角的限位凸块组成,硅钢片组卡设在矩形框架上,限位凸块对硅钢片组进行限位,两固定杆平行设置在硅钢片组的上方,且固定杆的两末端分别与限位凸块相固定。本实用新型具有装配简单、不易变形的优点。
2021-05-18 112 6.8

本实用新型涉及板材加工设备领域,具体为变压器铁芯硅钢片打磨设备,包括本体,本体内部开设有工作腔,本体内部设置有用于运输硅钢片的运输机构,本体内部设置有用于打磨硅钢片的打磨机构,本体内部设置有用检测硅钢片边缘整洁程度的检测机构,本实用新型通过运输机构和打磨机构进行配合从而对硅钢片进行去除毛刺和毛边,从而保证铁芯中每组硅钢片均不直接接触;通过检测机构对加工完成的硅钢片进行毛刺和毛边的检测,进一步保证了每组硅钢片的整体质量以及尺寸的精准。
2021-07-01 112 6.8

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