硅钢资料

试验研究了退火温度(850~950℃)和时间(5~18 min)对2.3 mm热轧硅钢板(/%:0.036C,3.15Si,0.21Mn,0.005P,0.007S,0.032A1)6道次轧制的0.35 mm冷轧板组织和织构的影响。结果表明,退火温度越高,晶粒平均尺寸越大,900℃5 min退火时平均晶粒尺寸41.39μm,试样织构主要集中在γ取向线上的{111}<112>织构组分和{111}<110>织构组分;900℃18 min退火时平均晶粒尺寸为48.08μm,试样的{111}面织构和{112}面织构密度都明显减弱,{001}面织构增强,磁性能较优。 The effect of annealing temperature(850 ~950 ℃) and holding time(5 ~ 18 min) on structure and texture of 0.35 mm sheet by 6 passes cold-rolling from 2.3 mm hot-rolled plate of silicon steel(/%:0.036 C,3.15 Si,0.21 Mn,0.005 P,0.007 S,0.032A1) has been tested and studied.Results show that the higher the annealing temperature the coarser the average grain size;As annealing at 900 ℃ for 5 min the average grain size of steel sheet is 41.39 μm,and the texture in sample is mainly concentrated in y orie... 

一种硅钢厂调功器故障报警自动复位的方法，包括：通过人机界面对炼钢炉温度进行设定，并在炼钢过程中实时获取炼钢炉温度；将炼钢炉实时温度与设定温度进行对比，当炼钢炉实时温度低于设定温度时，启动调节器；调节器输出功率使电阻带加热，使炼钢炉实时温度达到设定温度；当调节器发生故障时，调节器将故障信号发送给后台服务器，后台服务器根据故障指令，按预设规则控制与调节器连接的继电器，控制继电器按压复位按钮，使调节器自动复位。本发明解决了现有技术中通过电气人员来通过复位消除故障状态，耽误时间长，容易产生废品的问题。

本发明属于变压器铁芯生产加工技术领域，具体涉及一种硅钢常化用缝合设备，包括动力机构、钢带送料机构、固定座和移动座，移动座上开有多个凹槽和设有冲压刀；固定座上开有凹腔，凹腔内滑动连接有凸模板，凸模板上设有与凹槽配合的凸块；钢带送料机构包括放料辊、设在放料辊上的钢带卷和送料部，送料部用于输送钢带并使钢带依次穿过硅钢片上的各个开口。动力机构包括动力部、传动筒、均与传动筒连通的固定筒和中间筒。本方案中，在硅钢片的叠合处开设了桥型孔，利用钢带穿过硅钢片叠合处的桥型孔，相当于利用钢带将硅钢片缝合在一起，这样设置能够较好将不同的硅钢片连接成一体。

对无取向硅钢炼钢全流程钢液增钛的原因进行了分析,认为铁水钛含量、转炉出钢温度、转炉下渣量、精炼渣TiO₂含量、钢水罐及RH浸入管混钢种生产是影响钢液增钛的主要原因。通过采取低钛铁水冶炼,减少转炉下渣量,提高出钢温度,添加白灰改质精炼渣等措施,均能够降低钢液中的钛含量。 After analyzing the causes leading to increased content of titanium in molten nonoriented silicon steel during whole steelmaking process, it was concluded that such factors as content of titanium in hot metal, tapping temperature from converter, quantity of roughing slag entered into the ladle from converter, content of TiO₂ in refining slag, molten steel ladle car,carrying out the steelmaking of different steel grades by the same ladle and same RH immersion tube were the main causes ... 

本发明提供一种提高硅锰镇静硅钢浇注性的生产方法，属于钢铁冶炼技术领域。其生产流程包括：转炉冶炼→RH真空精炼→连铸。转炉出钢严格控制下渣量，加石灰、渣面脱氧剂调渣；RH真空精炼脱碳结束后，先加入低碳低硫硅铁脱氧，再加入金属锰、磷铁等进行合金化，同时向钢包渣面加入低碳钢渣面脱氧剂对炉渣进行改质，待钢水成分全部命中后加入钙镁铁合金，循环3‑5min后净循环处理6‑10min，破空出钢；连铸采取保护浇注，浇注过程选用塞棒头中Al2O3≥80％、C≤10％、SiC含量8‑15％、气孔率≤12％，质量密度≥2.9g/cm3的塞棒进行控流，连浇炉数≥15炉/中包。本发明可以显著改善浇注过程塞棒头侵蚀问题，提高连浇炉数，降低生产成本。

本申请提供了一种快速判断取向硅钢常化板冷轧脆性的方法，属于取向硅钢材料技术领域，包括常化机组尾部卷取时随机取样，每卷分别在板中间和两侧碎边边丝进行取样，均沿轧向取样，在试样温度为常温条件下，对碎边边丝进行弯曲测试，并记录每条碎边边丝式样的弯曲次数，统计对应取样的钢卷在冷轧工序的脆断情况，将弯曲实验结果与冷轧脆断情况进行对应统计分析，根据常化板边部的试样弯曲次数是否大于或者等于1次，若否，则判定冷轧脆断。通过检测不同常化工艺条件下常化板的反弯次数，再验证不同弯曲次数前提下的冷轧可轧性，找出弯曲次数与可轧性的对应关系，从而确定常化板的最小反弯次数，以此对冷轧脆性进行判定。

试验的铸态取向硅钢（/%:0.044⁰.056C,3.12³.32Si,0.08⁰.11Mn,0.002⁰.008S,0.002 9⁰.029 1Als,0.006 2⁰.010 9N）由30 kg高频真空感应炉熔炼。通过场发射扫描电子显微镜/能谱仪（FE-SEM/EDS）研究结果表明,0.002 9%Als钢中氧化物主要为SiO₂,存在片状、棒状及近似球状的独立MnS,未发现含铝的氧化物或氮化物;0.0090%Als钢中出现以Al₂O₃为主的复合氧化夹杂物,存在MnS与AlN的复合析出物。钢中Als增加,复合析出物多呈簇状发展。氧化物容易成为MnS-AlN复合析出的核心,钢中Als含量越低,夹杂物中的MnS含量越高;作为核心的氧化物夹杂的尺寸越小,形成的复合夹杂物的形状越规则,尺寸也越小。热力学计算结果表明,钢中Als含量主要影响了钢中氧化物夹杂的组成和AlN的析出温度及析出量。 Test as-cast grain-oriented silicon steel（/%:0.044 ⁰.056C,3.12 3.32Si,0.08 0.11Mn,0.002⁰.008S,0.002 9⁰.029 1 Als,0.006 2⁰.010 9N） is melted by a 30 kg high frequency vacuum induction furnace.The research results by using field emission-scanning electron microscope/energy dispersive spectrometer（FE-SEM/EDS） show that in 0.002 9%Als steel the main oxide is SiO₂,and there is independent laminable,rod-like and approximate ... 

在实验室模拟CSP工艺条件下制备了取向硅钢,研究了二次冷轧中间退火工艺对组织和织构的影响。结果表明,中间退火温度对取向硅钢脱碳,高温退火组织及织构均产生明显影响。经940℃中间退火后,取向硅钢脱碳再结晶晶粒较850℃中间退火的多,且再经高温退火处理后,晶粒粗化,最大晶粒尺寸达4.8 mm;高斯织构组分密度达27.00,较850℃中间退火试样高。 Grain-oriented silicon steel was prepared by simulated CSP technology in laboratory. Effects of secondary cold-rolled intermediate annealing on microstructure and texture were studied. The results show that intermediate annealing has obvious effects on the microstructure and texture of the steels after decarburization annealing and high temperature annealing. After intermediate annealing at 940 ℃,recrystallized grain of decarburization annealed steel is more than that of intermediate annealed at... 

利用OM、TEM与EDS技术,对Fe-3.2%Si低温取向硅钢热轧板进行不同常化冷却工艺处理后的显微组织、析出相及最终产品的磁性能进行分析,并与热轧板的组织和析出相进行对比。结果表明,常化板较热轧板的表层组织均匀,基体中再结晶比例增加,带状组织变窄;常化板中析出物的数量明显比热轧板的多,析出物主要有AlN、MnS及复合析出的(Cu,Mn)S等。在常化温度1120℃、保温3 min的条件下,采用二段式冷却较空冷、淬沸水、淬常温水的冷却工艺,常化板表层显微组织更均匀,沿板厚方向的显微组织的不均匀性显著,取向硅钢的磁性能最高;常化后采用二段式冷却工艺析出的细小析出物数量最多,且弥散分布在基体中,抑制剂的抑制效果最好,对成品获得高磁性最有利。 Microstructure, precipitate and magnetic characteristic of final products with different normalizing cooling processes for Fe-3.2%Si low-temperature hot-rolled grain-oriented silicon steel were analyzed and compared with the hot-rolled plate by optical microscopy(OM), transmission electron microscopy(TEM), and energy dispersive spectrometry(EDS). The results show that, the surface microstructure is uniform, the proportion of recrystallization in matrix increases, and the banding textures are nar... 

采用自主研发的脉冲磁场退火装置，在取向硅钢脱碳退火过程中分别施加不同强度的磁场，并采用光学显微镜和X射线衍射仪研究了脉冲磁场脱碳退火后试样的显微组织和宏观织构。结果表明，脱碳退火过程中施加脉冲磁场后取向硅钢的平均晶粒尺寸均增加，当磁场强度为40 mT时，平均晶粒尺寸最大，为13.06μm。此外，取向硅钢试样的立方织构{001}<100>强度减弱，高斯织构{110}<001>和{111}<112>织构增强，有利于获得更好的成品织构和磁性能。 Self-developed pulsed magnetic field annealing device was used to apply magnetic field of different intensities during decarburization annealing of an oriented silicon steel, and microstructure and macro-texture of the specimens after decarburization annealing in a pulsed magnetic field were studied by using optical microscope and X-ray diffractometer. The results show that the average grain size of the oriented silicon steel increases with the application of pulsed magnetic field during decarbu... 

【作者】 陶永根； ...

研究了电工钢SXRC的显微结构和疲劳性能,并与DP钢进行了比较。结果表明,退火温度低温化能够有效的抑制电工钢的再结晶。该钢在固溶铌的作用下,能够在保证电机磁性的同时具有一定的强度。与DP钢相比,SXRC钢的抗疲劳性能更好。 The microstructures and fatigue properties of the electrical steel SXRC we re investigated, and the properties were also compared with the steel DP. The results show that the recrystallization of the electrical steel can be suppressed at lower annealing temperature. The steel presents favorable motor magnetic and also a compatible strength with the help of solid-solution Nb. Compared with the steel DP, the fatigue resistance of the steel SXRC is preferable.