硅钢资料

本发明公开了一种取向硅钢极薄带的工业连续化生产方法，包括异步轧制、脱脂、热处理、急速冷却、涂绝缘层、烘干烧结、卷带收集各工序；其中，异步轧制中使用异步比为1：1.05～1：1.24；脱脂、热处理、急速冷却、涂绝缘层、烘干烧结、卷带收集工序为连续化生产工艺；热处理工序中，第一步为预热，预热温度为500℃～700℃，预热时间4秒～120秒；第二步为相变热处理，相变热处理温度为820℃～920℃，相变加热时间100秒～600秒；急速冷却工序中，钢带30秒内降温到350℃以下。优点在于：实现工业化连续生产取向硅钢极薄带，有效提高产能，生产的取向硅钢极薄带制备高磁感、低铁损等磁性能。

取向硅钢因其高磁导率、低矫顽力和大电阻系数等特性，被广泛应用于大中型变压器和大型电动机铁芯的制造。因取向硅钢性能和成分控制严格，生产工艺复杂，故其产品代表了钢铁企业特殊钢生产的最高水平。本文介绍了新钢公司卷板厂1580热连轧线生产取向硅钢过程中出现的窄尺问题，研究了取向硅钢产品的特点，分析了热轧过程中的组织转变，并结合生产实际提出了改进措施。通过对加热炉钢坯加热模式、粗轧轧制策略、精轧轧制工艺、二级模型等方面的优化和改进，取向硅钢窄尺情况明显好转，提高了产品的成材率和市场口碑。 The oriented silicon steel is widely used in the iron core manufacture of large and mediumsized transformers and large motors because of its high permeability, low coercivity and large resistance coefficient. Due to the performance and composition control of oriented silicon steel is strict, the production process is complex,therefore, its products represent the highest level of special steel production in iron and steel enterprises. This paper introduces the problem of narrow gauge in the produ... 

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... 

【作者】 陶永根； ...

研究了应用电感耦合等离子体质谱法(ICP-MS)测定硅钢中痕量铜和镍的分析方法。采用硝酸分解样品,通过内标校正和基体匹配消除了基体干扰的影响,同时根据测量时存在的质谱干扰情况,选择同位素65Cu和60Ni作为测定元素和通过调节仪器参数使双电荷离子的产率最低,以减少带来的干扰。该方法用于硅钢中痕量铜和镍的测定,所得的结果与ICP-AES法测定结果完全吻合,各元素测定结果的RSD值小于5%,加标回收率为97.3%～100.3%。 A method for the determination trace copper and nickel in silicon steel by inductively coupled plasma mass spectrometry(ICP-MS) was studied.The samples were dissolved in HNO3.The effect of matrix interference was eliminated by internal standard correction and matrix matching.Meanwhile,according to the mass spectral interferences in determination,the isotopes including 65Cu and 60Ni were used as measuring elements.The yield of double-charge ions were minimized by adjusting instrumental parameters... 

本发明公开了一种硅钢冷连轧轧制过程温度获取方法、装置及电子设备，通过获取硅钢冷连轧生产过程的工业参数数据以及各机架间硅钢的实际温度测试数据，然后基于工业参数数据以及预设初始模型，确定硅钢冷连轧生产过程的温度预测模型，接着基于硅钢轧制前的预热温度以及温度预测模型，得到硅钢冷连轧轧制过程各机架变形区出口与下一机架变形区入口之间的预测温度数据，再将预测温度数据与实际温度测试数据进行对比，并根据对比结果中的温度差异值对相应机架间的乳化液参数进行修正，直至温度差异值小于预设阈值，得到修正后的温度预测模型，能够用于实现硅钢冷连轧轧制过程中，任意采样点硅钢温度的获取。

针对硅钢连续退火机组的主要能源介质消耗现状,对现有生产工艺和设备研究采取机组循环用水、增加清洗段漂洗级数等措施可节约大概27 m3/h的过滤水量,并可减少78%的弱碱处理量;将炉子烟气换热系统增加一级余热回收,每年回收的余热相当于583 t标煤消耗,可节约蒸汽5 368 t。 The present situation of energy consumption for silicon steel annealing line is analyzed in this paper.In existing process and equipment conditions,increasing the number of cleaning series will lead to a saving of about 27 m3/h of filter water and reduce 78 % of weak base processing volume.For the flue gas heat-exchange system,adding a waste heat recovery device will recover waste heat equivalent to 583 tons of standard coal per year,corresponding to a saving of steam 5 368 t per year. 

【机构】 武汉钢铁学院轧钢七二级电工钢结业小组； ...

为研究退火工艺对普通取向硅钢初次再结晶组织的影响,对经不同温度、保温时间和升温速率退火后的材料组织进行了分析。结果表明:在等温退火条件下,加热至600℃时开始发生初次再结晶,800℃以上初次再结晶组织发展完善;而在最终冷轧板直接进行最终高温退火的情况下,加热温度在500～700℃时,将升温速率提高到80℃/h,初次再结晶组织更易于发展完善。 To investigate the influence of annealing process on the recrystallization of common grain oriented silicon steel,microstructures of sheets annealed at different temperature,soaking time and heating rate are observed.Results show that under the condition of isothermal annealing,recrystallization begins at 600℃ and fully develops above 800℃,while in the case that the final cold rolled sheets are directly thrown to final high temperature annealing,recrystallization is likely to develop with the he... 

本实用新型涉及一种硅钢片胶带缠绕机，包括底座、动力单元、夹紧装置和胶带缠绕装置。其中，夹紧装置设于底座上，被配置为适于夹紧硅钢片组。进一步，夹紧装置上设置有周向滑槽，周向滑槽沿硅钢片组的外周设置，胶带缠绕装置与动力单元连接，并可滑动地连接于周向滑槽内。动力单元工作能够带动胶带缠绕装置沿周向滑槽移动，以将胶带缠绕于硅钢片组的外周，完成硅钢片组的定型封装。胶带缠绕过程中，无需人工操作，实现了硅钢片组的自动封装，代替了传统的人工封装，大大降低了操作人员的工作强度，提高了硅钢片的封装效率。

本发明提供一种无取向硅钢用涂层溶液及其制备方法和应用，以所述无取向硅钢用涂层溶液的总质量为基础计，所述无取向硅钢用涂层溶液包括如下质量百分含量的原料组分：磷酸盐溶液55％～60％；树脂溶液20％～25％；二乙二醇丁醚2％～4％；改性剂3％～5％；余量为水。由本发明所述无取向硅钢用涂层溶液形成的绝缘涂层厚度均匀，表面光滑，具有优良的绝缘性、耐腐蚀性、附着性，而且硅钢片的冲片性能好、叠片系数高。

采用双辊连铸工艺制备了硅的质量分数分别为0.5%,1.0%,3.0%,4.5%的硅钢薄带,用光学显微镜观察其组织,并研究了后处理工艺对薄带组织和性能的影响。结果表明:硅含量为0.5%和1.0%的薄带适合采用一次冷轧+850～950℃退火的后处理工艺,而硅含量在3.0%以上的薄带适合采用二次冷轧+950℃退火的后处理工艺;硅含量为3.0%和4.5%的薄带在冷轧并950℃退火后,其磁性能最佳,铁芯损耗约为4.30 W·kg^-1,磁感应强度约为1.68T。 Silicon steel thin strips with silicon content of 0.5wt%,1.0wt%,3.0wt%and 4.5wt%were prepared by twin-roll continuous casting process,and the microstructure of the strips were observed by means of optical microscopy,and on the basis,the effect of post-treatment process on microstructure and properties of the strips was studied.The results show that the post-treatment process of one-time cold rolling and annealing between 850—950℃was suitable for the strips with silicon content of 0.5wt%and 1.0wt...