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本发明提供一种超低铝无取向硅钢夹杂物控制方法。该钢种化学成分质量百分比为C≤0.005%,Si:0.25%‑1.50%,Mn:0.15%‑0.55%,P:0.02%‑0.06%,S≤0.005%,Als≤0.005%,余量为Fe及不可避免的杂质。工艺流程为:KR→BOF→RH→连铸。转炉出钢严格控制下渣量,出钢结束加石灰、渣面脱氧剂调渣;RH脱碳结束后,先加低碳低硫硅铁、金属铝或铝钙铁合金复合脱氧,最后加入金属锰、磷铁进行合金化,然后净循环6‑10min,破空出钢运至连铸浇注。得到钢水中主要为SiO2‑Al2O3系夹杂,避免了生成低熔点SiO2‑MnO系夹杂,轧制延展变长,影响晶粒长大;同时也避免了生成高SiO2组分类酸性夹杂,导致耐材的侵蚀。可显著改善钢中非金属夹杂物类型,提高无取向硅钢的性能,并提高了钢水浇注性能。
2021-01-21 142 6.8

本实用新型涉及硅钢片钢卷技术领域,且公开了一种用于硅钢片钢卷制造的焊接装置,解决了目前对钢片钢卷的夹持效果不好,导致硅钢片钢卷在焊接时会出现两侧位置偏移,焊接效果不好的问题,包括底板,所述底板上端中部连接有安装板,安装板上端两侧通过第一螺栓与底板上端固定连接;本实用新型,通过对硅钢卷本体的位置进行固定,且不会导致硅钢卷本体位置发生偏移,导致硅钢卷焊接效果不好;通过第一电机带动第一滑块滑动,使得第一转杆与第二转杆位于第一滑块上端与下端转动,带动第一支撑板与第二支撑板移动,能够对硅钢卷本体进行支撑,能够对硅钢卷本体进行支撑,便于进行焊接。
2021-06-17 117 6.8

采用电解法和扫描电镜研究了300 t转炉-RH精炼钙处理对无取向硅钢板(%:≤0.005C、1.2~2.2Si、0.2~0.6Mn、≤0.20P、≤0.005S、0.2~0.6Al、0~0.01Ca)中夹杂物的影响。结果表明,钢中Al含量为0.25%和0.35%时,钢中溶解氧均小于1×10-4%,钙处理后都会产生CaS夹杂物,尤其是含0.35%Al的钢水;钙处理可以有效减少钢中的夹杂物数量,尤其是0.5μm以下的微细夹杂物数量;钙处理后夹杂物的种类以AlN、CaS为主,同时还含有少量的氧化物夹杂物以及AlN-CaS复合夹杂物,尺寸主要为1.5~5.0μm。 The effect of 300 t converter-RH refining calcium treatment on inclusions in non-oriented silicon steel sheet (%:≤0.005C,1.2~2.2Si,0.2~0.6Mn,≤0.20P,≤0.005S,0.2~0.6A1,0~0.01Ca) has been studied by electrolysis and scanning electron microscope.Results show that with 0.25%and 0.35%Al content in steel,all the dissolved oxygen in liquid is less than 1×10-4%,and the CaS inclusions are produced after calcium treatment,especial for the liquid containing 0.35%Al;the amount of inclusions in ste... 
2011-01-28 156 5.8

本发明公开了一种直流换流阀饱和电抗器用超薄硅钢铁心质量的评估方法,包括以下步骤:S1、外观评价;S2、叠装系数评价;S3、磁性能评价;S4、噪声评价;S5、耐受环境温度变化评价和S6、长期运行性能评价,本发明考虑了直流换流阀饱和电抗器对超薄硅钢铁心外观、叠装系数、磁性能、噪声及长期运行等特性要求,实现了超薄硅钢铁心外形外观的性能评估、铁心基本参数评估、电磁性能评估、耐受环境温度变化评估及长期电热运行特性评估,为直流换流阀饱和电抗器用超薄硅钢铁心可靠运行提供了保障。
2021-05-28 118 6.8

{100}织构因具有两个易磁化方向能够明显的提高磁性能,因此如何在表面获得具有{100}织构一直是无取向电工钢研究焦点。本文主要介绍了获得{100}织构的主要工艺方法及其基本原理,并结合实际生产过程对各工艺方法的优缺点进行了分析;一方面,优化无取向电工钢的成分,降低碳、锰元素含量以避免脱碳退火和真空退火,简化生产工艺;另一方面,调节升温速度、降温速度和退火气氛,使{100}晶面的表面能或弹性应变能最低,制备具有{100}织构柱状晶组织的无取向电工钢是今后的发展方向。 Because { 100} texture has two easy magnetization directions,which can significantly improve magnetization properfies,how to develop { 100} texture is a focus for researchers and manufactures. In the paper,main manufacturing processes and basic principle are introdued,and their advantages and disadvantages in practical production are analyzed. On the one hand,the production process can be simplified by optimizing chemical compositions,such as reducing the content of C and Mn,which can avoid deca... 
2013-12-28 139 5.8

研究稀土Ce的添加对含Sn高磁感无取向电工钢磁性能及夹杂物的影响。对比分析了两种成分钢的磁性能以及各过程工艺条件下夹杂物种类和分布情况。结果表明,在含Sn高磁感无取向电工钢中加入稀土元素Ce可以粗化夹杂物,提高成品晶粒的均匀性,有效降低铁损;同时Ce的添加不影响Sn元素提高磁感的效果,磁感保持不变。 Effect of Ce on magnetic properties and inclusion of Sn-bearing high permeability non-oriented electrical steel was investigated. A comparative analysis of the magnetic properties and the types and distributions of inclusion in the two sheets with different composition shows that the addition of Ce to the Sn-bearing high permeability non-oriented electrical steel can coarse the inclusion,improve the homogeneity of the finished grain and effectively decrease the core loss. Also,the addition of Ce... 
2014-08-28 165 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. 
2013-05-28 152 5.8

目前随着电工钢用户冲压设备的升级,冲压速度逐步提高,对电工钢产品的硬度和强度指标提出了更高的要求。与普通硬度级别的无取向硅钢相比,高硬度50BW600的Hv硬度提高15~20,达到125以上,同时对电磁性能指标也有较高要求。本钢通过化学成份和热轧及冷轧连退生产工艺的设计,经过小批量生产试验,满足用户要求。通过对工艺的严格控制,在大批量生产过程中,保证了产品的力学性能和电磁性的检验合格率。 Currently with upgrading of stamping equipment of silicon steel user, gradually increasing of stamping speed, propose higher demand for hardness and strength of silicon steel. Compared with conventional 50BW600, high hardness 50BW600 have higher hardness, reach greater than 125Hv. Through design of chemical composition with hot mill and annealing, production test of small quantities, stamping performance meet user request. 
2014-02-28 144 5.8

本实用新型涉及硅钢绝缘涂料技术领域,尤其为一种用于硅钢绝缘涂料混料装置,包括底座和混料箱,所述底座的顶端固定连接有混料箱,所述混料箱的左端内侧螺旋连接有塞块,所述混料箱的左端固定连接有控制器,所述混料箱的顶端内侧设置有进液管,本实用新型中第二电机带动螺旋杆便捷转动,螺旋杆和壳体的转动连接和可靠贴合将料斗中的配料螺旋送入混料箱,第一电机通过第一转动杆和第二转动杆带动搅动杆对混料箱中的配料进行大幅度扰动混合,贴合过滤网的搅动杆不断推动过滤网上被过滤的大体积固体配料,将其粉碎使其便于溶于液体配料中,实现充分混合,通过透明拉板便捷观察混料箱内侧混料情况,实现混料的彻底性,增加装置的实用性。
2021-05-12 133 6.8

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。
2021-12-06 170 6.8

采用CVD法制备6.5%Si高硅钢,介绍了具体的制备工艺过程,研究了温度对渗硅速率和试样质量减轻的影响,同时分析了扩散时间对高硅钢中硅分布的影响。结果表明:在CVD反应过程中,反应温度高于1050℃将大大提高渗硅速率,但当温度大于1200℃后,渗硅速率趋于稳定;渗硅后,试样会减轻、减薄,随着温度升高,试样质量减轻的速率逐渐增大,在1200℃左右趋于稳定;扩散时间越长,硅分布越均匀,结合制备效率进行考虑,满足Δw表-中/b≤5的时间为适宜的扩散时间。 6.5%Si high silicon steel was manufactured by using CVD method and the process was introduced,the influence of temperature on the siliconizing rate and quality reducing rate,diffusion time on silicon distribution were investigated.Results as follows: the siliconizing rate will increase quickly when the temperature is higher than 1050 ℃,but the siliconizing rate will become steadily as the temperature up to 1200 ℃;The quality reducing rate will increase with the elevating of temperature and the r... 
2013-01-28 140 5.8

通过对辉光放电发射光谱参数的优化,以铁元素为内标来消除基体效应,建立了测定硅钢薄板中微量硼元素的方法。优化的实验参数为:放电电压1200 V,放电电流50 mA,预溅射时间40 s,积分时间10 s。校准曲线硼元素含量范围0.0001%~0.022%,相关系数大于0.999,测量结果与认定值一致,相对标准偏差小于10%。完全能够满足日常分析测试的要求。 A glow discharge optical emission spectrometry(GD-OES) method for determining trace boron element in silicon steel sheets were established through optimization of instrumental parameters and using Fe element as an internal standard to eliminate the matrix effect.The optimized instrumental parameters included discharge voltage,discharge current,pre-sputtering time and integration time,which are 1200 V,50 mA,40 s,and 10 s,respectively.The content of boron element that can be determined from the ca... 
2011-03-28 139 5.8

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