硅钢资料

本实用新型涉及一种硅钢卷用放料架，属于硅钢卷放料技术领域。包括底板、升降台、支撑座、旋转座、固定轴、内限位块、轴套和外挡块，所述底板上设有升降台，升降台上设有支撑座，支撑座上设有旋转座，旋转座上对称设有两组固定轴，所述固定轴内侧固定有内限位块，其外侧设有可拆卸的外挡块，所述轴套安装在内限位块和外挡块之间的固定轴上且可相对固定轴转动；本实用新型采用升降台，方便人工将笨重的硅钢卷轻松的装入固定轴上，通过可拆卸的外挡块固定，安装快捷，节省人力，安全可靠。

本发明提供一种改善表面麻点缺陷的薄规格中低牌号无取向硅钢及其生产方法，成分C≤0.0025％，1.2≤Si≤1.65％，0.25％≤Mn≤0.35％，0.06％≤P≤0.11％，0.1％≤Als≤0.2％，S≤0.0025％、N≤0.0025％，Ti≤0.0025％，其余为Fe及不可避免的杂质。与现有技术相比，本发明采用较低氢气浓度，防止炉内氧化铁皮还原，减轻碳套辊的腐蚀程度，减少碳套辊结瘤率，改善带钢表面质量；采用合理合金成分设计，提高带钢的力学强度，降低碳套辊结瘤对带钢表面的影响程度，改善带钢表面质量。产品厚度为0.35mm，板面麻点发生率降低，无手感，且辊身周长周期范围内麻点个数≤5个。

本发明提供的一种耐热型低损耗取向硅钢，取向硅钢的单面采用激光刻痕形成平行线状沟槽；所述激光刻痕为取向硅钢制备工艺中的渗氮步骤之后和在涂覆MgO涂层步骤之前实施；在渗氮步骤之后和在涂覆MgO涂层步骤之前进行激光刻痕加工不会破坏高温退火后形成的硅酸镁底层，底层完整性好，刻痕形成的沟槽位于取向硅钢带材金属基体表面，在高温退火过程中沟槽内直接反应生成硅酸镁底层，最终取向硅钢带材表面涂覆张应力涂层后光滑、平整、无凹凸，取向硅钢带材损耗低、叠片系数高、耐热，成品取向硅钢带材既可用于制备立体卷铁心变压器也可用于制备叠片铁心变压器。

本文以热轧常化板为初始材料,采用二次冷轧法与三次冷轧法制备了0.1 mm厚的取向硅钢薄带,测定相应的磁性能,并通过EBSD取向成像技术检测了二次冷轧法与三次冷轧法各工艺过程中织构与组织演变规律。结果表明,采用最终冷轧压下率适中的三次冷轧法,能在冷轧至0.1 mm时保存较多的高斯晶核,使得高温退火后的磁性能明显优于二次冷轧法。最终冷轧压下率通过影响脱碳退火后样品中的{111}<112>织构组分及Goss晶粒数量对最终二次再结晶产生重要影响。 Grain-oriented silicon steel sheets with a thickness of 0. 1 mm were produced from hot-rolled and normalized sheets by two-step-rolling and three-step-rolling methods. Their magnetic properties were measured,and the textures were detected by EBSD technique. The results show that the three-step-rolling method,which has a moderate reduction rate of final cold rolling,can maintain more { 110} < 001 >nucleus,and thus obtaining better magnetic properties compared with the two-step-method. The f... 

针对宝钢硅钢常化退火过程中产生的退火炉辊印缺陷问题,通过实际生产的大数据与产品质量问题相结合,将数据挖掘、数据分析方法应用到实际,一定程度上解决了现场实际生产中的痛点,为现场生产提供决策支撑,避免了以前通过人工识别判定存在疏漏和无法定量判断的问题,形成了一套具有鲁棒性和可操作性的钢铁生产过程数据分析方法。通过智慧决策系统平台获取实际生产和表检仪数据,基于Pearson相关系数算法进行变量挑选和特征工程,并应用随机森林算法对数据建立分类预测模型,实现了质量问题的溯源和监控,通过数据量化预测了炉辊印缺陷是否可通过轧制消除的质量问题,识别准确率达到96.43%。 In views of the normalizing annealing furnace roll marks problem occurred in the process of normalizing annealing of silicon steel in Baosteel,by combining big data from actual production with product quality problems,data mining and data analysis methods were applied to actual production to solve the pain points and provide decision support,a robust and practical data analysis method for the steel production process has been developed,which avoided the previous problems of omission and non-quan... 

采用光学显微镜和X射线衍射仪研究了常化退火处理对无取向硅钢热轧板和成品退火板显微组织和织构的影响。结果表明:常化退火处理消除了热轧板中的变形组织,促使变形晶粒完成再结晶;常化退火处理使高斯织构和立方织构易通过再结晶在变形带内形核和长大,可显著降低成品退火板的{111}和{112}不利织构组分的占有率,提高{100}和{110}有利织构组分的占有率,从而有利于提高无取向硅钢成品板的磁性能。 The effect of normalizing annealing treatment on microstructure and texture of non-oriented silicon steel hot rolled plates and final products were investigated by means of optical microscope and X-ray diffractometer analysis.The results show that the deformed microstructure of the hot rolled plates transformed into recrystallized grain after normalizing annealing treatment.The grains of Goss texture and cubic texture crystallographic orientation were formed and grown by recrystallization in the... 

结合工业化生产的无取向硅钢,进行了RH精炼添加稀土合金实验。结果表明,1.15%(质量分数)Si钢的脱硫反应,主要发生在添加稀土合金之后的前5min。最佳的稀土合金添加量为0.6～0.9kg/t钢。钢液经过稀土处理后,加入的稀土总量越多,稀土氧硫化物夹杂物的尺寸就越大,但热轧带钢再结晶效果会逐渐变差,成品带钢晶粒尺寸先是快速长大,而后逐渐减小。最佳的钢中存留稀土含量与钢的化学成分有关,应严格控制在2.0×10-3%～6.0×10-3%(质量分数)。在此范围内,钢的铁损先是快速降低,而后缓慢升高,钢的磁感应强度则单调降低。 Based on the industrial production of non-oriented electrical steel,rare earth(RE) alloy treatment during the RH refining process was studied.The results showed that the effects of desulfurization and total concentration of RE remained in steel mainly depended on the chemical compositions of different steel grades.For 1.15wt% Si steel grade,the desulfurization reaction mainly focused on the initial 5min after RE alloy added during the RH refining process.The suitable RE alloy addition was 0.6-0.... 

采用双辊连铸工艺制备了硅的质量分数分别为0.5%,1.0%,3.0%,4.5%的硅钢薄带,用光学显微镜观察其组织,并研究了后处理工艺对薄带组织和性能的影响。结果表明:硅含量为0.5%和1.0%的薄带适合采用一次冷轧+850～950℃退火的后处理工艺,而硅含量在3.0%以上的薄带适合采用二次冷轧+950℃退火的后处理工艺;硅含量为3.0%和4.5%的薄带在冷轧并950℃退火后,其磁性能最佳,铁芯损耗约为4.30 W·kg^-1,磁感应强度约为1.68T。 Silicon steel thin strips with silicon content of 0.5wt%,1.0wt%,3.0wt%and 4.5wt%were prepared by twin-roll continuous casting process,and the microstructure of the strips were observed by means of optical microscopy,and on the basis,the effect of post-treatment process on microstructure and properties of the strips was studied.The results show that the post-treatment process of one-time cold rolling and annealing between 850—950℃was suitable for the strips with silicon content of 0.5wt%and 1.0wt... 

借助于EBSD对比研究了常化退火对高牌号无取向电工钢热轧组织和织构演变的影响,分析了常化退火对热轧板各厚度层织构的演变规律。结果表明,常化退火改善了热轧组织的均匀性,并弱化了热轧变形的γ纤维织构。升高常化退火温度,可增大热轧板的晶粒尺寸,提高{100}和{110}织构组分占有率,有利于提高无取向电工钢成品板的磁性能。 Effects of normalizing annealing on microstructure and texture of high-grade non-oriented electrical steel hot-rolled sheet were investigated by EBSD. Emphasis was put on the effects of normalizing annealing on texture evolution in the sheet thickness. The results show that the hot-rolled microstructure homogeneity is improved and the γ-fiber texture is weakened by normalizing annealing treatment. The grain size of hot-rolled sheet and intensity of the {100} and {110} favorable texture can be in... 

本发明涉及硅钢片切片领域，具体涉及一种硅钢片自动切片设备，包括下拉机构、推料机构、硅钢片输送机构、硅钢片推动机构、压片机构、导料壳、两个斜切机构、连接机构和三角切边机构，该硅钢片自动切片设备，通过移动连接机构，使得该设备能够进行两种硅钢片的切割加工，使得该设备能够满足多种硅钢片的加工，通过在移动三角切边机构和斜切机构的位置，使得该设备能够加工出各种硅钢片，且能够单一旋转加工那种硅钢片，并且一次加工出两张硅钢片，通过硅钢片输送机构带动推料机构进行同时运动，避免两个硅钢片之间叠起，当原料与推料机构的端部接触时，由于推料机构的拉动速度比硅钢片推动机构的速度快，避免原料上发生褶皱而影响切割的位置。

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。

以CaO-CaF2复合渣系为脱硫剂,在RH精炼过程采用真空投入法进行高牌号无取向电工钢深脱硫工业试验,采用KTH模型计算分析了RH炉渣成分对硫容量CS的影响。研究结果表明,炉渣成分控制在w((CaO))/w((SiO2))为5~7,w((CaO))/w((Al2O3))为1.5~1.8,w((Al2O3))为25%~30%,w((FeO+MnO))<5%,脱硫剂加入量为6~8kg/t时,钢中硫质量分数从平均0.003 1%降低到0.001 8%,最高脱硫率达到47.1%,平均脱硫率为41.7%。 The industrial trials on deep desulphurization of high grade non-oriented electrical steel were finished through using CaO-CaF2complex based fluxes in RH process.Using the KTH model,the effect of refining slag composition on the sulfide capacities was analyzed.The results show that the chemical composition of refining slag(mass fraction,%)is w((CaO/SiO2))between 5to 7,w((CaO))/w((Al2O3))beween 1.5to 1.8,w((Al2O3)) between 25%to 30%,w((FeO+MnO))less than 5%,and the desulphurizer addition level of...