硅钢资料

结合冶炼无取向硅钢的生产实际,对钢中硫的来源,以及炉渣性质、钢水温度、底吹强度对脱硫的影响进行了分析。研究表明,转炉钢中硫的主要来源为铁水、废钢、铁水渣及石灰带入;冶炼硅钢时,终渣碱度为3.0~3.5,w((FeO))≤20%,终点钢水温度大于等于1 680℃,加大底吹搅拌强度能提高转炉脱硫效果。硅钢平均出钢硫的质量分数为0.004 8%,能满足无取向硅钢对硫含量的要求。 With the actual production of non-oriented silicon steel,the source of sulphur and the effect of metallugic parameters like slag properties,temperature of molten steel and bottom stirring on desulphurizing ability were investigated.The results show that the main source of sulphur is molten metal,scrap,the remaining slag volume in hot metal and lime.The degree of desulphurization for smelting silicon steel can be increased through adopting the following measures,such as the basicity of finishing ... 

提供一种如下的无取向性电磁钢板用钢板：含有：C：0.0040％以下、Si：1.9％以上3.5％以下、Al：0.10％以上3.0％以下、Mn：0.10％以上2.0％以下、P：0.09％以下、S：0.005％以下、N：0.0040％以下、B：0.0060％以下；剩余部分由Fe和杂质构成；分别从板宽方向的两端部向板宽中央10mm的各位置的板厚方向截面组织的重结晶率不足50％；将板宽记为W时，分别距板宽方向的两端部1/4W的位置的板厚方向截面组织的重结晶率在50％以上。

一种电工钢切片用导向装置，涉及电工钢生产装置技术领域，包括导向台、支撑腿、安装块、转轴、辊体、电动机、安装板、滑杆、移动板和导向板；支撑腿设置在导向台底部；安装块设置有两个，两个安装块均设置在导向台横向一侧，两个安装块沿纵向分布；转轴转动设置在两个安装块之间；辊体设置在转轴上，辊体位于两个安装块之间，辊体位于导向台上方；电动机设置在安装块上，电动机与转轴驱动连接；安装板设置有两个，两个安装板分别设置在导向台纵向两侧上部；滑杆设置有两个，两个滑杆均设置在两个安装板之间，两个滑杆沿横向分布。本实用新型能够在电工钢的钢带切片之前进行导向限位工步，使得电工钢切割时不会被切割歪，切片的精度高。

研究了传统工艺流程生产的2%Si无取向电工钢在不同退火温度下的磁性能。研究结果表明,随着退火温度的升高,显微组织均匀性提高且晶粒尺寸增大;有利织构组分{100}<0vw>、α、η增强,不利织构组分减弱;成品的铁损P1.5/50先下降后略有上升,磁感B50上升平缓;在890℃×2 min的退火工艺条件下,成品电工钢的磁性能最佳,对应的铁损P1.5/50小于3.2 W/kg,磁感B50高于1.74 T。 In this paper,the effect of annealing temperature on magnetic properties of non-oriented electrical steel with 2% silicon was studied.Results show that the uniformity of microstructure and the average grain size increase with the rise of annealing temperature.The texture components of annealing can be improved by enhancing {100} <0vw>,α,η fiber textures and weakening {111} <112> fiber texture.The tendency of core loss P1.5/50 shows that it decreases first and then increases,while the... 

研究了电工钢SXRC的显微结构和疲劳性能,并与DP钢进行了比较。结果表明,退火温度低温化能够有效的抑制电工钢的再结晶。该钢在固溶铌的作用下,能够在保证电机磁性的同时具有一定的强度。与DP钢相比,SXRC钢的抗疲劳性能更好。 The microstructures and fatigue properties of the electrical steel SXRC we re investigated, and the properties were also compared with the steel DP. The results show that the recrystallization of the electrical steel can be suppressed at lower annealing temperature. The steel presents favorable motor magnetic and also a compatible strength with the help of solid-solution Nb. Compared with the steel DP, the fatigue resistance of the steel SXRC is preferable. 

结合工业化生产的无取向硅钢,探讨了氧硫交互作用对钢中夹杂物生成的影响。借助非水溶液电解+扫描电镜法,研究了不同O、S含量下钢中夹杂物的变化规律。结果表明,本实验条件下,提高O含量、降低S含量,会劣化热轧组织再结晶效果。在劣化效果上,O的作用大于S;低Si、无Al硅钢中,应尽可能降低O含量、适当提高S含量,以粗化钢中微细夹杂物,减少尺寸小于1.0μm的夹杂物的数量;O、S含量与钢中夹杂物数量不具有关联性。生产过程中,不仅要严格控制O、S含量,还要严格控制生产工艺,以免生成较多的有害夹杂物。 Based on the industrial production of non-oriented silicon steel,the effects of interaction between oxygen and sulfur on the formation of inclusions were discussed.The change of non-metallic inclusions in steel sheets was investigated by means of electrolysis with non-aqueous solution under different oxygen and sulfur content.Results show that the recrystallization microstructure of hot rolled sheets will be deteriorated with the increase of oxygen content and the decrease of sulfur content.The ... 

本发明公开了硅钢片卷材加工用张力机构以及硅钢片剪切机，包括安装架、转动装置和按压装置，安装架的上安装块、连接块和下安装块组成凹槽，转动装置包括下转轴和转动驱动单元，下转轴水平设置，可转动地安装于下安装块上，设置于凹槽中，按压装置包括有上转轴和按压驱动单元，上转轴水平设置于下转轴的上方，可转动地安装于上安装块上，设置于凹槽中，并且可沿上安装块上下运动，其中，上转轴可与下转轴抵接。根据本发明的硅钢片卷材加工用张力机构以及硅钢片剪切机，可加强硅钢片卷材输送过程中的张力，降低硅钢片卷材输送的位置偏差率，提高产品合格率，提高原材料利用率，从而提高生产效率。

一种增大压下率的电工钢冷轧装置及冷轧方法，属于电工钢冷轧技术领域，该电工钢冷轧装置，包括单机架可逆轧机，单机架可逆轧机的两侧均设置有电磁感应加热装置和氮气风冷装置，氮气风冷装置靠近单机架可逆轧机的轧制进口或入口设置，本发明的有益效果是，本发明通过在单机架可逆轧机两侧增设电磁感应加热装置和氮气风冷装置，对每道次轧制过程中可在线调节电磁感应加热温度，实现了边去应力退火边轧制，保证了正常的轧制工作，达到了高效轧制更薄规格电工钢产品的目的和消化生产CSP热轧超厚过渡坯的目的。

本发明涉及一种提高取向硅钢冷轧加工性的生产方法，工艺流程为：冶炼、连铸、热轧、常化、酸洗、冷轧、脱碳渗氮、涂MgO、高温退火、涂绝缘层及热拉伸平整；粗轧中坯厚度35‑45mm，两段常化后进行带钢横向分段式冷却水分布。本发明通过对热轧中坯厚度、终轧温度及卷取温度，常化冷却水量及控制方式的调控，使轧前表层晶粒尺寸降低5‑10μm、珠光体体积分数降低6％，轧材冷轧加工性明显改善、成材率可提高8％以上。通过后续冷轧、脱碳退火和高温退火等工序处理，可保证完善的二次再结晶组织及良好磁性能。

概述了高磁感取向硅钢生产工艺的研究现状及发展趋势。介绍了国内外薄板坯连铸连轧流程生产高磁感取向硅钢的研究现状。从流程工序特点、热履历、组织与抑制剂控制方面进行对比,分析了薄板坯连铸连轧流程相对传统板坯流程生产高磁感取向硅钢的技术优势,在此基础上提出了利用该流程生产高磁感取向硅钢需要解决的主要技术难点。 The current status and development trend of production process for high magnetic induction grain-oriented silicon steel are summarized.The research status of producing high magnetic induction grain-oriented silicon steel by thin slab casting and rolling process at home and abroad is introduced.The potential technical advantages of producing high magnetic induction grain-oriented silicon steel by thin slab casting and rolling process are obtained by analyzing in terms of process characteristics,t... 

双辊连铸技术是冶金及材料领域内的一项前沿技术,对于生产高品质硅钢具有独特优势.本实验研究了一种双辊铸轧w[Si]=4.5%的无取向硅钢,考察其铸态和常化处理后样品的组织、织构及析出相尺寸特征.结果表明:铸带组织以与铸带法向成5~20(°)倾角的柱状晶为主,晶内存在少量0.3~0.4μm的AlN析出相,铸带织构以λ(<001>//ND)织构为主,表层织构漫散.950℃/10 min常化处理后,析出相尺寸增大,表层λ织构增强. As an advanced technique of metallurgy and material science,twin- roll strip casting has unique advantages for producing high quality silicon steel. The present study was aimed at a 4. 5% Si non- oriented electrical steel for analyzing the structure,texture and the size of precipitates at the initial and normalized state. The results revealed that the initial structure mainly consisted of columnar grains with 5 ~ 20( °) angle to the normal of cast strip,and some AlN precipitates of 0. 3 ~ 0. 4 μ... 

采用火花源原子发射光谱分析测定电工钢中超低C,研究试样制备方法、Ar纯度和压力等条件对分析结果的影响,并对工作曲线进行了优化,实现了一次分析同时测定电工钢的多种元素,满足炉前和精炼在线分析的要求。 Ultra-low carbon in electrical steel is determined with spark-source atom emission spectrum.It is researched the influence of sample making method,purity of Ar,and pressure on analysis result.The work curve is optimized.The determination of many elements in electrical steel only in one analysis is realized.It meets demands of on-line analysis for blast furnace and refining.