钢厂
硼酸对无铬无取向硅钢涂层性能的影响
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 ...
电动汽车电机用电工钢疲劳性能测试技术研究
电动汽车电机在高速旋转时承受离心力和电磁力的作用,在进行电机转子设计时,既要考虑电磁性能,还要考虑机械性能。对电机转子受力情况进行了综述,分析了转子用电工钢疲劳性能参数的重要性,详细阐述了试样抛光、表面处理、试样的对中和安装对测试结果的影响。 The motor of electric vehicle bears big force for high speed rotors,mainly including centrifugal and electromagnetic forces.The magnetic and mechanical aspects of the electrical steel are crucial to machine design.In this paper,the forces applied on the motor were summarized and importance of fatigue properties was analyzed.The influence of specimen polish,surface treatment,alignment and installation on fatigue testing result were represented in detail.
热轧无取向低硅钢SGG的研制开发及生产
针对川威950的工艺现状,结合无取向低硅钢SGG生产的工艺特点,主要从控制其钢坯加热和轧制以及终轧温度和卷曲温度几方面入手,进行无取向低硅钢生产的工艺控制研究。同时根据近6000吨的生产实践表明,该工艺措施能很好的满足该钢种的需要。 950 process Chuanwei status quo,with non-oriented silicon steel production process features low,mainly from the control of billet heating and rolling and finish rolling temperature and coiling temperature of several aspects,for non-oriented silicon steel production process of low control at the same time According to nearly 6,000 tons of production practice shows that the process measures could well meet the needs of the steel.
CN202110083086.9一种无铝低合金无取向硅钢氧含量控制方法
本发明提供一种无铝低合金无取向硅钢氧含量控制方法,属于钢铁冶炼技术领域。该无取向硅钢化学成分按质量百分比为C≤0.005%,Si:0.2%‑0.6%,Mn:0.20%‑0.50%,P:0.03%‑0.08%,S≤0.005%,Als≤0.005%,余量为Fe及不可避免的杂质。其工艺流程为:KR铁水预处理→转炉冶炼→RH真空精炼→连铸。转炉出钢严格控制下渣量,加石灰、萤石、高铝渣面脱氧剂控氧调渣;RH真空精炼脱碳结束后,加低碳低硫硅铁、金属锰、磷铁等脱氧合金化,循环5min后,再加入金属铝终脱氧,同时向钢包渣面加入高铝渣面脱氧剂对炉渣进行脱氧,成分全部达标后净循环时间≥8min,破空、出钢;连铸进行全程保护浇注。使用本发明提供的操作方法,可以得到自由氧含量≤15ppm,总氧含量≤35ppm的钢水,提高钢水洁净度。
CN202123117670.6一种变压器铁芯硅钢片纵剪滚切装置
本实用新型公开了一种变压器铁芯硅钢片纵剪滚切装置,包括纵剪机本体、弹性压覆机构和涂油机构,所述纵剪机本体的进料端设置有弹性压覆机构,料带通过弹性压覆机构压覆在纵剪机本体的支撑平台上,所述支撑平台上凹设有安装凹槽,所述安装凹槽内设置有涂油机构,所述涂油机构朝向于料带的底面涂油,通过涂油机构对板材的切割面进行涂油,能够对料带起到润滑和冷却的作用,提升料带切割质量。
CN202121309511.3一种定子铁心硅钢片固定结构
本实用新型提供一种定子铁心硅钢片固定结构,包括硅钢片堆叠结构、扣片,所述硅钢片堆叠结构由多个硅钢片层层堆叠而成,所述硅钢片沿边缘处设有多个凹槽,多个硅钢片堆叠后,其凹槽形成一条条通槽,所述扣片扣在通槽上,其扣片的两端设有弯折面将硅钢片堆叠结构的两端卡住,利用扣片的方式进行硅钢片固定,减少硅钢片导通现象,达到减少涡流损失的目的,扣片有极易更换的方便性,可轻易改变硅钢叠片的厚度,只需要更换扣片长度即可。
我国硅钢发展现状及发展趋势
硅钢是钢铁产品中的\"工艺品\",是高附加值产品,通过对我国主要硅钢生产厂家的工艺设备,市场情况分析,简要介绍了我国硅钢生产消费现状,未来生产能力预测及硅钢未来发展趋势。 Silicon steel is the \"crafts\" of steel products,also is high value-added product.By analyzing process equipment and market condition of major silicon steel-making plant of China,it briefly introduces our current production consumption status,future production capacity prediction and future development trend of silicon steel.
CN202110857928.1一种控制边部翘皮的热轧电工钢的生产方法和生产系统
本发明特别涉及一种控制边部翘皮的热轧电工钢的生产方法和生产系统,属于钢表面质量检测技术领域,方法包括:建立热轧电工钢边部翘皮的数据库,数据库包括翘皮类型及各翘皮类型的翘皮发生原因和翘皮发生的区域;对待质检的热轧电工钢表面进行识别,并对比数据库,获得待质检的热轧电工钢表面翘皮的翘皮类型;根据待质检的热轧电工钢表面翘皮的俏皮类型获得该类型翘皮的翘皮发生原因和翘皮发生的区域;根据翘皮发生原因和翘皮发生的区域,调整生产操作,用以减少热轧电工钢的边部翘皮;通过对边部翘皮进行准确分类及识别,能够准确的分辨出边部翘皮的产生原因,采取有针对性的措施防止缺陷扩大,最大程度的降低缺陷发生量,提高质量控制水平。
高效电机用冷轧无取向电工钢退火板析出物的析出特征研究
通过热力学计算,分析了实验钢中主要析出物析出的可能性。结果表明:在液相和固液两相区中,AlN和MnS均不能析出;在奥氏体区,AlN和MnS具备热力学析出条件,平衡析出温度分别为1547、1582 K。成品退火板中的析出物主要为AlN和MnS。扫描电镜下观察到的AlN形貌多为长条状,MnS形貌多为棒状或近似球形。这两种析出物占了析出物总量的85%以上,尺寸集中分布在400~800nm;复合析出物主要是(Al2O3+MnS)和(AlN+MnS),形貌不规则,尺寸集中在0.7~1.5μm;透射电镜下观察到了少量100nm以下独立的AlN析出。 According to thermodynamic calculation, the precipitation probability of precipitates was analyzed, AlN and MnS can not precipitate in liquid phase area and solid-liquid two-phase area. In austenite area, both the AlN and MnS have precipitation condition in thermodynamics and precipitates at 1547 K and 1582 K, respectively. The precipitates in annealing plate are mainly AlN and MnS. The shape of AlN is mostly strip, and MnS is stick or near sphericity. They accounted for over 85% of the total qu...
冷轧电工钢森吉米尔轧机研究进展
森吉米尔二十辊轧机是冷轧电工钢的主要机型,具有整体刚度大,辊径小,轧制道次压下量大,产品精度高等特点,简要介绍了近年来冷轧电工钢森吉米尔二十辊轧机领域进展,在轧机结构、厚度自动控制、板形自动控制等方面的技术及研究。 20-h Sendzmir reversible mill is the main type of cold rolled electrical steel which has the characteristic of high integral stiffness,small roller diameter,high pass reduction and high product quality.In this paper,the recent progress of frame structure,automatic gauge control,automatic flatness control of Sendzmir mill is introduced.
硅钢DR510生产工艺优化
本文对某厂硅钢DR510温度、成分及过程控制水平和成品的组织、力学性能进行了研究,并在此基础上提出了工艺优化方案,有一定的借鉴和推广价值。 In this paper,the critical process and the products quality,including temperature,composition and process controlling level,the organization and mechanical properties of the finished product,were studied.On the basis of that the optimized technical plan provided,and this control technology is worth using and spreading.
CN202120368631.4一种具有在线测量功能的电工钢片横剪线
本实用新型涉及一种具有在线测量功能的电工钢片横剪线,包括床身,床身上沿其长度方向安装有导轨,电工钢片在外部驱动辊带动下以导轨为导向移动;位于导轨一端端头外部的床身上安装有测量辊组件,位于导轨另一端处的床身上安装有影像测量组件;测量辊组件、导轨和影像测量组件的中心位于同一直线上,影像测量组件横跨设置于导轨上方;位于测量辊组件和影像测量组件之间的床身上依次安装有冲孔组件、V冲组件和斜剪组件;本实用新型通过测量辊组件对电工钢片行进长度进行检测,通过影像测量组件对电工钢片成型尺寸进行检测,从而便利于及时调整横剪线整体的运行状态,有效助力于保证合格率,并降低了人工负担。