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本发明提供一种绝缘被膜的密合性和被膜张力优异的带绝缘被膜的方向性电磁钢板。是在方向性电磁钢板的表面具有以镁橄榄石为主体的基底被膜且在上述基底被膜的表面形成以硅磷酸盐玻璃为主成分的绝缘被膜而成的带绝缘被膜的方向性电磁钢板,通过使上述基底被膜和绝缘被膜中的Sr、Ca、Ba为特定的浓度梯度,从而使上述绝缘被膜的密合性和被膜张力提高。
2020-12-23 216 6.8

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... 
2011-03-28 216 5.8

针对川威950的工艺现状,结合无取向低硅钢SGG生产的工艺特点,主要从控制其钢坯加热和轧制以及终轧温度和卷曲温度几方面入手,进行无取向低硅钢生产的工艺控制研究。同时根据近6000吨的生产实践表明,该工艺措施能很好的满足该钢种的需要。 950 process Chuanwei status quo,with non-oriented silicon steel production process features low,mainly from the control of billet heating and rolling and finish rolling temperature and coiling temperature of several aspects,for non-oriented silicon steel production process of low control at the same time According to nearly 6,000 tons of production practice shows that the process measures could well meet the needs of the steel. 
2011-01-28 216 5.8

本实用新型属于硅钢技术领域,具体的说是一种硅钢前处理高液回流装置,包括机体;所述机体的侧端固接有一号导管;所述一号导管上安装有二号导管;所述机体的顶端固接有连接管;所述连接管上安装有入泡管;所述二号导管的内侧壁固接有电机;所述电机的输出端固接有扇叶;所述二号导管的顶端内侧壁固接有定位板;所述定位板的侧端转动连接有旋转叶轮;所述二号导管的底端固接有排泡管;通过一号导管和二号导管的配合可以把溢出的泡沫进行导向,通过扇叶和旋转叶轮的配合可以使泡沫快速流动,再通过排泡管排出进入机体的内部,可以使泡沫循环使用,避免泡沫的溢流造成环境的污染及碱液的浪费。
2021-12-08 216 6.8

研究了退火温度对3.1%Si无取向硅钢组织和磁性能的影响规律。结果表明:退火温度从940℃提高至1 000℃,平均晶粒尺寸由98μm增加到145μm,铁损P1.5/50从2.576 W/kg降低至2.408W/kg。随着退火温度的升高,γ不利织构组分强度逐渐降低,{111}〈112〉织构组分强度降低约16%,磁感B50逐渐升高,磁性能水平提高。 The effects of annealing temperature on microstructure and texture and magnetic properties of 3.1%Si non-oriented silicon steel were investigated in this paper.The results showed that,when the annealing temperature increased from 940℃ to 1 000℃,the average grain size of metallographic structure increased from 98μm to 145μm,the iron loss value P1.5/50 decreased from2.576 W/kg to 2.408 W/kg.And as the annealing temperature increased,the strength of the unfavorable texture componentγgrad... 
2022-01-28 216 5.8

采用光学显微镜和X射线衍射仪研究了常化退火处理对无取向硅钢热轧板和成品退火板显微组织和织构的影响。结果表明:常化退火处理消除了热轧板中的变形组织,促使变形晶粒完成再结晶;常化退火处理使高斯织构和立方织构易通过再结晶在变形带内形核和长大,可显著降低成品退火板的{111}和{112}不利织构组分的占有率,提高{100}和{110}有利织构组分的占有率,从而有利于提高无取向硅钢成品板的磁性能。 The effect of normalizing annealing treatment on microstructure and texture of non-oriented silicon steel hot rolled plates and final products were investigated by means of optical microscope and X-ray diffractometer analysis.The results show that the deformed microstructure of the hot rolled plates transformed into recrystallized grain after normalizing annealing treatment.The grains of Goss texture and cubic texture crystallographic orientation were formed and grown by recrystallization in the... 
2013-02-28 216 5.8

本发明涉及无取向硅钢技术领域,尤其涉及一种改善高牌号无取向硅钢冷轧断带的控制方法。按重量百分比计:[Si+Al]≥4.0%;Mn、S含量满足:S≤0.0015,[Mn]/[S]:200~400;1)热轧过程中使用保温罩,热轧轧制时投入边部加热,头尾100米内卷曲温度提高15~30℃;2)常化机组圆盘剪进行边部剪边前增加加热装置,剪切后增加毛刺打磨装置,采用煤气明火加热,保证钢板温度在韧脆转变温度以上;3)圆盘剪间隙满足关系式:ds=(0.15~0.45)d0ds:圆盘剪间隙,μm;d0:常化板板厚,mm;4)常化采用快速加热,控制钢带的预热段升温速度320~380℃/min,机组速度20~30m/min;5)常化工艺后,控制边部小于20μm的晶粒占比在5%以内。有效的减少了冷轧断带的发生,提高成材率1.30%以上,降低了生产成本。
2021-09-13 216 6.8

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。
2021-11-25 215 6.8

根据本发明的一个实施例的双取向电工钢板,以重量%计,所述钢板包含Si:2.0至4.0%、Al:0.01至0.04%、S:0.0004至0.02%、Mn:0.05至0.3%、N:0.01%以下且0%除外、C:0.005%以下且0%除外、P:0.005至0.15%、Ti:0.001至0.005%、Ca:0.0001至0.005%和Mg:0.0001至0.005%,余量包含Fe和其他不可避免的杂质,具有从{100}<001>起15°以内的取向的晶粒的面积分数为60至99%,具有从{100}<025>起15°以内的取向的晶粒的面积分数为1至30%。
2020-12-17 215 6.8

本发明的一个实施方案提供一种取向电工钢板及其制造方法,以重量%计,所述取向电工钢板包含:Si:3.0‑4.5%、Mn:0.05‑0.2%、Al:0.015‑0.035%、C:0.0015%以下(0%除外)、N:0.0015%以下(0%除外)、S:0.0015%以下(0%除外)、余量的Fe及其它不可避免的杂质,并且满足以下关系式1和关系式2。[关系式1](W13/50/W17/50)≤0.57[关系式2](W15/50/W17/50)≤0.76(其中,所述关系式1中,Wx/y表示施加磁场的大小为x/10T且频率为yHz的条件下的铁损值)。
2020-12-15 215 6.8

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... 
2022-02-28 215 5.8

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... 
2022-05-28 215 5.8

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