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研究了传统工艺流程生产的2%Si无取向电工钢在不同退火温度下的磁性能。研究结果表明,随着退火温度的升高,显微组织均匀性提高且晶粒尺寸增大;有利织构组分{100}<0vw>、α、η增强,不利织构组分减弱;成品的铁损P1.5/50先下降后略有上升,磁感B50上升平缓;在890℃×2 min的退火工艺条件下,成品电工钢的磁性能最佳,对应的铁损P1.5/50小于3.2 W/kg,磁感B50高于1.74 T。 In this paper,the effect of annealing temperature on magnetic properties of non-oriented electrical steel with 2% silicon was studied.Results show that the uniformity of microstructure and the average grain size increase with the rise of annealing temperature.The texture components of annealing can be improved by enhancing {100} <0vw>,α,η fiber textures and weakening {111} <112> fiber texture.The tendency of core loss P1.5/50 shows that it decreases first and then increases,while the... 
2013-01-28 165 5.8

通过制备磷酸二氢铝硅钢涂层,研究了氧化锌对无铬涂层耐盐雾性能、电化学性能和附着性的影响。结果表明,硅钢表面涂层含有4.0%的氧化锌时,涂层具有最高的耐腐蚀性能和电化学性能,而且其致密表面最为平整,没有裂纹出现。 The effects of ZnO on the salt spray resistance property, electrochemical performance and adhesiveness of silicon steel insulating coating were studied. The results show that the best corrosion resistance and electrochemical properties can be obtained when the coating contains 4.0% oxide zinc, and the dense surface is smooth without cracks. 
2014-07-28 205 5.8

电工钢试样加工产生的剪切应力会恶化钢板的磁性,对不同牌号硅钢片的横向、纵向试样退火前后磁性能的变化进行研究,结果表明:无取向硅钢片在剪切过程中横向、纵向的磁性受到剪切应力影响是不一样的。 The electrical steel sample processing magnetic of electrical steel will worsen due to the shear stress of sample. In this paper,the magnetic change of transverse,longitudinal specimens of different type of silicon steel sheet before and after annealing are studied. The results show that the magnetic of non- oriented silicon steel sheet affected in the process of shear is not the same in horizontal and vertical direction. 
2013-05-28 189 5.8

本发明提供一种在同一卷材内得到稳定的磁特性的方向性电磁钢板的制造方法。上述方向性电磁钢板的制造方法,包括如下步骤:将具有规定的成分组成的钢坯热轧而制成热轧板,将上述热轧板退火而制成热轧板退火板,对上述热轧板退火板实施1次或隔着中间退火的2次以上的冷轧而制成最终板厚的冷轧板,对上述冷轧板实施一次再结晶退火和二次再结晶退火;上述冷轧包括至少1次的压下率为80%以上且轧制速度为设定值R0(mpm)期间的钢板温度T0(℃)与轧制速度为0.5×R0(mpm)以下期间的钢板温度T1(℃)满足式(1)的冷轧。
2021-06-28 202 6.8

本发明公开了一种取向硅钢微观织构EBSD试样制样方法,包括:1)取样,采用线切割机制取向硅钢试样;2)制样,采用热镶嵌机镶制取向硅钢试样,按照常规方法进行粗磨、细磨、抛光、清洗、吹干;采用240目、400目、600目氧、800目、1000、2000目氧化铝砂纸对试样依次进行一次打磨处理;采用5.0um高效金刚石抛光剂对试样进行抛光处理;3)电解抛光,取向硅钢试样机械抛光后再进行电解抛光。
2021-02-04 177 6.8

本发明涉及硅钢卷取领域,具体涉及提高硅钢收卷速度的卷取系统,包括机架、第一卷取辊、第二卷取辊、第三卷取辊和切捆机构,第一卷取辊、第二卷取辊和第三卷取辊依次转动设置于机架上;切捆机构包括切割刀、挤压板和成卷的胶带,切割刀竖直滑动设置于第一卷取辊和第二卷取辊的上方,切割刀上固定有两个支撑条,两个支撑条之间设置有支撑辊,成卷的胶带套设于支撑辊上,切割刀上还设有供胶带穿过的通槽;挤压板内设有装有墨水的盛墨腔,挤压板一侧的两端固定有排墨管,排墨管与盛墨腔连通,且排墨管与切割刀的侧壁转动连接。采用本技术方案时,有利于提高硅钢卷取效率。
2021-01-27 182 6.8

结合扫描电镜和大样电解研究了CSP流程W800牌号无取向电工钢表面线状缺陷中夹杂物成分及来源,采用SPSS软件回归分析了生产过程各因素对表面线状缺陷的影响。研究表明:稳态浇铸过程铸坯中大型夹杂物含量为5.39 mg/10 kg。引起无取向电工钢表面线状缺陷的大型夹杂物主要为脱氧产物、镁铝尖晶石和钢包顶渣,主要类型为Al2O3、MgO-Al2O3、CaO-Al2O3-MgO和CaO-Al2O3-SiO2。非稳态浇铸过程钢水洁净度明显降低,热轧板表面线状缺陷比例上升。影响表面线状缺陷的主要因素为RH出站时顶渣的w(CaO)/w(Al2O3)、RH脱氧结束氧位及中间包最低吨位。 Combining scanning electron microscopy and large sample electrolysis, the composition and source of inclusions in the surface linear defects of W800 grade non-oriented electrical steel in the CSP process were studied. SPSS software was used to regress and analyze the main factors which affected the surface linear defects in the steelmaking process. Research shows that the content of large inclusions in the steady state casting process is 5.39 mg/10 kg. The large inclusions which cause linear def... 
2022-02-28 226 5.8

本发明一种解决取向硅钢热轧板晶粒粗大的方法,在取向硅钢的成分设计中减少固溶温度较高的MnS的含量,降低铸坯加热温度,同时计算实际取向硅钢成分中γ‑相含量与温度之间的关系,依据计算结果设计取向硅钢的热轧工艺,可以保证20%~30%的γ‑相数量,成功解决取向硅钢热轧板晶粒粗大的问题。
2021-04-15 160 6.8

采用电解法和扫描电镜研究了300 t转炉-RH精炼钙处理对无取向硅钢板(%:≤0.005C、1.2~2.2Si、0.2~0.6Mn、≤0.20P、≤0.005S、0.2~0.6Al、0~0.01Ca)中夹杂物的影响。结果表明,钢中Al含量为0.25%和0.35%时,钢中溶解氧均小于1×10-4%,钙处理后都会产生CaS夹杂物,尤其是含0.35%Al的钢水;钙处理可以有效减少钢中的夹杂物数量,尤其是0.5μm以下的微细夹杂物数量;钙处理后夹杂物的种类以AlN、CaS为主,同时还含有少量的氧化物夹杂物以及AlN-CaS复合夹杂物,尺寸主要为1.5~5.0μm。 The effect of 300 t converter-RH refining calcium treatment on inclusions in non-oriented silicon steel sheet (%:≤0.005C,1.2~2.2Si,0.2~0.6Mn,≤0.20P,≤0.005S,0.2~0.6A1,0~0.01Ca) has been studied by electrolysis and scanning electron microscope.Results show that with 0.25%and 0.35%Al content in steel,all the dissolved oxygen in liquid is less than 1×10-4%,and the CaS inclusions are produced after calcium treatment,especial for the liquid containing 0.35%Al;the amount of inclusions in ste... 
2011-01-28 202 5.8

通过观察冲剪边缘组织,测量冲剪边缘的显微硬度、残余应力的分布情况和磁性能的变化研究了冲剪加工对无取向硅钢50WW800边缘组织和磁性能的影响。对冲剪后硅钢片进行750℃退火,分析退火对组织和磁性能的影响。结果表明,硅钢片剪切边缘会存在0.4 mm的形变硬化层,边缘应力大,铁损增加。退火后变形减小,形变硬化层变小,残余应力大幅度减少,铁损减少。 The influence of punching process on cutting edge microstructure and magnetic properties of non-oriented silicon steel 50WW800was studied by observing microstructure and measuring microhardness near cutting edge.The residual stress distribution in the silicon steel tooth and magnetic properties were measured.Effect of annealing at 750 ℃ on microstructure and magnetic properties of the silicon steel was analyzed.The results show that a cut-edge hardening layer up to 0.4 mm is observed,residual st... 
2023-04-28 238 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。
2021-06-17 174 6.8

一种无取向硅钢用轧制工作辊,属于轧机工作辊技术领域,该轧制工作辊,包括锥形曲面段和平直段,锥形曲面段包括弧形段Ⅰ和弧形段Ⅱ,弧形段Ⅰ的弧面内凹,弧形段Ⅱ的弧面外凸,弧形段Ⅱ和平直段与带钢接触,弧形段Ⅰ的一端水平向外延伸,弧形段Ⅰ的另一端与弧形段Ⅱ的一端相切,弧形段Ⅱ的另一端与平直段相切,本实用新型的有益效果是,该工作辊整体结构简单,轧制效率高,降低了辊耗,消除了工作辊边部的急剧弹性压扁、弹性变形,降低了轧制断带的风险,可有效控制钢带边部的边降和形状。
2021-05-07 161 6.8

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