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本发明提供了一种无取向电工钢,包括:C0.001~0.010%,Si0.5~4.0%,Mn0.05~0.8%,Al0.2~1.5%,P≤0.002%,S≤0.0015%,O≤0.002%,N≤0.0015%,各成分均为质量百分比;还提供一种无取向电工钢制造方法,包括:冶炼钢水、薄带连铸、常化酸洗、冷轧以及退火涂层。本发明中,在冶炼钢水时,控制钢水中C、Si、Mn、Al、P、S、O以及N几种成分的含量,且通过常化工艺,可以有效控制无取向电工钢成品的产品质量,具有较低的铁损以及较高的电磁性能,另外整体制造流程比较短,能够达到节能环保的目的,而通过冷连扎,有利于提高产品的质量、成材率和生产效率。
2021-08-31 162 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... 
2022-05-28 190 5.8

采用硅钢自动测量装置及X射线衍射仪检测出样品在实验前后的磁性能参数和织构强度.结果表明:较低的电压、9 Hz、较长的处理时间以及退火温度为650℃有利于增高铁损降低比例;较低的电压、较高的频率以及退火温度为650℃有利于增加磁感应强度增高比例.最佳的提高磁性能的实验参数是:频率为9 Hz,电压为500 V,处理时间为6 min,退火温度为650℃.通过织构分析可以验证:取向硅钢磁感应强度的变化取决于{110}<001>晶粒取向度值,而{110}<001>取向度值可看成是一个反映总体平均偏离角大小情况的综合值. An automatic measurement system for silicon steel and an X-ray diffraction meter were used for measuring the magnetic property parameters and texture of ex-processed samples and processed samples.It is shown that under the condition of a lower voltage,9Hz,a longer processed time and an annealing temperature of 650℃,the decrease rate of iron loss can be increased;a lower voltage,a higher frequency and an annealing temperature of 650℃ are in favor of improving the increase rate of magnetic inducti... 
2011-08-28 145 5.8

本实用新型公开了一种用于硅钢绝缘涂料生产的吸尘装置,包括底板、支撑平台和集尘箱,所述底板底端四角处通过螺栓连接固定有可制动万向轮,所述底板上端四角处焊接有导向套。有益效果在于:本实用新型通过设置真空泵、集尘箱、万向吸气臂、吸尘罩以及活性炭滤网,可在硅钢绝缘涂料生产过程中将逸出的物料粉尘进行有效的收集,确保硅钢绝缘涂料生产环境的洁净,有利于人体健康,通过设置电机、螺套、螺杆、导向柱以及导向套,可实现根据实际吸尘的需要实现装置高度的便捷调节,提高了装置的实用性。
2021-03-01 135 6.8

本实用新型公开了一种变压器铁芯用硅钢片卷放料装置,其包括底座、换位旋转机构,换位旋转机构包括设置于底座上端的旋转座、换位旋转驱动组件、至少两个以上的放卷工位,换位旋转驱动组件用于驱动旋转座相对于底座绕设置的换位旋转轴线旋转,至少两个以上放卷工位以换位旋转轴线为圆心呈环形间隔设置于旋转座,放卷工位包括有可转动安装于旋转座上的放卷筒。当其中一个放卷筒进行放卷送料时,另外的放卷筒进行上卷,当该放卷筒放卷完后,换位旋转驱动组件驱动旋转座转动,使得另外的装有硅钢片卷的放卷筒转动至放卷送料的位置,而该放卷筒就可进行上卷,如此循环操作,实现了放料装置对硅钢片卷的同步放卷放料和上卷,提高生产的效率。
2021-04-26 148 6.8

应用CAFE法对6.5%Si高硅钢铸锭凝固组织进行了模拟研究,确定出了适合高硅钢组织模拟的模型。进一步用该模型研究了过热度及冷却条件对凝固组织的影响,结果表明,随着过热度的降低,凝固组织中柱状晶比例和晶粒平均面积均减小。水冷条件下,高硅钢铸锭凝固组织几乎全是柱状晶,而且晶粒粗大。空冷条件下,等轴晶区扩大,但柱状晶仍占主要部分。缓冷条件下,等轴晶区占主要部分,晶粒平均面积和空冷条件下相当。 The solidification structure of 6. 5% Si steel ingot was simulated based on CAFE method and the model suitable for simulating the structure of high silicon steel wad ascertained. The influence of superheat and cooling condition on the solidification structure were studied. It was shown that with the superheat decreasing,the proportion of columnar crystals decrease,and the average grain size become smaller. Under water cooling condition,the solidification structure of casting was composed of almo... 
2023-05-06 196 5.8

【摘要】 <正>日前,宝钢自主研发的新型高磁感取向...
2023-05-16 270 5.8

针对传统工艺生产硅钢周期长、能耗大等缺点,采用双辊连铸工艺制备3%Si无取向硅钢连铸薄带,利用MEM,SEM和TEM观察了铸带的组织、织构及析出物,同时对比了Al的质量分数为0.6%和0.9%的连铸薄带在组织、织构及析出物特征方面的异同.结果表明:双辊连铸工艺生产的3%Si无取向硅钢铸带的组织为均匀等轴晶粒,平均晶粒尺寸约为300μm;织构组成随Al质量分数的不同具有明显差别,Al质量分数为0.9%的铸带中{100}织构强度是随机织构的7倍;铸带中的析出物为AlN和MnS,最大尺寸分别为500和50 nm左右. Given the lengthy production cycle,high energy consumption,and other shortcomings of the traditional process for producing silicon steel,a twin-roll casting process was used to produce 3%Si non-oriented silicon steel casting strips. MEM,SEM,and TEM were used to compare micro-structure,texture,and precipitate characteristics of a casting strip containing 0.6%Al with another containing 0.9%Al.The structure of 3%Si non-oriented silicon steel produced by the twin-roll casting process was a uniform i... 
2011-04-28 152 5.8

研究了锰含量对w(Si)=1.8%Si无取向电工钢组织和性能的影响。结果表明,钢中锰含量从0.3%增加到1.2%时,由于α_γ相变的产生,铸坯低倍组织、热轧板金相组织及成品织构等均发生了不同程度的变化,对成品表面质量及磁性能产生了明显的影响。 The effects of manganese content on structure and properties of w(Si)=1.8% non-oriented electrical steels have been studied.Results show that with increasing manganese content to 1.2% from 0.3%,macrostructure of continuous casting slab,hot rolled band metallurgical structure and finished product texture vary in some extent because of the occurrence of α-γ phase transformation,the surface quality and magnetic properties of finished product are affected greatly. 
2011-03-28 165 5.8

本实用新型涉及卷绕机技术领域,具体为一种双条硅钢片铁芯卷绕机,包括转盘,用于驱动转盘旋转的电机,固设于转盘顶端中心上的铁芯型模,以及两个分立于铁芯型模的两侧且通过第一推力轴承转动连接转盘的转轴;转轴上套设有带盘,带盘上成卷绕制有硅钢片,且两个带盘上的硅钢片关于铁芯型模的中心呈中心对称分布,带盘的旋转方向与转盘的旋转方向相同。本实用新型通过两个带盘上的硅钢片同时卷绕在一个铁芯型模上,并使两个硅钢片的薄厚边叠加,弥补硅钢片的自身偏差对铁芯造成的影响,从而保证了铁芯性能的稳定性,并使铁芯卷绕速度增加一倍,提高了生产效率。
2021-04-06 153 6.8

以试验室模拟CSP工艺生产的Fe-3Si热轧钢带为研究对象,采用正交试验及方差分析的方法,研究了取向硅钢初次再结晶退火工艺对高温退火后获得锋锐的高斯织构的影响。结果表明:取向硅钢两段式初次再结晶脱碳退火工艺参数加热段保温时间及加热温度是高温退火后获得锋锐高斯织构的主要影响因素,其可信度分别在90%和85%以上;在本试验条件下,通过正交试验获得的最佳退火工艺为:冷硬板经600℃保温3 min和850℃保温6 min。 Fe-3Si hot rolled strip was produced by simulating CSP technology in the laboratory.Orthogonal experiment and analysis of variance were carried out to investigate the influence of primary recrystallization on the sharp Goss texture of the oriented silicon steel.The results show that holding time of the heating section and the heating temperature for a sharp Goss texture of the samples annealed has important implications in this experiment conditions,the two-step decarburization annealing process... 
2013-02-28 159 5.8

本发明提出一种预判取向硅钢冷轧脆断发生的方法,将酸洗带头20‑30cm进行剪切取样,在取到的样板上面注明工作侧和传动侧;将取好的样板送至焊缝检测冲压机处,通过冲压机对样板进行冲压,根据不同钢带厚度,设定不同冲孔机压力,对样板进行冲压后,通过观察裂纹形貌,预判常化卷在冷轧轧制过程中是否会发生脆断,本发明使带钢在冷轧前能够制定相应的对策措施,从而降低冷轧断带所产生的损失。
2021-03-05 154 6.8

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