硅钢资料

研究了退火温度对3.1%Si无取向硅钢组织和磁性能的影响规律。结果表明:退火温度从940℃提高至1 000℃,平均晶粒尺寸由98μm增加到145μm,铁损P_1.5/50从2.576 W/kg降低至2.408W/kg。随着退火温度的升高,γ不利织构组分强度逐渐降低,{111}〈112〉织构组分强度降低约16%,磁感B₅₀逐渐升高,磁性能水平提高。 The effects of annealing temperature on microstructure and texture and magnetic properties of 3.1%Si non-oriented silicon steel were investigated in this paper.The results showed that,when the annealing temperature increased from 940℃ to 1 000℃,the average grain size of metallographic structure increased from 98μm to 145μm,the iron loss value P_1.5/50 decreased from2.576 W/kg to 2.408 W/kg.And as the annealing temperature increased,the strength of the unfavorable texture componentγgrad... 

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... 

结合工业化生产过程中出现的同卷带钢头、尾磁性能差异现象,对50SW1300牌号无取向硅钢同卷带钢头、尾试样的夹杂物、晶体织构和显微组织进行了分析研究。结果表明,夹杂物、晶体织构是影响成品钢卷磁性能的重要因素。夹杂物是造成同卷带钢头、尾铁损差异的主要原因。夹杂物数量越多,尤其是小尺寸的夹杂物数量越多,对成品带钢的磁性能影响越大,对于本试验而言,AlN和MnS是影响成品带钢磁性能的主要夹杂物。晶体织构是造成同卷带钢头、尾磁感应强度差异的主要原因。有益的{100}和Goss织构含量越大,有害的{111}<110>和{111}<112>织构含量越小,即有益织构与有害织构含量比越大,成品带钢的磁感应强度越大。 Based on the industrial manufacture of non-oriented silicon steel sheets 50SW1300, the magnetic property variation of head and tail of the same finished steel sheets was discussed by analyzing non-metallic inclusion, crystal texture, and microstructure. Results show that, both of the non-metallic inclusion and the crystal texture will affect the magnetic properties significantly. The non-metallic inclusion is the key factor of the core loss variation of head and tail of the same finished steel s... 

本发明提供一种无取向电工钢的制造方法，包括连铸和RH精炼工序，连铸坯化学元素质量含量为C≤0.0050%、Si：0.50~2.20%、Mn：0.20~1.20%、P：0.020~0.040%、S≤0.0020%、Als≤0.0050%、Ti≤0.0005%、N≤0.0025%，余量为Fe及不可避免的杂质；且0.4≤Mn/Si≤0.6；RH精炼工序，脱碳结束后向钢中同时加入铝粒、微碳硅铁复合脱氧，使用铝粒脱除氧量与使用微碳硅铁脱除氧量之比为1/15~1/5，钢中主要生成低熔点MnO‑SiO2‑Al2O3夹杂，能被快速去除，钢水洁净度高。本发明电工钢与现有的电工钢相比，在相同磁感应强度下铁损更低。

针对硅钢连续退火机组的主要能源介质消耗现状,对现有生产工艺和设备研究采取机组循环用水、增加清洗段漂洗级数等措施可节约大概27 m3/h的过滤水量,并可减少78%的弱碱处理量;将炉子烟气换热系统增加一级余热回收,每年回收的余热相当于583 t标煤消耗,可节约蒸汽5 368 t。 The present situation of energy consumption for silicon steel annealing line is analyzed in this paper.In existing process and equipment conditions,increasing the number of cleaning series will lead to a saving of about 27 m3/h of filter water and reduce 78 % of weak base processing volume.For the flue gas heat-exchange system,adding a waste heat recovery device will recover waste heat equivalent to 583 tons of standard coal per year,corresponding to a saving of steam 5 368 t per year. 

以不断增长的薄板坯流程为背景,与传统流程对比分析了薄板坯流程无取向电工钢热轧晶粒组织特征;以50W800和50W1300钢为典型实例,探讨了两种流程下成品板晶粒组织、织构、磁性能及其磁时效行为的基体差异和相关原理。研究表明,薄板坯流程热轧板组织较粗大,有利于在成品板中获得粗大的晶粒和有利的织构,从而得到较低的铁损和较高的磁感。然而,薄板坯流程会造成第二相粒子的细小弥散分布与不充分析出,容易因磁时效而使磁性能恶化。 Based on the rapid development of compact strip production(CSP) processing,the characteristics of hot band grain structure produced by CSP processing were analyzed in comparison with those of conventional technology.The basic differences in grain size,texture,magnetic properties and the magnetic aging behaviors of the final sheet products produced by the two processing technologies and the corresponding principles were discussed,while steel 50W800 and 50W1300 were taken as examples.It is indicat... 

通过热力学计算与模拟试验研究了含钒钛取向硅钢中氮化物析出相的析出规律与析出行为,并探讨了含钒钛元素的氮化物析出相作为薄板坯连铸连轧流程制备取向硅钢中辅助抑制剂的可行性.研究表明,在所冶炼的含钒钛取向硅钢的成分范围内,Ti N在钢液凝固末期便具备析出的热力学条件,而Al N与VN只可能在凝固后的α+γ或α+Fe3C两相区内析出.含钒钛取向硅钢中氮化物析出相以成分复杂的复合析出相为主,且随着钒钛加入量的增加,钢中抑制剂析出相总的分布密度由于含钒钛元素的氮化物析出相的增加而明显提高,使抑制剂抑制初次再结晶晶粒正常长大的能力得以加强,最终成品的磁感应强度值B8由1.857 T提升至1.898 T.同时,加入不高于0.007%的Ti与不高于0.005%的V不会影响中间脱碳退火工序的脱碳效果以及高温退火净化阶段硫、氮的脱除效果,其形成的含钒钛元素的纳米级氮化物析出相适合作为薄板坯连铸连轧流程制备取向硅钢的辅助抑制剂. The precipitation behavior of nitride precipitates in grain-oriented silicon steel containing vanadium and titanium elements produced by thin slab casting and rolling process was studied by thermodynamic calculation and simulation experiment. The feasibility of nitride precipitates containing V and Ti elements as auxiliary inhibitors was also investigated. It is found that Ti N is likely to precipitate at the final stage of solidification in the grain-oriented silicon steel,but VN and Al N can p... 

 

本实用新型公开了一种无取向硅钢喷涂用即时干燥装置，包括干燥箱，所述干燥箱内滑动连接有加热台，所述干燥箱顶部设置有加热箱，所述加热箱左右两侧分别设置有进风管和出风管，所述进风管和出风管均与干燥箱连通，所述加热箱内部从左到有依次固定连接有风机和加热网，所述干燥箱内设有带式传送机，通过带式传送机使喷涂过后的硅钢在干燥箱中移动，首先经过加热台加热，使涂层表面干燥硬化，不会变形，然后再经过加热箱吹出的风对硅钢表面的涂层进行进一步的烘干，从而保证干燥过程中涂层不会起褶皱。

【作者】 王磊； ...

本发明涉及一种含磷高磁感无取向硅钢的生产方法，工艺路线：铁水脱硫－转炉冶炼－RH精炼－连铸－热轧－酸洗－冷轧－连续炉退火－涂层－性能检验－包装，具体步骤包括：1)将钢水冶炼至目标成分后采用连铸方式将钢水铸成坯；2)热轧板坯加热炉均热段板坯温度950～1050℃，终轧温度控制在780～830℃，卷取温度600～680℃；3)酸洗后冷轧，控制冷轧整体压下率80％以上，至成品厚度，增加剪切带组织；4)连续退火炉快速加热段温度设定1000～1150℃，增加有利织构组织形核；均热段温度设定750～830℃，全氮气干气氛保护，退火工艺速度110～150m/min，满足晶粒度8～4级。本发明在减少硅、铝、锰合金添加量的情况下，改善铁损提高磁感性能，提高机械性能。

本实用新型公开了一种变压器铁芯用硅钢片卷放料装置，其包括底座、换位旋转机构，换位旋转机构包括设置于底座上端的旋转座、换位旋转驱动组件、至少两个以上的放卷工位，换位旋转驱动组件用于驱动旋转座相对于底座绕设置的换位旋转轴线旋转，至少两个以上放卷工位以换位旋转轴线为圆心呈环形间隔设置于旋转座，放卷工位包括有可转动安装于旋转座上的放卷筒。当其中一个放卷筒进行放卷送料时，另外的放卷筒进行上卷，当该放卷筒放卷完后，换位旋转驱动组件驱动旋转座转动，使得另外的装有硅钢片卷的放卷筒转动至放卷送料的位置，而该放卷筒就可进行上卷，如此循环操作，实现了放料装置对硅钢片卷的同步放卷放料和上卷，提高生产的效率。