硅钢资料

本发明公开了一种用于无取向硅钢清洗液的洁净度检测分析方法，包括以下步骤：步骤1：从清洗液循环槽中取含有污物的清洗液样品，并进行脱水、烘干、研磨，得到污物粉末样品；步骤2：根据含有污物的清洗液样品和污物粉末样品计算清洗液循环槽中清洗液的洁净度；步骤3：根据含有污物的清洗液样品的洁净度建立清洗液洁净度评定标准；步骤4：根据清洗液洁净度评定标准控制含有污物的清洗液的排放和换液。本发明能简便且直观的了解当前清洗段循环槽内清洗液的状态，并可以根据清洗液的洁净度评级对清洗液的使用和排放做出及时的在线调整。

绝缘涂层可以有效提高硅钢片的耐蚀、耐腐、磁、绝缘等性能，因此取向硅钢涂装绝缘涂层是取向硅钢生产过程中重要的一环。本文对取向硅钢含铬无机绝缘涂层以及氮化铬涂层的性能优缺点进行了介绍，并对国内无机含铬取向硅钢绝缘涂层及氮化铬涂层的研究现状进行了综述。最后对未来含铬无机绝缘涂层的研发方向进行了展望。 Insulation coating can effectively improve the corrosion resistance of silicon steel sheet, such as corrosion, magnetic, insulation performance, thus oriented silicon steel insulation coating is the important part of oriented silicon steel production process. In this paper, the inorganic insulation coating oriented silicon steel containing chromium and chromium nitride coating performance advantages and disadvantages are introduced.In addition, the research status of insulation coating and chrom... 

一种超低硫硅钢冶炼工艺方法，属于炼钢技术领域。本发明公开了一种超低硫硅钢冶炼工艺方法，主要步骤包括KR铁水预处理—转炉冶炼—RH真空精炼—连铸保护浇注。在冶炼超低硫硅钢前，铁水包、转炉先处理1‑2炉低硫钢种，清洗设备；KR脱硫采用三次扒渣法，第一次扒除高炉出铁带渣，将铁水S含量脱至目标值后进行第二次扒渣，然后开通铁水包底吹，软吹后进行第三次扒渣，脱S后铁水S≤0.0005％，铁水兑入转炉后，热态下清理铁包结渣；转炉使用硫含量小于35ppm的低硫废钢，且废钢比不超过15％；RH和连铸过程均使用低硫合金及原辅料。本发明可使连铸结晶器钢水中S含量小于15ppm达标率由原来的48.6％左右提高至95％以上。

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... 

基于BOF→RH→CSP生产工艺,研究了RH精炼过程钢中夹杂物类型演变及MgO·Al2O3夹杂物形成规律,同时对MgO·Al2O3夹杂物的形成条件进行了热力学计算,借助CFD数值模拟软件研究了RH精炼过程卷渣行为。研究发现,RH精炼过程20和30 min时,w([MgO])/w([Al2O3])为0.005~0.020,未发现MgO·Al2O3夹杂物;RH出站后夹杂物w([MgO])/w([Al2O3])为0.3~0.5,且RH精炼结束后MgO·Al2O3夹杂物占夹杂物总量的58.4%;另外,RH精炼过程钢液表面速度CFD模拟结果为0.57 m/s,大于临界卷渣速度0.45 m/s,且顶渣成分与夹杂物成分相近,存在卷渣现象。热力学计算表明,钢液与炉渣平衡时钢中w([Al])为0.31%~0.37%,w([Mg])为0.00024%~0.00028%,在MgO·Al2O3生成区域之内。减少RH处理过程卷渣,浇铸过程下渣及控制顶渣和包衬相中MgO质量分数可抑制MgO·Al2O3夹杂物形成。 Based on the practical production of non-oriented silicon steel, the evolution of inclusion type and the formation of MgO·Al2O3inclusion were analyzed in the process of BOF→RH→CSP. The thermodynamic conditions for forming MgO·Al2O3inclusion were discussed and the behavior of slag entrapment of molten steel was also simulated by CFD software during RH refining. The results showed that the value of w([MgO])/w([Al2O3]) was in the range of 0.005-0.020 and no MgO · Al2O3 inclusion was observed at 20 ... 

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 ... 

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... 

本发明属于取向硅钢制备技术领域，具体涉及一种软磁材料取向硅钢退火工艺。所述退火工艺主要包括：涂覆隔离剂、按照一定速率升温后进行保温，以5‑10℃/min的速率进行降温；在降温过程中施加恒定磁场，之后继续降温即可实现。该退火工艺能够有效降低铁损失，提高磁感强度。同时具有较好的耐腐蚀性能和机械性能。

本实用新型公开一种具有硅钢片定位结构的变压器，包括：变压器箱体，其内部具有安装硅钢片铁芯的安装区域；多个定位销布置于安装区域的四周，且滑动安装于变压器箱体的内部底壁上；多个定位导块分别对应的活动式插接于每个定位销上，定位导块朝向安装区域的侧壁设有第一凹槽，定位导块的底部设有第二凹槽，第二凹槽与定位销配合嵌入弹性卡接；多组抵接组件，分别对应的安装于多个定位导块上，抵接组件包括弹性件和半球形块，半球形块与第一凹槽过渡配合，弹性件用于半球形块与硅钢片铁芯弹性抵接。从而通过该变压器的定位结构不仅可对不同型号大小的硅钢片铁芯进行定位，便于硅钢片铁芯散热的同时，也便于取出硅钢片铁芯。

从影响高牌号无取向硅钢退火工艺的主要参数入手,介绍高牌号无取向硅钢退火炉在加热、气氛控制、冷却、涂层烘烤方面的新技术,并展望无取向硅钢退火炉的发展方向。 Based on the technology parameters of high-grade non-oriented silicon steel annealing,the new technology of the annealing line,which includes heating,atmosphere control,cooling,coating baking,is introduced,and the development direction of non-oriented silicon steel annealing furnace is pointed out. 

本发明公开了一种变压器用硅钢片冲切设备，包括输送机、双向冲压机构、缓冲抬升机构和磁吸式清洁器四部分，输送机的末端安装有支撑架，双向冲压机构安装于支撑架上且由驱动机构、导向板、冲压头、连接器和冲切刀片组成，驱动机构的底部垂直安装于导向板的中部，导向板的两端与支撑架相连接，冲压头分设有两组且对称滑动设置于导向板上，驱动机构的两端与两组冲压头相连接，连接器安装于冲压头的末端，两组连接器的下端与冲切刀片的上沿转动连接。本发明所设计的冲切设备采用全自动运作的方式，并且配合有缓冲式的冲压机构，可以减小冲切过程中的形变率，整个机体的运作通过PLC控制器进行控制运作，提高装置的智能化程度。

通过对3%Si CGO硅钢进行恒变形速率、不同变形温度下的单道次压缩实验,结合Thermal-Calc软件,金相分析,SEM及EBSD技术,研究了取向硅钢热变形过程中组织和微观织构的变化规律。结果表明:实验钢是在双相区变形,变形后组织主要是铁素体和少量的珠光体。随变形温度的升高,晶粒由长条状变为等轴状,尺寸逐渐变大;CGO硅钢在热变形过程中立方{100}<001>取向是较为稳定存在的。随着变形温度的提高,{111}<110>等取向逐渐转向{110}<1 10>取向,且{110}<1 10>取向逐渐变得锋锐。 3% Si CGO silicon steel was studied at constant strain rate and different deformation temperatures by single-pass compression deformation experiments to reveal the evolution of microstructure and texture during thermal deformation in oriented silicon steel,and the Thermal-Calc software,metallurgical,SEM and EBSD technique was used in the experiment. The results show that experimental steel is deformed at the temperatures of two-phase zone. The microstructure of the deformed steel consists of fer...