硅钢资料

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。

本发明涉及一种取向硅钢热轧钢带的板形控制方法，所述取向硅钢热轧钢带的工艺流程包括铸坯加热过程、轧制过程及层流冷却过程；其中轧制过程中采取取向硅钢与普钢交叉轧制的方式；粗轧过程采取R1轧制1道次、R2轧制5道次的1+5轧制工艺，并控制轧制工艺参数；精轧过程中控制F1～F7轧制工艺参数。本发明通过设定合理的交叉轧制工艺及取向硅钢热轧工艺，使取向硅钢的轧制稳定性大幅提高，取向硅钢带形控制良好，凸度控制在30～50μm之内，楔形控制在30μm之内，板形平坦度控制在25iu之内；从而为冷轧工序提供了优质原料。

以一种新的Fe-Si合金制备工艺为出发点,研究了不同放电等离子体快速烧结工艺(SPS)和Si含量变化对Fe-Si合金材料显微组织与磁性能的影响。结果表明,在烧结温度为1 000℃时制备的Fe-6.5%Si合金(质量分数,下同)的综合磁性能较好,其在50Hz下的铁损为0.549W/kg,最大磁感应强度为0.124 3T,矫顽力245.6 A/m,磁导率0.338mH/m。另外,材料的最大磁感应强度随Si含量的增加显著增长,1 000Hz下,Fe-10.0%Si的最大磁感应强度可达到Fe-6.5%Si合金的5倍左右。 The effects of Si content and SPS technology on microstructure and magnetic properties of Fe-Si alloy material were studied in the paper.It shows that the magnetic properties are the best when the content of Si is 6.5wt% and the sintering temperature is 1 000℃,the iron loss is 0.549W / kg in 50Hz,maximum magnetic induction is 0.124 3T,coercive force is 245.6A / m and permeability is 0.338mH / m。And,the maximum magnetic induction increases significantly with the increase of Si.The maximum magneti... 

借助实验室设备研究了B元素对高牌号无取向硅钢热轧板组织和磁性能的影响。结果表明,与无硼钢相比,含硼钢的热轧板晶粒尺寸略小,析出物的类型和尺寸没有区别,主要是AlN和(AlN+MnS)复合析出物,少量的MnS析出物,尺寸集中在1.0～2.5μm范围内。未发现BN析出物。在力学性能方面,B对钢的软化作用不明显。在磁性能方面,含硼钢的铁损为3.215W/kg,磁感为1.710T,综合磁性能比无硼钢差。 Influences of boron on microstructure and properties of hot rolled band in high-grade non-oriented silicon steel are researched in this paper by experimental equipments.Compared with boron-free steel,the result shows that boron-bearing steel has smaller grain size,but the type and size of precipitations have no differences.The main precipitates are AlN,(MnS + AlN) composite precipitate and few MnS,the range of which are between 1.0 μm and 2.5 μm.BN precipitation is not found.With reward to mecha... 

研究了铝和铬元素在无取向电工钢晶粒长大过程中对织构及晶界变化的影响规律。试验结果表明:电工钢在晶粒长大过程中的主要织构组分均为{111}<112>。在晶粒生长期间,不加铝的1号试样中,{111}<112>、{111}<110>织构组分强化,而{100}<001>织构组分弱化;与1号试样相比,在加入0.2%的铝(质量分数,下同)的2号试样中,{111}<112>、{111}<110>织构组分强化(增加)的速率下降,{100}<001>织构组分变化不明显,甚至稍有增加。在含铝的试样中再加入0.3 5%的铬之后(3号试样),{111}<112>{、111}<110>和{100}<001>织构组分的变化规律与1号试样相似,但当电工钢中加入0.72%的铬之后(4号试样),上述3种织构组分的变化规律与2号试样相似。对于在晶粒生长期间持续变化的3种织构组分而言,1号试样的{1 1 1}<112>和{111}<110>织构组分的高(低)取向差角度晶界频率下降(... The effect rule of Aluminm and Chromium on texture and grain boundary transformation in the nonoriented electrical steel during grain growth was investigated.The experimental result shows that the main texture component is {111}<112> in the electrical steel.The {111}<112> and {111}<110> components in specimen 1 without Alumium were strengthened during grain growth whereas {100}<001> component was weakened.But the growth rate of {111}<112> and {111}<110> compon... 

利用光学显微镜（OM）和扫描电镜（SEM）研究了不同稀土Ce含量的50W470无取向硅钢的铸坯、热轧板和冷轧退火板的宏观和微观组织，并采用磁性能测试仪测定其磁性能。结果表明：当稀土Ce的加入量从0增加到66×10^-6（质量分数）时，铸坯的柱状晶平均宽度从3.82 mm减小到3.24 mm,等轴晶率从43.1%增加到51.3%;热轧板的平均晶粒尺寸逐渐增加，从26.2μm增加到33.3μm,再结晶百分数从24%增加到37%;退火板的平均晶粒尺寸从36.2μm增加到39.3μm;磁性能测试表明，微观组织的变化有利于50W470无取向硅钢铁损降低和磁感提高。 Macro-structure and microstructure of as-cast plate, hot rolled plate and cold rolled annealed plate of 50 W470 non-oriented silicon steel with different rare earth Ce content was studied by optical microscope（OM） and scanning electron microscopy（SEM）, and their magnetic properties were measured by magnetic property tester. The results show that when the addition amount of rare earth Ce increases from 0 to 66×10^-6（mass fraction）, the average width of columnar crystal of the as-cast pl... 

抑制回硅是低硅品种钢冶炼的重点和难点,南钢中厚板卷厂通过转炉出钢弱脱氧操作,精炼炉弱脱氧升温,脱氧、脱硫造渣,连铸严格的保护浇注及吹氩塞棒、吹氩浸入式上水口的应用等一系列工艺优化和操作的改进,使整个冶炼过程钢水回硅量稳定控制在200×10-6以内,钢水终点成分完全满足低硅钢要求。 Control of increasing silicon is the emphasis and difficulty in low silicon varieties steel smelting.The Nisco Wide Plate/Coil Plant can control the silicon content in molten steel keeping within 200×10-6 through whole steelmaking process by using oxygen residual operation in converter tapping,oxygen residual and increasing temperature,deoxidation,desulfurization,slag refining,protection cast,blowing argon by plugged nozzle,blowing argon by submerged entry nozzle in continuous casting,and other ... 

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)。

研究了常化对CSP流程生产的wSi=1.6%的无取向电工钢组织、织构和成品磁性能的影响。结果表明,经CSP流程生产,且在相同的冷轧及退火制度下,经1 000℃×2min常化处理的wSi=1.6%的无取向电工钢热轧板,其最终退火成品的铁损P15/50比不常化试样下降了10.5%,磁感B50比不常化试样提高了2.5%;常化使wSi=1.6%的无取向电工钢成品的平均晶粒尺寸增大,成品铁损P15/50相应减小;同时,常化使wSi=1.6%的无取向电工钢成品中高斯织构的强度增加,γ纤维织构的强度减弱,这有利于成品磁感B50的提高。 The effect of normalizing on microstructure,texture and magnetic properties of non-oriented electrical steel with wSi=1.6% produced by CSP process was investigated.The results show that,under the same cold rolling and annealing system,the iron loss(P15/50) of annealed samples whose hot bands has been normalized by 1 000 ℃×2 min process decreases by 10.5% and magnetic induction(B50) increases by 2.5% compared with the samples whose hot bands was not normalized.The average grain size of non-orient... 

利用DSC、XRD,结合热焓分析对硅钢级氧化镁和二氧化硅的固相反应行为进行了研究。比较了不同二氧化硅原料及混合方法对硅钢级氧化镁反应性的影响,找到了一种更为有效的硅钢级氧化镁反应性的评估方法,克服了传统柠檬酸活性法在比较不同厂家生产的氧化镁的反应性上的局限性。进一步研究了Na₂B₄O₇添加剂、TiO₂添加剂对氧化镁和二氧化硅反应行为的影响,结果表明,Na₂B₄O₇添加剂含量的增加对反应有利,而TiO₂添加剂对反应有阻碍作用。 The solid-state reaction behavior between silicon-steel grade MgO and SiO₂ was investigated by DSC and XRD combined with enthalpimetric analysis.The influence of different kinds of SiO₂ and different preparation methods were studied and a specifical measurement that is more reliable was proposed to evaluate reactivity of silicon steel grade MgO.It overcomes the limitation of the traditional citric acid activity（CAA） method,which can not be used to evaluate the reactivity of... 

本实用新型公开了一种电工钢出炉水雾冷却装置，包括冷却箱和电工钢本体，所述冷却箱的顶部内璧固定有等距分布的第一支管，且第一支管的一端固定连接有第一进水管，所述冷却箱的底部固定有对称分布的两个支撑板，且支撑板的相对侧外壁靠近顶端转动连接有等距分布的辊轮，所述冷却箱的底部内壁和支撑板的上表面均固定有第二支管，所述第一支管和第二支管的圆周外壁均固定有等距分布的喷头。本实用新型水雾分别进入第一支管和第二支管后，从喷头喷出，对电工钢本体的上下两面喷洒降温，水雾均匀的附着于电工钢片的表面，并实现冷却作业，提高冷却效率，也保证了硅钢片的质量，避免硅钢片表面冷却不均匀致使厚度不一。

【作者】 朱凤泉； 黄生银； ...