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对3层高硅电工钢复合板铸坯进行热轧及温轧变形加工后,采用正火、退火两种热处理方式处理,并观察轧制过程中产生的裂纹,研究不同状态下复合板的磁性能。对不同状态下的试样进行扩散退火处理,研究复合板中裂纹变化及其对磁性能的影响。结果表明:不同热处理工艺下合金内部的裂纹尺寸差异明显,裂纹尺寸对复合板的磁性能影响显著,相对于深裂纹,其他因素的影响较小;温轧变形加工后,复合板内层出现有序组织,但该有序组织在合金存在深裂纹的前提下并不能从本质上提高合金的磁性能;扩散退火工艺可以消除复合板内部的浅裂纹及微裂纹,但不能消除尺寸较大的裂纹,故而不能显著提高存在深裂纹的复合板的磁性能。 After hot rolling and warm rolling deformation processing of casting billet for three-layer high silicon electrical steel composite plate, it was normalized and annealed for heat treatment. Then, the cracks produced during the rolling process were observed, and the magnetic properties of composite plate in different states were also investigated. Furthermore, the samples in different states were subjected to diffusion annealing treatment, and the changes of crack in composite plate and their eff... 
2022-02-28 193 5.8

本申请涉及激光焊接技术领域,特别涉及一种电机定子硅钢片自动焊接工装。该工装包括定位组件,压板组件和旋转组件。其中,定位组件用于承载定子硅钢片,所述定位组件具有用于在径向上对定子硅钢片进行限位的限位结构;所述压板组件位于定位组件的顶端,用于压住定子硅钢片;旋转组件承托于定位组件的底端,并带动定位组件转动。本申请实施例提供的一种电机定子硅钢片自动焊接工装,能够解决在旋转焊接时,无法保证定子硅钢片与工装夹具的同心度相同,致使焊缝质量不过关的问题,以及激光焊接中,硅钢片与工装夹具易粘连的问题。
2021-12-21 193 6.8

组织和织构是影响无取向硅钢性能的重要因素。为改善产品性能,研究了冷轧压下率(71.7%~87.0%)对高牌号无取向硅钢组织、织构、磁性能和力学性能的影响。结果表明,随冷轧压下率的增加,退火晶粒平均尺寸先减小后增大;高斯和立方织构强度减弱,γ纤维织构增强,α纤维织构转变为较强的α*({h, 1, 1}〈1/h, 1, 2〉)织构,并随冷轧压下率的增加而增强,同时其峰值逐渐向{111}面移动;工频铁损P1.5/50、高频铁损P1.0/400和磁极化强度J5000同时降低,屈服强度变化不大,表面硬度逐渐增加。当冷轧压下率由84.7%增至87.0%、厚度减至0.30 mm时,高频铁损降幅是工频铁损的11倍,表面硬度增幅变大。以上研究成果对硅钢减薄后织构及组织的优化提供了很好的指导。 Microstructure and texture are critical factors on non-oriented silicon steel properties. In order to improve product properties, this paper studied the effect of cold rolling reduction rate(71.7%-87.0%) on microstructure, texture, magnetic properties and mechanical properties of high-grade non-oriented silicon steel. The results show that with the increase of cold rolling reduction rate, the average size of annealing grain decreases first and then increases. The intensity of Goss and λ fiber te... 
2022-05-28 192 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... 
2022-01-28 192 5.8

本发明公开了一种普通级稀土取向硅钢制备方法,通过添加稀土元素,利用第二相作用,对铸坯组织、热轧组织、初次再结晶晶粒和二次再结晶晶粒的影响,改善成品磁性能,即降低铁损,提高磁感。
2021-11-25 192 6.8

研究了组织和析出物对高效电机用无取向硅钢退火板磁性能的影响。结果表明:随着退火温度升高,退火板平均晶粒尺寸增加,P15/50明显降低,B50略有升高。退火温度在1 000℃时,退火板的综合性能较好。析出物主要是AlN、(MnS+AlN)和(MnS+Al2O3)复合析出物,尺寸较粗大,主要集中在1.0~2.5μm,还发现少量百纳米以下的细小AlN和TiN。实验室模拟TSCR流程试制的高效电机用无取向硅钢,铁损平均值小于4.00 W/kg,磁感应强度大于1.75 T,适合作中小型高效电机铁芯材料。 Effects of microstructure and precipitation on magnetic property of non-oriented silicon steel sheets after annealing for high-efficiency motor are studied in the paper by experiments.The annealed sheet exhibits a larger average grain size,obviously decreasing iron loss and slightly raising magnetic induction with increasing temperature.The annealed sheet has better comprehensive properties at a annealing temperature of 1 000 ℃.The main precipitates are compounds of AlN、(MnS+AlN)and(MnS+Al2O3) w... 
2011-04-28 192 5.8

本实用新型涉及一种便于拼装硅钢片的变压器铁芯,包括铁芯,设置在固定座的上方;硅钢片,固定安装在铁芯的侧壁上;连接座,固定在铁芯的底部,并安装在固定座上;有益效果是:本实用新型通过加入固定座和连接座的结构,方便将铁芯固定安装在固定座上,防止在对铁芯和硅钢片的拼装时,铁芯位置变化,造成铁芯和硅钢片碰撞磨损,通过转动环的转动结构,以及牵引绳的从动结构,有效控制卡柱的收缩,方便将连接座安装在固定座上,防止卡柱与连接座底部碰撞造成其损伤,硅钢片的两端均设置有规格相同的卡块,防止硅钢片出现反向安装的情况出现。
2021-12-06 192 6.8

利用加热炉模拟、动态再结晶以及热模拟等试验方法以及扫描电镜、金相显微镜等分析观察手段对无取向硅钢边裂的成因进行了探讨。结果表明,长时间加热使得板坯边部晶粒异常长大,晶界氧化并脱碳,轧制过程中边部温度过低,动态再结晶过程变弱,使得板坯边部延伸性能变差,是导致硅钢边裂的主要原因。建议通过适当降低铸坯加热温度、缩短保温时间、提高终轧温度来改善硅钢边裂缺陷。 The behaviors of high temperature oxidation,dynamic recrystallization,and hot ductility,microstructure evolution were investigated on the non-oriented electrical steel sheets to discuss the formation of edge crack.The key causes of cracking was found to be the coarse as-cast microstructure,grain boundary oxidation and decarburization in reheating furnace,as well as reduced temperature at strip edge region during hot rolling process resulting in reduced hot ductility and lack of enough dynamic re... 
2013-02-28 191 5.8

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。
2021-12-16 191 6.8

一种高磁感低铁损取向硅钢生产用表面涂层涂覆装置,包括:加工台,加工台上端固定连接支撑架,支撑架下端一侧固定连接伺服电机,伺服电机输出端固定连接第一齿轮,第一齿轮下端啮合连接第二齿轮,第二齿轮中部固定连接螺纹杆,螺纹杆上螺纹连接移动环,螺纹杆远离第二齿轮一侧转动连接支撑板,支撑板上端固定连接支撑架,移动环下端固定连接伸缩杆,支撑架下端前后部均固定连接连接框,本实用新型的有益效果是:通过设置的伺服电机、第一齿轮、第二齿轮、螺纹杆和移动环等结构,能够实现伸缩板带动硅钢板移动,从而能够完成自动化推料,减少工人劳力支出的同时,也能够避免工作人员手臂靠近涂层辊,从而避免安全事故的发生。
2021-12-22 191 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 ... 
2011-01-28 191 5.8

采用自主研发的脉冲磁场退火装置,在取向硅钢脱碳退火过程中分别施加不同强度的磁场,并采用光学显微镜和X射线衍射仪研究了脉冲磁场脱碳退火后试样的显微组织和宏观织构。结果表明,脱碳退火过程中施加脉冲磁场后取向硅钢的平均晶粒尺寸均增加,当磁场强度为40 mT时,平均晶粒尺寸最大,为13.06μm。此外,取向硅钢试样的立方织构{001}<100>强度减弱,高斯织构{110}<001>和{111}<112>织构增强,有利于获得更好的成品织构和磁性能。 Self-developed pulsed magnetic field annealing device was used to apply magnetic field of different intensities during decarburization annealing of an oriented silicon steel, and microstructure and macro-texture of the specimens after decarburization annealing in a pulsed magnetic field were studied by using optical microscope and X-ray diffractometer. The results show that the average grain size of the oriented silicon steel increases with the application of pulsed magnetic field during decarbu... 
2022-02-28 191 5.8

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