钢厂
制备{100}织构无取向电工钢方法综述
{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...
冷轧连退硅钢线工程中SF炉电加热体的焊接技术
通过对连退线SF炉内的电加热体的焊接技术进行总结分析,得出焊接时应采用的主要方法,采用本焊接方法可提高电加热体的焊接速度和焊接质量,保证了焊接质量和施工工期。 SF furnace for continuous annealing line heating body welding technology summary,the main method used in welding,welding method by using the electric heater to improve the welding speed and welding quality through the implementation of this method to ensure the welding quality and Construction period.
冷轧压下量对取向硅钢极薄带显微组织的影响
观察了取向硅钢极薄带经冷轧至不同厚度,并经过不同工艺热处理后的显微组织及亚结构。结果表明:冷轧压下量越大,显微组织中位错密度越高,冷变形组织越多,等轴晶粒越少;增加冷轧压下量可以使试样的再结晶温度降低,当钢带厚度为0.08 mm时,在650℃退火时就能发生明显的再结晶。 Microstructure and substructure of the grain oriented ultra-thin silicon steel sheets is analyzed,which are rolled down to different thickness and treated with different heat treatment process.The result shows that there are higher dislocation density,more cold deformation structure and less equiaxed crystal grain in microstructure of the steel sheets with more cold rolled reduction.Increase of cold rolled reduction will decrease recrystallization temperature,and when thickness of the steel shee...
脉冲磁场热处理对CGO取向硅钢脱碳退火过程中组织和织构的影响
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...
冷轧无取向电工钢的试制
利用本钢技术中心试验厂技术手段,并与北京钢铁研究院合作,试制了用作家电用电机、微电机、小电机或部分中型电机铁芯的冷轧无取向电工钢。试制钢硅含量小于0.5%,钢板表面平滑,公称厚度0.5mm,且厚度均匀偏差小,性能测定结果表明,产品的磁性能、力学性能满足其使用要求。 BX STEELTechnology Center pilot plant using technical means,and with Beijing Iron and Steel Research Institute,trial cold rolled non-oriented electrical steel that has been used as appliance motor core,micro motor core,small motor core,or part of the medium-sized motor core。Trial steel of silicon content is less than 0.5%,steel plate surface is smooth,the nominal thickness of 0.5mm,and the thickness deviation is small,performance measurement results show that the magnetic properties,mechanical p...
