硅钢资料

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... 

目的提高硅钢的磁性能。方法采用多弧离子镀技术,在普通取向硅钢薄板两面沉积高硅FeSi合金层制得高硅梯度硅钢,并进行热处理,观察其显微组织,测量磁性能。结果退火态高硅梯度硅钢表面的高硅FeSi合金层与基底结合紧密,均匀致密。高硅梯度硅钢中硅含量呈梯度分布,最表层硅质量分数为11.0%,随着深度增加,硅含量逐渐降低,在距表面20μm处硅质量分数仍能达到6.5%。沉积态高硅梯度硅钢的电阻率ρ、低频铁损P10/50、高频铁损P10/1k及磁感应强度B8分别为68.6μΩ·cm,0.82W/kg,83.3 W/kg和1.73 T,退火后分别为63.1μΩ·cm,0.44 W/kg,54.38 W/kg和1.89 T。结论由于表层高硅FeSi合金层的存在,梯度高硅钢的低频磁学性能良好,但高频损耗需进一步改善。 Objective To improve the magnetic properties of silicon steel. Methods FeSi alloy coatings with high-silicon content were deposited on the surface of common grain-oriented silicon steel by cathodic arc plasma evaporation,and then a kind of high silicon gradient steel was prepared. The morphologies,content and magnetic properties of the samples were tested. Results FeSi alloy coatings were featured with compact microstructures and excellent adhesive quality with the substrates. The silicon conten... 

本发明公开了一种适用于无取向硅钢极薄带表面涂覆的涂液，它由水溶性丙烯树脂、成膜助剂、耐盐雾助剂、流平剂、纳米氢氧化锆、消泡剂、水按质量比100:(2～8):(1～3):(1～5):(0～1):(0.1～0.5):(70～130)组成。将该涂液在无取向硅钢极薄带表面可表现出良好的涂覆性，经烘烤固化后形成的绝缘涂层表面透明光滑，附着性和绝缘性能优良，可有效提升无取向硅钢极薄带的综合性能，适合推广应用。

一种适合冷连轧的高效变频压缩机用无取向硅钢，其化学成分及wt%为：C：≤0.0025%、Si：2.4~2.8%、Mn：0.35~0.65%、Al：0.5~0.8%、S：≤0.0020%、N：≤0.0025%、P：≤0.03%、Sb或Sn：0.03~0.08%；生产方法：冶炼浇注；对铸坯加热；粗轧；精轧；卷取；常化；经酸洗后冷连轧；退火；涂敷及精整。本发明产品性能既保证产品磁性能又提高生产效率、提高成材率和降低生产成本的效果，五机架连轧机只需要一次轧过即可，且连轧机相比单机架轧机减少了来回轧制的带头带尾切废量，因而可提高成材率，生产效率和成材率提高，自然降低生产成本。

一种低温高磁感取向硅钢的热轧方法：经转炉冶炼并浇注成坯；对铸坯加热后进行粗轧：首先确定粗轧减宽量；根据所确定的粗轧减宽量进行粗轧；进行精轧；常规进行下工序。本发明采用低温板坯加热技术，降低了板坯烧损和修炉负担，且边裂发生率比现有技术的不低于18%的基础上能降低5%以上，由此节约资源及降低能耗。

介绍了国内、外电工钢极薄带的生产现状及市场应用的情况,以及典型生产企业的生产规模、产品性能和应用领域,指出扩大高牌号无取向电工钢生产、提高产品质量是目前电工钢发展的迫切要求。 The production situation and market application of ultra thin electrical steel strip at home and abroad were described.The production capability,product property and application area of typical corporation were introduced.The results indicate that the urgency needed of electrical steel development is expanding high-grade non-oriented electrical steel production and improving products quality at present. 

本发明公开了一种改善取向硅钢内外圈和边部表面质量的方法及环形炉，在一次冷轧工序中，采用错边卷曲，卷曲张力按渐变张力进行控制且头尾的卷曲张力大、中部的卷曲张力小，MgO的涂覆量与卷曲张力同步变化且头尾的涂覆量少、中部的涂覆量多；在高温退火工序中，环形炉的底板上增设一层由若干扇形块绕中心均布形成的垫层，相邻扇形块之间存在空隙，环形炉的内罩内钢卷的上端加盖通风式的盖板，盖板底面的内圈间隙伸入钢卷孔、外圈间隙套在钢卷上、中间通过绕中心均布的导流槽支撑在钢卷端面上，导流槽呈螺旋状且入口与盖板内圈上的开口一一对应连通、出口延伸至盖板底面外圈内侧。本发明可显著减少表面缺陷，明显改善表面质量和磁性，操作容易。

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... 

运用电子背散射衍射(EBSD)和X射线衍射(XRD)技术对硅钢热轧板的织构在板厚方向的分布进行了研究,并分析了两种织构测量方法的特点。EBSD技术能直观给出板厚方向的微观织构,XRD能得到钢板的宏观统计织构信息,结合两种技术的分析,能更直观更精确的研究不同织构在板厚方向的分布。 The texture distribution along the thickness of the silicon steel has been investigated by electron backscatter diffraction(EBSD) and X-ray diffraction(XRD) technique.The characteristics of two technique of texture analysis have been investigated.Combined the two techniques,the texture distribution along the thickness of the silicon steel could be realized distinctly and accurately. 

本发明公开了一种精确控制高磁感取向硅钢板坯Als含量的方法，转炉出钢20～40秒时，定量加入金属铝，加入量按0.15～0.35kg/吨钢；转炉出钢及合金加入后，底吹搅拌均匀3～5min后，加入一定量金属铝后再底吹搅拌均匀3～5min后将钢水吊运至RH开始精炼处理，铝加入量按[WAls目标+(0.009～0.0120％)]范围控制；钢水在RH精炼过程经过2～3次酸溶铝的成分微调后结束精炼，精炼结束Als按[WAls目标+(0.0030～0.0045％)]目标范围控制；RH精炼结束样酸溶铝检测结果出来后，在连铸开浇前，在钢包内补加铝线使钢液中Als在[WAls目标+Δ浇注Als损]目标范围内；连铸进行氩气环流保护浇注，其中氩气环流流量控制在6～12m3/h；浇注成合格板坯后按正常工艺进行热轧及后工序生产。

【作者】 谌剑； ...

在50Kg氧化镁坩埚真空感应炉上进行高硅电工钢的脱氧试验。结果表明,通过控制原料的成分、高真空下的碳氧反应和炉衬分解向钢液中的供氧,可使钢液的总氧含量≤15×10-6;在维持高温高真空条件下,当钢液中的反应达到一定程度后,延长精炼时间并不能降低钢液的总氧含量;完成精炼后加入硅钙合金沉淀脱氧可进一步降低钢液的总含氧量,但脱氧效果有限。 The test of high-silicon electric steel deoxidation has been carried out in 50Kg vacuum induction furnace with magnesium oxide crucible.Results show that the total oxygen could be ≤15×10-6in molten steel by controlling material components,carbon-oxygen reaction in high vacuum and oxygen contamination from crucible materials on molten steel;And when the reaction was carried through to a certain extent,total oxygen in molten steel could not be reduced by the extension of refining period in high va...