钢厂
高牌号无取向电工钢热轧板常化退火组织的EBSD分析
借助于EBSD对比研究了常化退火对高牌号无取向电工钢热轧组织和织构演变的影响,分析了常化退火对热轧板各厚度层织构的演变规律。结果表明,常化退火改善了热轧组织的均匀性,并弱化了热轧变形的γ纤维织构。升高常化退火温度,可增大热轧板的晶粒尺寸,提高{100}和{110}织构组分占有率,有利于提高无取向电工钢成品板的磁性能。 Effects of normalizing annealing on microstructure and texture of high-grade non-oriented electrical steel hot-rolled sheet were investigated by EBSD. Emphasis was put on the effects of normalizing annealing on texture evolution in the sheet thickness. The results show that the hot-rolled microstructure homogeneity is improved and the γ-fiber texture is weakened by normalizing annealing treatment. The grain size of hot-rolled sheet and intensity of the {100} and {110} favorable texture can be in...
CN202180042492.9涂布的晶粒取向电工钢板及其生产方法
本申请提供了涂布的晶粒取向电工钢板及其生产方法。在一个示例性实施方案中,所述方法包括生产具有约2.5至约4重量%的硅、约0.005至约0.1重量%的碳和约90至约97.5重量%的铁的熔融钢。将熔融钢浇铸成板坯并且然后冷轧成具有表面的板。使用脱碳退火对板进行脱碳,然后使用重结晶退火进行重结晶以生产晶粒取向电工钢。施加涂层覆盖所述表面,其中所述涂层包括有机可辐射固化交联剂和光引发剂。通过将涂层暴露于辐射源来固化涂层。
CN202110781803.5一种取向硅钢的磁畴细化方法及应用
本发明提供了一种取向硅钢的磁畴细化方法,属于高磁感取向硅钢生产技术领域技术领域,包括:采用激光在带钢表面烧蚀出若干沟槽;采用腐蚀液对所述沟槽进行腐蚀,获得刻槽;其中,所述沟槽与带钢宽度方向的夹角为0‑20°;所述沟槽的深度为0.5~20μm,宽度为30~200μm;所述刻槽深度为0.5~30μm、宽度为30~300μm。该方法能够显著的细化磁畴,降低取向硅钢片单位损耗,同时细化磁畴的效果能够承受800℃‑900℃的消除应力退火。本发明还提供了一种取向硅钢的磁畴细化方法在取向硅钢生产中的应用。
无取向电工钢HW600高温变形抗力的研究
在Gleeble-3500热/力模拟试验机上对HW600钢进行高温压缩试验,研究在不同试验条件下的变形抗力。试验结果表明:变形温度对变形抗力的影响最为显著,在相同的变形速率下,随着变形温度的升高,变形抗力降低;在同一变形温度下,变形速率增大,变形抗力增加;在同一变形温度、变形速率下,随着变形程度的增加,变形抗力急剧增大,真应变达到0.1后,变形抗力增加趋势变缓。 The high-temperature compression test is done for HW600 steel with Gleeble-3500 thermal simulation testing machine to research its resistance to deformation under different test conditions.It is showed from result that deformation temperature has greatest effect on the resistance,and along with the temperature getting higher the resistance lowered under same deformation rate;the resistance increases along with deformation rate getting greater under same temperature;and under same deformation tem...
CN202011626114.9硅钢片卷材加工用张力机构以及硅钢片剪切机
本发明公开了硅钢片卷材加工用张力机构以及硅钢片剪切机,包括安装架、转动装置和按压装置,安装架的上安装块、连接块和下安装块组成凹槽,转动装置包括下转轴和转动驱动单元,下转轴水平设置,可转动地安装于下安装块上,设置于凹槽中,按压装置包括有上转轴和按压驱动单元,上转轴水平设置于下转轴的上方,可转动地安装于上安装块上,设置于凹槽中,并且可沿上安装块上下运动,其中,上转轴可与下转轴抵接。根据本发明的硅钢片卷材加工用张力机构以及硅钢片剪切机,可加强硅钢片卷材输送过程中的张力,降低硅钢片卷材输送的位置偏差率,提高产品合格率,提高原材料利用率,从而提高生产效率。
CN202022991890.0一种新型的去角硅钢片
本实用新型提供了一种新型的去角硅钢片,包括硅钢片本体,所述硅钢片本体包括叠放区和防护区,所述硅钢片本体设有防护结构,所述防护结构包括叠放区上设有的多个均匀分布的降噪凹槽,所述防护区上下两端分别设有多个防护条,且两两防护条之间设为连接槽,每个所述防护条皆包括与硅钢片本体连接的防护层和减震层,所述防护区底部两侧分别设有减震柱,所述防护区中间设有贯穿孔,所述贯穿孔内设有绝缘螺栓。本实用新型能降低噪音和减少震动影响,从而避免使得变压器寿命及功能性降低。
电工钢显微结构和疲劳性能的研究
研究了电工钢SXRC的显微结构和疲劳性能,并与DP钢进行了比较。结果表明,退火温度低温化能够有效的抑制电工钢的再结晶。该钢在固溶铌的作用下,能够在保证电机磁性的同时具有一定的强度。与DP钢相比,SXRC钢的抗疲劳性能更好。 The microstructures and fatigue properties of the electrical steel SXRC we re investigated, and the properties were also compared with the steel DP. The results show that the recrystallization of the electrical steel can be suppressed at lower annealing temperature. The steel presents favorable motor magnetic and also a compatible strength with the help of solid-solution Nb. Compared with the steel DP, the fatigue resistance of the steel SXRC is preferable.
轧制力优化对20辊冷轧硅钢厚度精度的影响
轧制力是影响冷轧带钢厚度精度的关键因素。为实现高精度的冷轧带钢厚度控制,通过优化变形抗力模型参数和摩擦系数模型参数提高冷轧轧制力模型计算精度,并使用指数平滑法的自学习算法保证轧制力精度的稳定性。在首钢股份公司迁安钢铁公司20辊森基米尔轧机生产线进行S12硅钢钢种轧制力优化试验,将优化的模型参数应用于L2并投入现场生产,结果表明该优化方法不仅提高了轧制力设定精度,而且减小了冷轧硅钢的厚度超差长度,提高了成材率。 The rolling force is the key factor which influences the accuracy of cold-rolling strip thickness. To implement high precision control of cold-rolling strip thickness,we optimize the deformation resistance model parameters and friction coefficient model parameters to improve the calculation precision of cold-rolling force model,and use exponential smoothing self-learn algorithm to ensure the stability of rolling force accuracy. In Shougang Qiangang 20-high Sendzimir mill single stand production ...
CN202123248776.X一种变压器铁芯硅钢片叠装对齐工装
本实用新型公开了一种变压器铁芯硅钢片叠装对齐工装,包括叠装平台、定位板、推齐板和下压板;定位板和推齐板分别位于叠装平台的两侧,下压板位于叠装平台的上方;定位板用于对铁芯长度或宽度侧进行定位;推齐板平推铁芯使各硅钢片抵靠定位板而对齐;下压板下压铁芯使各硅钢片叠装紧密。本实用新型提供的一种变压器铁芯硅钢片叠装对齐工装,能够提高铁芯生产精度,并提高硅钢片叠装效率。
无取向硅钢钢液增钛原因分析
对无取向硅钢炼钢全流程钢液增钛的原因进行了分析,认为铁水钛含量、转炉出钢温度、转炉下渣量、精炼渣TiO2含量、钢水罐及RH浸入管混钢种生产是影响钢液增钛的主要原因。通过采取低钛铁水冶炼,减少转炉下渣量,提高出钢温度,添加白灰改质精炼渣等措施,均能够降低钢液中的钛含量。 After analyzing the causes leading to increased content of titanium in molten nonoriented silicon steel during whole steelmaking process, it was concluded that such factors as content of titanium in hot metal, tapping temperature from converter, quantity of roughing slag entered into the ladle from converter, content of TiO2 in refining slag, molten steel ladle car,carrying out the steelmaking of different steel grades by the same ladle and same RH immersion tube were the main causes ...
CN202122483513.0一种硅钢片表面涂漆装置
本实用新型公开了一种硅钢片表面涂漆装置,包括平台,所述平台的上表面固定安装有固定框,固定框的内顶壁开设有矩形槽,矩形槽的两侧内壁转动连接有丝杠,且固定框的侧面设置有用于驱动丝杠转动的驱动电机,丝杠的表面螺纹连接有移动块,移动块的下表面固定安装有连接杆。该硅钢片表面涂漆装置,在对硅钢片进行喷涂时,能够将硅钢片挂在挂钩上,并启动驱动电机带动丝杠转动,从而使硅钢片移动至雾化喷头的位置后,在喷涂泵和旋转电机的作用下对其进行旋转喷涂,从而有效的提高了喷涂的均匀度,同时喷涂完成后,驱动电机反转,并启动暖风机,在硅钢片向外移动的过程中通过蛇形管道对其进行热风干处理,简单便捷,有效的提高了工作效率。
Fe-6.5%Si高硅钢的性能及制备技术
Fe-6.5%Si高硅钢是一种具有高磁导率、低矫顽力和低铁损等优异软磁性能的合金,但是其室温脆性和低的热加工性能严重影响了其在工业领域的应用。综述了Fe-6.5%Si高硅钢的性能,评述了合金的改性法、特殊轧制法、快速凝固法、沉积扩散法、粉末冶金法等制备工艺。 It is well known that 6.5%Si high silicon steel is one kind of soft magnetic materials with higher re-lative permeability,lower coercive force and iron loss than those of conventional industrial silicon steel.However,their room-temperature embrittleness and poor workability limit their practical applications in the industry.The pre-paration technique such as modification treatment on alloy,special rolling,rapid solidification,CVD and powder me-tallurgy is reviewed.

