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本发明特别涉及一种控制边部翘皮的热轧电工钢的生产方法和生产系统,属于钢表面质量检测技术领域,方法包括:建立热轧电工钢边部翘皮的数据库,数据库包括翘皮类型及各翘皮类型的翘皮发生原因和翘皮发生的区域;对待质检的热轧电工钢表面进行识别,并对比数据库,获得待质检的热轧电工钢表面翘皮的翘皮类型;根据待质检的热轧电工钢表面翘皮的俏皮类型获得该类型翘皮的翘皮发生原因和翘皮发生的区域;根据翘皮发生原因和翘皮发生的区域,调整生产操作,用以减少热轧电工钢的边部翘皮;通过对边部翘皮进行准确分类及识别,能够准确的分辨出边部翘皮的产生原因,采取有针对性的措施防止缺陷扩大,最大程度的降低缺陷发生量,提高质量控制水平。
2021-07-28 205 6.8

本发明涉及金属冶炼工艺,尤其是一种降低无取向硅钢W800冶炼成本的方法,开吹阶段,着火后,加入头批渣料,石灰加入量占石灰总加入量的70%,石灰石加入量占石灰石总加入总量的100%,轻烧白云石加入量占轻烧白云石总加入总量的100%,待化渣后,枪位降低;化渣后将剩余30%石灰加入,加入剩余石灰过程中利用矿石调整温度;吹炼后期,并逐步压枪,终点拉碳枪位至1.4m,并使枪位在此高度不少于30s;到达冶炼终点。本工艺通过降低转炉渣量、提碳降氧和提高终点温度来减少铁水锰氧化量和促进氧化锰还原量,进而降低RH金属锰加入量,降低生产成本。
2020-12-31 174 6.8

基于简化的取向硅钢片模型,系统地对不同的交流激励下的硅钢叠片内铁损、交链磁通和空气中指定位置的法向漏磁的分布进行了\"单片级\"的测量,并建立了相应的硅钢叠片级问题的三维有限元分析模型,进行了大规模的数值计算分析。模型实验和数值分析的结果表明垂直进入硅钢片的漏磁通和损耗呈现浅透入的特点,在硅钢片内引起的涡流损耗在总铁损中占据了\"举足轻重\"的份额。用电磁场有限元分析软件MagNet瞬态场时步法计算结果与测量结果相吻合,说明本文方法研究复杂的硅钢叠片问题的有效性。 The measurement and 3D finite element analysis of the iron loss,interlinkage flux inside the laminated silicon steel sheets and the magnetic flux densities at the specified positions are carried out based on a verifying silicon steel sheet model.The modeling results show that the leakage flux vertically through the silicon steel sheets has the peculiarity of shin effect,and the eddy current loss caused by the AC leakage flux is a significant component of the total iron loss.The calculated result... 
2013-05-28 173 5.8

本文对某厂硅钢DR510温度、成分及过程控制水平和成品的组织、力学性能进行了研究,并在此基础上提出了工艺优化方案,有一定的借鉴和推广价值。 In this paper,the critical process and the products quality,including temperature,composition and process controlling level,the organization and mechanical properties of the finished product,were studied.On the basis of that the optimized technical plan provided,and this control technology is worth using and spreading. 
2012-05-28 174 5.8

一种厚度≤0.15mm无取向硅钢带,其组分及wt%为:Si:2.0~6.5%,Mn:0.13~0.40%,S≤0.020%,P≤0.020%,Als:0.15~0.9%,C≤0.010%;工艺:经冶炼、浇注成坯后热轧至中间坯厚度;冷轧;常温脱脂;光亮罩式退火;经碱洗后涂覆;分条。本发明在保证铁损P1.0/400£13W/kg,磁感B2000³1.5T下,还使钢带厚度公差不超过±0.005mm,最小叠装系数³0.92完全满足连续冲制要求。
2021-11-15 195 6.8

【作者】 欧阳帆; 肖侃; ...
2023-05-09 274 5.8

采用双辊薄带连铸工艺试制了2.6 mm厚5.28%Si-1.11%Al高硅钢薄带,对比了1050℃×5 min正火及不正火铸带280℃冷轧至0.5 mm后,再经900~1100℃退火的磁性能。结果表明,高硅钢铸带显微组织为等轴晶组织,正火后铸带边部晶粒长大,中心层晶粒变化较小。成品中析出物主要为较粗大的AlN和AlN+MnS复合析出物,尺寸为0.5~2.5μm。与不正火试样相比,正火试样成品铁损大幅降低,磁感小幅下降;随退火温度的升高,两种工艺下铁损和磁感都是先降低后升高,在1050℃出现最低值。 2.6 mm thickness 5.28% Si-1.11% Al non-oriented high silicon steel was produced by twin roll thin strip casting.Magnetic property of the strip un-normalized and normalized at 1050 ℃×5 min was contrasted after cold rolled to 0.5 mm at 280 ℃ and 900-1100 ℃ final annealing.The results show that microstructure of the strip is equiaxed crystal.The surface grain is coarsened and the center layer grain has little change of the normalized strip.The main precipitates are AlN and MnS+AlN with 0.5-2.5 μm s... 
2013-06-28 180 5.8

研究了热处理工艺(退火温度、保温时间、冷却方式)对含Mn的Fe-6.5wt%Si高硅钢热轧带的显微组织及硬度的影响。结果表明,退火温度对Fe-6.5wt%Si合金的组织和显微硬度均有较大影响,随退火温度升高,平均晶粒尺寸和显微硬度均明显增大。小于1 h退火时,晶粒长大缓慢,而长时间(>1 h)退火时,一些次表层晶粒将发生异常长大。水冷组织比空冷组织略细小,但水冷显著降低了显微硬度。Mn含量提高能抑制850℃退火时晶粒的长大,并且促进退火后高硅钢的软化。 The influences of heat treatment process(annealing temperature,heating time,cooling methods) on the microstructure and microhardness of Fe-6.5wt%Si high silicon steel containing manganese for hot rolled strip were studied.The results show that the annealing temperature has a great effect on the microstructure and microhardness of Fe-6.5wt%Si alloy,and as the annealing temperature increases,the average grain sizes and microhardness will significantly increase.When annealing time for less than 1 h... 
2023-05-12 1.45k 5.8

本发明公开了一种取向硅钢极薄带的工业连续化生产方法,包括异步轧制、脱脂、热处理、急速冷却、涂绝缘层、烘干烧结、卷带收集各工序;其中,异步轧制中使用异步比为1:1.05~1:1.24;脱脂、热处理、急速冷却、涂绝缘层、烘干烧结、卷带收集工序为连续化生产工艺;热处理工序中,第一步为预热,预热温度为500℃~700℃,预热时间4秒~120秒;第二步为相变热处理,相变热处理温度为820℃~920℃,相变加热时间100秒~600秒;急速冷却工序中,钢带30秒内降温到350℃以下。优点在于:实现工业化连续生产取向硅钢极薄带,有效提高产能,生产的取向硅钢极薄带制备高磁感、低铁损等磁性能。
2021-07-31 175 6.8

结合工业化生产的无取向硅钢,进行了RH精炼喂CaSi线去除钢中的非金属夹杂物试验研究。针对不同的钙处理条件,分析了CaS夹杂生成热力学,观察了夹杂物的形貌和尺寸分布,确定了夹杂物的类型、数量,探讨了钙处理后钢中夹杂物的变化规律。结果表明,本试验条件下,钙处理可以有效抑制MnS、AlN夹杂物的生成,有效促进钢中微细夹杂物的聚合、上浮、去除,钢质纯净度明显提高。经过合适的钙处理后,钢中的夹杂物以独立存在的CaO为主,同时有少量含CaO、SiO2、MgO的复合夹杂,没有发现CaS夹杂存在。这部分夹杂物的尺寸集中分布在2~20μm,数量约为1.8×105个/mm3。 Experimental study on removal of non-metallic inclusions in non-oriented silicon steel obtained from industrial production by CaSi wire feeding during RH refining process was carried out.The thermodynamics of CaS inclusion formation was analyzed,the morphology and the size distribution of inclusions were observed,and the numbers and types of inclusions were also determined for the steel specimens treated under different calcium treatment conditions.Furthermore,the variation of inclusion characte... 
2013-01-28 186 5.8

一种变压器硅钢片组装装置,包括:底板,夹持机构,设于底板,组装组件,数量为一对,均设于夹持机构的两端,包括放置构件,放置构件设有推进机构;夹持机构用于变压器内壳的固定,组装组件用于硅钢片的叠装操作。本实用新型在进行变压器的加工时,方便进行变压器的叠装操作,提高了变压器叠装的效率,提高了变压器叠装的自动化程度,降低了操作人员的工作强度,具有较强的实用性。
2021-11-02 154 6.8

6.5%Si硅钢具有优异的磁学性能和广泛的应用前景。本文综述了6.5%Si硅钢的物理、机械及磁学特性,讨论了传统轧制、温轧、薄带连铸、快速凝固、CVD、粉末轧制等不同制备工艺的关键技术及特点,概括了6.5%Si硅钢在高效节能电机、汽车马达及磁屏蔽等领域中的主要应用,介绍了硅钢的制备技术取得的研究进展,并指出了其广阔的发展前景。 6.5% Si silicon steel has good magnetic properties and wide applications.In this paper physical and mechanical magnetic properties were summarized,and key technology and characteristic of several preparation methods,such as traditional rolling,warm rolling,thin strip continuous casting,rapid solidification,CVD and powder rolling,were discussed.Main applications of 6.5% Si steel in the fields of high-efficiency electrical motors,automobile motors,transformer cores and magnetic shielding were gene... 
2012-06-28 189 5.8

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