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通过对激光粒度分析仪测量硅钢级氧化镁(MgO)的分析条件进行优化,如分散介质、分散方式、样品预处理、仪器暗淡度等,探讨了硅钢级MgO粒度范围测量重现性较好的试验方法,满足硅钢生产过程控制对MgO粒度的要求。 The analysis condition of the laser particle size analyzer on grain oriented silicon-steel grade magnesium oxide is optimized,including the dispersion medium,dispersion methods,sample preparation,and instrument obscuration,etc.Therefore,particle size measurement with good reproducibility for silicon-steel magnesium oxide is discussed,which may meet the requirement of MgO particle size for silicon-steel process control. 
2011-02-28 174 5.8

【作者】 姚昌国; ...
2011-05-28 139 5.8

本发明公开了一种提高薄板坯连铸生产高铝无取向硅钢可浇性的方法,在保证生产顺行、质量稳定的基础上,能使高铝无取向硅钢连浇炉数由10炉提高至16炉,在提高小时产量、降低生产成本方面效果显著。
2021-03-25 146 6.8

电工钢反复弯曲次数是电工钢性能检验的重要指标之一,直接影响到用户在使用电工钢过程的机加工性能。主要分析了试样宽度、试样张力、晶粒取向、反复弯曲设备等因素对电工钢反复弯曲试验的影响,并对各个因素的影响程度进行量化以及原因探讨,从而归纳形成各影响因素的基本规律,以便为电工钢实际生产、用户使用提供科学指导。结果表明:试样宽度增加,反复弯曲次数也会不断增加,晶粒位向对取向电工钢的反复弯曲次数影响较大,当支座顶部到拨杆底部的距离减小或拉紧力增加时,反复弯曲次数会不断减小,但当拉紧力达到60N以上时,对反复弯曲次数影响不大,试样经退火后,反复弯曲次数略有上升。 The reverse bend number is an important performance of electrical steels′capabilities,affecting the machining performance directly when the customers used.It investigated some factors,such as sample′s width,sample′s tension load,grain orientation and equipment,how to effect the reverse bend test for electrical steel,measured the influence degree,and discussed the reason,in order to form basic rules which could be guided the manufacturing and using for electrical steel.Results showed that the rev... 
2014-07-28 150 5.8

本发明涉及取向硅钢制造技术领域,公开了一种快速判断取向硅钢初次再结晶晶粒直径的方法,包括如下步骤:选取取向硅钢热轧来料,进行生产,对产出的钢板在同部位各取若干个拉伸试样,加工拉伸和分析,取得屈服强度,在拉伸试样部位两侧连续制取金相试样,计算对应拉伸试样的平均晶粒直径D,将性能数据和平均晶粒直径进行统计分析,建立屈服强度与晶粒直径的对应关系,实际生产时,在产出的钢板上取判断试样,取得判断试样的屈服强度,进而取得判断试样的晶粒直径。本发明快速判断取向硅钢初次再结晶晶粒直径的方法,通过机械性能检验,来间接指示初次晶粒的大小,检测速度快,评价更准确。
2021-02-26 153 6.8

一种提高有效氮和底层质量的高磁感取向硅钢制造方法:冶炼后连铸成坯;对铸坯加热;热轧、常化及酸洗后时效冷轧;在湿式气氛下脱碳退火;在湿式混合气氛下均热;在湿式混合气氛下渗氮退火;进行后工序。本发明与现有技术相比,通过合理控制渗氮过程,提高渗氮后钢板基体内氮含量与总氮量之间的比例达到80%以上,使无点状露晶产生,最终获得产品的底层质量优异。
2021-01-29 133 6.8

介绍了国内无底层取向电工钢生产技术水平、产量和用途,简述了无底层取向电工钢作为取向电工钢超/极薄带母料及应用于制作大型发电机组铁心、风电等电机铁心和变压器铁心等的情况。 The production technology level,output and application of domestic glassless grainoriented electrical steel were introduced,and the application of glassless grain-oriented electrical steel as parent material of ultra-thin strip of grain-oriented electrical steel and in making large-scale electric generator cores,wind power motor cores and transformer cores were briefly described. 
2022-02-28 175 5.8

【机构】 武汉钢铁学院轧钢七二级电工钢结业小组; ...
2023-05-12 239 5.8

分析了电感耦合等离子体发射光谱法(ICP-AES)测定硅钢中铌的检测过程,讨论了该检测过程中不确定度的主要来源,建立了该方法的定量的数学模型,并根据这一模型计算出了检测结果的合成标准不确定度和扩展不确定度。 The measurement of niobium content in silicon steel by inductively coupled plasma atomic emission spectrometry(ICP-AES) was analyzed,by which the main factors affecting the uncertainty of the measurement were ascertained and the calculation formula was given.Finally,according to the formula the combined uncertainty and expanded uncertainty were obtained. 
2023-05-12 1.3k 5.8

本发明涉及无取向硅钢生产技术领域,公开了一种改善含Cu高强度无取向硅钢冷轧质量的方法,包括如下步骤:A)含Cu高强度无取向硅钢热轧卷化学成分(wt,%):Si:2.0~3.5%,Als≤1.5%,Cu:1~3%,其他为Fe,Als,Mn以及不可避免的杂质元素,对热轧卷进行常化酸洗处理,常化温度T常满足:T常≤1620‑(0.5Als+1.5Si+Cu)%×104,单位℃;B)将常化后的热轧卷在电磁感应加热炉内进行加热;C)在冷轧机组开卷机进行开卷,冷轧第一道次开卷温度T冷轧满足:1.5×(Si+Cu)%×103‑T室温≤T冷轧≤40+2×(Si+Cu)%×103,单位℃,式中,T室温为室温;D)按照4‑6道次冷轧到目标厚度。本发明改善含Cu高强度无取向硅钢冷轧质量的方法,在采用传统常化工艺路线,保证较高的强度和磁性水平前提下,改善冷轧质量,提高成品成材率。
2021-03-31 146 6.8

研究了应用电感耦合等离子体质谱法(ICP-MS)测定硅钢中痕量铜和镍的分析方法。采用硝酸分解样品,通过内标校正和基体匹配消除了基体干扰的影响,同时根据测量时存在的质谱干扰情况,选择同位素65Cu和60Ni作为测定元素和通过调节仪器参数使双电荷离子的产率最低,以减少带来的干扰。该方法用于硅钢中痕量铜和镍的测定,所得的结果与ICP-AES法测定结果完全吻合,各元素测定结果的RSD值小于5%,加标回收率为97.3%~100.3%。 A method for the determination trace copper and nickel in silicon steel by inductively coupled plasma mass spectrometry(ICP-MS) was studied.The samples were dissolved in HNO3.The effect of matrix interference was eliminated by internal standard correction and matrix matching.Meanwhile,according to the mass spectral interferences in determination,the isotopes including 65Cu and 60Ni were used as measuring elements.The yield of double-charge ions were minimized by adjusting instrumental parameters... 
2011-05-28 156 5.8

本发明公开了一种消除取向硅钢单边浪缺陷的方法,其包括如下步骤:1)、制作专用盖板;所述专用盖板包括环形板,所述环形板外边缘设有多个剪开处;2)、将待装炉的取向硅钢钢卷吊运至高温退火炉炉台;3)、将专用盖板铺于取向硅钢钢卷上端面外圈;4)、将专用盖板上的各剪开处向下弯折,勾住取向硅钢钢卷外沿;5)、扣上内罩,内罩底边砂封;6)、钢卷进炉,完成高温退火过程。本发明能有效保护钢卷边部,防止钢卷上端面翻边;该方法还能将钢卷内部水分排出,避免钢带表面氧化。
2021-01-05 127 6.8

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