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在实验室试制了TSCR流程的低碳低硅无取向硅钢,研究了在850~1050℃不同温度常化对冷轧量0.5mm厚钢板再经950℃×7min退火后的组织、织构和磁性能的影响。结果表明:随常化温度的升高,使热轧板晶粒尺寸增大,晶界更清晰,组织均匀性更好;由于第二相AlN和MnS析出物尺寸比较大,使冷轧退火后钢板晶粒也随常化温度升高呈单调增大趋势;γ有利织构和{111}、{112}不利织构与常化温度升高同时增强,但前者增强更多;冷轧板退火后铁损随常化温度升高呈单调下降,磁感呈单调上升趋势。 The low-carbon and low-silicon non-oriented silicon steel was prepared by thin slab casting and rolling(TSCR) in lab.The effect of normalizing at different temperatures in 850-1 050℃on microstructure, texture and magnetic properties of 0.5 mm cold-rolled sheets after annealing at 950℃for 7 min was researched. The results show that with increasing the normalizing temperature,the grain size of hot-rolled sheets increased,the grain boundaries were more clear and the rnicrostructure uniformity was b... 
2011-03-28 146 5.8

本发明的一个实施方案提供一种取向电工钢板及其制造方法,以重量%计,所述取向电工钢板包含:Si:3.0‑4.5%、Mn:0.05‑0.2%、Al:0.015‑0.035%、C:0.0015%以下(0%除外)、N:0.0015%以下(0%除外)、S:0.0015%以下(0%除外)、余量的Fe及其它不可避免的杂质,并且满足以下关系式1和关系式2。[关系式1](W13/50/W17/50)≤0.57[关系式2](W15/50/W17/50)≤0.76(其中,所述关系式1中,Wx/y表示施加磁场的大小为x/10T且频率为yHz的条件下的铁损值)。
2020-12-15 174 6.8

本实用新型涉及一种具有在线测量功能的电工钢片横剪线,包括床身,床身上沿其长度方向安装有导轨,电工钢片在外部驱动辊带动下以导轨为导向移动;位于导轨一端端头外部的床身上安装有测量辊组件,位于导轨另一端处的床身上安装有影像测量组件;测量辊组件、导轨和影像测量组件的中心位于同一直线上,影像测量组件横跨设置于导轨上方;位于测量辊组件和影像测量组件之间的床身上依次安装有冲孔组件、V冲组件和斜剪组件;本实用新型通过测量辊组件对电工钢片行进长度进行检测,通过影像测量组件对电工钢片成型尺寸进行检测,从而便利于及时调整横剪线整体的运行状态,有效助力于保证合格率,并降低了人工负担。
2021-02-08 145 6.8

研究了常化温度、常化时间及常化后冷却速度对Si的质量分数为1.6%的无取向电工钢成品磁性能的影响。结果表明:在850~1 050℃范围内,随着常化温度的升高,成品铁损先减小后增大,成品磁感应强度先增大后减小;当常化温度为1 000℃时,成品平均铁损最低,平均磁感应强度最高;常化时间从3min延长到7min时,成品铁损先减小后增大,成品磁感应强度则呈单调下降趋势;随着常化冷却速度的降低,成品铁损先减小后增大,成品磁感应强度则呈单调增大趋势;对于Si的质量分数为1.6%的无取向电工钢,最佳的常化制度为:在1 000℃进行常化,时间5min,常化后空冷。对热轧板进行常化后,热轧板发生了不同程度的再结晶和晶粒长大。提高常化温度、延长常化时间、降低冷却速度,都能使常化板晶粒粗化,进而粗化成品板晶粒,改善磁性能。通过扫描电镜观察发现,成品板中析出物主要为AlN和MnS的复合析出物,以及少量的单独析出的AlN和MnS,而常化工艺主要是通过粗化析出相,减少细小析出相数量,从而减少对晶界钉扎作用来改善成品磁性能。 The effects of normalizing temperature,normalizing time and cooling rate after normalizing on magnetic properties of non-oriented electrical steel with mass fraction of Si of 1.6% were investigated.The results show that core loss of product decreases first and then increases,while magnetic induction increases first and then decreases with the increase of normalizing temperature from 850 to 1 050℃.Average core loss of product is the lowest and average magnetic induction is the highest when normal... 
2014-09-28 171 5.8

对冷轧无取向硅钢在冶炼过程中各个工序的顶渣进行了检测,分析了顶渣变化原因,并得出结论:硅钢生产宜采用复吹转炉,以降低吹炼终点渣中TFe含量,进而减轻对精炼的压力;使用低S、低Al2O3含量中间包覆盖剂;RH脱氧及合金化顺序采用先加硅铁后加铝;首罐宜经LF提温并降低渣中TFe。 The top-surface slag used for the various production processes in smelting coldrolled non-oriented electrical steel is tested and based on tested results the cause of the top surface slag change is analyzed.So it is concluded that the combined blown converter is more suitable to be used for smelting electrical steel in order to reduce the content of TFe in slag at blow end point and then much better results can be achieved during the period of refining.Secondly the tundish flux contenting low co... 
2013-03-28 142 5.8

本发明涉及无取向硅钢技术领域,具体提供了一种无取向硅钢的制备方法,对再结晶率为70‑90%、平均晶粒尺寸为10‑15μm、硬度HV为140‑170的硅钢半成品在温度为T=(772~777)+2900×W(Si)的条件下进行去应力退火,制得无取向硅钢,晶粒在去应力退火过程中均匀长大,平均晶粒尺寸80μm以上,有效降低铁损,使磁性能大幅度提高,铁损P1.5/50≤3.5W/kg,磁感B5000≥1.72T,电磁性能优异,满足客户使用要求,此外,本发明采用的硬度HV为140‑170的硅钢半成品在冲压过程中不易变形,机械加工性能优良。
2021-10-08 184 6.8

本实用新型公开了一种硅钢卷放卷辅助装置,包括支撑板、摆臂、气缸和连动杆,所述摆臂一端通过第一转轴枢接在支撑板上,所述连动杆的一端通过第二转轴枢接在摆臂的中部,另一端通过转轴与气缸的输出端连接,所述气缸的缸筒固定在支撑板上,所述摆臂远离支撑板的一端设置有承载座,所述承载座上开设有弧形槽口,所述槽口处设置有滚动组件;所述滚动组件包括设置在承载座上的第一支撑架和可转动设置在第一支撑架上的滚柱。其可有效防止硅钢卷从辊筒上掉落,保证了生产的安全性。
2021-12-20 156 6.8

本发明公开了一种高硅钢的冷轧生产工艺。该生产工艺属于机械制造技术领域,其中的处理工序的加热工序通过电磁感应加热装置加热,待处理钢经过加热工序的速度为30‑200mpm,加热工序的加热温度为70‑120℃。本发明具有生产效率高和生产质量高的特点,特别是在加热工序中对待处理钢采用电磁感应加热装置进行加热,使其可以快速有效地提升温度,以满足高硅钢的冷轧生产工艺要求,减少断带事故,具有很好的实用性和创新性。
2021-09-26 146 6.8

文章以国内某公司硅钢厂连续退火机组1号辐射管加热段为研究对象,分析炉内传热机理,建立并开发了辐射管加热段的传热模型。采用生产实际数据对模型进行了验证,以总燃料消耗量最小为目标,得出该炉段长度方向上燃料的最佳分配机制。所得结论为该公司连续退火机组节能控制提供理论依据。 Taking the radiant tube heating section of No.1 continuous annealing unit in a silicon steel plant of a domestic company as the research object, the heat transfer mechanism in the furnace is analyzed, and the heat transfer model of the radiant tube heating section is established and developed. The model is verified by the actual production data. Aiming at the minimum total fuel consumption, the optimal fuel distribution mechanism in the length direction of the furnace section is obtained. The co... 
2022-01-28 131 5.8

研究了锰含量对w(Si)=1.8%Si无取向电工钢组织和性能的影响。结果表明,钢中锰含量从0.3%增加到1.2%时,由于α_γ相变的产生,铸坯低倍组织、热轧板金相组织及成品织构等均发生了不同程度的变化,对成品表面质量及磁性能产生了明显的影响。 The effects of manganese content on structure and properties of w(Si)=1.8% non-oriented electrical steels have been studied.Results show that with increasing manganese content to 1.2% from 0.3%,macrostructure of continuous casting slab,hot rolled band metallurgical structure and finished product texture vary in some extent because of the occurrence of α-γ phase transformation,the surface quality and magnetic properties of finished product are affected greatly. 
2011-03-28 149 5.8

本发明公开了一种物理喷砂方式制备取向硅钢薄带无底层原料的方法,步骤包括:S1、坯料预处理;S2、涂覆隔离剂,后进行高温退火;S3、拉伸热平整;S4、表面喷砂处理,去除底层;S5、去应力退火;本发明优点在于,采用喷砂的物理办法制备取向硅钢薄带无底层原料,代替了传统的用酸去除取向硅钢涂层或硅酸镁底层,结合退火去应力,显著改善了加工质量,使整个加工过程更加环保,也有利于控制成本。
2021-05-07 130 6.8

简述了无取向硅钢环保涂层发展背景,分析了硅钢环保涂层的特点及国内、外研究进展,提出了硅钢保涂层下一步的发展方向。 The back ground of environmental protection coating of non-oriented silicon steel was described in this paper.The characteristics and study progress in domestic and foreign of environmental protection coating of non-oriented silicon steel were analysised.The next development direction of environmental protection coating of non-oriented silicon steel was put forward. 
2013-04-28 146 5.8

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