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本发明公开了一种取向硅钢高温退火底板,涉及钢卷生产技术领域,解决了钢卷的尺寸变形导致钢卷切边量过大的技术问题。包括应变诱导板,应变诱导板的板面开设有若干凹槽,相邻凹槽之间于应变诱导板的板面形成凸楞,钢卷放置于应变诱导板的板面上,其中部分的钢卷端面支撑于凸楞上,其余的钢卷端面悬置于凹槽上。本发明通过在应变诱导板上设置凹槽与凸楞,钢卷在高温退火过程中同样受重力产生蠕变变形,但蠕变变形按照凸楞所设定的方向进行,从而将产生的不均匀的“大浪”分割成碎化均匀的“细浪”,使得钢卷边部的变形细小、均匀、可控,从而降低了大象脚变形的缺陷影响程度,减小了钢卷的切边量,提高了成材率,同时能够获得良好的边部板形。
2021-03-24 154 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... 
2014-03-28 143 5.8

将Fe-1.5Si硅钢试样分别在1 000~1 200℃空气条件下氧化30 min,观察发现在1 000℃和1 100℃时,氧化层与基体界面处存在硅酸亚铁,而当温度为1 200℃时,硅酸亚铁不但存在于界面处,同时也存在于氧化层中.将各温度下得到的带有氧化层的试样进行单道次热轧试验,压下率分别为10%和30%,发现1 000℃和1 100℃时,较高的压下率使氧化层破碎更加严重,但是单道次热轧未能改变氧化层的结构;当温度为1 200℃时,由于液态的硅酸亚铁的出现,单道次热轧能够将界面处的液化的硅酸亚铁层挤压到氧化层中,消除了硅酸亚铁层的钉扎基体的效应,改善了氧化层与基体界面的平直度. Specimens of Fe-1.5Si silicon steel were oxidized at 1 000 ~ 1 200 ℃ in air for 30 min.At 1 000 ℃ and 1 100 ℃ fayalite was observed at the scale/substrate interface.While at 1 200 ℃fayalite was found both at the scale/substrate interface and at the outer oxide layer.Then after the single-pass hot rolling process,with the compression ratio of 10% and 30%,it was found that at 1000 ℃ and 1 100 ℃,higher compression rate accelerated the broken of the scale layers,but the scale structure was not affec... 
2013-12-28 165 5.8

【作者】 刘玲月; 李军辉; ...
2011-02-28 151 5.8

目前随着电工钢用户冲压设备的升级,冲压速度逐步提高,对电工钢产品的硬度和强度指标提出了更高的要求。与普通硬度级别的无取向硅钢相比,高硬度50BW600的Hv硬度提高15~20,达到125以上,同时对电磁性能指标也有较高要求。本钢通过化学成份和热轧及冷轧连退生产工艺的设计,经过小批量生产试验,满足用户要求。通过对工艺的严格控制,在大批量生产过程中,保证了产品的力学性能和电磁性的检验合格率。 Currently with upgrading of stamping equipment of silicon steel user, gradually increasing of stamping speed, propose higher demand for hardness and strength of silicon steel. Compared with conventional 50BW600, high hardness 50BW600 have higher hardness, reach greater than 125Hv. Through design of chemical composition with hot mill and annealing, production test of small quantities, stamping performance meet user request. 
2014-02-28 156 5.8

本实用新型公开了一种硅钢底辊套管生产用防氧化处理装置,包括一种硅钢底辊套管生产用防氧化处理装置,包括底板和打磨箱,所述底板的顶面固定安装有打磨箱,且打磨箱的背立面焊接有安装架,且安装架的一侧表面固定安装有驱动电机,所述驱动电机的输出端通过联轴器贯穿打磨箱的表面并延伸至内部固定安装有转动轴,且转动轴的表面设有打磨辊。有益效果:通过设置吸尘管、吸尘孔、管道和吸尘器的相互配合使用,吸尘器的进气端能够将打磨过程中的灰尘通过管道从吸尘管表面的多个吸尘孔内吸出,防止灰尘四处飘散,降低灰尘对工作人员身体造成的伤害,同时减少灰尘对环境造成的污染,且减轻工作人员清理飘散后灰尘时的劳动量。
2021-10-13 155 6.8

本实用新型涉及一种取向硅钢高温退火设备,尤其涉及一种取向硅钢全氢式高温罩式炉外罩,从外至内包括圆柱形外壳和耐火保温层,所述耐火保温层内壁铺设有电阻带;所述圆柱形外壳上部设有外罩顶盖;所述耐火保温层由陶瓷纤维模块堆砌而成,所述电阻带通过钉子铺设在陶瓷纤维模块上;电阻带头一端通过接线棒引出炉壳外,另一端中性点在炉内短接。本实用新型保温层内层采用模块化的高纯度陶瓷纤维代替耐火砖,该材料具有重量轻、蓄热少,低导热性能带来高的节能效果,具有抵抗热冲击的能力,加上模块化的结构,安装快捷,衬体无需烘干和养护,所以安装好以后便可立即投入使用。
2021-12-18 161 6.8

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... 
2011-03-28 148 5.8

测试了高强无取向电工钢的S-N曲线,并借助光学显微镜、扫描电子显微镜、透射电子显微镜分析了实验钢组织,疲劳断口形貌和位错结构。结果表明:室温条件下,频率为20Hz,应力比R为0.1,循环10~7周次时,实验钢的疲劳强度为360MPa,疲劳裂纹萌生于实验钢的次表面,裂纹萌生点附近有沿晶开裂现象,疲劳裂纹扩展区域有解理台阶与疲劳条纹,瞬间断裂区是韧性断裂,有大量韧窝。实验钢在循环应力作用下基体中产生了大量位错,并有驻留滑移带终止在晶界位置。 The S-N curve of a high strength non-oriented electrical steel was tested.The microstructure and fatigue fracture morphology and dislocation were analyzed by optical microscope,scanning electron microscope,transmission electron microscope.The results showed that:at room temperature and the frequency of 20 Hz and the stress ratio Rof 0.1,the fatigue strength of the experimental steel was 360 MPa when the cycle was 10~7 cycles.The fatigue crack initiation at the surface of the steel and the interg... 
2022-01-28 160 5.8

为研究退火工艺对普通取向硅钢初次再结晶组织的影响,对经不同温度、保温时间和升温速率退火后的材料组织进行了分析。结果表明:在等温退火条件下,加热至600℃时开始发生初次再结晶,800℃以上初次再结晶组织发展完善;而在最终冷轧板直接进行最终高温退火的情况下,加热温度在500~700℃时,将升温速率提高到80℃/h,初次再结晶组织更易于发展完善。 To investigate the influence of annealing process on the recrystallization of common grain oriented silicon steel,microstructures of sheets annealed at different temperature,soaking time and heating rate are observed.Results show that under the condition of isothermal annealing,recrystallization begins at 600℃ and fully develops above 800℃,while in the case that the final cold rolled sheets are directly thrown to final high temperature annealing,recrystallization is likely to develop with the he... 
2014-04-28 165 5.8

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。
2021-08-09 125 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... 
2011-03-28 187 5.8

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