钢厂
常化和退火工艺对冷轧无取向硅钢高频磁性能和强度的影响
冷轧无取向硅钢(/%:0.003C,2.35Si,0.22Mn,0.011P,0.002S,0.36A1,0.003 0N)经890℃或940℃3 min常化的2.3 mm热轧板冷轧成0.35 mm薄板。研究了常化温度和800920℃3 min退火对该钢高频(400Hz)磁性能和抗拉强度的影响。结果表明,830920℃退火时高频铁损P10/400值最低,随退火温度增加,晶粒尺寸增大,钢的抗拉强度降低;该钢的最佳热处理工艺为常化温度940℃,退火温度830℃,其抗拉强度Rm、高频铁损P10/400和磁感应强度J50分别为565 MPa,21.5 W/kg和1.69 T。 The cold-rolled non-oriented silicon steel(/%:0.003C,2.35Si,0.22Mn,0.011P,0.002S,0.36A1,0.003 0N) is cold-rolled to 0.35 mm sheet from 2.3 mm hot-rolled plate normalized at 890 ℃ or 940℃ for 3 min.The effect of normalizing temperature and annealing process at 800 920 °C for 3 min on high frequency(400 Hz) magnetic properties and tensile strength of the steel has been tested and studied.Results show that with annealing at 830 920 ℃the high frequency iron loss value P10...
热轧无取向低硅钢SGG的研制开发及生产
针对川威950的工艺现状,结合无取向低硅钢SGG生产的工艺特点,主要从控制其钢坯加热和轧制以及终轧温度和卷曲温度几方面入手,进行无取向低硅钢生产的工艺控制研究。同时根据近6000吨的生产实践表明,该工艺措施能很好的满足该钢种的需要。 950 process Chuanwei status quo,with non-oriented silicon steel production process features low,mainly from the control of billet heating and rolling and finish rolling temperature and coiling temperature of several aspects,for non-oriented silicon steel production process of low control at the same time According to nearly 6,000 tons of production practice shows that the process measures could well meet the needs of the steel.
余热利用系统在硅钢连续退火机组中的应用
介绍了烟气余热利用系统的工艺流程及控制思想,结合该系统在钢厂硅钢连续退火机组中的应用实践,估算出烟气余热利用系统每年可节约蒸汽5 040 t,经济效益良好,同时分析了该系统存在的问题及对策。 Introduced a method about the process and control of the application of waste heat system, which had been used into a silicon steel continuous annealing line and profiting a good economic benefit by saving a large number of steam every year, which has been estimated about 5 040 tons, and analyzed the problems and solutions existed in this system.
无取向电工钢RH脱硫渣系的研究
在15 kg真空感应炉上,用CaO-Al2O3-SiO2-MgO渣系进行脱硫试验,探讨了脱硫渣系碱度、MI、Al2O3、CaF2对脱硫效果的影响。研究结果表明,随脱硫渣系碱度、MI、Al2O3和CaF2含量的增加,脱硫率都呈现先增加后减少的趋势。初始硫含量为0.009 33%~0.010 73%,加入脱硫渣系4 min时间内表观脱硫速率为(0.000 96~0.001 49)%/min,平均脱硫率为81.2%,最高达86.8%。当脱硫渣中w(CaO)=58.15%、w(SiO2)=4.85%、w(Al2O3)=25%、w(MgO)=6%、w(CaF2)=6%,脱硫效果最好,此时钢液中硫为0.001 33%。 Experiments on desulfurization of molten steel using CaO-Al2O3-SiO2-MgO based desulfurization slag was carried out in a 15 kg vacuum induction furnace. The effects of desulfurization slag basicity,MI, Al2O3and CaF2on desulfurization of molten steel were studied. The results show that with the increase of basicity,MI,Al2O3or CaF2in desulfurization slag,the desulfurization rate rises initially and then decreases. In addition,as the initial sulfur content is 0. 009 33% ~ 0. 010 73%,the apparent des...
CN202030776179.6硅钢片
1.本外观设计产品的名称:硅钢片。;2.本外观设计产品的用途:多片硅钢片用来共同组成马达的转子的其中一个部件。;3.本外观设计产品的设计要点:在于本外观设计产品的形状。;4.最能表明设计要点的图片或照片:立体图。;
抑制剂成分对取向硅钢夹杂物析出及磁性能的影响
利用FE-SEM、EDS分析了含不同抑制剂成分的成品取向硅钢中夹杂物的组成和形貌,统计其尺寸及数量分布;结合对磁性能测试的结果,分析了Sn、Cu、Nb和Cr对取向硅钢磁性能影响的机理。结果表明:含Sn的取向硅钢试样中夹杂物主要为块状的微米级Al-Ti-C-N-O复合物,还有少量的球形Al-N-O颗粒和块状Ti-C-N-O颗粒,棒状夹杂物较少;含Cr的取向硅钢试样中夹杂物主要为球形的微米级Al2O3,还有少量Cu-Al-N-O-S复合物,棒状夹杂物和不规则夹杂物均较少;含Cr试样中1~3μm夹杂物的平均尺寸较含Sn试样小,但数量多,而大于3μm夹杂物的平均尺寸较含Sn试样大,但数量很少。磁性能测试结果表明,外场为800A/m和2500A/m时,含Cr试样磁感应强度偏低,铁损值P1.7/50较含Sn试样高,为1.171W/kg。 The composition and morphology of inclusions in the finished grain-oriented silicon steels are analyzed by using FE-SEM and EDS, and the number density and size distribution of the inclusions are counted. The influence mechanism of Sn, Cu, Nb, and Cr on the magnetic properties of the steel is also discussed. Results show that the inclusions composition in the grain-oriented silicon steel samples containing Sn is mainly block Al-Ti-C-N-O, compounding with a few spherical Al-N-O and block Ti-C-N-O...
罩式炉常化工艺对热轧硅钢50W350组织和性能的影响
研究了罩式炉常化工艺对50W350硅钢热轧板组织、夹杂物和性能的影响。研究结果显示,罩式炉常化工艺在温度一定的情况下,随着保温时间延长,硅钢晶粒逐步再结晶并长大,同时析出物也在聚集长大。通过制定合理的罩式炉常化工艺,可以实现硅钢晶粒的再结晶和长大,从而达到连续退火炉常化工艺产品技术要求。 The influence of normalization process with a bell furnace on the structure,inclusions and properties of 50W350electrical steel hot-rolled sheet was studied.The research results showed that:when the steel was normalized at a certain temperature in the bell furnace,the silicon steel grains gradually recrystallized and grew up with the extension of the annealing holding time,and at the same time,the precipitates also gathered and grew up.The recrystallization and growth of the silicon steel grains...
CN202110640634.3一种硅钢片叠装用上料系统
本发明涉及一种硅钢片叠装用上料系统,包括放置板,设置于硅钢片横剪线的出料端处,用于接收硅钢片并堆放;供料板,设置于硅钢片叠装线的上料端处,用于接取放置板并对进行初定位;输送单元,设置于硅钢片横剪线的出料口处,用于放置板并实现放置板的输送;转运单元,设置于输送单元的出料口处,用于接取放置板并将放置板输送给供料板;上料单元,设置于硅钢片叠装线的上料端处,用于接取供料板并为硅钢片叠装线进行供料。本发明的优点在于:通过放置板、供料板、输送单元、转运单元、上料单元之间的相互配合,从而将硅钢片横剪线裁切好的硅钢片送至硅钢片叠装线处进行叠装,整个过程无需再由人工搬运,大大降低了人工劳动。
CN202023335752.3一种硅钢抛丸用耐磨抛丸头
本实用新型属于抛丸设备技术领域,具体涉及一种硅钢抛丸用耐磨抛丸头,包括壳体、进丸管、定向套、分丸轮、多块截面呈工字形的叶片和两块对称设置的护板,多块叶片沿护板的周向均匀分布,叶片安装在两块护板之间;叶片的左右两侧分别设有一组卡槽,一组卡槽包括两个卡槽,一组卡槽上滑动连接有能与叶片表面接触的耐磨板;叶片上设有用于固定耐磨板位置的固定件;壳体内可拆卸的安装有耐磨衬板。在本方案中,将耐磨板可拆除的安装在叶片中,耐磨板对叶片有保护的作用,能避免叶片被磨损;当耐磨板损坏后只需更换新的耐磨板,而不需更换叶片,能够有效节省成本。同样的耐磨衬板对壳体也有保护作用,能够在很大程度上减少壳体被磨损。
无取向电工钢边部减薄控制技术研究
叠片系数是冷轧无取向电工钢的重要质量指标。为了提高叠片系数,必须保证无取向电工钢板形良好以及横向厚差小。针对攀钢冷轧厂4机架HC轧机轧制无取向电工钢的边部减薄问题,以无取向电工钢横向厚差最小作为目标函数,建立了一套针对无取向电工钢边部减薄控制的辊型曲线优化数学模型,开发了无取向电工钢专用辊型曲线,使无取向电工钢横向厚差从25μm降低到10μm以下,取得了良好的控制效果。 The lamination factor is an important quality index of non-oriented silicon steel strip.Considering the lamination factor,the non-oriented silicon steel must have a good shape and a smaller transverse thickness difference.In order to solve the edge thinning of non-oriented silicon steel strip in Panzhihua Steel,a mathematic model for designing the roll shape is built.In the model,the transverse thickness difference of non-oriented silicon steel strip is taken as the objective function.Based on t...
Sn含量对高磁感取向硅钢热轧板织构的影响
实验室模拟薄板坯连铸连轧(TSCR)流程制造高磁感取向硅钢,借助电子背散射衍射(EBSD)技术对不同Sn含量的热轧板织构进行了研究。研究结果表明:不同Sn含量热轧板表层及次表层均为高斯织构、铜型织构及黄铜织构的混合织构,中心层为{100}面织构;Sn含量为0.1%时,热轧板表层及次表层高斯织构组分最多,取向密度最大,成品磁感最高,达到1.875 T。 Texture of grain oriented silicon steel hot rolled by thin slab casting and rolling process(TSCR) in laboratory with different Sn contents was analyzed by electron back-scattered diffraction(EBSD).The results show that the hot rolled slabs with different Sn contents have the same texture,i.e.,Goss,Copper and Brass.Specifically,the texture of core layer is {100};While the hot rolled slab with 0.10% Sn,the surface layer and subsurface layer have a sharpness Goss texture and the finished products h...
CN202120877546.0一种变压器硅钢片卷吊装件
本实用新型公开了一种变压器硅钢片卷吊装件,包括横梁和两个吊钩组件,在横梁两端之间的中部设置有吊挂连接构件;两个吊钩组件呈左右对称设置于横梁,吊钩组件与横梁滑动连接,在吊钩组件与横梁之间设置有第一锁紧机构,横梁通过吊挂连接构件与吊机上的吊索连接,在对不同宽度的硅钢片卷进行吊装时,松开两个第一锁紧机构,调节好其中一个吊钩组件的位置,并锁紧固定好,使得固定好的吊钩组件插入硅钢片卷其中一端内,最后将另外一个吊钩组件插入硅钢片卷另一端内,并锁紧固定,本实用新型通过两个吊钩组件来勾住硅钢片卷的两端,可避免硅钢片卷在起吊过程中损坏卷边,也可满足不同宽度的硅钢片卷的吊装。

