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无氧化炉具有加热效率高、投资与运营成本低、作业率高、表面质量及板型良好、NOx排放相对低等优势,在硅钢热处理领域应用前景广泛。本文阐述了确定无氧化炉(NOF)加热能力详细过程,涵盖炉温、炉断面尺寸、炉长、热平衡结算、加热能力计算等,为今后无氧化炉(NOF)在硅钢热处理应用时的设计提供了借鉴,同时也为今后明火直接加热的工业炉设计提供了参考。 Non-oxidation furnace has the advantage s of high heating efficiency, low investment and operation cost, high operation rate, good surface quality and plate shape, and relatively low NOxemission,and it still has wide application prospect in the field of silicon steel heat treatment. The detailed process of determining the heating capacity of a non-oxidizing furnace(NOF) is described, covering furnace temperature, furnace section size, furnace length, heat balance settlement, heating capacity cal... 
2022-01-28 171 5.8

一种基于临界变形制备高强度无取向电工钢的方法,按以下步骤进行:(1)按电工钢成分真空精炼钢水,连铸制成连铸坯;(2)在900~1100℃热处理30~120min,然后热轧制成热轧板;(3)冷轧冷轧板;冷轧板厚度为目标厚度+(0.01~0.1)mm;(4)在400~700℃进行一次退火处理,在850~1200℃进行二次退火处理;(5)酸洗去除氧化层,然后进行温轧或二次冷轧进行临界变形。本发明的方法利用位错强化机制采用临界变形提高无取向电工钢的强度的原理,利用一次退火二次退火进行一次调控织构并临界变形对织构二次调控的方法增加对磁性能有利的再结晶织构来优化磁性能,该生产方式工艺简单,成本较低,生产效率高,适用于大批量生产。
2021-01-11 171 6.8

取向硅钢热轧板中织构梯度对发展完善的二次再结晶十分关键,通过添加铜可以显著降低取向硅钢板坯加热温度,从而影响热轧板织构分布。利用X射线衍射仪,分析了实验室模拟薄板坯连铸连轧(TSCR)工艺的3种不同铜含量的取向硅钢热轧板织构。结果表明:不同铜含量热轧板表面到厚度1/4处均为弱的热轧织构,热轧板心部主要为{100}面织构;铜含量约在0.4%时,热轧板次表层的{110}<001>织构比例最高,而热轧板心部的{100}<110>织构比例最低;铜含量对热轧织构中{114}<110>和{001}<100>织构发展有显著影响。 The texture gradient in hot rolled grain oriented silicon steel strip is one of the essential factors to achieve a perfect secondary recrystallization.The addition of copper can significantly reduce the slab reheating temperature of grain oriented silicon steel,so as to impact the texture distribution in the hot rolled strip.The texture of hot rolled grain oriented silicon steel strip as-rolled by thin slab casting and rolling process(TSCR) in laboratory with three different copper contents was ... 
2011-01-28 171 5.8

本实用新型公开了一种取向电工钢的多项性能检测装置,涉及取向电工钢技术领域,为解决检测装置在对取向电工钢涂层性能检测时较为繁杂,增加了检测难度,检测的误差增加,且检测装置的性能检测较为单一,检测效果不佳的问题。所述底座的上方设置有安装架和吊梁架,所述安装架上设置有输料辊,输料辊设置有两个,两个所述输料辊之间设置有输送带,所述吊梁架的下方设置有弹性胶带,所述弹性胶带上方的两侧均设置有第三电动伸缩杆,且第三电动伸缩杆的两端分别与吊梁架和弹性胶带通过螺钉连接,所述弹性胶带的一侧设置有检测架,所述检测架上设置有激光灯、第一滤光片、接收器、第二滤光片和聚光片,所述激光灯和第一滤光片设置在弹性胶带的上方。
2021-11-24 171 6.8

本发明揭示了一种无取向硅钢及其生产方法。所述生产方法包括:按照Si0.8~1.1%、Mn0.2~0.4%、不添加Sn和Sb进行炼钢,并制坯;将铸坯加热到1060~1120℃并保温150min以上,而后轧成厚度40~45mm的中间坯,再经精轧、卷取得到厚度为3.00±0.25mm的热轧卷板,精轧开轧温度≤872℃+1000*(11*[Si]‑14*[Mn]+21*[Al]);精轧终轧温度≤820℃,卷取温度≤560℃;常化、酸连轧,得到厚度为0.500±0.005mm的冷硬卷,常化温度850~900℃;成品退火温度820~880℃,退火后经冷却、涂层和精整,得到无取向硅钢。
2021-06-17 171 6.8

阐述了国内外高磁感取向硅钢的生产研究水平与发展趋势,包括通过提高高斯晶粒取向度、细化磁畴、涂覆张力涂层、减薄钢片厚度进一步降低铁损以及低温加热技术和短流程技术新工艺。分析高磁感取向硅钢在我国大型电力变压器上的应用情况,结果表明,发展更薄规格高磁感、低铁损、低磁致伸缩取向硅钢可为大型变压器的安全性、节能性及环保性提供有效保障。 The research progress and development trend of high magnetic induction grain-oriented silicon steel at home and abroad are summarized,including the technology of improving the Goss alignment,refining domain wall,adding stress coating,decreasing thickness of sheet,and the new technique of reducing heating temperature of casting slab and shortening operational.Moreover,the application of high magnetic induction grain-oriented silicon in power transformer is presented.Developing grain-oriented sili... 
2014-11-28 171 5.8

介绍了国内无底层取向电工钢生产技术水平、产量和用途,简述了无底层取向电工钢作为取向电工钢超/极薄带母料及应用于制作大型发电机组铁心、风电等电机铁心和变压器铁心等的情况。 The production technology level,output and application of domestic glassless grainoriented electrical steel were introduced,and the application of glassless grain-oriented electrical steel as parent material of ultra-thin strip of grain-oriented electrical steel and in making large-scale electric generator cores,wind power motor cores and transformer cores were briefly described. 
2022-02-28 171 5.8

本发明公开了一种免常化中间退火的无取向电工钢板,其各化学元素质量百分含量为:0<C≤0.004%、Si:1.0~2.6%、Mn:0.2~1.0%、Al:0.2~1.6%、Ca:0.0003%~0.0035%,余量为Fe和其他不可避免的杂质。此外本发明还公开了上述无取向电工钢板的制造方法,其包括步骤:(1)冶炼和连铸,其中在该步骤不采用电磁搅拌;(2)热轧,其包括:粗轧、精轧、卷取和保温;其中控制粗轧之后、精轧之前的中间坯温度≥950℃;(3)上述热轧步骤后不进行常化中间退火或罩式炉中间退火而直接进行冷轧;(4)连续退火。本发明所述的无取向电工钢板通过采用合理的化学成分和工艺设计,可以在保证较低生产成本的同时,获得高磁感和低铁损的特性。
2021-04-09 170 6.8

采用RH精炼添加钙合金方式对硅钢进行钙处理,结果表明,钙合金添加量为0.67、1.00和1.67 kg/t钢时,钢中Ca含量分别为0、2×10-6和4×10-(6质量分数);随着钙合金添加量的增加,钢中夹杂物粒度逐渐由0~2μm向2~4μm、4~6μm偏移;不同钙处理条件下,钢中均存在粒径小于1μm和粒径为1~5μm的MnS、CuxS夹杂物,后者或单独存在,或与AlN、CaS夹杂复合;钢中粒径为5~10μm的夹杂物基本以Ca的氧化物和硫化物为主。与未经钙处理的炉次相比,钙合金添加量为0.67、1.00和1.67 kg/t钢时,粒径小于1.0μm的夹杂物减少幅度分别为68.06%、87.50%和94.94%。钙合金添加量为1.67 kg/t钢时,可以去除钢中绝大部分的微细夹杂物。 In order to improve the properties of final silicon steels,the calcium treatment was adopted by adding Ca alloys into the liquid steel during the RH refining process.Results show that when the addition of Ca alloys is 0.67 kg/t,1.00 kg/t and 1.67 kg/t,the corresponding Ca content in silicon steels is 0,2 × 10-6 and 4 × 10-6 respectively.With the increase of Ca alloy addition,the particle sizes of inclusions in steels become 2~4 μm and 4~6 μm,from 0~2 μm.Under different calcium treatments,there e... 
2013-02-28 170 5.8

对低温加热工艺生产的以AlN为主抑制剂的高磁感取向硅钢高温退火过程进行中断实验,借助电子背散射衍射技术对高温退火过程中高斯晶粒的演变进行了研究.在升温过程中高斯晶粒平均尺寸先减小再增大.800℃时取向分布函数图出现高斯织构组分,但强度很弱,高斯晶粒偏离角在10°以上;900℃时高斯晶粒平均生长速率超过其他晶粒;950~1000℃时高斯晶粒异常长大,偏离角3°~6°;在1000℃之前高斯取向晶粒相比于其他晶粒没有尺寸优势. The high-temperature annealing process of high permeability grain-oriented silicon steel with AlN as an inhibitor was studied by interrupting test.The evolution of Goss texture in this process was analyzed by electron back-scattered diffraction.It is found that the Goss grain size first decreases and then increases with the rise of temperature.Goss texture appears in the orientation distribution function at 800 ℃,but the intensity is very weak and the deviation angle is more than 10°.The average... 
2014-03-28 170 5.8

利用光学显微镜(OM)和扫描电镜(SEM)研究了不同稀土Ce含量的50W470无取向硅钢的铸坯、热轧板和冷轧退火板的宏观和微观组织,并采用磁性能测试仪测定其磁性能。结果表明:当稀土Ce的加入量从0增加到66×10-6(质量分数)时,铸坯的柱状晶平均宽度从3.82 mm减小到3.24 mm,等轴晶率从43.1%增加到51.3%;热轧板的平均晶粒尺寸逐渐增加,从26.2μm增加到33.3μm,再结晶百分数从24%增加到37%;退火板的平均晶粒尺寸从36.2μm增加到39.3μm;磁性能测试表明,微观组织的变化有利于50W470无取向硅钢铁损降低和磁感提高。 Macro-structure and microstructure of as-cast plate, hot rolled plate and cold rolled annealed plate of 50 W470 non-oriented silicon steel with different rare earth Ce content was studied by optical microscope(OM) and scanning electron microscopy(SEM), and their magnetic properties were measured by magnetic property tester. The results show that when the addition amount of rare earth Ce increases from 0 to 66×10-6(mass fraction), the average width of columnar crystal of the as-cast pl... 
2022-03-28 170 5.8

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。
2021-12-13 170 6.8

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