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【作者】 王桦; 舒子龙; ...
2013-01-28 68 5.8

含铜抑制剂作为取向硅钢的主抑制剂或辅助抑制剂不仅可以抑制初次晶粒的长大,促进二次再结晶,还可以降低铸坯的加热温度。取向硅钢中主要抑制剂为10~50 nm Cu2S,在钢的铸坯、热轧、冷轧、脱碳等工艺过程均可析出;(Cu,Mn)1.8S、Cu1.8S、ε-Cu等主要作为辅助抑制剂,尺寸一般为30~50 nm(或大于50 nm),主要在热轧阶段析出。总结了国内外有关取向硅钢中含铜抑制剂析出行为的研究进展,当前主要研究不同生产流程和工序中含铜抑制剂的析出行为和作用机理。 As main inhibitor or auxiliary inhibitor for grain-oriented silicon steel,the particles of inhibitor bearing copper not only inhibit the primary crystal growing and promote the secondary recrystallization,but also decrease the heat temperature of casting slab.The main inhibitor for grain-oriented silicon steel is 10~50 nm Cu2S,which precipitate in process and procedure including steel casting slab,hot rolling,cold rolling and decarburizing process,while the 30~50 nm or more than 50 nm... 
2013-03-28 111 5.8

阐述了电工钢在\"双碳\"中的作用,强调了电工钢的生产工艺技术及在减少碳排放、降低能耗中的作用,对下游能效升级带来明显的节能及降碳成果。同时,分析了2021年电工钢的生产运行情况,介绍了电工钢的未来发展,并针对如何减少碳排放以及生产更多的更低铁损、更高磁感的电工钢谈了几点启示。 The effects of electrical steels on carbon peak and carbon neutralization were expounded,especially on the achievements of obvious energy saving and carbon reduction to the downstream energy efficiency upgrading bringing from the production technology of electrical steels and their effects to reducing carbon emission and energy consumption.Meanwhile the production situation of electrical steels in 2021 was analyzed,and the future development of electrical steels was introduced,and some advices w... 
2022-01-28 136 5.8

电工钢试样加工产生的剪切应力会恶化钢板的磁性,对不同牌号硅钢片的横向、纵向试样退火前后磁性能的变化进行研究,结果表明:无取向硅钢片在剪切过程中横向、纵向的磁性受到剪切应力影响是不一样的。 The electrical steel sample processing magnetic of electrical steel will worsen due to the shear stress of sample. In this paper,the magnetic change of transverse,longitudinal specimens of different type of silicon steel sheet before and after annealing are studied. The results show that the magnetic of non- oriented silicon steel sheet affected in the process of shear is not the same in horizontal and vertical direction. 
2013-05-28 118 5.8

取向硅钢常化工序主要采用现场实测带钢温度的方式测定冷却速率,并通过稳定冷却水温、调整冷却水量及喷梁运行数量等方式保证合理的冷却速率,给常化工艺设计和生产带来诸多不便。通过对常化工艺水冷过程带钢的传热分析求解,在建立带钢水冷温度模型的基础上,研究了不同冷却工艺参数对带钢温度及冷却速率的影响规律以及冷却工艺的交互作用结果。结果表明:模型计算结果能够较好地反映取向硅钢在常化水冷过程中的温度及冷却速率的变化,其计算误差为0.80%~4.11%;在特定取向硅钢厚度规格和常化工艺下,随着常化冷却水量及有效冷却长度的增加,带钢水冷温度及冷却速率与呈非线性变化;常化水冷工艺主要通过调控带钢与冷却水之间热交换量和交换时间实现对带钢温度的控制,实际生产中需综合考虑机组速度、冷却水量及有效冷却长度之间的交互作用,选定喷梁投入数量和冷却水量以获得稳定的冷却速率。 The cooling rate of normalization process mainly determined by measuring the grain oriented silicon steel strip temperature on site, and ensures the cooling rate by stabilizing the cooling water temperature, adjusting the cooling water volume and the operation quantity of spray beam, which brings inconvenience to the normalization process design and production. Based on the heat transfer of strip in the water cooling section of normalization process, the water cooling temperature model for the n... 
2022-01-28 133 5.8

结合实际生产0.4%Si无取向硅钢,统计了不含Sn和0.025%Sn无取向硅钢的磁性能变化,利用金相显微镜、X射线衍射仪观察分析不同成分下试样的显微组织和微观织构。试验结果表明:Sn元素可以显著降低无取向硅钢的晶粒尺寸,0.025%Sn试样的平均晶粒尺寸比不含Sn减小28.4%;加入Sn元素后抑制了无取向硅钢中不利于磁性能的{111}面织构组分强度,提高了对磁性能有利的{100}面织构组分强度,0.025%Sn与不含Sn相比磁感均值从1.756 T提升至1.768 T,铁损均值从5.476 W/kg降低至5.204 W/kg,明显改善了无取向硅钢磁性能。 In this paper combined with the actual production of 0.4% Si non oriented silicon steel, the magnetic properties of non oriented silicon steel without Sn and 0.025% Sn were counted. The microstructure and microtexture of samples with different compositions were observed and analyzed by metallographic microscope and X-ray diffraction. The results show that: Sn can significantly reduce the grain size of non oriented silicon steel, and the average grain size of 0.025% Sn sample is 28.4% smaller tha... 
2022-01-28 117 5.8

文章以国内某公司硅钢厂连续退火机组1号辐射管加热段为研究对象,分析炉内传热机理,建立并开发了辐射管加热段的传热模型。采用生产实际数据对模型进行了验证,以总燃料消耗量最小为目标,得出该炉段长度方向上燃料的最佳分配机制。所得结论为该公司连续退火机组节能控制提供理论依据。 Taking the radiant tube heating section of No.1 continuous annealing unit in a silicon steel plant of a domestic company as the research object, the heat transfer mechanism in the furnace is analyzed, and the heat transfer model of the radiant tube heating section is established and developed. The model is verified by the actual production data. Aiming at the minimum total fuel consumption, the optimal fuel distribution mechanism in the length direction of the furnace section is obtained. The co... 
2022-01-28 97 5.8

本发明提供一种退火隔离剂及退火隔离剂悬浮液的制备方法与无底层低温高磁感取向硅钢的制备方法。所述退火隔离剂按照重量份包括如下组分:CaO:1‑5份,Al2O3:50‑58份,Ca(AlO2)2:1‑5份,MgO:30~38份,添加剂:1‑2份。本发明的退火隔离剂不仅能够起到高温退火时钢板之间的隔离作用,而且能够在升温过程中保护抑制剂对二次再结晶晶粒的抑制能力,确保二次再结晶晶粒稳定长大,成品磁性能优异,进而稳定制备出表面光洁,边部完全无底层的低温取向硅钢成品。
2021-12-31 199 6.8

本申请提供了一种提高高磁感取向硅钢渗氮效率的方法,属于高磁感取向硅钢渗氮处理技术领域,包括所述高磁感取向硅钢按重量百分比包括:Si:2.8~3.4%、C:0.040~0.070%、Als:0.015~0.045%、Mn:0.06~0.14%、S:0.003~0.020%、N:0.003~0.010%、Cu:0.01~0.025%、Sn:0.03%~0.07%、Cr及Ni,Cr和Ni的总含量小于0.5%,其余为Fe和不可避免杂质物,其特征在于,控制脱碳退火后钢带表层氧化物中铁系氧化物的比例,该装置能够增加脱碳退火后钢带表面氧化层中铁系氧化物占整个氧化层重量的比例,从而在获得同等渗氮量的情况下实现了快速渗氮,缩短渗氮时间,提高渗氮效率。
2021-12-16 133 6.8

本发明的一种超低碳含钇取向硅钢及其制备方法,化学组成及质量百分比为Si:2.0~4.5%,C:≤0.003%,Y:0.001~0.1%,Mn:0.1~0.25%,Al:0.01~0.02%,Cu:0~0.3%,S:0.02~0.035%,N:0.009~0.011%,其余为Fe和不可避免的杂质元素。生产工艺为:连铸、铸坯加热、热轧、常化、冷轧、初次再结晶退火、二次再结晶退火。本发明采用超低碳的成分,取消了常规取向硅钢脱碳退火工艺,简化了生产流程。通过稀土微合金化解决了因超低碳成分导致的单向铁素体组织抑制剂析出困难的技术难题。本发明制备的含钇取向硅钢厚度为0.2~0.35mm,磁感应强度B8为1.85~1.94T,铁损P17/50为0.9~1.2W/kg,可以用于变压器的铁芯材料,制备流程更为简洁。
2021-12-02 116 6.8

本实用新型公开了一种用于硅钢片的焊接工装夹具,它包括底座,所述底座包括底板(1)、固设于底板(1)顶表面上的左挡板(2)和右挡板(3),左挡板(2)与右挡板(3)之间固设有位于底板(1)上的挡条(4),挡条(4)的前端面上设置有止口(5),左挡板(2)的前端部铰接有压杆(6),所述底板(1)的顶表面上且位于其左侧放置有压条(7),底板(1)的顶表面上且位于其右侧固设有限位条(8),压条(7)与限位条(8)之间设置有多个紧靠于一起的定位块(9),每个定位块(9)均放置于底板(1)的顶表面上。本实用新型的有益效果是:结构紧凑、提高硅钢片组件焊接质量、提高硅钢片组件生产效率、操作简单。
2021-11-19 101 6.8

本发明涉及硅钢片叠片领域,具体涉及一种硅钢片自动叠片设备,包括滑移架、安装座和若干个单层碟片机,每个单层碟片机均包括码放架、横向拉移机构、下压机构、两个同步拉进机构、双层同步下压机构、传动连接器、第二弹性安装座、三个第一弹性安装座和五个电磁铁,通过双层同步下压机构,通过传动板能够与传动连接器之间自动分离,避免使用驱动源进行分离,降低了设备成本,通过传动连接器带动传动管进行移动,减少使用驱动源,降低设备的成本,传动连接器进行下降时也将带动传动管进行下降,使得中部硅钢片、两个纵向硅钢片和横向硅钢片之间进行同时下降,增加了工人的观察时间,减少出现硅钢片偏移的风险。
2021-10-31 102 6.8

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