硅钢资料

本发明揭示了一种高硅无取向电工钢及其生产方法。该方法包括：1）钢水冶炼并连铸成坯；2）加热并保温，之后热轧得到热轧卷板，其中粗轧出口温度940±20℃，精轧终轧温度840±20℃，卷取温度650±20℃；3）常化，常化温度((732~742)+3000[Si])℃，常化时长4min~5min；4）常化后直接进行冷轧，而后连续退火和涂层，退火温度940℃~990℃且退火时长1.5min~3min；5）涂层处理后的钢板加工成型，而后进行去应力退火，退火温度为((761~766)+3000[Si])℃。如此，在保证磁性能的同时，解决了冷轧难度大的问题。

一种超低硫硅钢冶炼工艺方法，属于炼钢技术领域。本发明公开了一种超低硫硅钢冶炼工艺方法，主要步骤包括KR铁水预处理—转炉冶炼—RH真空精炼—连铸保护浇注。在冶炼超低硫硅钢前，铁水包、转炉先处理1‑2炉低硫钢种，清洗设备；KR脱硫采用三次扒渣法，第一次扒除高炉出铁带渣，将铁水S含量脱至目标值后进行第二次扒渣，然后开通铁水包底吹，软吹后进行第三次扒渣，脱S后铁水S≤0.0005％，铁水兑入转炉后，热态下清理铁包结渣；转炉使用硫含量小于35ppm的低硫废钢，且废钢比不超过15％；RH和连铸过程均使用低硫合金及原辅料。本发明可使连铸结晶器钢水中S含量小于15ppm达标率由原来的48.6％左右提高至95％以上。

绝缘涂层可以有效提高硅钢片的耐蚀、耐腐、磁、绝缘等性能，因此取向硅钢涂装绝缘涂层是取向硅钢生产过程中重要的一环。本文对取向硅钢含铬无机绝缘涂层以及氮化铬涂层的性能优缺点进行了介绍，并对国内无机含铬取向硅钢绝缘涂层及氮化铬涂层的研究现状进行了综述。最后对未来含铬无机绝缘涂层的研发方向进行了展望。 Insulation coating can effectively improve the corrosion resistance of silicon steel sheet, such as corrosion, magnetic, insulation performance, thus oriented silicon steel insulation coating is the important part of oriented silicon steel production process. In this paper, the inorganic insulation coating oriented silicon steel containing chromium and chromium nitride coating performance advantages and disadvantages are introduced.In addition, the research status of insulation coating and chrom... 

本实用新型属于硅钢技术领域，具体的说是一种硅钢前处理高液回流装置，包括机体；所述机体的侧端固接有一号导管；所述一号导管上安装有二号导管；所述机体的顶端固接有连接管；所述连接管上安装有入泡管；所述二号导管的内侧壁固接有电机；所述电机的输出端固接有扇叶；所述二号导管的顶端内侧壁固接有定位板；所述定位板的侧端转动连接有旋转叶轮；所述二号导管的底端固接有排泡管；通过一号导管和二号导管的配合可以把溢出的泡沫进行导向，通过扇叶和旋转叶轮的配合可以使泡沫快速流动，再通过排泡管排出进入机体的内部，可以使泡沫循环使用，避免泡沫的溢流造成环境的污染及碱液的浪费。

本实用新型公开了一种镀铝锌硅钢板平整装置，包括辊轮整形装置与曲面压平装置，所述辊轮整形装置包括第二底板，所述第二底板的上表面固定连接有两个驱动电机，所述驱动电机的输出端固定连接有第二推杆，所述第二推杆的输出端固定连接有滑动块，所述滑动块的左侧壁转动连接有转杆，所述转杆的中部固定连接有辊轮；所述曲面压平装置包括第一底板、顶板，所述第一底板与顶板之间固定连接有四根导柱，所述导柱的中部滑动连接有上模座，所述上模座的下表面可拆卸连接有上模具，所述第一底板的上表面固定连接有下模座，所述下模座的上表面可拆卸连接有下模具。本实用新型中，辊轮整形机与曲面压平机结合能够有效地提高钢板的压平后的平整度。

针对宝钢集团、日本新日铁住金和JFE公司公开的相关专利等资料,总结了国内外高强度无取向电工钢的研究进展,分析了不同电工钢的化学成分、生产工艺及产品性能,指出固溶强化、细晶强化、析出强化、位错强化都有可能被用来提高无取向电工钢的强度,并阐述了四种强化方式的优缺点;指出在高强度无取向电工钢的研发过程中,需根据其具体用途确定目标性能,再采用合适的强化手段,最终实现力学性能、磁性能和生产性能之间的平衡。 The research progress of high strength non-oriented electrical steels at home and abroad is summarized according to related patents brought into the public by Baosteel,Nippon Steel & Sumitomo Metal corporation and JFE corporation.The characteristics of chemical composition,production technology and properties of products in the patents are analyzed.Each of solution strengthening method,fine-grain strengthening method, precipitation strengthening method or dislocations strengthening method ma... 

本发明属于冶金技术领域，涉及一种超短流程稀土取向硅钢及其制备方法，化学组成及其重量百分比为Si：2.0～4.5％，C：≤0.003％，Y：0.001～0.05％，Mn：0.15～0.35％，Al：0.03～0.04％，Cu：0～0.5％，S：0.025～0.04％，N：0.011～0.013％，其余为Fe和不可避免的杂质元素。制备工艺包括：钢水冶炼、薄带连铸、冷轧、再结晶退火。与常规生产方式相比，取消了连铸、粗轧、热连轧、常化和脱碳退火等工序，极大简化了生产流程。通过添加稀土元素钇，促进了抑制剂的析出，还显著细化了薄带连铸硅钢的凝固组织，提高组织均匀性，获得了均匀细小的等轴晶，优化了取向硅钢的性能。

研究的两种取向硅钢（%:No1-0.042C、3.16Si、0.009Al、0.07Mn、0.50Cu、0.015S、0.0084N和No2-0.040C、3.20Si、0.014Al、0.22Mn、0.49Cu、0.016S、0.008 2N）由50 kg真空感应炉冶炼,锻成（mm）350×120×35板坯,经1 250℃30 min加热,开轧温度1 100℃,5道次热轧成2.3 mm板,终轧温度950～1 000℃。实验结果表明,两热轧板沿板厚方向存在组织和织构的不均匀性,热轧板次表层为再结晶组织,有较强的Goss织构组分;中心层为形变组织,具有典型的形变织构。含0.22%Mn的No2钢次表层{110}〈001〉织构组分比含0.07%Mn的No1钢弱,中心层{001}〈110〉织构组分大大强于0.07%Mn No1钢,导致两者磁性能差异,0.22%Mn No2钢磁感应强度(B₈₀₀)和铁损(P_1.7/50)分别为1.87 T和1.24 W/kg,0.07%Mn No1钢分别为1.88 T和1.18 W/kg。 Studied both grain-oriented silicon steels（%:No1- 0.042C,3.16Si,0.009Al,0.07Mn,0.50Cu, 0.015S,0.0084N and No2-0.040C,3.20Si,0.014Al,0.22Mn,0.49Cu,0.016S,0.0082N） are melted by a 50 kg vacuum induction furnace,forged to（mm） 350×120×35 slab,heated at 1 250℃for 30 min,with beginning rolling temperature 1 100℃hot-rolled to 2.3 mm plate by 5 passes,finishing-rolled at 950～1000℃.Test results show that the structure and texture along thickness of both hot-rolled plates are inhomogeneous:the subsurface ... 

研究了退火温度和退火时间对电沉积硅钢试样中的断面层组织、硅在试样中的分布情况、织构分布和磁性能的影响。结果表明:退火温度为1000℃、退火时间为210 min时得到的试样晶粒分布均匀、硅在试样中分布均匀、硅平均浓度为6.3715%(接近6.5%)。试样的织构分析及磁性能检测的结果表明,在较高温度下延长退火时间可增加{100}和{110}面织构,降低铁损,所得试样的磁性能较为良好。 The effect of annealing temperature and time on the microstructure, distribution of silicon,texture and magnetism of the high silicon steel prepared by electrodeposition was investigated. The results showed that after annealing at 1000℃ for 210 min, the mean grain size of steel was about 190 μm with a uniform grain size distribution, and the silicon is also uniformly distributed on the entire cross section with an average Si concentration 6.3715%(close to 6.5%); With the increasing annealing tim... 

介绍了攀钢冶炼电工钢过程硫含量变化以及过程回硫、增硫情况,采取针对性措施,如:提高铁水装入量、转炉采用石英砂代替复合造渣剂造渣、RH脱硫等,降低钢中硫含量。结果表明:采取相应措施后,电工钢炼成率大幅提高,成品w[S]≤0.008%的比例由改进前的62%提高到92.4%,取得了明显的冶金效果。 The resulfurization and the change of sulphur content in production of electrical steel is analyzed.The targeted measures have been taken,such as increase the loaded quantity of liquid iron,quartz sand replaces the composite slagging agent in the converter and RH desulfurization to decrease the sulphur content of the steel.The result shows,after the measures have been taken,the finished product ratio of electrical steel increase a lot.The ratio of sulfur content of finished product no more than ... 

通过对35W300高牌号0.35 mm冷轧无取向电工钢卷(/%:0.002C、2.71Si、0.22Mn、0.015P、0.003S、0.0020N、0.55Als)头、中、尾组织、织构及对应的磁性能的试验研究,发现因热轧时12 MPa高压水连续冷却造成接触轧辊的钢卷头、中、尾在不同温度下轧制,卷取后钢卷头部处于卷心、温度略高而冷却速度略低于钢卷尾部,致使钢卷纵向组织、织构不同,成品卷头、尾各250 m内磁感逐渐增加,铁损逐渐降低,250 m外至钢卷中部磁性能稳定。通过将热轧辊的冷却方式改为周期冷却和卷取后的层流冷却改为钢卷70 m后开始冷却,至钢卷尾部70 m前停止冷却的方式使得钢卷纵向铁损差异明显减小,磁感差异略有改善。 According to the test research on structure and texture of head,meddle and end of 35W300 high grade 0.35 mm cold rolled non-oriented electrical steel strip coil(/%:0.002C,2.71Si,0.22Mn,0.015P,0.003S,0.002 0 N,0.55Als) and corresponding magnetic properties,It is found that due to 12 MPa high pressure water continuous cooling the roller in hot rolling process led to head,middle and tail of strip rolling at different temperature and after coiling the head of strip coil being in center of coil led t... 

采用中、厚板坯生产技术对取向硅钢进行了研制和开发,对热轧及后工序样品进行了金相组织观察和EBSD分析,探讨了两种组织及织构的差异性,研究结果表明:除高温退火样品外,中板坯生产的取向硅钢各工序样品平均晶粒尺寸大;厚板坯生产的取向硅钢热轧和常化样品亚表层Goss织构强;中板坯和厚板坯的脱碳退火板织构没有明显区别。中板坯生产的取向硅钢成本低,产品磁性能和质量与厚板坯相当。 Grain oriented silicon steel was researched and developed by medium thickness slab and thick slab.Microstructures observation and EBSD analysis to the samples of hot rolling and following processes were carried out,respectively.The differences between the two kinds of microstructures and textures were discussed.The results show that the average grain sizes of every process samples are larger except that of high temperature annealing samples of grain oriented silicon steel produced by medium thic...