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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... 
2014-04-28 197 5.8

对高牌号无取向电工钢35W300的成品进行了第二次退火,对第二次退火后的成品性能、纵横向磁性能差异和组织变化进行了分析。结果表明,随着第二次退火温度的升高,晶粒长大,磁性能优化。铁损平均值下降0.087 5W/kg,磁感平均值升高0.008T。第二次退火温度为820℃的产品的磁性能能够满足用户使用要求。 The product of high grade non-oriented electrical steel 35W300 was annealed at the second time.Microstructure,the difference of magnetic properties in the vertical and horizontal and were studied.The results show that the grain grew up and magnetic properties optimized with the increase of annealing temperature for the second time.Iron loss average declines in 0.0875 W/kg,magnetic induction average increases 0.008 T.The magnetic properties can meet the requirements of users at the second anneali... 
2013-04-28 197 5.8

两炉次无取向硅钢XG800WR(/%:0.003~0.004C、0.71~0.75Si、0.32~0.33Mn、0.004~0.007S、0.016P)的炼钢流程为铁水预处理(KR)-210 t顶底复吹转炉-钢包吹氩-RH脱碳精炼-230mm×1220 mm板坯连铸。53 t中间包钢水过热度为25~30℃,钢包到中间包采用长水口全程吹氩保护浇铸,中间包至结晶器采用浸入式水口浇铸。结果表明,在RH、中间包、结晶器过程中钢中总氧以及夹杂物数量和尺寸均明显降低;但在钢包到中间包过程T[O]、[N]和钢中夹杂物数量增加,说明长水口浇铸过程存在二次氧化。连铸坯中T[O]、[N]平均他分别为11×10-6和30×10-6,显微夹杂物数量平均为4个/mm2。铸坯中的显微夹杂物主要为3~5μm的AlN,同时存在少量的MnS、Al2O3·AlN和Al2O3·MgO·MnS。 The steelmaking flow sheet for two heats non-oriented silicon steel XG800WR(/%:0.003~0.004C. 0.71~0.75Si,0.32~0.33Mn,0.004~0.007S,0.016P) is hot metal pretreatment(KR)-210 t top and bottom combined blown converter-ladle argon blowing-RH decarburization refining-230 mm×1 220 mm slab casting.The superheating extent of liquid in 53 t tundish is 25~30℃,whole casting is shielded by blowing argon with long nozzle from ladle to tundish and the submerged nozzle is adopted in casting from tundish to mold... 
2011-05-28 197 5.8

本发明涉及一种三相变压器铁芯硅钢片叠装设备,包括工作台、传输装置和移动装置,所述的工作台的上端面由左至右依次设置有传输装置和移动装置,所述的移动装置包括匚形板、一号矩形通槽、转动杆、圆头板、移动架、限位架、水平板、夹紧架和挤压架,本发明无需通过人工对变压器铁芯硅钢片进行单个叠装,避免了传统的人工叠装造成的操作繁琐和增大劳动力的问题,本发明能够对叠装之后的变压器铁芯硅钢片进行快速整理限位,从而保证了叠装之后的变压器铁芯硅钢片的整齐度,本发明能够对叠装之后的变压器铁芯硅钢片进行快速压紧,从而提高了压紧效果。
2021-12-06 197 6.8

一种无取向性电磁钢板:以质量%计其母材的化学组成为:C:0.0010~0.0040%、Si:4.0~5.0%、Mn:0.20%以下、Al:0.010%以上且不足0.050%、P:0.030%以下、S:0.0030%以下、N:0.0005~0.0030%、O:0.0100~0.0400%、Ca:不足0.0010%、Ti:不足0.0050%、Nb:不足0.0050%、Zr:不足0.0050%、V:不足0.0050%、Cu:不足0.20%、Ni:不足0.50%、Sn:0~0.05%、Sb:0~0.05%、剩余部分:Fe和杂质;从母材表面到深度方向10μm的位置为止以外的区域中的O含量不足0.0050%。
2021-04-16 197 6.8

本发明公开了一种显示取向硅钢高温退火试样显微组织的方法,其主要流程为:取样→制样→腐蚀→金相观察;本发明提供的方法显示的试样晶界清晰完整,达到人工和金相分析软件的评级要求,对于精确测量取向硅钢显微组织和磁性能分析提供了更加可靠的条件。
2021-07-06 197 6.8

本发明提供了一种无取向电工钢,包括:C0.001~0.010%,Si0.5~4.0%,Mn0.05~0.8%,Al0.2~1.5%,P≤0.002%,S≤0.0015%,O≤0.002%,N≤0.0015%,各成分均为质量百分比;还提供一种无取向电工钢制造方法,包括:冶炼钢水、薄带连铸、常化酸洗、冷轧以及退火涂层。本发明中,在冶炼钢水时,控制钢水中C、Si、Mn、Al、P、S、O以及N几种成分的含量,且通过常化工艺,可以有效控制无取向电工钢成品的产品质量,具有较低的铁损以及较高的电磁性能,另外整体制造流程比较短,能够达到节能环保的目的,而通过冷连扎,有利于提高产品的质量、成材率和生产效率。
2021-08-31 197 6.8

本实用新型公开了一种冲制电机硅钢片用高速冲床的润滑油温控调节装置,包括换热机体、呈上下布置在换热机体内的冷冻水出水汇总管与冷冻水进水分配管以及冷冻水热交换换热管,冷冻水进水分配管、冷冻水热交换换热管和冷冻水出水汇总管依次连接,冷冻水进口外接冷冻水流量调节阀,冷冻水出口流出的冷冻水回流至冷却水池;换热机体顶部的一侧、另一侧分别开有进油口、出油口,进油口设油温检测盲管,油温检测盲管内设感温探头,感温探头与冷冻水流量调节阀信号连接。采用冷冻水换热冷却高温润滑油,带走油液热量,通过对冷冻水的流量控制调节,冷却后的油液温度恒定,以满足冲床润滑、冷却需要,以及减少冲床的换油周期。
2021-07-24 197 6.8

介绍了EB5325涂层液的主要性能和中冶新材生产冷轧无取向电工钢所用的涂层设备,通过多次试验摸索出使用EB5325涂层液的工艺,对涂层出现的缺陷进行分析研究,并提出解决方法,使中冶新材生产的冷轧无取向电工钢的涂层质量满足了用户的要求。 This article introduces the main properties of EB5325 and the coating equipments for cold-rolled non-oriented electrical steel. A process using EB5325 coating liquid is made through many time experiments and exploration. The appeared defects in the coating are studied and analyzed,and the solutions are proposed. The coating quality meets clients’ requirements of cold rolled non-oriented electrical steel. 
2014-01-28 197 5.8

借助电子背散射衍射(EBSD)及ZEISS-200MAT金相显微镜对某钢厂普通取向硅钢(CGO)进行研究,研究结果表明:热轧板组织、织构沿板厚方向存在明显的不均匀性,在热轧板表层及次表层发生再结晶,同时存在强度较高的Goss织构,中心层存在较强的{001}<110>变形织构。冷轧组织均呈纤维状条带组织,一次冷轧后,热轧板中的Goss织构消失,织构主要为α、γ织构,经中间脱碳退火后,α、γ织构强度减弱,并出现一定强度的Goss织构和利于Goss织构发展的{554}<225>、{332}<113>等织构,经二次冷轧后,二次冷轧织构类型与一次冷轧织构一致,但织构强度不同。 The grain-oriented silicon steel produced by a steel factory was investigated by EBSD and ZEISS-200 MAT metallographic microscope.The results show that the textures and microstructures along thickness of hot rolled slab are inhomogeneous.The surface layer and the layer near that are recrystallized structure which has a high Goss texture,but there is deformation texture{001}<110>in the central layer.The structure after cold rolling is a structure like fiber strip.After the first cold rollin... 
2014-11-28 197 5.8

利用电子背散射衍射(EBSD)技术和场发射电子扫描显微镜(FESEM)研究了电工钢中柱状晶不同初始取向50%热压缩变形后的演变规律及其对粒子析出行为的影响。结果表明:〈100〉晶粒形变后仍为〈100〉取向,只发生绕ND∥〈100〉方向的转动,具有遗传性,粒子析出数量少。柱状晶长轴与压缩轴的偏转度增加,取向的稳定性变差,超过40°,可形成〈111〉取向,期间发生复杂的滑移系交互作用,产生较高的缺陷密度,促进粒子析出。MnS粒子主要在晶内析出,变形温度高、形变量低,粒子均无法充分析出。回复时,形变晶粒内高的储能和缺陷密度是促进粒子进一步析出的必要条件。 The evolution of initial orientations and their influence on precipitation of columnar-grained electrical steel after 50% hot compression deformation were investigated by electron backscatter diffraction technique and field emission scanning electron microscopy.The results indicate that the〈100〉orientated columnar grains remain still〈100〉after hot compression deformation,with only rotation around ND parallel to〈100〉direction,with heredity,and less precipitation.As the deviation angle between the... 
2014-10-28 196 5.8

6.5%Si硅钢具有优异的磁学性能和广泛的应用前景。本文综述了6.5%Si硅钢的物理、机械及磁学特性,讨论了传统轧制、温轧、薄带连铸、快速凝固、CVD、粉末轧制等不同制备工艺的关键技术及特点,概括了6.5%Si硅钢在高效节能电机、汽车马达及磁屏蔽等领域中的主要应用,介绍了硅钢的制备技术取得的研究进展,并指出了其广阔的发展前景。 6.5% Si silicon steel has good magnetic properties and wide applications.In this paper physical and mechanical magnetic properties were summarized,and key technology and characteristic of several preparation methods,such as traditional rolling,warm rolling,thin strip continuous casting,rapid solidification,CVD and powder rolling,were discussed.Main applications of 6.5% Si steel in the fields of high-efficiency electrical motors,automobile motors,transformer cores and magnetic shielding were gene... 
2012-06-28 196 5.8

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