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一种基于临界变形制备高强度无取向电工钢的方法,按以下步骤进行:(1)按电工钢成分真空精炼钢水,连铸制成连铸坯;(2)在900~1100℃热处理30~120min,然后热轧制成热轧板;(3)冷轧冷轧板;冷轧板厚度为目标厚度+(0.01~0.1)mm;(4)在400~700℃进行一次退火处理,在850~1200℃进行二次退火处理;(5)酸洗去除氧化层,然后进行温轧或二次冷轧进行临界变形。本发明的方法利用位错强化机制采用临界变形提高无取向电工钢的强度的原理,利用一次退火二次退火进行一次调控织构并临界变形对织构二次调控的方法增加对磁性能有利的再结晶织构来优化磁性能,该生产方式工艺简单,成本较低,生产效率高,适用于大批量生产。
2021-01-11 199 6.8

介绍了电工钢生产线连退机组的表面处理工艺,特别是电解清洗系统的工作机理、设备构造、生产工艺及各种影响因素。 This paper introduces the technology of surface treatment of continuous annealing unit in electrical steel production line,in particular the working mechanism,structure of equipment,production techniques and various influence factors of the electrolytic cleaning system. 
2023-05-11 1.37k 5.8

介绍了EB5325涂层液的主要性能和中冶新材生产冷轧无取向电工钢所用的涂层设备,通过多次试验摸索出使用EB5325涂层液的工艺,对涂层出现的缺陷进行分析研究,并提出解决方法,使中冶新材生产的冷轧无取向电工钢的涂层质量满足了用户的要求。 This article introduces the main properties of EB5325 and the coating equipments for cold-rolled non-oriented electrical steel. A process using EB5325 coating liquid is made through many time experiments and exploration. The appeared defects in the coating are studied and analyzed,and the solutions are proposed. The coating quality meets clients’ requirements of cold rolled non-oriented electrical steel. 
2014-01-28 174 5.8

本发明是高磁感取向硅钢的脱碳退火工艺,首先对硅钢卷进行放卷、活套、清洗;再对硅钢进行脱碳、渗氮处理,氨气流量6‑20m3/h、加湿槽温度30‑70℃,脱碳温度780‑880℃、机组速度45‑75m/min、气氛中氢气比例20‑60%、氮气比例40%‑80%,然后冷却到常温;对硅钢进行活套;再对硅钢进行涂覆氧化镁,涂覆量4‑10g/㎡;最后对硅钢进行干燥和收卷成硅钢卷;通过本发明对高磁感取向硅钢的脱碳退火工艺流程进行了优化设计,调整了脱碳退火工艺中氨气流量、气氛、加湿槽水温等参数,优化了高磁感取向硅钢中碳元素、氮元素和氧元素的含量,最终使高磁感取向硅钢实现稳定的性能,磁感达1.92T。
2021-04-23 189 6.8

采用RH精炼添加钙合金方式对硅钢进行钙处理。结果表明,钙合金添加量为0.67、1.00、1.67kg/t钢时,钢中钙含量分别为0、2×10-6、4×10-6;随着钙合金添加量增大,钢中夹杂物粒度逐渐由0~2μm向2~4、4~6μm偏移;不同钙处理条件下,钢中均存在粒径小于1μm和粒径为1~5μm的MnS、CuxS夹杂物,后者或单独存在,或同AlN、CaS夹杂复合;粒径为5~10μm区间,钢中的夹杂物基本以钙的氧、硫化物为主。与钙处理前相比,钙合金添加量为0.67、1.00、1.67kg/t钢时,粒径小于1.0μm的微细夹杂物减少幅度分别为68.06%、87.50%、94.94%。钙合金添加量为1.67kg/t钢时,可以去除钢中绝大部分的微细夹杂物。 Ca alloy was added into the liquid steel during RH refining,and the results show that Ca concentration in final Si steel sheets is insignificant,about 0,2×10-6 and 4×10-6 when the added amount of Ca is 0.67,1.00 and 1.67 kg/t steel,respectively.With the increase in the added Ca alloy amount,the inclusions in the steel gradually change from those of 0~2 μm to those of 2~4 and 4~6 μm.Under different Ca treatments,there exist MnS and CuxS inclusions whose size is below 1 μm as well as MnS and CuxS ... 
2013-02-28 161 5.8

日本住友金属成功地开发了一种资源节约型高强度无取向电工钢SXRC,这种电工钢是通过固溶铌适度抑制位错的合并对消而得到一种特殊的微观组织,因此兼具很高的力学性能和磁性,特别适用于HEV、EV驱动电机转子。而且,不使用昂贵的镍就可以达到期望的强度,合金成本可控,是一种优越的资源节约型产品。 Sumitomo metal industries ltd of Japan successfully developed a type of high strength non-orientation electrical steel SXRC of resources-saving.The steel has both high mechanical performance and good magnetic property thanks to the special microstructure produced by the formation of Nb solid solution serving to appropriately inhibit the combination and cancellation of dislocations.The material is,in particular,suitable for manufacturing rotors of HEV and EV driving motors.Besides,expected streng... 
2011-06-28 160 5.8

对低温加热工艺生产的以AlN为主抑制剂的高磁感取向硅钢高温退火过程进行中断实验,借助电子背散射衍射技术对高温退火过程中高斯晶粒的演变进行了研究.在升温过程中高斯晶粒平均尺寸先减小再增大.800℃时取向分布函数图出现高斯织构组分,但强度很弱,高斯晶粒偏离角在10°以上;900℃时高斯晶粒平均生长速率超过其他晶粒;950~1000℃时高斯晶粒异常长大,偏离角3°~6°;在1000℃之前高斯取向晶粒相比于其他晶粒没有尺寸优势. The high-temperature annealing process of high permeability grain-oriented silicon steel with AlN as an inhibitor was studied by interrupting test.The evolution of Goss texture in this process was analyzed by electron back-scattered diffraction.It is found that the Goss grain size first decreases and then increases with the rise of temperature.Goss texture appears in the orientation distribution function at 800 ℃,but the intensity is very weak and the deviation angle is more than 10°.The average... 
2014-03-28 193 5.8

【作者】 张煜; 朱国辉; ...
2013-03-28 148 5.8

本实用新型涉及一种硅钢片抓取平台,其包括抓取框架,包括抓取框架,所述抓取框架上设有多个支架,对应于非切割区域的支架上设有大真空吸盘,对应于切割区域的支架上设有小真空吸盘。本实用新型结构简单,通过多个真空吸盘来进行硅钢片的抓取也不会损坏加工后的硅钢片,还提高了硅钢片的搬运效率。此外,通过气动系统实现对吸盘的自动吸气,提高了对吸盘操作的便利性。
2021-04-01 163 6.8

本实用新型公开了一种将硅钢片堆栈模块化的电机转子,包括:堆栈模块、转子端板和电机轴;堆栈模块卡接在电机轴的外侧,且堆栈模块的两端通过转子端板连接固定;堆栈模块包括多个相互连接的硅钢片,每个硅钢片上均设有连接件,硅钢片通过连接件相互连接。本实用新型通过在硅钢片上增设连接件将多个硅钢片叠加成堆栈模块,降低了固定难度和管理难度,而且可以使用机器人自动化产线的大规模生产,生产效率高。
2021-03-18 183 6.8

本实用新型涉及一种硅钢片叠压精准定位设备,包括压台、压板和仿形燕尾键,所述压台上开有与仿形燕尾键下端相对的限位槽,所述压板设置与压台上方,所述压板上开有与仿形燕尾键上端相对的限位孔。本技术方案当硅钢片叠放压合之后,仿形燕尾键可以去除,并能够在硅钢片组成的铁芯上形成燕尾槽,用于后期燕尾键的组装,且能够保证燕尾槽内的结构规则,便于后期燕尾键组装。
2021-11-22 189 6.8

利用OM、SEM、TEM等实验方法研究了卷取工艺对一种新型含铜无取向电工钢晶粒度和析出相的影响。结果表明,该电工钢热轧带卷取后的晶粒尺寸为18~24μm,在卷取过程中,热轧带中有一定数量的第二相析出,经EDS能谱及选区电子衍射分析,这些析出相主要为AlN。随着卷取工艺的变化,该电工钢的晶粒度大小变化不明显,析出相的类型、尺寸大小不发生改变,体积分数发生一定的改变。 The effects of coiling process on grain size and precipitates of a new copper-bearing non-oriented electrical steel were investigated by OM,TEM and other experimental method.The results show that the grain size of hot-rolled bands after coiling is 18~24 μm.The second phases precipitate during coiling process.They are mainly AlN by EDS spectra and selected area electron diffraction.With the change of coiling process,the grain size of the electrical steel does not change significantly;the type and... 
2011-06-28 163 5.8

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