硅钢资料

通过试验确定氩气分析流量为3.5L/min,静态流量为0.75L/min,冲洗时间为3s,预燃时间为12s,积分时间为5s的激发条件,采用火花源原子发射光谱法测定取向硅钢中碳、硅、锰、磷、硫。分别采用铣床铣样、砂轮磨样两种制样方式进行了精密度考察,发现制样方式对结果影响不大;讨论了取向硅钢样品中碳、硅、锰、磷、硫测定时可能存在的共存元素干扰,发现硅对锰元素的干扰不可忽略,采用干扰系数法进行了校正,据此拟合得到各元素校准曲线的相关系数均在0.999 0以上。精密度考察结果表明,碳、硅、锰、磷、硫的相对标准偏差(n=10)在0.71%~9.4%之间。对两块取向硅钢生产样品进行分析,并与钢铁研究总院进行比对分析,结果一致,且偏差均在允许范围内。 Carbon,silicon,manganese,phosphorus and sulfur in oriented silicon steel were determined by spark source atomic emission spectrometry.The selected excitation conditions were as follows:the analytical flow rate of argon was 3.5L/min,the static flow rate was 0.75L/min,the flush time was3s,the precombustion time was 12sand the integration time was 5s.Two sample preparation methods,including milling machine and grinding wheel,were investigated.The precision test results showed that,the determination... 

利用X-射线衍射织构分析和线形分析技术测定了交叉轧制双取向硅钢在制备工艺各阶段的织构及微结构,进而探讨了立方织构({100}<001>)的形成过程。通过对实验结果的分析可知,二次冷轧和交叉轧制工艺为立方织构提供了内能优势和有利的形变织构,而低温预退火工艺既强化了立方织构的内能优势,又为立方织构的异常长大提供了有利的组织保证,最终在抑制剂(AlN和MnS)的协同作用下,硅钢在二次再结晶退火后形成了强烈的立方织构。 The texture and substructure of the double oriented electrical steels produced by the cross rolling technology during the difference process has been measured by means of the X-ray texture and diffraction peak profile analysis technology,and research the formation mechanism of cube texture,{100}<001>.The results show that the dominances of inner energy and deformation texture were supplied by secondary cold rolling and the cross rolling technology and strengthened by pre-annealing at a low... 

本申请公开了一种低铝无取向硅钢结晶器液面波动的控制方法，包括：步骤1：KR脱硫，脱硫后铁水硫含量≤0.0015%；步骤2：转炉吹炼，转炉出钢后钢包顶渣厚度≤30mm；步骤3：RH真空处理，RH脱碳结束后，加入铝粒脱氧后钢液循环3‑5min，提升气体流量至0.8‑1.0m3/（h·t）；随后加入合金进行脱氧合金化，提升气体流量至0.5‑0.7m3/（h·t）；步骤4：连续浇注，长水口氩气流量150‑200L/min，连铸塞棒氩气流量5‑10L/min，背压≥0.05bar。本申请的控制方法控制结晶器液面波动≤±1.5mm的比例稳定在90%以上。

采用低温板坯加热制备取向硅钢,通过透射电镜(TEM)观察并研究热轧板中的析出物,用ODF织构法研究热轧板距表面1/8、1/4和1/2处的织构分布。结果表明,热轧板中的析出物主要是密排六方AlN,AlN形貌呈规则长方形,AlN颗粒大小不等,分布密度低;热轧板中的织构沿板厚方向,由亚表层的{110}<001>织构向1/2中心层的α线织构变化,其中{110}<001>织构在热轧板距表面1/4层处最强。 The low temperature grain-oriented silicon steels were produced by acquired inhibitor method.The precipitates in hot rolling strip were observed and studied by transmission electron microscope,and the texture distribution in 1/8,1/4 and 1/2 layers of hot rolling strip were analyzed by ODF method.The results showed that the square shaped h-AlN is the main precipitates in hot rolling strip.The precipitates are varying in size and distribution.The texture of hot rolling strip in thick direction are... 

本实用新型属于输送设备技术领域，具体涉及一种硅钢酸洗用耐酸污水泵，包括泵体，泵体上设有进水口和出水口，泵体内设有叶轮和开有腔室，泵体上还设有喷淋机构，喷淋机构包括水箱、转轴和电机，转轴内开有空腔，转轴的一端伸出水箱并伸入腔室内，转轴上开有与空腔连通并位于腔室内的喷水孔；水箱内滑动连接有密封板，转轴穿过密封板并与密封板螺纹连接，水箱内设有限位部；水箱的上下两侧均连接有进水管，进水管上设有单向进水阀；转轴上设有两个均能与空腔连通的单向排水阀，两个单向排水阀分别位于水箱的两侧。在本方案中，设置喷淋机构，对污水泵内部残留的酸液进行冲洗、稀释，避免酸液残留腐蚀泵体，能有效延长污水泵的使用寿命。

本发明公开了硅钢片铁芯叠片机构，包括送料装置和叠片装置，送料装置包括有磁性传送带、送料件和第一定位杆，磁性传送带用于将已剪切的硅钢片传送至送料件，送料件安装于磁性传送带的下方，并且可沿磁性传送带的正交方向平行伸出，第一定位杆安装于送料件上，用于定位硅钢片，叠片装置设置于送料件的伸出的一方，包括有叠放台、第二定位杆和机械手，叠放台用于叠放硅钢片，第二定位杆用于定位硅钢片，机械手用于将送料件的硅钢片搬运至叠放台上，机械手包括有转动臂和取料单元，取料单元安装于转动臂的端部，包括有电永磁铁，电永磁铁用于吸取硅钢片。根据本发明的硅钢片铁芯叠片机构，可有效提高叠片速度，降低能耗，提高生产效率。

【作者】 安斌； ...

以取向电工钢成分为基础,制备了含C或Mn和S的4种实验钢。观察了接近平衡析出状态实验钢经60%冷轧后在600～1000℃范围再结晶退火过程中微观组织演变,统计分析了再结晶体积分数随退火时间的变化规律,进而计算了各实验钢静态再结晶的激活能。观察了高含C实验钢退火初期再结晶晶粒优先出现的部位。结果表明900～1000℃范围内各实验钢铁素体的化学成分相似,因而其再结晶激活能基本一致。在600～800℃范围内铁素体内会有阻碍再结晶进程的三次渗碳体析出,从而使再结晶激活能明显提高。高C含量实验钢中还会有从奥氏体转变而来的粗大珠光体或渗碳体,轧制过程中其附近形成的变形区会促进600～800℃加热时该区域附近率先发生再结晶形核、降低再结晶激活能。固溶的Mn、S元素可微弱提高再结晶激活能,但高Mn、S含量会改变粗渗碳体从奥氏体析出时的形态。 Four experimental steels based on grain oriented electrical steel containing C,or Mn and S were prepared.Microstructure evolution of the steels close to a state of equilibrium precipitation were observed during annealing processes at 600-1000 ℃after 60% cold rolling,the changes of recrystallization volume fraction were analyzed statistically as the annealing was prolonged,and the activation energy for static recrystallization of the steels were calculated.The locations,where the recrystallizatio... 

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 ... 

本发明公开了一种控制无取向电工钢横向同板差的装置，包括热轧机、圆盘剪、冷轧机和输送辊道，圆盘剪安装在输送辊道两侧且位于热轧机和冷轧机之间，无取向电工钢在输送辊道的运输下依次经过热轧机、圆盘剪和冷轧机，设定热轧机对无取向电工钢的楔形和凸度进行控制，控制无取向电工钢的楔形在20微米内、凸度为20～45微米，冷轧机的工作辊设有倒角。冷轧机为UCM五连轧轧机，UCM五连轧轧机中1#和2#轧机工作辊的单边设有倒角，1#和2#轧机中上工作辊的操作端设有倒角，下工作辊的传动端设有倒角。倒角的深度为0.2～0.3mm，倒角在工作辊上的起始位置到工作辊端面的距离为265‑285mm。本发明还公开了一种控制无取向电工钢横向同板差的方法。

介绍了CSP工艺生产无取向电工钢各工序的设备特点、采用的工艺控制手段和电工钢产品质量情况,结合生产实践证明了马钢CSP工艺开发的无取向电工钢产品丰富了薄板坯连铸连轧的品种结构,发挥了薄板坯连铸连轧生产无取向电工钢性能均一、稳定的特点。 The equipment characteristic,the process control method and the quality of non-orientated silicon steel by CSP process were introduced.Combined with the production situation,it is proved that production of non-orientated silicon steel developed on Masteel CSP line would enrich product structure of thin slab continuous casting and rolling,and it exerts stable performance of non-orientated silicon steel. 

本发明揭示了一种高牌号无取向硅钢及其生产方法。所述无取向硅钢的化学成分以质量百分比计包含：C:0.002～0.004％，S≤0.003％，Si:1.4～1.7％，Mn:0.7～0.95％，P≤0.03％，Sn:0.015～0.035％，11×([Si]‑1.4％)＝14×([Mn]‑0.7％)。所述无取向硅钢的生产方法中，连铸坯加热温度1120～1150℃，精轧终轧温度为890±15℃，最后一道次精轧的压下量≥30％且最后两道次精轧的总压下量≥50％，卷取温度650±20℃；在酸连轧之前不需要进行常化处理，且所得无取向硅钢的磁性能佳，表面无瓦楞缺陷，满足低成本高牌号无取向硅钢的需求。