硅钢资料

本申请涉及激光焊接技术领域，特别涉及一种电机定子硅钢片自动焊接工装。该工装包括定位组件，压板组件和旋转组件。其中，定位组件用于承载定子硅钢片，所述定位组件具有用于在径向上对定子硅钢片进行限位的限位结构；所述压板组件位于定位组件的顶端，用于压住定子硅钢片；旋转组件承托于定位组件的底端，并带动定位组件转动。本申请实施例提供的一种电机定子硅钢片自动焊接工装，能够解决在旋转焊接时，无法保证定子硅钢片与工装夹具的同心度相同，致使焊缝质量不过关的问题，以及激光焊接中，硅钢片与工装夹具易粘连的问题。

针对新能源汽车的发展，制备了含Ni固溶强化、含Cu析出强化以及含Ni+Cu复合强化3%Si无取向硅钢，研究了强化方式对无取向硅钢组织、织构和性能的影响。结果表明：固溶强化型无取向硅钢热轧板中形成了粗大{221}<221>晶粒，冷轧过程中剪切变形明显并在退火后形成良好再结晶织构。析出强化型无取向硅钢热轧板中心层形成γ取向粗大晶粒，在后续的加工中γ织构逐渐增强并最终得到相对细小的再结晶晶粒。复合强化型无取向硅钢热轧板中保留了强λ取向带状组织，退火后形成了有益的Goss织构和λ织构。固溶强化型与复合强化型无取向硅钢磁感应强度B₅₀分别达到1.742、1.688 T,高于析出强化型无取向硅钢的1.645 T。同时，复合强化型无取向硅钢高频铁损最低，其P_1.0/400和P_{1.0/1 000}分别低至20.97、82.69 W/kg,这与其较小的晶粒尺寸和织构改善有关。强度计算结果表明：Ni元素固溶强化对强度的提高有限，屈服强度为468 MPa,纳米Cu析出可显著提高屈服强度（强度增量约200 MPa）,且主要来自于模量强... For the development of new energy vehicles, 3%Si non-oriented silicon steel were processed by solid solution strengthening with Ni, precipitation strengthening with Cu, and composite strengthening with Ni and Cu. The effects of different strengthening methods on the microstructure, texture and properties of high-strength non oriented silicon steel were studied.The results show that coarse {221}<221> grains are formed in the hot rolled sheet of solution strengthened non-oriented silicon ste... 

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. 

采用轧制法制备出具有低铁损高磁感0.23mm厚6.4%(质量分数)Si高硅钢。沿轧制方向的最终磁性能为B8=1.474 T,B50=1.714 T;P10/50=0.30W/kg,P15/50=0.88W/kg。利用X射线衍射及背散射电子衍射(EBSD)技术分析了高硅钢在轧制及退火过程中的织构演变过程。结果表明,通过采用大压下率热轧,确保热轧板次表层中产生更多的高斯织构,随后进行遗传;温轧板中粗大的晶粒有利于冷轧剪切带的形成;冷轧板经脱碳退火后生成强{210}〈001〉织构及次表层较强的高斯织构是在轧向上获得高磁感的原因,归因于其在{111}〈112〉冷轧形变晶粒内的剪切带优先形核并长大;最终退火后虽出现了随机取向,但以{310}〈001〉织构为代表的η织构得以保留并且增强,进一步提高了磁感。随着退火温度的升高及保温时间的延长,高硅钢薄板晶粒尺寸不断增大,铁损明显降低。 6.4wt%Si high silicon steel sheets(0.23mm thick)with low iron loss and high magnetic induction were successfully produced by rolling process.The final magnetic properties along the rolling direction(RD) were:B8=1.474T,B50=1.714T;P10/50=0.30 W/kg,P15/50=0.88 W/kg.The texture evolution during rolling and annealing was investigated by means of X-ray diffraction and electron backscatter diffraction(EBSD).It was found that more Goss textures formed in the subsurface of hot rolled plates by using larg... 

通过Axio Imager金相显微镜考察4.5%~7.0%硅(质量分数)对高硅钢材料组织形貌的影响,并利用Fe-6.5%Si高硅钢薄板制备方法对其进行轧制,通过DDL50电子万能试验机对阶段产品进行力学性能测试。结果证明,硅含量为5.58%的高硅钢在实验硅含量区间内存在最大延伸率及最小铸态组织晶粒尺寸。 An investigation about the influence of 4.5%-7.0% Si on microstructure and mechanical properties of high-silicon steel was presented.SEM was adopted to take an observation towards microstructure during fabrication,and DDL50electronic universal testing machine was applied into the detection of tensile curves.The results show that silicon steel with 5.58% Si provides the maximum elongation and minimum grain size as cast. 

本发明提供了一种无取向电工钢，以质量百分比计，其成分包括C：0.0010～0.0050％，Si≤2.5％，Al≤0.01％，Mn≤0.80％，P≤0.10％，S≤0.0070％，N≤0.0030％，其余为Fe及不可避免的杂质。本发明还提供了一种无取向电工钢的制备方法。本发明提供的一种无取向电工钢，不添加偏析或稀土等贵重元素且磁性能好、成材率高，本发明提供的无取向电工钢制备方法，工艺流程简单、生产周期短、制取成本低，且无需热轧板常化。

本发明公开了一种新能源汽车驱动电机用低铁损高强度无取向电工钢及其制造方法，所述无取向电工钢的化学成分及重量百分比包括C：0.001‑0.005％、Si：2.4‑3.0％、Mn：0.25‑0.5％、Al：0.70‑1.10％、P：≤0.02％、S：≤0.005％、0.015％≤Ce+Sn≤0.035％，余量为铁和不可避免的杂质，本发明通过加入Ce和Sn，净化钢质、微合金化提高无取向电工钢强度和磁性能，不需要添加固溶金属元素，且避免了高Si体系下的轧制困难问题，且不需要高温退火，解决了退火温度过高使晶粒异常长大，晶粒尺寸均匀性降低的问题，生产出的无取向电工钢具有较高强度的同时，还具有优良的磁性能。

本发明公开了一种硅钢片激光曲线开料机，本发明涉及电力设备技术领域，目前现有的硅钢立体三角形卷铁芯的机械式斜度开料机在开料过程中精度差、效率低，且在硅钢片送料的过程中，长时间后硅钢片容易发生松散情况，同时只能对单一厚度的硅钢片进行输送工作，包括放料组件和开料组件以及收料组件，所述放料组件用于对硅钢片的放料工作，所述开料组件用于对硅钢片的开料工作，所述收料组件用于对硅钢片的收料工作。该硅钢片激光曲线开料机，通过利用高速激光曲线开料，效率高精度好，且硅钢片在输送的过程中，能够自动调整导向辊的位置，进而能够对硅钢片起到很好的导向作用，使其表面时刻为张紧状态，进而保证硅钢片的开料效果。

利用加热炉模拟、动态再结晶以及热模拟等试验方法以及扫描电镜、金相显微镜等分析观察手段对无取向硅钢边裂的成因进行了探讨。结果表明,长时间加热使得板坯边部晶粒异常长大,晶界氧化并脱碳,轧制过程中边部温度过低,动态再结晶过程变弱,使得板坯边部延伸性能变差,是导致硅钢边裂的主要原因。建议通过适当降低铸坯加热温度、缩短保温时间、提高终轧温度来改善硅钢边裂缺陷。 The behaviors of high temperature oxidation,dynamic recrystallization,and hot ductility,microstructure evolution were investigated on the non-oriented electrical steel sheets to discuss the formation of edge crack.The key causes of cracking was found to be the coarse as-cast microstructure,grain boundary oxidation and decarburization in reheating furnace,as well as reduced temperature at strip edge region during hot rolling process resulting in reduced hot ductility and lack of enough dynamic re... 

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... 

通过热力学计算与模拟试验研究了含钒钛取向硅钢中氮化物析出相的析出规律与析出行为,并探讨了含钒钛元素的氮化物析出相作为薄板坯连铸连轧流程制备取向硅钢中辅助抑制剂的可行性.研究表明,在所冶炼的含钒钛取向硅钢的成分范围内,Ti N在钢液凝固末期便具备析出的热力学条件,而Al N与VN只可能在凝固后的α+γ或α+Fe3C两相区内析出.含钒钛取向硅钢中氮化物析出相以成分复杂的复合析出相为主,且随着钒钛加入量的增加,钢中抑制剂析出相总的分布密度由于含钒钛元素的氮化物析出相的增加而明显提高,使抑制剂抑制初次再结晶晶粒正常长大的能力得以加强,最终成品的磁感应强度值B8由1.857 T提升至1.898 T.同时,加入不高于0.007%的Ti与不高于0.005%的V不会影响中间脱碳退火工序的脱碳效果以及高温退火净化阶段硫、氮的脱除效果,其形成的含钒钛元素的纳米级氮化物析出相适合作为薄板坯连铸连轧流程制备取向硅钢的辅助抑制剂. The precipitation behavior of nitride precipitates in grain-oriented silicon steel containing vanadium and titanium elements produced by thin slab casting and rolling process was studied by thermodynamic calculation and simulation experiment. The feasibility of nitride precipitates containing V and Ti elements as auxiliary inhibitors was also investigated. It is found that Ti N is likely to precipitate at the final stage of solidification in the grain-oriented silicon steel,but VN and Al N can p... 

高强无取向硅钢主要应用于高速电机，要求其具备高强度和优异磁性能，但目前无取向硅钢的磁性能和强度难以兼顾。因此，设计并制备了添加微量Cr的含Nb高强无取向硅钢，通过光学显微镜、EBSD、万能拉伸试验机、四探针测试仪和磁性能测量仪等研究了Cr对含Nb高强无取向硅钢微观组织、织构、力学性能及磁性能的影响。结果表明，添加质量分数为0.5%的Cr抑制了热轧组织的回复，使常化和退火组织再结晶减弱，常化和退火后有利织构面积分数增加，不利织构面积分数减小。添加质量分数为0.5%的Cr使含Nb无取向硅钢的屈服强度显著增大，磁感略升高，但对铁损几乎没有影响。Cr对屈服强度的影响一方面是由于Cr的固溶强化作用，另一方面Cr促进了Nb的析出而使Nb的析出强化效果增强；而Cr提高含Nb高强无取向硅钢的磁感主要是由于促进有利织构形成的同时抑制了不利织构的形成，使得织构因子增大；添加Cr使无取向硅钢的电阻率增加从而使铁损降低，同时Cr促进了Nb的析出，而这种富Nb析出相不仅抑制晶粒长大且会阻碍磁畴移动而使铁损增高，在两方面因素的综合作用下，添加质量分数为0.5%的Cr对含Nb高强无取向硅钢的铁损几乎没有影响。因此，... High strength non-oriented silicon steel is mainly used in high-speed motors, which requires good mechanical and magnetic properties. However, it is difficult for non-oriented silicon steel to obtain high strength and good magnetic properties at the same time. In this paper, the Cr-microalloyed Nb-containing high strength non-oriented silicon steel was designed and prepared. The effect of Cr on the microstructure, texture, mechanical properties and magnetic properties of Nb-containing high stren...