硅钢资料

本发明涉及一种用于控制硅钢毛刺状厚度波动的工艺，包括如下步骤；将连铸坯送入加热炉中进行加热，连铸坯入炉温度为400‑680℃，连铸坯在炉时间为185‑220min；将加热后的连铸坯进行热轧，轧辊偏心量为0‑0.025mm，将热轧后的带钢进行卷取；将卷取后的带钢酸洗后进行冷轧，冷轧操作模式由多次阶段升降速模式调整为一次性升降速模式，且在一次性升降速阶段将MN‑AGC增益系数增大；将冷轧后的带钢进行卷取，退火后得到硅钢片成品。本发明所公开的用于控制硅钢毛刺状厚度波动的工艺，该工艺对加热、热轧、卷取及冷轧各工序进行优化协调，能够有效解决硅钢毛刺状厚度波动的问题，实现无取向硅钢全长厚度控制精度的提升，而且无需进行设备和系统改造，容易实现，易于推广。

本文研究了丙烯酸树脂含量对以Al(H2PO4)3为基料的无铬无取向硅钢绝缘涂层各项性能的影响.用盐雾实验、动电位极化及交流阻抗等试验手段研究了不同树脂含量对硅钢绝缘涂层的耐盐雾性能和电化学行为的影响,同时采用SEM对涂层的表面形貌和附着性进行研究.结果表明,树脂含量为19.9~29.4%时,涂层的耐蚀性和附着性最好;树脂含量过多时,涂层的耐蚀性和附着性均较差. This paper studies the influence of acrylic resin on the performance of insulating coating of aluminum dihydrogen phosphate on chromium-free non-oriented silicon steel.Salt spray experiment,potentiodynamic polarization and electrochemical impedance spectroscopy were used to study the influence of acrylic resin content on the salt spray resistance and electrochemical behavior of the insulation coating of nonoriented silicon steel.The surface morphologys and adhesion of coating were tested by SEM.... 

本发明提供了一种取向硅钢的磁畴细化方法，属于高磁感取向硅钢生产技术领域技术领域，包括：采用激光在带钢表面烧蚀出若干沟槽；采用腐蚀液对所述沟槽进行腐蚀，获得刻槽；其中，所述沟槽与带钢宽度方向的夹角为0‑20°；所述沟槽的深度为0.5～20μm，宽度为30～200μm；所述刻槽深度为0.5～30μm、宽度为30～300μm。该方法能够显著的细化磁畴，降低取向硅钢片单位损耗，同时细化磁畴的效果能够承受800℃‑900℃的消除应力退火。本发明还提供了一种取向硅钢的磁畴细化方法在取向硅钢生产中的应用。

根据相关的取向电工钢典型专利技术,概述了日本高磁感低铁损取向电工钢低温板坯加热、抑制剂合理调节、关键成分Mn、C、Sn和Sb调节与利用、新型退火剂和绝缘溶液的制备及细化磁畴等生产工艺最新动态和进展情况,并提出了国内企业申请取向电工钢专利时应当借鉴之处。 According to related typical patent technology for grain-oriented electrical steel sheets,the recent trends and progress situation for production process of grain-oriented electrical steel sheets with high magnetic flux density and low core loss in Japan are summarized including low temperature slab heating,suitably regulating inhibitors,adjusting and utilizing key element Mn,C,Sn and Sb,manufacturing for new annealing agent and insulating solutions,and fining magnetic domain,and some suggestion... 

【作者】 陶永根； ...

本实用新型公开了水性硅钢绝缘涂料制备用袋式过滤机，包括下壳体，所述下壳体顶部铰接有一对上壳体，一对所述上壳体均具有连接板，一对所述连接板通过若干个吊环连接，所述上壳体外侧壁面设有上固定座，所述下壳体后壁面设有出液管，所述下壳体内部设有弹出支撑板机构，所述上壳体内部设有上壳体清洁机构，所述下壳体内部设有下壳体清洁机构。本实用新型涉及袋式过滤器技术领域，本装置结构紧凑，通过一对第一气缸铰接于一对上壳体两侧，使上壳体实现向自动两侧打开的功能，取出支撑板时较为方便，上壳体内壁面的挤压销能够对支撑板进行挤压，当上壳体被打开时，支撑板失去挤压销的限位作用时就会从限位槽中弹出，给人们带来了方便。

利用OM、SEM、TEM等实验方法研究了卷取工艺对一种新型含铜无取向电工钢晶粒度和析出相的影响。结果表明,该电工钢热轧带卷取后的晶粒尺寸为18～24μm,在卷取过程中,热轧带中有一定数量的第二相析出,经EDS能谱及选区电子衍射分析,这些析出相主要为AlN。随着卷取工艺的变化,该电工钢的晶粒度大小变化不明显,析出相的类型、尺寸大小不发生改变,体积分数发生一定的改变。 The effects of coiling process on grain size and precipitates of a new copper-bearing non-oriented electrical steel were investigated by OM,TEM and other experimental method.The results show that the grain size of hot-rolled bands after coiling is 18～24 μm.The second phases precipitate during coiling process.They are mainly AlN by EDS spectra and selected area electron diffraction.With the change of coiling process,the grain size of the electrical steel does not change significantly;the type and... 

以试验室模拟CSP工艺生产的Fe-3Si热轧钢带为研究对象,采用正交试验及方差分析的方法,研究了取向硅钢初次再结晶退火工艺对高温退火后获得锋锐的高斯织构的影响。结果表明:取向硅钢两段式初次再结晶脱碳退火工艺参数加热段保温时间及加热温度是高温退火后获得锋锐高斯织构的主要影响因素,其可信度分别在90%和85%以上;在本试验条件下,通过正交试验获得的最佳退火工艺为:冷硬板经600℃保温3 min和850℃保温6 min。 Fe-3Si hot rolled strip was produced by simulating CSP technology in the laboratory.Orthogonal experiment and analysis of variance were carried out to investigate the influence of primary recrystallization on the sharp Goss texture of the oriented silicon steel.The results show that holding time of the heating section and the heating temperature for a sharp Goss texture of the samples annealed has important implications in this experiment conditions,the two-step decarburization annealing process... 

本发明公开了一种控制无取向硅钢边部黑线的生产方法，涉及硅钢轧制工艺领域。本发明提供的方法缩小加热区的装钢间距，降低粗轧冷却水量，并减小R1第一道次侧压量，增大R2末道次立辊侧压量，调整精轧区侧导板和卷取区侧导板的开口度，减少或消无取向硅钢边部黑线。本发明提供的生产方法控制了热轧卷边部翘皮黑线问题，将热轧卷出现边部黑线的概率由之前的60%以上降低至现在的3%以下，热轧及冷轧卷的表面质量得到了明显提升，酸洗裁剪量减小，成材率明显提升，冷轧过程的轧制稳定性也明显提升。

【摘要】 <正>2012年3月29日中国钢铁工业协会在上...

采用XRD、SEM和激光粒度仪等手段,观察并研究了不同特性氧化镁在硅钢表面形成硅酸镁底层形貌特点,并结合热力学和差热-失重分析了MgO-SiO2的反应机理。研究结果表明:粒度小,活性值高的特种氧化镁在高温退火过程中与基体表面氧化物生成的硅酸镁底层,界面中硅酸镁底层嵌入基体较多,表面致密,颗粒细小,有利于形成附着性能优良的硅酸镁底层。 Surface microstructure of Mg2SiO4 coatings formed on the surface of oriented silicon steel coated with different kinds of MgO was investigated by XRD and SEM.The reaction mechanism between MgO and SiO2 was analyzed by TG-DSC and thermodynamic calculation.Results revealed that when the MgO with finer microstructure size and higher activity is employed,a dense Mg2SiO4 layer with finer microstructure and good binding to the steel substrate can be obtained.The results are very helpful for the prepar... 

研究了硼酸对以Al(H2PO4)3为基料的无铬无取向硅钢绝缘涂层各项性能的影响。用盐雾实验、动电位极化及交流阻抗等试验手段研究了不同硼酸含量对硅钢绝缘涂层的耐蚀性和电化学行为的影响,同时采用SEM对涂层的表面形貌进行了研究。结果表明,硼酸含量为9.7%时,涂层的耐盐雾性及电化学性能最好;硼酸含量过少或过多时,涂层的耐蚀性和电化学性能都较差。 Influence of boric acid on the performance of chromium-free non-oriented silicon steel insulating coating based on aluminum dihydrogen phosphate was investigated.Salt spray experiment,potentiodynamic polarization and electrochemical impedance spectroscopy were used to study the influence of boric acid content on the corrosion resistance and electrochemical behavior of the insulation coating of silicon steel.Surface morphologies of the coatings were tested by SEM.Result shows that when the boric ...