钢厂
电脉冲对取向硅钢凝固组织的影响
对熔融态钢液进行处理,研究了电脉冲对于取向硅钢凝固组织的影响作用,利用正交试验法研究了脉冲电容、频率、处理时间和电压等脉冲参数的作用效果。结果表明:电脉冲对钢锭晶粒组织具有明显的细化作用,凝固组织的等轴晶比例大幅上升,影响等轴晶比例的最显著性因素为脉冲频率,最优正交试验参数为电容1 200μF,脉冲频率1 Hz,处理时间5 s,脉冲电压800 V。随着输入能量的增大等轴晶率先增大后减小,脉冲输入能量为某值时,等轴晶率最大,利用经典形核理论和热力学对这一现象进行了解释。 The influence of electric pulse on the solidification structure of oriented silicon steel was investigated by applying electric pulse in molten steel.The affection due to different electric pulse parameters such as electric capacity,frequency,applied time and voltage was studied by orthogonal design test.The result showed that solidification structure of oriented silicon steel could be improved by the electric pulse,and the equiaxed crystal ratio increased obviously.The most influential paramete...
宝钢无取向电工钢发展历程及生产技术进步
简要介绍了宝钢无取向电工钢的发展历程、产品大纲、电磁性能控制情况,以及高附加值新产品的开发、应用情况。概述了近年来宝钢无取向电工钢生产技术进步,主要包括夹杂物控制技术、连轧机高牌号硅钢制造技术、同板差控制技术、环保涂层开发技术等。 This paper briefly summarizes the development history, product catalogue, and magnetic properties of non-oriented electrical steel sheets at Baosteel, as well as the development and application of high-value-added steel grades. Recent advances in manufacturing electrical steel sheets are also introduced, including technologies for controlling inclusion, producing high-grade steel strips by a tandem rolling mill, and controlling the transverse thickness difference of steel sheets, as well as the ...
CN202023185677.7一种环保型无取向硅钢绝缘涂层液生产用篮式研磨机
本实用新型公开了一种环保型无取向硅钢绝缘涂层液生产用篮式研磨机，包括底座，底座顶端的一侧固定安装有支撑柱，支撑柱的顶端固定安装有顶板，顶板的底端设有研磨组件，研磨组件包括两个固定板，两个固定板分别固定安装的顶板底端的中部和底端的另一侧，底座上设有固定组件，固定组件包括四个支撑板，四个支撑板均固定设置底座顶端的另一侧，四个支撑板的顶端固定安装有固定环，固定环的内部放置有料缸，本实用新型的有益效果是：通过研磨组件在粗磨后快速切换至细磨，不需要切换研磨机，提高研磨的效率，通过固定组件将放置在固定环内部的料缸进行固定，防止研磨过程中料缸发生移动。
硅钢氧化镁的制备进展
介绍了硅钢氧化镁制备方法及高质量硅钢氧化镁制备技术的研究进展,并对利用我国丰富的卤水资源制备硅钢氧化镁进行了展望。 The preparation methods of silicon steel magnesium oxide and research progress of high quality silicon steel magnesium oxide preparation technology were introduced.The use of abundant brine resources in the preparation of silicon steel magnesium oxide was prospected.
脉冲磁场退火对取向硅钢磁性能的影响
通过对取向硅钢进行脉冲磁场退火实验,发现在相同的退火时间(6.0 min)内,低于1 T的脉冲磁场可以在一定程度上提高取向硅钢的磁感(B8),而高于1 T的脉冲磁场则会使取向硅钢的磁性能急剧恶化.同时发现,脉冲直流电加热方式会使取向硅钢的磁性能恶化.研究表明,脉冲磁场退火有望成为一种调控材料微观结构的有效手段. We have carried out experiments of annealing by pulse magnetic field.The results show that a pulse magnetic field with intensity lower than 1 T can promote magnetic induction density(B8) of grain-oriented silicon steel,while the magnetic properties deteriorate sharply when intensity is higher than 1 T.It has also been found that heating by using pulse direct current can cause the magnetic properties to deteriorate,in contrast to the traditional heating using resistance furnace.Our research shows...
二次冷轧法与三次冷轧法制备取向硅钢薄带的织构转变规律
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...
CN202122016175.X一种具有废料回收机构的硅钢板带加工用切割装置
本实用新型公开了一种具有废料回收机构的硅钢板带加工用切割装置，包括箱体，所述箱体的前侧靠近顶部处设有电机，所述箱体的顶部靠近前侧处固定连接有竖板，本实用新型一种具有废料回收机构的硅钢板带加工用切割装置，电机在工作时既能带动切割刀进行切割作业，同时还能带动第一筛板和第二筛板以相邻转轴为中心上下摆动，切割的废屑从切割槽穿过达到箱体内腔，第一筛板和第二筛板对废料进行筛分处理，通过隔板设置，隔板将集料盒分为两个存储空间，隔板右侧存储穿过第一筛板和第二筛板的细料，隔板的左侧存储被第一筛板和第二筛板过滤下来的粗料，既方便操作人员对废料进行集中处理，还对废料进行了筛分处理，以此方便对废料进行分类重复利用。
CN202111350649.2一种变压器硅钢片转运吊车
一种变压器硅钢片转运吊车，属变压器生产技术领域，包括车架、驱动部和承载部，驱动部连接车架和承载部，承载部上承载硅钢片。车架包括底板、支撑单耳、后耳片，底板前端两侧向前上方各延伸一个支撑单耳，支撑单耳连接驱动部，底板的中后部两侧各具有一个后耳片，后耳片也连接驱动部。驱动部包括连杆、底双耳、支撑双耳、轴座、转轴和液压缸，连杆具有一对，连杆下端具有底双耳，连杆的中下部具有支撑双耳，连杆的顶部具有轴座，底双耳铰接在支撑单耳上，转轴安装在两个连杆顶部的轴座上，液压缸的两端分别连接在后耳片和支撑双耳上。承载部包括托盘、侧部耳片、拉杆、下双耳和上挂耳，托盘两侧各具有一对侧部耳片，拉杆呈倒Y字形结构。
硼酸对无铬无取向硅钢涂层性能的影响
研究了硼酸对以Al(H2PO4)3为基料的无铬无取向硅钢绝缘涂层各项性能的影响。用盐雾实验、动电位极化及交流阻抗等试验手段研究了不同硼酸含量对硅钢绝缘涂层的耐蚀性和电化学行为的影响,同时采用SEM对涂层的表面形貌进行了研究。结果表明,硼酸含量为9.7%时,涂层的耐盐雾性及电化学性能最好;硼酸含量过少或过多时,涂层的耐蚀性和电化学性能都较差。 Influence of boric acid on the performance of chromium-free non-oriented silicon steel insulating coating based on aluminum dihydrogen phosphate was investigated.Salt spray experiment,potentiodynamic polarization and electrochemical impedance spectroscopy were used to study the influence of boric acid content on the corrosion resistance and electrochemical behavior of the insulation coating of silicon steel.Surface morphologies of the coatings were tested by SEM.Result shows that when the boric ...
