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研究了热处理工艺(退火温度、保温时间、冷却方式)对含Mn的Fe-6.5wt%Si高硅钢热轧带的显微组织及硬度的影响。结果表明,退火温度对Fe-6.5wt%Si合金的组织和显微硬度均有较大影响,随退火温度升高,平均晶粒尺寸和显微硬度均明显增大。小于1 h退火时,晶粒长大缓慢,而长时间(>1 h)退火时,一些次表层晶粒将发生异常长大。水冷组织比空冷组织略细小,但水冷显著降低了显微硬度。Mn含量提高能抑制850℃退火时晶粒的长大,并且促进退火后高硅钢的软化。 The influences of heat treatment process(annealing temperature,heating time,cooling methods) on the microstructure and microhardness of Fe-6.5wt%Si high silicon steel containing manganese for hot rolled strip were studied.The results show that the annealing temperature has a great effect on the microstructure and microhardness of Fe-6.5wt%Si alloy,and as the annealing temperature increases,the average grain sizes and microhardness will significantly increase.When annealing time for less than 1 h... 
2023-05-12 1.38k 5.8

本发明公开了一种硅钢含铬涂层废液处理过程中六价铬浓度在线监控方法,提出一种准确检测废液中六价铬含量的方法和检测时间的确定,实现了含铬废水原液中六价铬含量预测和焦亚硫酸溶液添加量的确定及六价铬在线检测预处理系统的启动时间的确定,确保处理装置安全高效运行。在酸化还原罐上安装氧化还原电位检测仪,实时检测含铬废液在整个处理过程中ORP的变化,推测含铬涂层废液中六价铬还原情况,初步判断还原过程的终点,为在线六价铬自动检测仪的启动提供依据,最终实现解毒后废液六价铬的含量低于0.05mg/L,达到六价铬含量超低处理的要求。
2021-02-24 136 6.8

本发明公开了一种高磁感取向硅钢,其含有Fe及不可避免的杂质元素,其还含有质量百分含量如下的下述各化学元素:C:0.02~0.08%,Si:2.0~4.5%,Mn:0.02~0.30%,S≤0.0050%,Als:0.01~0.04%,N:0.002~0.01%,Nb:0.0050~0.0600%;以及P:0.01~0.1%,Sn:0.01~0.30%,Cu:0.01~0.50%的至少其中一种。此外,本发明还公开了上述高磁感取向硅钢的制造方法,其包括步骤:(1)制得板坯;(2)板坯加热;(3)热轧,其包括:粗轧、在热卷箱内卷取保温,以及精轧;其中粗轧结束温度高于970℃;卷取温度为800~1050℃,卷取时间为30~200s;精轧开始温度低于1050℃;(4)冷轧;(5)脱碳退火;(6)渗氮;(7)涂覆退火隔离剂;(8)高温退火;(9)涂覆绝缘涂层和激光刻痕。
2021-10-19 160 6.8

结合工业化生产的50A1300牌号无取向硅钢,分析了化学成分、RH精炼脱氧方式、板坯装炉温度以及热轧平整工艺等对磁性能的影响,探讨成品钢磁性能的改善。结果表明,采取改善后,50A1300牌号无取向硅钢的磁性能得到明显改善。2012年,该钢种平均铁损、磁感应强度分别达到5.26 W/kg、1.762 T,能够较好地满足用户市场需求及同行对标需要。 Based on the industrial manufacture of 50A1300 grade non-oriented silicon steel sheets,effects of chemical composition,deoxidization method in RH vacuum refining,charging temperature of steel slabs,hot rolling and flattening progress on magnetic properties are analyzed.The optimization methods of magnetic properties of steels are discussed. Results show that the magnetic properties are obviously improved by the adopted measures above. In 2012,the average core loss and the magnetic induction of 5... 
2014-02-28 196 5.8

提出以“云边一体化架构”构建硅钢智慧决策系统,来解决原硅钢制造L1~L5系统架构模式下的数字信息孤岛、业务功能割裂等问题。在此基础上,开发了云边协同的自学习型控制模型及业务决策模型,构建起硅钢“智慧大脑”,形成了以研发、制造、服务等核心业务数字化融合的智能化决策支持新模式,探索出一条钢铁制造业数字化、智能化转型之路。 SIDS(Silicon-steel Intelligent Decision-making System)based on \"cloud-edge integration architecture\" was proposed to solve the problems of data silos and business function fragmentation in the original L1~L5 system architecture.On this basis,the self-learning control model and decision-making model of cloud-edge collaboration were developed,the \"smart brain\" of silicon steel department was constructed,and a new intelligent decision-making support model of digital integration of core businesses s... 
2022-02-28 196 5.8

【机构】 宝山钢铁股份有限公司规划与科技部; ...
2022-06-28 174 5.8

结合工业化生产的高效硅钢,进行了RH精炼稀土处理试验研究。针对不同的稀土处理条件,观察了夹杂物的形貌和尺寸分布,探讨了稀土处理后钢中的夹杂物形成、变化规律。结果表明:试验条件下,最佳的稀土合金添加数量为0.6~0.9 kg/t。经过合适的稀土处理后,可以有效抑制尺寸相对较小的、不规则的AlN、MnS复合夹杂生成,促进钢中微细夹杂物的聚合、上浮,钢质纯净度得到明显提高。此时,钢中全氧含量最低,脱硫效果最佳,钢中的夹杂物主要是尺寸相对较大的、近似球形或者椭球形的稀土类夹杂。 Based on the industrial production of non-oriented silicon steel,the experiment on RE treatment during the RH refining process was studied.The morphology and the size distribution were observed for the steel specimens treated with different RE treatment conditions.Further more,the formation and change of inclusions of final steel sheets after RE treatment were discussed.The results show that the suitable RE added amount was 0.6~0.9 kg/t.After the suitable RE treatment,the formation of AlN and Mn... 
2011-03-28 188 5.8

本发明公开了一种硅钢产品生产方案的智能设计评估方法,包括以下步骤:1、采集数据,并集成用户数据、实验室研发数据和大生产数据;2、构建用户数据主题、实验室研发数据主题和大生产数据主题;3、输入硅钢产品的种类、规格和性能需求的需求信息,并根据需求信息生成若干个硅钢产品的生产方案,生产方案包括优化产品的生产方案和新产品的生产方案;4、多维度综合评估步骤3中生成的每个硅钢产品的生产方案,得到硅钢产品生产方案的绿色设计指数,并根据绿色设计指数推荐生产方案。本发明基于产品设计需求,融合实验研发数据和大生产数据,生成并评估产品设计方案模型,缩短研发周期,提高研发效率。
2021-07-09 157 6.8

本发明公开了一种硅钢环形炉内罩的内圆直径自动检测装置及方法,该内圆直径自动检测装置包括设置在检测点地面上的水平工作台,设置在所述水平工作台上的水平调节机构,设置在所述水平工作台上的扫描机构,以及与所述扫描机构通信互联的检测处理机构。该内圆直径自动检测装置是非接触式设备,不受内罩温度的限制,使用方便灵活,设备可靠性好,安全性高,对环境无污染,不仅能够有效节约校圆机的使用频次,而且大大增强了炉子的安全可靠性。
2021-03-25 142 6.8

结合工业化生产的无取向硅钢,探讨了氧硫交互作用对钢中夹杂物生成的影响。借助非水溶液电解+扫描电镜法,研究了不同O、S含量下钢中夹杂物的变化规律。结果表明,本实验条件下,提高O含量、降低S含量,会劣化热轧组织再结晶效果。在劣化效果上,O的作用大于S;低Si、无Al硅钢中,应尽可能降低O含量、适当提高S含量,以粗化钢中微细夹杂物,减少尺寸小于1.0μm的夹杂物的数量;O、S含量与钢中夹杂物数量不具有关联性。生产过程中,不仅要严格控制O、S含量,还要严格控制生产工艺,以免生成较多的有害夹杂物。 Based on the industrial production of non-oriented silicon steel,the effects of interaction between oxygen and sulfur on the formation of inclusions were discussed.The change of non-metallic inclusions in steel sheets was investigated by means of electrolysis with non-aqueous solution under different oxygen and sulfur content.Results show that the recrystallization microstructure of hot rolled sheets will be deteriorated with the increase of oxygen content and the decrease of sulfur content.The ... 
2012-04-28 152 5.8

某冷连轧机生产无取向硅钢板材时,其边缘降的长度合格率频繁超标。为满足用户的叠片厚度精度要求,这类产品必须以增大切边量的方式来保证交货质量,而这种方式又直接降低了金属收得率,提高了生产成本。基于此,以该产线现有设备特性为基础,详细分析其软、硬件功能模式,分别对辊形与反馈控制进行全面分析与优化改进。通过现场试验论证,充分明确依托辊形优化与反馈控制程序的改进能显著提高边缘降的控制水平,该技术的使用为生产现场的边缘降控制提供了合理的技术支撑。 A cold rolling mill production of non-oriented silicon steel sheet,the thickness difference of the edge( edge-drop) is usually exceed the preset standard value,In order to meet the accuracy requirements of the user flatness,these production must be trimed wider length to meet the delivery quality of the user need, which directly reduce the metal yield and increase the manufacturing cost. Therefor,the software and hardware of the production line has been analyzed, and the work roll shape and feed... 
2014-02-28 160 5.8

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