硅钢资料

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... 

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. 

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. 

【作者】 康凌晨； 王丽娜； ...

本文中简要介绍了武汉钢铁有限公司采用薄板坯连铸连轧CSP(compact strip production, CSP)工艺生产中低牌号无取向硅钢的实践情况.CSP工艺生产的硅钢具有成品磁性均匀、板形好的优势，但是在利用该技术生产中低牌号无取向硅钢时，常存在成品板表面瓦楞状缺陷严重、连铸生产效率低等问题.通过优化炼钢成分、热轧等相关工艺，可消除热轧板厚度方向中心的粗大形变组织，从源头上避免了粗大{100}<011>纤维组织的出现，消除了瓦楞状缺陷；通过提升冶炼效率和控制钢中夹杂物总量，可优化隧道炉的加热温度与在炉时间，大幅度提升了连铸生产效率，实现了中低牌号无取向硅钢的批量稳定制造，使CSP产线成为中低牌号无取向硅钢热轧板原料的主要供给生产线.如何进一步提升钢水纯洁度、提高连铸生产效率、降低生产成本，以及挖掘该产线生产薄带钢的技术优点，是未来工作的重点. This paper briefly introduces the practice of producing medium and low grade non oriented silicon steel(NGO) with CSP(compact strip production, CSP)technology in Wuhan Iron and Steel Co., Ltd.. This technology has the inherent advantages of uniform magnetic properties and good shape for silicon steel finished strip. However, in the actual production process, there are serious corrugated defects on the surface of silicon steel finished strip, and production efficiency of continuous casting is low... 

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. 

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。

电动汽车电机在高速旋转时承受离心力和电磁力的作用,在进行电机转子设计时,既要考虑电磁性能,还要考虑机械性能。对电机转子受力情况进行了综述,分析了转子用电工钢疲劳性能参数的重要性,详细阐述了试样抛光、表面处理、试样的对中和安装对测试结果的影响。 The motor of electric vehicle bears big force for high speed rotors,mainly including centrifugal and electromagnetic forces.The magnetic and mechanical aspects of the electrical steel are crucial to machine design.In this paper,the forces applied on the motor were summarized and importance of fatigue properties was analyzed.The influence of specimen polish,surface treatment,alignment and installation on fatigue testing result were represented in detail. 

本发明公开了一种可替代高磁感取向硅钢常化退火的热处理方法。该方法包括对所述取向硅钢的铸坯依次进行热轧、酸洗和冷轧，省去了常化酸洗工序中的常化退火工艺。所述热轧工序包括加热、粗轧和精轧过程，所述精轧过程中，热轧板离开精轧机最后一个机架时的温度达到1000～1050℃；或者，所述酸洗工序后，对热轧板进行通电加热至1000～1050℃；然后，对热轧板采用短时通电加热控制冷却速度，通电加热2‑5s使热轧板的温度降至940～960℃。采用该热处理方法得到高磁感取向硅钢常化板等效织构，满足生产高磁感取向硅钢的织构组分条件，其简化了高磁感取向硅钢的制造工艺，降低了生产成本和能耗，提高了生产效率。

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。

研究了应用电感耦合等离子体质谱(ICP-MS)同时测定硅钢中痕量铝、钼、钒、钛、铌元素的分析方法。通过条件试验对测量参数进行了优化,确定RF功率1 400 W,泵速30rpm,采样深度140,雾化压力0.90。样品采用硝酸分解,以Be、Y混合内标校正了测量过程中高基体引起的信号漂移。根据测量时存在的质谱干扰情况,选择同位素27 Al、98 Mo、51 V、47 Ti和93 Nb作为测定同位素,同时通过调节仪器参数使得双电荷离子和氧化物离子的产率最低,以减少其带来的干扰。采用基体匹配法配制校准溶液,以标准加入法建立工作曲线,并扣除试剂空白。该方法各元素的测定下限均可达到1μg/g。用于硅钢标准样品的测定,所得结果与参考值完全吻合,各元素的RSD小于5.2%。 A method for the determination of trace aluminum,molybdenum,vanadium,titanium and niobium in silicon steel by inductively coupled plasma mass spectrometry(ICP-MS) was described.A series of single parameter condition experiment was conducted.The optimized operation parameters with RF power 1 400 W,turbo pump rate 30 rpm,sampling depth 140 and nebulizer pressure 0.90 were obtained.The samples were dissolved by HNO3,and the Be and Y mixing internal standard were used to eliminate the signal drift c... 

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。