钢厂
CN202023339783.6一种利于常化的硅钢缝合结构
本实用新型属于硅钢片加工技术领域,具体涉及一种利于常化的硅钢缝合结构,包括上层硅钢片、下层硅钢片和连接带,下层硅钢片的一端位于上层硅钢片的下方并与上层硅钢片叠合,上层硅钢片和下层硅钢片的叠合处开有多个排成直线的桥型孔,连接带依次穿过各个桥型孔并同时卡合在上层硅钢片和下层硅钢片上。本方案中,在上层硅钢片和下层硅钢片的叠合处开设桥型孔,利用连接带穿过上层硅钢片和下层硅钢片叠合处的桥型孔,相当于利用连接带将上层硅钢片和下层硅钢片缝合在一起,这样设置能够较好将上层硅钢片和下层硅钢片连接成一体。
CN202111291459.8一种提高超高磁感取向硅钢底层质量的退火隔离剂及其制备方法和应用
本发明公开了一种提高超高磁感取向硅钢底层质量的退火隔离剂及其制备方法和应用。本发明所述退火隔离剂包括如下组分:MgO、TiO2、硼酸、Na2O、Sb2(SO4)3;以MgO质量为标准,其余各组分相对MgO的质量百分数为:TiO21.9~40%,硼酸0.05~0.1%,Na2O1~5%,Sb2(SO4)31~5%。本发明制备的退火隔离剂提高了超高磁感取向硅钢的成材率;提高了取向硅钢的底层附着性,降低了产品让步率;制备的超高磁感的取向硅钢可满足高容量变压器的使用要求。
后天抑制剂获得法制取向硅钢析出物的转化规律
通过后天抑制剂获得法制备了取向硅钢,对渗氮前后和高温退火升温阶段析出物的析出和转化规律进行了研究。研究结果表明,渗氮前脱碳退火态基体中存在少量的粗大AlN颗粒和细小AlN颗粒,渗氮处理后新析出大量的Si3N4析出物,高温退火升温阶段Si3N4将转化为(Al,Si)N,随着温度的继续升高(Al,Si)N颗粒将发生粗化,(Al,Si)N是后天抑制剂获得法制备取向硅钢的主要抑制剂。 Grain-oriented silicon steels were produced by acquired inhibitor method.The rule of precipitate transformation was studied after nitriding treatment and high-temperature finishing annealing.The results show that a small amount of large AlN and fine AlN are found in matrix before nitriding treatment,and a large amount of Si3N4 is precipitated in matrix after nitriding treatment.During the temperature rising period of high-temperature finishing annealing,Si3N4 would transform into(Al,Si)N,and(Al,...
CN202022983402.1一种电工钢表面清洗装置
本实用新型公开了一种电工钢表面清洗装置,包括机架、第一传送链和叶片,所述机架的上端固定有顶板,且顶板的内部连接有加料杆,并且加料杆的上端内部设置有固定帽,所述顶板的侧面固定有第一电动机,且第一电动机的一端连接有丝杆,所述丝杆的外侧设置有电动推杆,所述第二转动轴的侧面连接有第二传送链,所述顶板的下端连接有连接架,且连接架的内部设置有第三电动机,所述连接架的底部设置有第二清洁杆,所述机架的内部开设有固定孔。该电工钢表面清洗装置,往加料杆的内部加入清洁液,清洁液会被加料干底部的海绵吸收,当料与加料杆的底部摩擦时,清洁液就会附着在料的表面,从而实现定量的往装置的内部加入清洁液。
CN202111088447.5一种消除取向硅钢热轧边裂的制造方法
本发明公开了一种消除取向硅钢热轧边裂的制造方法,通过成分设计、热轧加热和轧制参数优化等方面控制方面,有效解决取向硅钢热轧板边裂缺陷,提高材料的成材率,可以有效消除取向硅钢热轧板的边裂并能保证良好的成品磁性能。
低牌号无取向电工钢磁时效行为分析
选取了三种50W 800无取向电工钢,分析了化学成分、晶粒尺寸、织构、以及200℃时效处理48 h前后的磁性能和第二相粒子析出状态的变化。结果表明,钢板中第二相粒子的分布密度对钢板铁损有最重要的影响。降低钢中C、N元素含量,或改进钢板热加工参数以降低成品钢板中第二相粒子形成元素的过饱和度均有利于明显降低钢板磁时效过程中的铁损增幅。钢板中对磁性能有利的织构也有利于降低钢板铁损的时效幅度。 The evolution of chemical composition,grain size,texture,as well as magnetic property after aging treatment at 200 ℃ for 48 h and distribution of second phase particles precipitation in three selected 50W800 non-oriented electrical steels were analyzed.The results show that the distribution density of second phase particles has great influence on core loss.Reducing C and N content,or improving hot-working parameters to reduce the supersaturation of elements forming second phase particles in prod...
无取向硅钢磁性能提升技术进步及其发展动向
无取向硅钢的磁性能主要取决于铁素体的晶粒尺寸、晶体织构和钢中的夹杂物。通过合适的化学成分设计以及采用适宜的夹杂物控制技术,可以获得最佳的夹杂物控制效果,使其纯净度大幅度提高或者无害,最终获得磁性能优良的高级别无取向硅钢。同时,为满足节能、环保、高效需求,无取向硅钢正朝着节能降耗、环境友好以及多功能、高效率、易加工等方向发展。 The magnetic properties of non-oriented silicon steel mainly depend on the grain size of ferrite,the crystallographic texture,and the inclusions in the steel.The optimum inclusion control effects can be obtained through a suitable chemical composition design and an appropriate inclusion control technique,and then the liquid steel will get be clean or the inclusion will get be harmless,finally the excellent magnetic property of the non-oriented silicon steel can be obtained.Meanwhile,in order to ...
电感耦合等离子体质谱法测定硅钢中痕量铝钼钒钛铌
研究了应用电感耦合等离子体质谱(ICP-MS)同时测定硅钢中痕量铝、钼、钒、钛、铌元素的分析方法。通过条件试验对测量参数进行了优化,确定RF功率1 400 W,泵速30rpm,采样深度140,雾化压力0.90。样品采用硝酸分解,以Be、Y混合内标校正了测量过程中高基体引起的信号漂移。根据测量时存在的质谱干扰情况,选择同位素27 Al、98 Mo、51 V、47 Ti和93 Nb作为测定同位素,同时通过调节仪器参数使得双电荷离子和氧化物离子的产率最低,以减少其带来的干扰。采用基体匹配法配制校准溶液,以标准加入法建立工作曲线,并扣除试剂空白。该方法各元素的测定下限均可达到1μg/g。用于硅钢标准样品的测定,所得结果与参考值完全吻合,各元素的RSD小于5.2%。 A method for the determination of trace aluminum,molybdenum,vanadium,titanium and niobium in silicon steel by inductively coupled plasma mass spectrometry(ICP-MS) was described.A series of single parameter condition experiment was conducted.The optimized operation parameters with RF power 1 400 W,turbo pump rate 30 rpm,sampling depth 140 and nebulizer pressure 0.90 were obtained.The samples were dissolved by HNO3,and the Be and Y mixing internal standard were used to eliminate the signal drift c...
常化和退火工艺对冷轧无取向硅钢高频磁性能和强度的影响
冷轧无取向硅钢(/%:0.003C,2.35Si,0.22Mn,0.011P,0.002S,0.36A1,0.003 0N)经890℃或940℃3 min常化的2.3 mm热轧板冷轧成0.35 mm薄板。研究了常化温度和800920℃3 min退火对该钢高频(400Hz)磁性能和抗拉强度的影响。结果表明,830920℃退火时高频铁损P10/400值最低,随退火温度增加,晶粒尺寸增大,钢的抗拉强度降低;该钢的最佳热处理工艺为常化温度940℃,退火温度830℃,其抗拉强度Rm、高频铁损P10/400和磁感应强度J50分别为565 MPa,21.5 W/kg和1.69 T。 The cold-rolled non-oriented silicon steel(/%:0.003C,2.35Si,0.22Mn,0.011P,0.002S,0.36A1,0.003 0N) is cold-rolled to 0.35 mm sheet from 2.3 mm hot-rolled plate normalized at 890 ℃ or 940℃ for 3 min.The effect of normalizing temperature and annealing process at 800 920 °C for 3 min on high frequency(400 Hz) magnetic properties and tensile strength of the steel has been tested and studied.Results show that with annealing at 830 920 ℃the high frequency iron loss value P10...
无取向硅钢C6厚涂层性能的影响因素
本文介绍了无取向硅钢C6涂液的性能,研究了配水量、固化程度和涂层厚度等因素对无取向硅钢C6涂层性能的影响。结果表明,随着配水量的增加,完全固化所需的时间增加,涂液固体含量降低,涂层厚度减小;随着固化程度的提高,涂层硬度先增大然后趋于恒定,而柔韧性逐渐变差,在过固化后急剧恶化;涂层厚度对涂层的表面外观、附着性和绝缘层间电阻均有显著影响。 Based on the introduction about the performance of C6 varnish for non-oriented silicon steel sheets,effects of water amount,curing degree and coating thickness are discussed. Results show that with the increase of water amount,the time required to cure completely extends,and both the solid content of C6 varnish and the coating thickness decrease. As the curing degree increases,the hardness of the coating increases first and then tends to be constant,however the flexibility degenerates,especially...
还原分离-原子荧光光谱法分析硅钢中痕量汞的不确定度评定
用还原分离-原子荧光光谱法分析了硅钢中的痕量汞.分析方法的不确定度主要来自测量重复性,样品溶液浓度,工作曲线变动性,标准溶液,移取、配制标准溶液,仪器变动性等.文章分别对上述构成合成不确定度大小的分量进行了计算讨论. Trace mercury in silicon steel and galvanized sheet was analyzed by adopting reduced separation-atomic fluorescence spectrometry.The uncertainty of the analysis method mainly comes from measurement repeatability,sample concentration,working curve volatility,standard solution,pipetting and preparation of standard solution,and instrument variability,etc.The essay conducted all calculations and discussions on the above components that determine uncertainty.
CN202120753986.5一种硅钢卷、定子、转子铁芯、转子和盘式电机
本实用新型实施例涉及一种硅钢卷、定子、转子铁芯、转子和盘式电机,所述硅钢卷由多条硅钢条卷绕形成具有多层硅钢层结构,每条硅钢条均构成多层硅钢层,每条硅钢条所构成的多层硅钢层中,距离最近的两层硅钢层之间具有一层或多层其他硅钢条构成的硅钢层。该硅钢卷用作转子铁芯或定子时降低了层间涡流损耗。

