钢厂
CN202110311664.X一种取向硅钢高温退火底板
本发明公开了一种取向硅钢高温退火底板,涉及钢卷生产技术领域,解决了钢卷的尺寸变形导致钢卷切边量过大的技术问题。包括应变诱导板,应变诱导板的板面开设有若干凹槽,相邻凹槽之间于应变诱导板的板面形成凸楞,钢卷放置于应变诱导板的板面上,其中部分的钢卷端面支撑于凸楞上,其余的钢卷端面悬置于凹槽上。本发明通过在应变诱导板上设置凹槽与凸楞,钢卷在高温退火过程中同样受重力产生蠕变变形,但蠕变变形按照凸楞所设定的方向进行,从而将产生的不均匀的“大浪”分割成碎化均匀的“细浪”,使得钢卷边部的变形细小、均匀、可控,从而降低了大象脚变形的缺陷影响程度,减小了钢卷的切边量,提高了成材率,同时能够获得良好的边部板形。
二次冷轧法对薄带连铸无取向高硅钢组织和磁性能的影响
采用双辊薄带连铸技术试制了3.98%Si-0.71%Al无取向硅钢铸带,研究了二次冷轧法对硅钢组织和磁性能的影响。结果表明:硅钢铸带显微组织为等轴晶组织,铸带再结晶较完全,常化对铸带显微组织影响较小。二次冷轧工艺和一次冷轧工艺下,最终退火后成品显微组织为等轴晶组织,二次冷轧法最终退火后的晶粒尺寸小于一次冷轧法。二次冷轧法能够提高成品磁性能. Effect of double cold rolling on magnetic properties and microstructure of 3.98%Si-0.71%Al non-oriented silicon Steel Sheets cast by twin-roll thin strip casting process were investigated.The results show that the structure of the thin strip is equiaxed crystal,the recrystallization is complete and normalizing has lesser effect on microstructure.Using both cold rolled and double cold rolled process,the microstructure is equiaxed grain after final annealing.The average grain size of annealed shee...
EBSD技术在硅钢织构研究中的应用
运用电子背散射衍射(EBSD)和X射线衍射(XRD)技术对硅钢热轧板的织构在板厚方向的分布进行了研究,并分析了两种织构测量方法的特点。EBSD技术能直观给出板厚方向的微观织构,XRD能得到钢板的宏观统计织构信息,结合两种技术的分析,能更直观更精确的研究不同织构在板厚方向的分布。 The texture distribution along the thickness of the silicon steel has been investigated by electron backscatter diffraction(EBSD) and X-ray diffraction(XRD) technique.The characteristics of two technique of texture analysis have been investigated.Combined the two techniques,the texture distribution along the thickness of the silicon steel could be realized distinctly and accurately.
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。
CN202120300684.2一种用于硅钢片叠装的工装
本实用新型公开了一种用于硅钢片叠装的工装,包括安装底座,所述安装底座上设置有限位装置,所述限位装置包括多个水平限位柱和多个竖直限位柱;各个水平限位柱之间的缝隙的尺寸等于其对应放置的硅钢片的宽度,各个竖直限位柱与安装底座的底边之间的距离等于其对应放置的硅钢片的总长度;所述各个竖直限位柱设置在各个水平限位柱之间的缝隙所正对的位置;采用多个水平限位柱和多个竖直限位柱进行水平和竖直方向上均对硅钢片进行定位;使用此工装叠装出来的成品,长短一致,侧面相当整齐;本实用新型,结构简单,操作方便。
普通冷轧取向硅钢中间完全脱碳退火工艺的确定
为了确定普通冷轧取向硅钢最优的中间完全脱碳退火工艺,在其一次冷轧后进行5种不同工艺的脱碳退火处理,借助扫描电镜及电子背散射衍射技术研究了不同工艺脱碳退火后的组织、织构和脱碳效果。结果表明:经5种工艺脱碳退火处理后,初次再结晶的平均晶粒尺寸均约为19μm,且不随退火温度和时间的变化而变化;经840℃×10min工艺退火后的晶粒最均匀,高斯织构位向更准确,高斯织构面积分数最多,为3.1%,可将碳脱至0.003 5%。 In order to determine the optimal intermediate complete decarburizing annealing processes for common grain-oriented(CGO)silicon steel,five kinds of intermediate decarburizing annealing processes were conducted,the microstructure,texture and decarbonization after different decarburizing annealing processes were studied by scanning electron microscopy and electro back-scattered diffraction(EBSD)technology.The results show that the average grains sizes of primary recrystallization were about 19μm a...
CN202030777875.9硅钢片
1.本外观设计产品的名称:硅钢片。;2.本外观设计产品的用途:多片硅钢片用来共同组成马达的转子的其中一个部件。;3.本外观设计产品的设计要点:在于本外观设计产品的形状。;4.最能表明设计要点的图片或照片:立体图。;
ZnO对无铬无取向硅钢绝缘涂层性能的影响研究
主要研究了氧化锌对以Al(H2PO4)3为基料的无铬无取向硅钢绝缘涂层各项性能的影响.用盐雾实验和动电位极化研究了不同氧化锌含量对硅钢绝缘涂层的耐蚀性和电化学行为的影响.采用SEM和体视显微镜对涂层的表面形貌和附着性能进行研究.结果表明,氧化锌含量为4.0%时,氧化锌能完全中和涂层表面的游离磷酸,涂层的耐蚀性和附着性最好;氧化锌含量过少或过多时,涂层的耐蚀性和附着性都较差. This paper studies the influence of zinc oxide on the performance of chromium-free non-oriented silicon steel insulating coating which based on aluminum dihydrogen phosphate.Salt spray experiment and potentiodynamic polarization were used to study the influence of zinc oxide content on the corrosion resistance and electrochemical behavior of the insulation coating of silicon steel.The surface morphology and adhesion of coating were tested by SEM and stereo microscope.The results show that when t...
不同牌号无取向硅钢夹杂物定性定量分析
无取向硅钢中夹杂物的存在会抑止晶粒生长,使基体的均匀连续性中断,其在钢中的形态、含量及分布情况都不同程度影响着硅钢的性能,尤其是对磁性能起关键的作用。因此,全尺度分布考察夹杂物对无取向硅钢夹杂物的研究极为重要。本实验确定了适用于不同牌号无取向硅钢夹杂物全尺度分布的分析方法:样品制备—小样电解—过滤喷金—根据不同牌号的要求选择合适的放大倍率扫描观测—夹杂物颗粒的分类统计。通过统计的结果,结合电解的失重量可以得到不同尺度的体积分布数据。实验分析了不同牌号和工艺无取向硅钢夹杂物的种类、形貌、大小和尺度分布,并初步考查了夹杂物与磁性能的关系,对无取向硅钢的工艺研究具有一定参考价值。 Inclusions in non-oriented silica steel could inhibit the growth of grain and cause discontinuity of micro-structure.The configuration,content and size distribution of inclusion have different effects on the performance of silica steel,especially significant on the magnetic property.Therefore,it is very useful to completely characterize inclusions with full size distribution in silica steel.In our research,full size analysis method for inclusion in silica steel had been established as follows: s...
不同尺寸电工钢样品磁性能检测对比分析
对CSP流程生产的无取向电工钢M50W800不同尺寸样品的磁性能进行了测试和分析,结果表明:采用不同单片检测的磁性能结果与标准的Epstein方圈样品检测对比,存在明显的偏差;且同一尺寸的单片纵横向样品之间相比较,对应的磁性能差异性也较大。几种不同尺寸的单片样品,以320mm×30mm尺寸的纵横向平均值最接近标准Epstein方圈样的性能值,其铁损偏差最小。 The magnetic properties of M50W800 non-oriented electrical steel produced by CSP process were tested and analyzed with samples of different sizes,showing that significant deviation existed compared to that of Epstein square circle sample.In particular,obvious difference in magnetic properties also existed between longitudinal and transverse samples of the same size.For test samples of different sizes,the average magnetic properties of 320mm×30mm samples are the closest to that of Epstein square ...
常化和退火工艺对冷轧无取向硅钢高频磁性能和强度的影响
冷轧无取向硅钢(/%:0.003C,2.35Si,0.22Mn,0.011P,0.002S,0.36A1,0.003 0N)经890℃或940℃3 min常化的2.3 mm热轧板冷轧成0.35 mm薄板。研究了常化温度和800920℃3 min退火对该钢高频(400Hz)磁性能和抗拉强度的影响。结果表明,830920℃退火时高频铁损P10/400值最低,随退火温度增加,晶粒尺寸增大,钢的抗拉强度降低;该钢的最佳热处理工艺为常化温度940℃,退火温度830℃,其抗拉强度Rm、高频铁损P10/400和磁感应强度J50分别为565 MPa,21.5 W/kg和1.69 T。 The cold-rolled non-oriented silicon steel(/%:0.003C,2.35Si,0.22Mn,0.011P,0.002S,0.36A1,0.003 0N) is cold-rolled to 0.35 mm sheet from 2.3 mm hot-rolled plate normalized at 890 ℃ or 940℃ for 3 min.The effect of normalizing temperature and annealing process at 800 920 °C for 3 min on high frequency(400 Hz) magnetic properties and tensile strength of the steel has been tested and studied.Results show that with annealing at 830 920 ℃the high frequency iron loss value P10...
低温普通取向硅钢高温退火过程中高斯晶粒的演变
对低温加热工艺生产的普通取向(common grain-oriented,CGO)硅钢的高温退火过程进行了中断实验,材料为含3.0%Si、0.5%Cu、0.009 8%S(均为质量分数)的以Cu2S为主抑制剂的普通取向CGO钢。原始板坯厚度为230 mm,于1 200℃均热后经4道次粗轧、7道次精轧至2.3mm;热轧板采用两次冷轧法轧至0.3mm,中间完全脱碳退火,最后于1 200℃高温退火。最后样品的磁性能:铁损P17/50为1.182W/kg,磁感应强度B8为1.897T。借助配有EDAX OIM电子背散射衍射(EBSD)系统的ZEISS SUPRA 55VP扫描电子显微镜,对高温退火过程中高斯晶粒的演变进行了研究,结果表明:升温过程中晶粒尺寸增长缓慢,650℃时取向分布函数(ODF)图出现高斯织构组分,但强度很弱,高斯晶粒偏离角小于9°;950℃时高斯晶粒平均生长速度超过其他晶粒;950~1 000℃时高斯晶粒异常长大,偏离角降至约3°;在950℃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 common grain-oriented(CGO)silicon steel was investigated by interrupting test.The samples were rolled from CGO silicon steel slab under low reheating temperature.The CGO silicon steel,taking Cu2S as the main inhibitor,contains3.0%Si,0.5%Cu,and 0.0098%S.The original casting slab is 230mm in thickness.After 1 200℃reheating,four-pass rough rolling and seven-pass finish rolling were conducted to make the thickness of the slab get to 2.3mm.Then the hot rolled...

