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本实用新型涉及变压器技术领域,具体为一种变压器铁芯的硅钢片加工装置,包括工作台,工作台的顶端靠两侧的位置均开设有滑槽,工作台的底端内壁靠两侧的位置均固定安装有两组伸缩杆,两组伸缩杆的顶端均与滑板的底端外表面相固定,滑板的顶端靠两侧的位置均贴合有滑块,两组滑块的顶端均固定安装有螺纹套,两组螺纹套的内部均与双向螺纹杆的外表面相活动螺接,双向螺纹杆的一端固定安装有摇把,双向螺纹杆的外表面靠中间的位置设置有限位块,摇把的顶端固定安装有固定块。两组弧形板和若干组凸块的设置可对硅钢片进行实时校准的作用,并使得叠加的硅钢片始终保持在同一垂直水平线上从而方便后续操作。
2020-12-26 136 6.8

利用场发射扫描电镜观察了以MnS为主要抑制剂的普通取向电工钢加工过程中第二相粒子的分布状态,统计了粒子面密度、平均尺寸以及相应的尺寸分布.结果显示,热轧加工造成了大量第二相粒子弥散、细小地析出,同时基体仍保持过饱和状态.冷轧变形会造成第二相粒子的回溶行为,而基体的过饱和状态会减弱回溶现象.中间退火与脱碳退火过程中会同时存在新粒子的形核及已析出粒子的粗化两个过程,而在最终二次再结晶升温阶段则以第二相粒子明显粗化为主. The distribution of second phase particles in conventional grain-oriented electrical steels during manufacturing processes with MnS as inhibitors was observed by field emission scanning electron microscopy,while the areal particle density,the average particle size and the corresponding size distribution were statistically determined.It is indicated that hot rolling leads to dispersive precipitation of a large amount of fine second phase particles and the matrix keeps a supersaturated state furth... 
2011-04-28 161 5.8

采用电解法和扫描电镜研究了300 t转炉-RH精炼钙处理对无取向硅钢板(%:≤0.005C、1.2~2.2Si、0.2~0.6Mn、≤0.20P、≤0.005S、0.2~0.6Al、0~0.01Ca)中夹杂物的影响。结果表明,钢中Al含量为0.25%和0.35%时,钢中溶解氧均小于1×10-4%,钙处理后都会产生CaS夹杂物,尤其是含0.35%Al的钢水;钙处理可以有效减少钢中的夹杂物数量,尤其是0.5μm以下的微细夹杂物数量;钙处理后夹杂物的种类以AlN、CaS为主,同时还含有少量的氧化物夹杂物以及AlN-CaS复合夹杂物,尺寸主要为1.5~5.0μm。 The effect of 300 t converter-RH refining calcium treatment on inclusions in non-oriented silicon steel sheet (%:≤0.005C,1.2~2.2Si,0.2~0.6Mn,≤0.20P,≤0.005S,0.2~0.6A1,0~0.01Ca) has been studied by electrolysis and scanning electron microscope.Results show that with 0.25%and 0.35%Al content in steel,all the dissolved oxygen in liquid is less than 1×10-4%,and the CaS inclusions are produced after calcium treatment,especial for the liquid containing 0.35%Al;the amount of inclusions in ste... 
2011-01-28 161 5.8

本实用新型公开了一种取向硅钢加工用的酸洗除杂装置,包括装置主体,所述装置主体一侧固定安装有进气机构,所述装置主体内部活动安装有硅钢片,所述装置主体上方活动安装有一号转杆,所述一号转杆一侧活动安装有二号转杆,所述一号转杆和所述二号转杆外侧表面均安装有柔性吸附套筒,所述一号转杆和所述二号转杆一侧均活动安装有刮杆,所述装置主体前表面固定嵌入安装有一号进气管。本实用新型所述的一种取向硅钢加工用的酸洗除杂装置,能够在取向硅钢酸洗时,加快取向硅钢上方和下方的溶液流通,使酸洗装置内部的溶液浓度保持均匀,且使取向硅钢在酸洗后表面的溶液能快速风干,避免酸溶液过度与取向硅钢发生反应,以免对取向硅钢造成损伤。
2021-11-22 136 6.8

针对新日铁公开的相关专利,总结日本高强度无取向电工钢的研究进展,分析了各专利化学成分、生产工艺及产品性能的特点,指出固溶强化、细晶强化、析出强化、位错强化都有可能被用来提高无取向电工钢的强度。在高强度无取向电工钢的研发过程中,需要根据其具体用途确定目标性能,再采用合适的强化手段,从而实现力学性能、磁性能和生产性能之间的平衡。 Authors summarize the research progress of high strength non-oriented electrical steel in Japan by learning related patents brought into the public by Nippon Steel. Authors also analyze the characteristics of the chemical composition, production technology and properties of products in the patents and point out that any ones of solution strengthening method, fine-grain strengthening method, precipitation strengthening method or dislocations strengthening method may be used to improve the strengt... 
2013-11-28 133 5.8

基于TEAM(Testing Electromagnetic Analysis Methods)Problem 21基准模型和不同类型的磁化曲线Bm-Hm及Bm-Hb数据,分别在50 Hz至200 Hz的频率范围内计算了基准模型的硅钢叠片内的损耗及磁通,并考虑集肤效应和材料的电-磁各向异性的影响。数值计算结果与实验测量结果具有很好的一致性。提出的有限元建模方法和基于模拟结果的分析、结论有助于提高大型电力变压器的电磁设计的有效性。 Based on TEAM(Testing Electromagnetic Analysis Methods) Problem 21 standard model and the different B-H(such as Bm-Hm and Bm-Hb) curves,the iron loss and magnetic flux inside the grain-oriented(GO) silicon steel lamination are modeled under different frequency(from 50 Hz to 200 Hz) in this paper,And the influences of skin effect and electric-magnetic anisotropy on the numerical simulation results have been examined.The calculated and measured results with respect to the model are in good agreeme... 
2011-04-28 164 5.8

本实用新型公开了一种硅钢片加工用进料结构,涉及到硅钢片加工技术领域,包括壳体,壳体的两侧均贯穿开设有通槽,通槽的内部活动贯穿设置有活动板,活动板位于壳体内部的一端贯穿开设有方槽,其中一个方槽的顶端内壁和另一个方槽的底端内壁均固定设置有多个呈等间距分布的锯齿。本实用新型通过将多个硅钢片均挂在两个架板上的挂槽内,因硅钢片重量,带动两个延伸杆向下移动,延伸杆带动活动块向下移动,活动块带动齿条向下移动,从而带动齿轮转动,齿轮转动的同时,能够通过多个锯齿带动两个活动板相互靠近,从而使两个夹板相互靠近并夹紧多个硅钢片,从而能够固定住硅钢片,防止硅钢片传输时滑动,造成磨损。
2021-01-15 126 6.8

国元证券发布深度研究报告《变压器行业深度研究报告-海外变压器供需错配-国产厂商...
2024-03-20 252 2

硅钢连续退火线是无取向硅钢生产的成品线。由于受机组布置的影响,带钢经转向辊进出口活套后,当套量达到60%后就出现偏离生产线的情况,从而影响最终产品的质量及成材率,甚至损坏设备。针对某冷轧厂硅钢连续退火机组出口活套入口处带钢跑偏开展纠偏研究,利用Matlab对该纠偏系统进行动态仿真研究,分析系统的稳定性。 Silicon steel continuous annealing line is non oriented silicon steel production of finished product line.Due to the influence of unit layout,strip by roll Import & Export loop,when the set volume reached 60% after the emergence of deviation from the production line,thus affecting the quality of the final product and the rate of finished products,and even damage the equipment.For the export of continuous annealing line in cold rolling silicon steel strip deviation rectification loop at the e... 
2014-06-28 144 5.8

采用非水溶液电解方法来提取无取向硅钢中夹杂物。通过扫描电镜(SEM)观察结果表明:无取向硅钢中主要夹杂物为六棱柱的AlN、不规则硅酸盐及球状的铁的硫化物和氧化物,其中AlN夹杂尺寸在1~5μm,数量较多,还有部分AlN的复合夹杂。进一步研究了AlN复合夹杂形成机理,采用了Thermo-Calc热力学计算软件计算出该钢样中AlN、MnS析出温度分别为1 240℃、1 200℃,而Al2O3析出温度大于1 800℃,从而为AlN复合夹杂形成机理提供了一个理论依据。 Extracting inclusions from non-oriented silicon steel in non-aqueous electrolysis is a nondestructive method to gain inclusions.Scanning electron microscopy shows that the main inclusions in non-oriented silicon steel were hexagonal AlN,which was of large quantity,irregular silicate,spherical iron sulfide and oxide.The size of AlN inclusions ranged from 1to 5μm,and there were some duplex inclusions of AlN.To further study the formation mechanism of AlN duplex inclusions,Thermo-Calc thermodynamic... 
2014-01-28 148 5.8

试验研究了球刻痕法对高磁感取向硅钢的铁损、矫顽力、相对磁导率、巴克豪森噪声等磁学性能的影响.研究结果表明:经过球刻痕处理后,高磁感取向硅钢的铁损明显降低,矫顽力下降,8 mm球刻痕过后铁损值与矫顽力分别下降16.2%和14.7%,且铁损和矫顽力均随刻痕间距降低而减少.刻痕后的高磁感取向硅钢磁导率在高磁感应强度下明显上升,刻痕后巴克豪森噪声值明显降低,经过对比分析确定8 mm为球刻痕的最佳刻痕间距.从磁畴观察、细化磁畴的原理等方面解释了细化磁畴对高磁感取向硅钢性能的影响原因. The effects of the ball scribing on magnetic properties of high permeability grain-oriented silicon steels,including the iron loss,coercive force,relative permeability,and Barkhausen noise were investigated. The results showed that the iron loss and coercive force of the high permeability grain-oriented silicon steels apparently decreased 16. 2% and 14. 7% respectively after 8 mm ball scribing and they both decreased with the decrease of the scribing spacing at the same magnetic flux density. At... 
2013-11-28 155 5.8

本实用新型公开了一种包容产品转子硅钢片叠加公差的模具机构,包括上下设置的定模固定板和动模固定板,定模固定板下面设置有定模仁,定模仁内穿设有定模型芯,定模型芯的上端设置有定模型芯限位块,定模型芯限位块套设在导向销下端,导向销上套设有定模型芯浮动弹簧B,定模型芯底部设置有台阶面,定模型芯上套设有定模型芯浮动弹簧A,定模仁外圈设置有定模浮动型芯,定模浮动型芯与动模固定板之间设置有动模浮动板,动模固定板中心设置有动模仁,动模仁上套设有产品转子,产品转子上端与定模型芯下端接触。本实用新型提供的一种包容产品转子硅钢片叠加公差的模具机构,能够省去高度调整工序,降低成本和品质管控风险。
2021-07-22 145 6.8

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