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采用非水溶液电解方法来提取无取向硅钢中夹杂物。通过扫描电镜(SEM)观察结果表明:无取向硅钢中主要夹杂物为六棱柱的AlN、不规则硅酸盐及球状的铁的硫化物和氧化物,其中AlN夹杂尺寸在1~5μm,数量较多,还有部分AlN的复合夹杂。进一步研究了AlN复合夹杂形成机理,采用了Thermo-Calc热力学计算软件计算出该钢样中AlN、MnS析出温度分别为1 240℃、1 200℃,而Al2O3析出温度大于1 800℃,从而为AlN复合夹杂形成机理提供了一个理论依据。 Extracting inclusions from non-oriented silicon steel in non-aqueous electrolysis is a nondestructive method to gain inclusions.Scanning electron microscopy shows that the main inclusions in non-oriented silicon steel were hexagonal AlN,which was of large quantity,irregular silicate,spherical iron sulfide and oxide.The size of AlN inclusions ranged from 1to 5μm,and there were some duplex inclusions of AlN.To further study the formation mechanism of AlN duplex inclusions,Thermo-Calc thermodynamic... 
2014-01-28 112 5.8

双辊连铸技术是冶金及材料领域内的一项前沿技术,对于生产高品质硅钢具有独特优势.本实验研究了一种双辊铸轧w[Si]=4.5%的无取向硅钢,考察其铸态和常化处理后样品的组织、织构及析出相尺寸特征.结果表明:铸带组织以与铸带法向成5~20(°)倾角的柱状晶为主,晶内存在少量0.3~0.4μm的AlN析出相,铸带织构以λ(<001>//ND)织构为主,表层织构漫散.950℃/10 min常化处理后,析出相尺寸增大,表层λ织构增强. As an advanced technique of metallurgy and material science,twin- roll strip casting has unique advantages for producing high quality silicon steel. The present study was aimed at a 4. 5% Si non- oriented electrical steel for analyzing the structure,texture and the size of precipitates at the initial and normalized state. The results revealed that the initial structure mainly consisted of columnar grains with 5 ~ 20( °) angle to the normal of cast strip,and some AlN precipitates of 0. 3 ~ 0. 4 μ... 
2014-03-28 107 5.8

本实用新型公开了一种用于硅钢片自动排列叠片装置,包括:第一壳体,所述第一壳体的一侧开设有第一条形孔,所述第一壳体的内侧顶部安装有两个气缸,所述第一壳体内部位于气缸下方设有第一固定板,两个所述气缸的活塞杆均与第一固定板固定连接,所述第一壳体的内侧底部焊接有两个弹簧,所述弹簧的顶部焊接有第二固定板,所述第一壳体的内侧底部安装有第一触碰开关,所述第二固定板底部靠近第一触碰开关的一侧焊接有第一固定块;本实用新型在使用时,通过设置气缸推动第一固定板带动硅钢片运动,使硅钢片移动至第二固定板上,完成对硅钢片的自动叠片工作,无需人工手动对硅钢片进行叠片,提高硅钢片的叠片效率并减少人工劳动负担。
2021-03-10 90 6.8

概述了高磁感取向硅钢生产工艺的研究现状及发展趋势。介绍了国内外薄板坯连铸连轧流程生产高磁感取向硅钢的研究现状。从流程工序特点、热履历、组织与抑制剂控制方面进行对比,分析了薄板坯连铸连轧流程相对传统板坯流程生产高磁感取向硅钢的技术优势,在此基础上提出了利用该流程生产高磁感取向硅钢需要解决的主要技术难点。 The current status and development trend of production process for high magnetic induction grain-oriented silicon steel are summarized.The research status of producing high magnetic induction grain-oriented silicon steel by thin slab casting and rolling process at home and abroad is introduced.The potential technical advantages of producing high magnetic induction grain-oriented silicon steel by thin slab casting and rolling process are obtained by analyzing in terms of process characteristics,t... 
2013-07-28 110 5.8

本实用新型公开了一种变压器铁芯硅钢片叠装平台,包括支撑架、升降装置、铁芯架和硅钢片支撑板;铁芯架为硅钢片叠放形成铁芯的作业架,硅钢片支撑板用于储放构成铁芯的硅钢片,铁芯架及硅钢片支撑板均通过升降装置活动设置于支撑架上,且在叠装作业过程中,铁芯架与硅钢片支撑板通过升降装置驱动同时升降。本实用新型提供的一种变压器铁芯硅钢片叠装平台,提高铁芯叠装作业的便捷性,降低劳动强度,提高效率。
2021-12-22 144 6.8

本实用新型公开了一种变压器铁芯用硅钢片卷放料装置,其包括底座、换位旋转机构,换位旋转机构包括设置于底座上端的旋转座、换位旋转驱动组件、至少两个以上的放卷工位,换位旋转驱动组件用于驱动旋转座相对于底座绕设置的换位旋转轴线旋转,至少两个以上放卷工位以换位旋转轴线为圆心呈环形间隔设置于旋转座,放卷工位包括有可转动安装于旋转座上的放卷筒。当其中一个放卷筒进行放卷送料时,另外的放卷筒进行上卷,当该放卷筒放卷完后,换位旋转驱动组件驱动旋转座转动,使得另外的装有硅钢片卷的放卷筒转动至放卷送料的位置,而该放卷筒就可进行上卷,如此循环操作,实现了放料装置对硅钢片卷的同步放卷放料和上卷,提高生产的效率。
2021-04-26 102 6.8

采用固溶强化、细晶强化和位错强化方法,模拟TSCR流程试开发高强度无取向电工钢,试开发钢的主要合金成分为3%Si、0.83%Al和2.99%Mn。分析热轧、常化、退火后的钢板组织,并针对不同的成品板组织,详尽地分析了相应的力学性能和磁性能。试验电工钢平均晶粒直径为12.37μm时,R p0.2为530 MPa,R m为618 MPa;当退火制度为700℃×4 min,成品组织完全为未再结晶的回复组织时,R p0.2为853.5 MPa,R m为895.5 MPa。该成分的电工钢P15/50或P10/400最小时,对应的平均晶粒直径都大于59.67μm;P10/800或P10/1000最小时,对应的平均晶粒直径都处于12.37~59.67μm尺寸区间。 TSCR was simulated to develop high-strength non-oriented electrical steel with 3% of Si,0.83% of Al and 2.99% of Mn by solution strengthening,grain refinement strengthening and dislocation strengthening.The microstructures of hot rolled plates,normalized plates and annealed plates were analyzed.Furthermore,the mechanical properties and magnetic properties of products with different microstructures were detailedly studied.As the average grain diameter of the steel was 12.37 μm,the yield strength ... 
2013-04-28 120 5.8

无取向硅钢中夹杂物的存在会抑止晶粒生长,使基体的均匀连续性中断,其在钢中的形态、含量及分布情况都不同程度影响着硅钢的性能,尤其是对磁性能起关键的作用。因此,全尺度分布考察夹杂物对无取向硅钢夹杂物的研究极为重要。本实验确定了适用于不同牌号无取向硅钢夹杂物全尺度分布的分析方法:样品制备—小样电解—过滤喷金—根据不同牌号的要求选择合适的放大倍率扫描观测—夹杂物颗粒的分类统计。通过统计的结果,结合电解的失重量可以得到不同尺度的体积分布数据。实验分析了不同牌号和工艺无取向硅钢夹杂物的种类、形貌、大小和尺度分布,并初步考查了夹杂物与磁性能的关系,对无取向硅钢的工艺研究具有一定参考价值。 Inclusions in non-oriented silica steel could inhibit the growth of grain and cause discontinuity of micro-structure.The configuration,content and size distribution of inclusion have different effects on the performance of silica steel,especially significant on the magnetic property.Therefore,it is very useful to completely characterize inclusions with full size distribution in silica steel.In our research,full size analysis method for inclusion in silica steel had been established as follows: s... 
2012-10-28 106 5.8

从影响高牌号无取向硅钢退火工艺的主要参数入手,介绍高牌号无取向硅钢退火炉在加热、气氛控制、冷却、涂层烘烤方面的新技术,并展望无取向硅钢退火炉的发展方向。 Based on the technology parameters of high-grade non-oriented silicon steel annealing,the new technology of the annealing line,which includes heating,atmosphere control,cooling,coating baking,is introduced,and the development direction of non-oriented silicon steel annealing furnace is pointed out. 
2013-02-28 124 5.8

通过热力学计算,分析了实验钢中主要析出物析出的可能性。结果表明:在液相和固液两相区中,AlN和MnS均不能析出;在奥氏体区,AlN和MnS具备热力学析出条件,平衡析出温度分别为1547、1582 K。成品退火板中的析出物主要为AlN和MnS。扫描电镜下观察到的AlN形貌多为长条状,MnS形貌多为棒状或近似球形。这两种析出物占了析出物总量的85%以上,尺寸集中分布在400~800nm;复合析出物主要是(Al2O3+MnS)和(AlN+MnS),形貌不规则,尺寸集中在0.7~1.5μm;透射电镜下观察到了少量100nm以下独立的AlN析出。 According to thermodynamic calculation, the precipitation probability of precipitates was analyzed, AlN and MnS can not precipitate in liquid phase area and solid-liquid two-phase area. In austenite area, both the AlN and MnS have precipitation condition in thermodynamics and precipitates at 1547 K and 1582 K, respectively. The precipitates in annealing plate are mainly AlN and MnS. The shape of AlN is mostly strip, and MnS is stick or near sphericity. They accounted for over 85% of the total qu... 
2023-05-09 175 5.8

本发明提出了一种可修饰取向硅钢表面的无铬无机绝缘涂料及其制备方法,该涂料按照重量份计包括以下组份:磷‑硅溶胶40‑70份、钛改性增稠剂预溶胶25份、抑泡剂0.2‑1份、流平剂0.05‑0.2份和去离子水3.8‑34.75份。该涂料的制备方法为:先制备磷‑硅溶胶和钛改性增稠剂预溶胶;然后向磷‑硅溶胶中加入抑泡剂并搅拌均匀;再加入去离子水并搅拌均匀;再分次缓慢加入钛改性增稠剂预溶胶并搅拌均匀;最后加入流平剂并搅拌均匀。本发明所制备的无铬无机绝缘涂料可修饰取向硅钢表面瑕疵露晶等形貌缺陷;在取向硅钢表面形成的绝缘涂层具有良好的附着力和耐热性;涂料采用的原料均为无污染的环保材料,解决了含铬绝缘涂料带来的环境危害。
2021-05-21 138 6.8

对取向硅钢在不同气氛下的高温退火工艺进行实验室模拟,利用X射线衍射仪(XRD)分析了硅钢退火至900℃和1170℃时的样品表面氧化层和底层的物相组成,采用场发射扫描电镜(SEM)观察了样品表面氧化层和底层在截面方向上的微观形貌特征,并计算了高温退火一次升温阶段氧化反应的吉布斯自由能以及900℃时退火气氛的氧分压。结果表明:当退火气氛的露点温度保持一定时,较高的氢气含量有利于生成完整连续的底层;当退火气氛的水氢分压比保持一定时,在露点温度与氢气含量两者较低的条件下,底层附着性不佳易脱落,较高条件下,底层中夹杂着较多的铁单质;当氧化层中无FeO时,底层完整连续但易脱落,当FeO层较薄时,底层下方存在部分未反应的SiO2,当FeO层较厚时,底层不完整连续且有分层。 The high temperature annealing process of grain-oriented silicon steel in different atmospheres was simulated in the laboratory. X-ray diffractometer(XRD) was used to analyze the phase compositions of the surface oxide layer and forsterite film of the silicon steel annealed to 900 ℃ and 1170 ℃. Field-emission scanning electron microscopy(SEM) was used to observe the micro morphology characteristics of the surface oxide layer and forsterite film of the samples in the cross section direction. The ... 
2022-12-28 155 5.8

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