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本发明公开了一种硅钢退火密封设备,包括台车、内罩和密封介质,所述台车的上端面设双层环形凹槽,所述内罩对应扣在所述双层环形凹槽内,所述密封介质位于所述双层环形凹槽内,所述内罩为下端口内径大于上端内径的梯度内罩。本发明通过双层密封圈,将传统整体的密封圈变为两部分,下部分为固定密封圈,上部分为活动密封圈,当活动密封圈变形损坏时可以及时更换,不需要拆除耐材,降低了生产成本,同时,通过提高内罩底部直径,扩展了变形空间,延长了内罩的使用时间,同时,加大了底部的空间,有利于保护气体的流动,减少了钢卷与料盘接触面的粘带。
2021-03-10 108 6.8

【作者】 王桦; 舒子龙; ...
2013-01-28 90 5.8

研究了采用高温卷取热轧态原料和常化态原料生产高牌号冷轧无取向电工钢组织、织构和磁性能。研究发现钢卷采用750℃高温卷取,下线后立即采用\"保温罩\"对钢卷进行保温,时间96h,然后空冷至100℃时上线生产的工艺可取代常化工艺生产高牌号冷轧无取向电工钢。冷轧上线前,热轧态原料的表层为大量的再结晶组织,这部分组织包括了热轧轧制时保留下来的动态再结晶组织,钢卷本身高温回复后产生再结晶晶粒,以及在保温罩内保温时形成的再结晶组织。高温卷取的热轧态和常化态的热轧卷作为原料时,试样织构类型相似,取向分布密度接近,再结晶后织构类型仍然相似,取向分布密度仍然接近。Goss织构对磁性能增加有促进作用。实验钢中较好的磁性能对应的织构[{100}+Goss]/{111}的比值较高,体现了织构的遗传性。 Microstructure,texture and magnetic properties of high grade cold rolled nonoriented electrical steel which made of hot rolled material with high temperature coiling and with normalization were studied.Steels coiled in high temperature(at 750 ℃),stacked with insulation cover for 96hand air cooled to 100 ℃ were using to manufacture high grade nonoriented electrical steel.The process can replace the normalization process.There are a lot of recrystallized grains in the surface layer of the coil wit... 
2014-03-28 134 5.8

主要研究了0.7%Si无取向电工钢退火试样的组织、晶粒尺寸和织构对其磁性能的影响。结果表明,随着退火温度的升高,晶粒尺寸逐渐增大,组织的均匀性得到改善;ɑ取向线上的纤维织构多集中于{114}<110>和{223}<110>附近,再结晶结束后,织构含量变化不大。{111}<110>织构取向密度值随温度升高而下降,{112}<111>织构与{111}<110>织构变化相反。晶粒尺寸增大对磁感强度的影响较小,而对铁损的影响较大。 Influences of microstructure,grain size and texture on the magnetic properties of 0.7% Si non-oriented electrical steels annealed samples were studied.The results show that with annealing temperature increasing the average grain size is increased gradually.Uniformity of the microstructure is improved;the textures of ɑ-fiber gathered in the vicinity of the { 114} < 110 > and { 223 } < 110 > texture.After recrystallization,the volume fraction of texture changes small.{ 111} < 110 &g... 
2013-07-28 137 5.8

本实用新型公开了一种取向电工钢生产用控温装置,涉及取向电工钢生产用控温技术领域,为解决现有控温装置中的温度检测装置需要蓄电池对其进行供电,不仅增大了能量消耗,也对环境造成影响的问题,所述输送机构上方并列等距固定安装有三个温度检测机构,且两个温度检测机构之间均设置有一个喷水降温机构,所述输送机构上方两侧固定安装有限位块,且限位块内部并列等距设置有四个电动伸缩器,一侧所述电动伸缩器前端固定安装有温差发电挡板,所述温度检测机构上方设置有接收器,且温度检测机构下方内部并列等距设置有红外线温度检测器。
2021-11-26 134 6.8

本实用新型公开了一种变压器铁芯硅钢片的横剪打磨装置,包括出料平台、传送机构和打磨机构,所述出料平台的出料端设置有打磨机构,且两组所述打磨机构对称设置在硅钢片的上下两侧,两组所述打磨机构之间构成打磨通道,所述传送机构靠近于出料平台的出料端设置在出料平台上,且所述出料平台上的硅钢片通过传送机构依次朝向打磨通道内位移,通过两组对称设置的打磨机构对硅钢片的两侧面进行同时打磨,具有较高的打磨效率。
2021-12-21 192 6.8

采用SEM、EDS和XRD对不同加热温度下W470连铸坯氧化铁皮的微观形貌及相结构进行研究。结果表明,W470氧化铁皮难以除去的原因是氧化铁皮熔化,液相包裹着FeO,凝固时发生共晶反应,生成FeO/Fe2SiO4共晶混合物,并深嵌入基体。降低加热炉的加热温度,使连铸坯全程在FeO/Fe2SiO4共晶混合物熔点(1177℃)以下加热,可降低氧化铁皮与基体的结合力,能够有效解决W470除鳞困难问题。 The microstructure and phase structure of iron scale of W470 continuous casting billet at different heating temperatures were investigated by SEM,EDS,and XRD.The results show that the reason why the iron scale of W470 removes hardly is that iron scale is melted and the FeO is surrounded by the liquid phase,which forms FeO / Fe2SiO4eutectic mixture and is embedded into the matrix after solidification.Lowering the heating temperature and keeping the continuous casting billet heating under the melt... 
2014-04-28 133 5.8

研究了罩式炉常化工艺对50W350硅钢热轧板组织、夹杂物和性能的影响。研究结果显示,罩式炉常化工艺在温度一定的情况下,随着保温时间延长,硅钢晶粒逐步再结晶并长大,同时析出物也在聚集长大。通过制定合理的罩式炉常化工艺,可以实现硅钢晶粒的再结晶和长大,从而达到连续退火炉常化工艺产品技术要求。 The influence of normalization process with a bell furnace on the structure,inclusions and properties of 50W350electrical steel hot-rolled sheet was studied.The research results showed that:when the steel was normalized at a certain temperature in the bell furnace,the silicon steel grains gradually recrystallized and grew up with the extension of the annealing holding time,and at the same time,the precipitates also gathered and grew up.The recrystallization and growth of the silicon steel grains... 
2022-02-28 179 5.8

取向硅钢因其高磁导率、低矫顽力和大电阻系数等特性,被广泛应用于大中型变压器和大型电动机铁芯的制造。因取向硅钢性能和成分控制严格,生产工艺复杂,故其产品代表了钢铁企业特殊钢生产的最高水平。本文介绍了新钢公司卷板厂1580热连轧线生产取向硅钢过程中出现的窄尺问题,研究了取向硅钢产品的特点,分析了热轧过程中的组织转变,并结合生产实际提出了改进措施。通过对加热炉钢坯加热模式、粗轧轧制策略、精轧轧制工艺、二级模型等方面的优化和改进,取向硅钢窄尺情况明显好转,提高了产品的成材率和市场口碑。 The oriented silicon steel is widely used in the iron core manufacture of large and mediumsized transformers and large motors because of its high permeability, low coercivity and large resistance coefficient. Due to the performance and composition control of oriented silicon steel is strict, the production process is complex,therefore, its products represent the highest level of special steel production in iron and steel enterprises. This paper introduces the problem of narrow gauge in the produ... 
2022-06-28 164 5.8

森吉米尔二十辊轧机是冷轧电工钢的主要机型,具有整体刚度大,辊径小,轧制道次压下量大,产品精度高等特点,简要介绍了近年来冷轧电工钢森吉米尔二十辊轧机领域进展,在轧机结构、厚度自动控制、板形自动控制等方面的技术及研究。 20-h Sendzmir reversible mill is the main type of cold rolled electrical steel which has the characteristic of high integral stiffness,small roller diameter,high pass reduction and high product quality.In this paper,the recent progress of frame structure,automatic gauge control,automatic flatness control of Sendzmir mill is introduced. 
2023-05-06 196 5.8

【作者】 吴玉美; 陆晔; ...
2023-05-09 172 5.8

本发明公开了一种宽频率低铁损变频电机用无取向电工钢及制造方法,属于无取向电工钢领域。针对现有无取向钢在较宽频率范围内电磁性较差的问题,本发明提供一种宽频率低铁损变频电机用无取向电工钢,包括如下重量百分比的各组分:Si:2.80%~3.50%;Als:0.20%~0.60%;Mn:0.20%~0.60%;P:0.01%~0.20%;C:≤0.005%;S:≤0.02%;N:≤0.02%;Ti:≤0.005%;其余为铁和不可避免的杂质;其中C、S、N和Ti的重量百分比满足下式:C%+S%+N%+Ti%≤0.009%。通过控制合金元素的含量达到电工钢电阻率增加、磁滞伸缩减小,涡流和磁滞损耗均降低的目的。通过本发明提供的制造方法在正火过程中选用低温工艺,改善随着合金元素量的增加金属强度增加、塑性降低、冷加工性能降低的问题,使其最终在较宽频率范围内电磁性能优异。
2021-03-29 129 6.8

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