钢厂
稀土在无取向电工钢中应用的研究进展
稀土元素在许多钢中发挥着独特而且不可替代的重要作用。半个世纪以来,它的作用已经在各种低合金和特殊合金钢中的研究及应用中得到充分的证明;然而,作为具有稀土资源优势的中国,在属于重要功能材料的无取向电工钢中稀土的应用却落后于国外,本文就中国稀土在无取向电工钢中的应用研究作简要的评述,希望能够进一步推进此领域的研究,并且促进中国稀土在无取向电工钢中应用技术的发展,缩短与国外差距,并提出了在此应用领域今后需深入开展的研究方向。 Rare earth elements play a unique and irreplaceable role in a lot of steels,it has given the full proof by the practice of various low alloy steels and special alloy steels since half century.However,as our country has the advantage of rare earth resources,RE application technology in non-oriented electrical steels has lagged behind abroad.The application researches of rare earth in non-oriented electrical steel in our country are briefly reviewed in this paper,which hope to promote the research...
优化脱氧工艺改善低碳低硅钢钢水可浇性
介绍了重庆钢铁股份有限公司炼钢厂生产低碳低硅钢的脱氧工艺,对连铸过程中水口结瘤的原因进行分析,并提出了优化措施。生产实践表明:钢水中的活性氧质量分数控制在10×10-6~30×10-6时,单中包浇铸炉数由6~7炉提高到11~12炉,同时能保证连铸顺行和减少铸坯气孔。 The deoxidation process of low-carbon and low-silicon steel in steel plant of Chongqing Steel was introduced.The nuzzle clogging was analyzed and some measures were put forward.Production experiments showed that when the active oxygen was controlled between 10×10-6~30×10-6,the amount of furnaces would rise from 6~7 to 11~12,which will make the casting process work well and reduce casting holes.
CN202122492040.0一种硅钢片快速叠片装置
本实用新型公开了一种硅钢片快速叠片装置,包括模具箱,所述模具箱的上表面开设有放置槽,放置槽的内底壁开设有滑动调节槽,滑动调节槽的内侧壁转动连接有调节丝杆,调节丝杆的外表面螺纹连接有滑动块,滑动块的上表面分别固定连接有第一电动伸缩杆和支撑板,第一电动伸缩杆的顶端固定连接有固定板,固定板的上表面开设有滑槽。该硅钢片快速叠片装置,通过设置支撑板、放置板、第二电动伸缩杆与缓冲橡胶块,能方便将硅钢片进行叠放,通过设置第一电动伸缩杆、固定板、支架板、滚动轮与复位弹簧,便于对已经放置好的硅钢片进行固定,从而使整个装置具有方便快速自动叠片的效果,降低工作人员的劳动强度,提高硅钢片叠片的效率。
初次再结晶退火工艺对3%Si取向硅钢组织和织构的影响
试验研究了0.3 mm取向硅钢冷轧板(/%:0.046C,3.07Si,0.09Mn,0.029P,0.004S,0.005A1)的退火温度(760~880℃7 min)和退火时间(820℃3~9 min)对该钢的晶粒尺寸,再结晶和织构的影响。结果表明,最佳初次再结晶退火工艺为820℃5 min,该钢的平均晶粒尺寸为14.20μm,完全再结晶率为92%,不利{111}<110>结构含量为3.16%,有利织构{111}<112>,{012}<001>和高斯织构含量分别0.40%,4.73%和2.46%。 The effect of annealing temperature(at 760 ~ 880 X.for 7 min) and time(at 820℃ for 3~9 min) on grain size,recrystallization rate and texture of 0.3 mm cold-rolled sheet of oriented silicon steel(/%:0.046C,3.07Si,0.09Mn,0.029P,0.004S,0.005Al) has been tested and studied.Results show that with optimum recrystallized annealing at 820℃ for 5 min,the silicon steel average grain size is 14.20 fun,the complete recrystaUization rate is 92%,the unfavourable-texture {111}< 110 > content in steel is ...
高硅钢温轧过程压下率及中间退火对组织、织构的影响
传统轧制法制备6.5wt.%高硅钢过程中温轧工艺具有显著不同于3 wt.%Si的电工钢的特点及组织织构特征,是开发新型基于织构优化的高硅钢的关键环节。采用EBSD技术对通过热轧、温轧、冷轧及退火工艺制备0.3mm厚的6.5wt.%Si电工钢板的组织和织构进行分析,重点研究温轧过程中的中间退火和大、小压下率组合以控制织构。结果表明,在热轧退火板是部分再结晶组织的情况下,一次性温轧或先小形变量、中间退火后再大形变量的工艺可得到更多的Goss晶粒;经过最终退火后Goss取向会发生偏转,形成部分黄铜取向,而{111}〈112〉取向的晶粒内形核生成近Goss取向的再结晶晶粒;大压下量轧制是最终组织中{111}取向晶粒较多的主要原因。 Warm rolling,a key process of developing new type high-Si electrical steel based on texture optimization,has significant different characteristics from 3wt% Si steel in conventional preparing process. 0. 3mm thickness 6. 5wt. % Si steel,obtained by a series of processes including hot and warm rolling,intermediate annealing and then cold rolling,was analyzed from microstructure and texture by EBSD,which are utilized mainly for investigating the intermediate annealing process and the combination o...
高牌号无取向电工钢技术发展及应用
对高牌号无取向电工钢国内生产情况、工艺技术、产品性能及应用领域等进行了阐述,并探讨了高牌号无取向电工钢产品的发展趋势。 This paper introduces basic facts on the production status,process technology and products’ properties and their applications of non-oriented electrical steel with high grade at home,and then discusses the development trend on technology for producing the non-oriented electrical steel with high grade.
CN202123056302.5一种具有自动接料机构的变压器硅钢加工用防刮伤剪床
本实用新型公开了一种具有自动接料机构的变压器硅钢加工用防刮伤剪床,包括支撑座,所述支撑座的上端固定连接有相互对称的进料机构与出料机构,所述进料机构上设置有调节机构,所述进料机构与出料机构之间设置有切割底座,所述切割底座的两端设置有气缸,所述气缸的内侧设置有切割机构,所述切割机构上设置有卡接机构,所述出料机构的一侧设置有接料机构;本实用新型涉及剪床技术领域。该具有自动接料机构的变压器硅钢加工用防刮伤剪床,切割后的硅钢,通过出料机构输送至承接板上,挡板与侧板能够使得硅钢能够自动叠放整齐,自动叠放整齐相对于人工接料可明显节省时间,提高剪床的运行效率,减少人力成本,提高运行的安全性。
CN202122099620.3一种取向硅钢绝缘层烘干装置
本实用新型公开了一种取向硅钢绝缘层烘干装置,涉及取向硅钢技术领域,为解决现有取向硅钢在表面层进行烘干的时候,能源大多没有循环利用,不够节能的问题。所述烘干装置主体的上端面设置有加热泵回送机构,所述加热泵回送机构通过输送管道与烘干装置主体连接,且输送管道设置有两个,两个所述输送管道的两端分别贯穿并延伸至烘干装置主体和加热泵回送机构的内部,所述烘干装置主体的内部设置有烘干输送腔体,所述烘干输送腔体的上方和下方均设置有过滤网,且过滤网设置有两个,两个所述过滤网的一侧均设置有加热机构。
基于Matlab的硅钢连续退火线纠偏系统分析及仿真
硅钢连续退火线是无取向硅钢生产的成品线。由于受机组布置的影响,带钢经转向辊进出口活套后,当套量达到60%后就出现偏离生产线的情况,从而影响最终产品的质量及成材率,甚至损坏设备。针对某冷轧厂硅钢连续退火机组出口活套入口处带钢跑偏开展纠偏研究,利用Matlab对该纠偏系统进行动态仿真研究,分析系统的稳定性。 Silicon steel continuous annealing line is non oriented silicon steel production of finished product line.Due to the influence of unit layout,strip by roll Import & Export loop,when the set volume reached 60% after the emergence of deviation from the production line,thus affecting the quality of the final product and the rate of finished products,and even damage the equipment.For the export of continuous annealing line in cold rolling silicon steel strip deviation rectification loop at the e...
CN202180018973.6电磁钢板的加工方法、马达以及马达铁芯的制造方法
本发明相对于板厚较薄的电磁钢板提供不会导致磁特性劣化的基于激光的加工方法。在对电磁钢板进行使用激光的熔断并将该电磁钢板加工成规定的形状的电磁钢板的加工方法中,使上述激光的扫描速度成为10000mm/min以上来进行上述熔断。
无取向电工钢退火工艺研究现状
综述了退火温度、时间对无取向电工钢磁性的影响。退火温度主要影响无取向电工钢不同织构的占有率,退火时间主要影响晶粒尺寸的大小,晶粒尺寸的变化对织构的形成也有一定的影响。磁感最高点出现在纤维组织完全消失,(111)面织构组分较弱的组织状态。铁损的降低主要依赖于磁滞损耗的降低,织构的影响不大。 The effects of annealing temperature and time on the non-oriented electrical steel magnetic properties were reviewed.Annealing temperature and time mainly affects the different textures share and the grain sizes of non-oriented electrical steel respectively.Changes of the grain sizes also have a certain effect on textures formation.The highest point of the magnetic induction value in the fibrous tissue completely disappears and{111} plane texture has a lower state of the component content.Iron l...

