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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. 
2011-03-28 166 5.8

对高牌号无取向电工钢35W300的成品进行了第二次退火,对第二次退火后的成品性能、纵横向磁性能差异和组织变化进行了分析。结果表明,随着第二次退火温度的升高,晶粒长大,磁性能优化。铁损平均值下降0.087 5W/kg,磁感平均值升高0.008T。第二次退火温度为820℃的产品的磁性能能够满足用户使用要求。 The product of high grade non-oriented electrical steel 35W300 was annealed at the second time.Microstructure,the difference of magnetic properties in the vertical and horizontal and were studied.The results show that the grain grew up and magnetic properties optimized with the increase of annealing temperature for the second time.Iron loss average declines in 0.0875 W/kg,magnetic induction average increases 0.008 T.The magnetic properties can meet the requirements of users at the second anneali... 
2013-04-28 166 5.8

概述了高磁感取向硅钢生产工艺的研究现状及发展趋势。介绍了国内外薄板坯连铸连轧流程生产高磁感取向硅钢的研究现状。从流程工序特点、热履历、组织与抑制剂控制方面进行对比,分析了薄板坯连铸连轧流程相对传统板坯流程生产高磁感取向硅钢的技术优势,在此基础上提出了利用该流程生产高磁感取向硅钢需要解决的主要技术难点。 The current status and development trend of production process for high magnetic induction grain-oriented silicon steel are summarized.The research status of producing high magnetic induction grain-oriented silicon steel by thin slab casting and rolling process at home and abroad is introduced.The potential technical advantages of producing high magnetic induction grain-oriented silicon steel by thin slab casting and rolling process are obtained by analyzing in terms of process characteristics,t... 
2013-07-28 166 5.8

本发明公开了一种高效无取向硅钢极薄带的工业连续化生产方法,其包括异步轧制、脱脂、热处理、急速冷却、涂绝缘层、烘干烧结、卷取收集各工序;其中,异步轧制中的异步比为1:1.05~1:1.24;脱脂、热处理、急速冷却、涂绝缘层、烘干烧结、卷取收集工序为连续化生产工艺;热处理工序中,第一步为预热,预热温度为500℃~720℃,预热时间20秒~125秒;第二步为相变热处理,相变热处理温度为840℃~940℃,相变热处理时间100秒~600秒;急速冷却工序中,30秒内将钢带温度降温至350℃以下。优点在于:实现工业化连续生产无取向硅钢极薄带,有效提高产能,生产的无取向硅钢极薄带具备高磁感、低铁损等磁性能。
2021-07-31 166 6.8

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。
2021-01-21 166 6.8

本实用新型公开了一种冲制电机硅钢片用高速冲床的润滑油温控调节装置,包括换热机体、呈上下布置在换热机体内的冷冻水出水汇总管与冷冻水进水分配管以及冷冻水热交换换热管,冷冻水进水分配管、冷冻水热交换换热管和冷冻水出水汇总管依次连接,冷冻水进口外接冷冻水流量调节阀,冷冻水出口流出的冷冻水回流至冷却水池;换热机体顶部的一侧、另一侧分别开有进油口、出油口,进油口设油温检测盲管,油温检测盲管内设感温探头,感温探头与冷冻水流量调节阀信号连接。采用冷冻水换热冷却高温润滑油,带走油液热量,通过对冷冻水的流量控制调节,冷却后的油液温度恒定,以满足冲床润滑、冷却需要,以及减少冲床的换油周期。
2021-07-24 166 6.8

针对马钢无取向电工钢孔洞缺陷的分布规律及形貌特征,对缺陷样进行了显微分析,并利用生产实绩数据分析了该缺陷产生的原因。结合热轧生产过程,主要通过避免带钢撞击导卫以及降低导卫结瘤的产生等措施,可有效抑制热卷异物压入产生,从而降低冷轧工序孔洞的产生。 In viewing of the distribution and morphology characteristics of the hole defect of non-oriented electrical steel in Maanshan Iron and Steel Co.,Ltd.,the causes of the defect were analyzed by micro analysis of the defect sample and the production data.Combined with the production process of hot rolling,by avoiding the impact of strip steel on the guide and reducing the nodule formation on the guide,the pressing of foreign bodies in hot coiling could be effectively suppressed,thus reducing the fo... 
2022-01-28 166 5.8

根据本发明的一个实施例的取向电工钢板,其中存在于电工钢板表面的沟槽以及与沟槽底部相连的再结晶和其他再结晶的平均取向度差为0.5°至10°。
2020-12-18 166 6.8

本发明揭示了一种高牌号无取向硅钢及其生产方法,生产方法包括冶炼、连铸、热轧、酸洗、切边、常化、冷轧,冶炼最终所得钢水化学成分以质量百分比计为:C≤0.005%、Si≥2.8%、Als0.5~1.2%、Mn0.25~0.8%、P≤0.02%、S≤0.0040%、N≤0.0020%、Nb≤0.0020%、V≤0.0020%、Ti≤0.0020%,其余为Fe以及不可避免的杂质;切边工序对热轧卷板的两侧进行切边,单侧的剪切宽度为10~20mm;常化在罩式退火炉中进行,均热温度为T={(990~1010)‑100×[30×(Si)+20×(Al)]}℃,(Si)为Si的质量百分比,(Al)为Al的质量百分比,均热时间为6h,之后冷却;钢卷在罩式退火炉中冷却至预设温度T0时取出送至冷轧线冷轧,T0为120~180℃,第一道次轧制时的轧制力恒定且轧制力为11000~12000kN。本发明可避免高牌号无取向硅钢在冷轧过程中由于脆性高而导致的频繁断带。
2021-11-10 166 6.8

本发明公开了硅钢片铁芯生产线,包括放卷机构、剪切机构、送料机构、叠片机构和下料机构,送料机构包括磁性传送带、送料件和第一定位杆,磁性传送带包括上传送带和下传送带,送料件可沿磁性传送带的正交方向平行伸出,其中,第一送料分台和第二送料分台安装于上传送带的下方并且相背运动,第三送料分台和第四送料分台安装于下传送带的下方并且相背运动,第一定位杆用于定位硅钢片,叠片机构包括叠放台、悬梁和两个六自由度机械手,六自由度机械手吊装于悬梁上,包括有电永磁铁,用于吸取硅钢片,下料机构包括滑板,叠放台放置于滑板上。根据本发明的硅钢片铁芯生产线,可提高设备自动化程度,提高叠片速度,从而提高生产线的生产效率。
2020-12-30 166 6.8

系统研究了无取向硅钢用磷酸盐系涂层性能的影响因素。以氢氧化铝和磷酸为原料制备磷酸二氢铝,再添加适量的添加剂酒石酸铵、二氧化硅、环氧树脂,得到的涂液涂布于硅钢表面,并控制合适的烘干温度,通过耐盐雾实验考察各因素对涂液耐腐蚀性能的影响。实验结果表明,在磷酸与氢氧化铝物质的量比为3.4∶1、酒石酸铵用量为2%、二氧化硅用量为1%、环氧树脂用量为5%、烘干温度为300℃条件下,所得涂层材料的防(耐)腐蚀效果最佳。 The factors influencing the performance of phosphate anticorrosive coating for non-oriented silicon were systematically studied.Aluminum dihydrogen phosphate was prepared with aluminum hydroxide and phosphoric acid as raw materials.Then added the right amount of additives,such as ammonium tartrate,silicon dioxide,and epoxy resin to prepare the liquid coating,which was coated on the surface of the silicon steel,and finally controlled a suitable drying temperature.The influences of various factors... 
2014-09-28 166 5.8

介绍了攀钢冶炼电工钢过程硫含量变化以及过程回硫、增硫情况,采取针对性措施,如:提高铁水装入量、转炉采用石英砂代替复合造渣剂造渣、RH脱硫等,降低钢中硫含量。结果表明:采取相应措施后,电工钢炼成率大幅提高,成品w[S]≤0.008%的比例由改进前的62%提高到92.4%,取得了明显的冶金效果。 The resulfurization and the change of sulphur content in production of electrical steel is analyzed.The targeted measures have been taken,such as increase the loaded quantity of liquid iron,quartz sand replaces the composite slagging agent in the converter and RH desulfurization to decrease the sulphur content of the steel.The result shows,after the measures have been taken,the finished product ratio of electrical steel increase a lot.The ratio of sulfur content of finished product no more than ... 
2011-02-28 166 5.8

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