硅钢资料

为了确定普通冷轧取向硅钢最优的中间完全脱碳退火工艺,在其一次冷轧后进行5种不同工艺的脱碳退火处理,借助扫描电镜及电子背散射衍射技术研究了不同工艺脱碳退火后的组织、织构和脱碳效果。结果表明:经5种工艺脱碳退火处理后,初次再结晶的平均晶粒尺寸均约为19μm,且不随退火温度和时间的变化而变化;经840℃×10min工艺退火后的晶粒最均匀,高斯织构位向更准确,高斯织构面积分数最多,为3.1%,可将碳脱至0.003 5%。 In order to determine the optimal intermediate complete decarburizing annealing processes for common grain-oriented(CGO)silicon steel,five kinds of intermediate decarburizing annealing processes were conducted,the microstructure,texture and decarbonization after different decarburizing annealing processes were studied by scanning electron microscopy and electro back-scattered diffraction(EBSD)technology.The results show that the average grains sizes of primary recrystallization were about 19μm a... 

【作者】 杨洪林； ...

借助光学显微镜、扫描电镜、交流磁性能测量仪和万能拉伸试验机研究了0.3 mm厚高强无取向电工钢冷轧板在780、820、860和900℃退火保温2 min后的组织、织构和性能。结果表明:在退火温度范围内,试验钢均发生了完全再结晶,得到等轴状的铁素体晶粒;随着退火温度的升高,平均晶粒尺寸从9.2μm增长到41.3μm,工频铁损和400 Hz高频铁损均先大幅减小后趋于平缓,磁感应强度先升高后降低。在820℃退火时,铁损P_1.5/50=5.51 W/kg,P_1.0/400=33.22 W/kg均处于较低值,磁感应强度B₅₀₀₀最大,为1.649 T。试验钢的屈服强度和抗拉强度均随退火温度的升高而降低,780℃退火时屈服强度为496 MPa, 900℃退火时降低至407 MPa。综合磁性能和力学性能考虑,试验钢的最佳退火温度是820℃。 Microstructure, texture and properties of 0.3 mm thick high strength non-oriented electrical steel cold rolled sheet annealed at 780 ℃, 820 ℃, 860 ℃ and 900 ℃ for 2 min were studied by means of optical microscope, scanning electron microscopy, AC magnetic property tester and universal tensile testing machine. The results show that in the annealing temperature range, complete recrystallization of the experimental steel occurs and equiaxed ferrite grains are obtained. With the increase of annealin... 

研究了热轧卷取时间对无取向电工钢晶粒组织、织构演变、铁损和磁感的影响。结果表明,成品晶粒尺寸在120～140μm之间,随卷取时间的增加,成品晶粒尺寸增大。成品织构主要由γ纤维、а纤维和高斯织构等构成。随着保温时间的增加,{111}<110>和{112}<110>织构强度降低。随卷取时间的增加,成品P1.5降低。热轧板最佳的卷取工艺为550℃保温2～3 h,电工钢的综合磁性能优良。 The effects of hot-rolling coiling time on microstructure,texture,core loss and magnetic induction of a new cold-rolled non-oriented electrical steel containing copper were investigated.The test results showed that for final product the grain sizes are 120-140um,with the increase of coiling time,the grain size increase.For final product there are mainly γ-fibre,а-fibre,and {110}<001> texture,Coiling at 550℃ for hot rolled plate,the {111}<110>,{112}<110> texture was weaked with ... 

目的提高硅钢的磁性能。方法采用多弧离子镀技术,在普通取向硅钢薄板两面沉积高硅FeSi合金层制得高硅梯度硅钢,并进行热处理,观察其显微组织,测量磁性能。结果退火态高硅梯度硅钢表面的高硅FeSi合金层与基底结合紧密,均匀致密。高硅梯度硅钢中硅含量呈梯度分布,最表层硅质量分数为11.0%,随着深度增加,硅含量逐渐降低,在距表面20μm处硅质量分数仍能达到6.5%。沉积态高硅梯度硅钢的电阻率ρ、低频铁损P10/50、高频铁损P10/1k及磁感应强度B8分别为68.6μΩ·cm,0.82W/kg,83.3 W/kg和1.73 T,退火后分别为63.1μΩ·cm,0.44 W/kg,54.38 W/kg和1.89 T。结论由于表层高硅FeSi合金层的存在,梯度高硅钢的低频磁学性能良好,但高频损耗需进一步改善。 Objective To improve the magnetic properties of silicon steel. Methods FeSi alloy coatings with high-silicon content were deposited on the surface of common grain-oriented silicon steel by cathodic arc plasma evaporation,and then a kind of high silicon gradient steel was prepared. The morphologies,content and magnetic properties of the samples were tested. Results FeSi alloy coatings were featured with compact microstructures and excellent adhesive quality with the substrates. The silicon conten... 

本发明特别涉及一种中频用取向硅钢极薄带及其钢基板的制备方法，属于硅钢极薄带制备技术领域，方法包括：将硅钢原料进行冷轧，获得硅钢薄带；将硅钢薄带进行退火，退火采用至少3段式连续退火工艺，获得钢基板；采用本法制得的钢基板制备的中频用取向硅钢极薄带具备优良的磁性能和板形，采用多段式退火，获得稳定的成品性能，制造工艺简单，可实施性高，采用无底层取向硅钢作为母材，节能环保，产品表面质量好，产品可满足中频条件下(≧400Hz)的使用要求。

本发明提供一种硅锰镇静无取向硅钢冶炼方法。该无取向硅钢化学成分质量百分比为C≤0.005％，Si：0.25％‑1.20％，Mn：0.2％‑0.8％，P：0.015％‑0.065％，S≤0.005％，Als≤0.005％，余量为Fe及不可避免的杂质。其生产方法包括转炉出钢结束加石灰、渣面脱氧剂调渣；RH真空精炼脱碳结束后进行脱氧合金化，合金化后3‑5min由真空室料仓加入合成渣，处理一段时间后净循环8‑12min，破空出钢运至连铸浇注。得到钢水中主要为SiO2‑CaO‑Al2O3系夹杂，一方面避免了钢水中生成低熔点SiO2‑MnO系夹杂，轧制过程沿轧制向伸长，阻碍晶粒长大；另一方面也避免了生成纯SiO2或高SiO2组分类酸性夹杂，导致冶炼过程耐火材料的严重侵蚀。本发明可控制钢中非金属夹杂物类型，提高钢水洁净度，改善冶炼过程中对耐火材料的侵蚀。

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 ... 

本发明涉及卷取领域，具体涉及硅钢卷取机卷筒结构，包括机架、收卷辊和按压捆绑机构，按压捆绑机构位于收卷辊一侧，按压捆绑机构包括按压单元和捆绑单元，捆绑单元包括捆绑辊、转动辊、成卷的胶带和两个滑块，两个滑块均滑动设置于机架上，滑块的下端固定有能与机架相抵的下卡块，捆绑辊固定设置于两个滑块之间，捆绑辊上设有凹槽；按压单元包括两个按压部，每个按压部包括按压管和弹簧，按压管通过弹簧与凹槽的侧壁连接，转动辊设置于按压管内，成卷的胶带套设于转动辊上，凹槽的侧壁设有供胶带通过的通槽。采用本技术方案时，有利于避免成卷的硅钢卷松动且能对硅钢卷进行捆绑。

本实用新型涉及变压器铁芯生产技术领域，尤其涉及一种硅钢片卷自动上料装置。包括所述底座上方设置有支撑座，所述支撑座上方转轴连接有翻转座，所述翻转座前后两侧设置有支撑柱，所述托架底部前后两侧设置有支撑套，所述支撑套对应滑动连接在支撑柱上，所述支撑套左侧上方设置有凸台，所述凸台右侧在支撑套上方设置有卡槽，所述卡槽右侧开口，所述硅钢带卷设置在卡槽内部，将钢卷平躺放置在托架的卡槽内部，通过翻转液压缸可将托架和钢卷进行树立，钢卷一侧靠在托架上，钢卷树立过程比较平稳，通过三组液压缸可实现钢卷自动上料的过程，在钢卷树立过程中，可通过绳索将钢卷固定在托架上。

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.... 

分析了太原钢铁(集团)有限公司第二炼钢厂80 t RH生产冷轧硅钢脱碳、脱硫原理及影响因素,认为通过合理控制RH到站钢水碳和氧含量、加大插入管内径、采用快速抽真空度等可提高脱碳效果。降低顶渣中FeO和MnO含量,保证脱硫剂加入后的循环时间可以提高RH脱硫率。 The present article analyzes the principle of decarburization and desulfurization in refining the cold rolled silicon steel in the 80 t RH in No.2 Steelmaking Plant of Taiyuan Iron & Steel(Group) Corp.,and its influencing factors.It’s determined that the decarburization effect can be achieved by properly controlling the cabon and oxygen contents in the hot metal coming into the RH station,enlarging the inner diameter of snorkel and adopting the fast evacuation method.In the meanwhile the des...