硅钢资料

对1990~2010年在我国申请的冷轧无取向硅钢涂层的专利数量、专利技术领域分布进行了统计,对典型涂层专利技术进行了分析,探讨了无取向硅钢涂层的发展趋势。统计分析结果表明,目前无取向硅钢涂层典型的专利技术主要有自粘结涂层、无铬含稀土元素涂层、含钼酸盐环保涂层及采用有机-无机纳米杂化材料为主成膜物形成的涂层等。无取向硅钢涂层发展的趋势主要是无铬环保的半无机、半有机型涂层。 The patent quantity of cold-rolled non-oriented silicon steel coating and distribution of technology fields applied in China in 1990-2010 were summarized.The analysis results indicate that typical patent technologies include self-adhesion coating,chromium-free and with rare earth element coating,environment-friendly and with molybdate coating,coatings with organic-inorganic hybrid materials as main forming agent and so on.The main development trends of coatings on silicon steel are among semi-in... 

本发明公开了一种高效无取向硅钢极薄带的工业连续化生产方法，其包括异步轧制、脱脂、热处理、急速冷却、涂绝缘层、烘干烧结、卷取收集各工序；其中，异步轧制中的异步比为1:1.05～1:1.24；脱脂、热处理、急速冷却、涂绝缘层、烘干烧结、卷取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℃～720℃，预热时间20秒～125秒；第二步为相变热处理，相变热处理温度为840℃～940℃，相变热处理时间100秒～600秒；急速冷却工序中，30秒内将钢带温度降温至350℃以下。优点在于:实现工业化连续生产无取向硅钢极薄带，有效提高产能，生产的无取向硅钢极薄带具备高磁感、低铁损等磁性能。

综述了国内外大钢铁企业与研究机构采用获得抑制剂法生产低温高磁感取向硅钢的开发及应用情况,分析了以该法生产高磁感取向硅钢过程中抑制剂的控制技术,包括固有抑制剂组成方案、气态渗氮方式与工艺及高温退火工艺的制定.研究表明,固有抑制剂组成方案的设计思路大体一致,化合物抑制剂以AlN为主、硫化物为辅,同时添加少量Sn,Sb等单元素抑制剂,但组成元素含量存在一定差别;在脱碳退火后用NH3进行非平衡渗氮处理已成为气态渗氮的主要方式,但最佳方式仍未明确,具体选择需依据实际生产条件,相应脱碳及渗氮工艺的控制条件差别较大;高温退火工艺中升温制度差别不大,升温阶段退火气氛中N2含量的选择存在差别.此外,分析了抑制剂控制技术目前存在的关键问题,并指出了进一步的研究方向. The current application and exploitation on production of low-temperature high magnetic induction grain-oriented silicon steel with acquired inhibitor method at both iron and steel enterprises and research institutions in the world are reviewed. The control techniques of inhibitors, which include the composition design for inherent inhibitors, nitriding method and process, and secondary recrystallization annealing, are thoroughly analyzed and proposed. It is indicated that the design ideas for i... 

本发明揭示了一种无取向硅钢及其生产方法。该无取向硅钢的化学成分：Si:2.95%~3.15%，Al:0.75%~0.95%，Si+2Al:4.6%~4.9%，Mn:0.5%~0.7%，Sn:0.03%~0.04%，Cu≤0.03%，Cr≤0.03%，Ni≤0.03%，Nb≤0.004%，V≤0.004%，Ti≤0.004%，C≤0.0025%，P≤0.015%，S≤0.0015%，N≤0.004%，余量铁；Mn/S≥380，Al/N≥200；无取向硅钢的再结晶晶粒尺寸50~80μm。本发明在保证磁性能的同时，提高了强度，解决了现有技术所存在的磁性能和强度的兼顾问题。

本发明提供一种改善表面麻点缺陷的薄规格中低牌号无取向硅钢及其生产方法，成分C≤0.0025％，1.2≤Si≤1.65％，0.25％≤Mn≤0.35％，0.06％≤P≤0.11％，0.1％≤Als≤0.2％，S≤0.0025％、N≤0.0025％，Ti≤0.0025％，其余为Fe及不可避免的杂质。与现有技术相比，本发明采用较低氢气浓度，防止炉内氧化铁皮还原，减轻碳套辊的腐蚀程度，减少碳套辊结瘤率，改善带钢表面质量；采用合理合金成分设计，提高带钢的力学强度，降低碳套辊结瘤对带钢表面的影响程度，改善带钢表面质量。产品厚度为0.35mm，板面麻点发生率降低，无手感，且辊身周长周期范围内麻点个数≤5个。

本发明提供了一种无取向电工钢，包括：C0.001～0.010％，Si0.5～4.0％，Mn0.05～0.8％，Al0.2～1.5％，P≤0.002％，S≤0.0015％，O≤0.002％，N≤0.0015％，各成分均为质量百分比；还提供一种无取向电工钢制造方法，包括：冶炼钢水、薄带连铸、常化酸洗、冷轧以及退火涂层。本发明中，在冶炼钢水时，控制钢水中C、Si、Mn、Al、P、S、O以及N几种成分的含量，且通过常化工艺，可以有效控制无取向电工钢成品的产品质量，具有较低的铁损以及较高的电磁性能，另外整体制造流程比较短，能够达到节能环保的目的，而通过冷连扎，有利于提高产品的质量、成材率和生产效率。

本实用新型公开了一种冲制电机硅钢片用高速冲床的润滑油温控调节装置，包括换热机体、呈上下布置在换热机体内的冷冻水出水汇总管与冷冻水进水分配管以及冷冻水热交换换热管，冷冻水进水分配管、冷冻水热交换换热管和冷冻水出水汇总管依次连接，冷冻水进口外接冷冻水流量调节阀，冷冻水出口流出的冷冻水回流至冷却水池；换热机体顶部的一侧、另一侧分别开有进油口、出油口，进油口设油温检测盲管，油温检测盲管内设感温探头，感温探头与冷冻水流量调节阀信号连接。采用冷冻水换热冷却高温润滑油，带走油液热量，通过对冷冻水的流量控制调节，冷却后的油液温度恒定，以满足冲床润滑、冷却需要，以及减少冲床的换油周期。

利用EBSD技术研究了电工钢中不同的柱状晶尺寸及退火工艺下{100}织构的演变规律。结果表明,初始晶粒尺寸的影响最显著。细小柱状晶热轧后经过常化处理,组织已均匀,但中心层有强{100}织构。粗大柱状晶中{100}织构的遗传性强,常化及中间退火后,中心层仍有粗大的以{100}取向为主的晶粒;脱碳退火后才能完成组织均匀化和织构梯度的弱化。常化时的升温速度也对织构演变存在影响,低的升温速度有利于{100}织构的保留,但升温速度的影响没有初始晶粒尺寸及退火次数的影响显著。细小柱状晶样品经过热轧及三次退火工艺适合制备取向电工钢。 Evolution of {100} texture of different columnar grains and annealing process was investigated in electrical steels with the help of EBSD technique.The results show that the effect of initial grain size is the strongest.The initial fine-grained specimen shows uniform microstructure after the normalizing process,while {100} grains appear preferentially in the central layer of sheets.The heredity of {100} texture in the initial coarse-grained specimen is more significant.{100} mainly-oriented coar... 

结合实际生产0.4%Si无取向硅钢，统计了不含Sn和0.025%Sn无取向硅钢的磁性能变化，利用金相显微镜、X射线衍射仪观察分析不同成分下试样的显微组织和微观织构。试验结果表明：Sn元素可以显著降低无取向硅钢的晶粒尺寸，0.025%Sn试样的平均晶粒尺寸比不含Sn减小28.4%;加入Sn元素后抑制了无取向硅钢中不利于磁性能的{111}面织构组分强度，提高了对磁性能有利的{100}面织构组分强度，0.025%Sn与不含Sn相比磁感均值从1.756 T提升至1.768 T,铁损均值从5.476 W/kg降低至5.204 W/kg,明显改善了无取向硅钢磁性能。 In this paper combined with the actual production of 0.4% Si non oriented silicon steel, the magnetic properties of non oriented silicon steel without Sn and 0.025% Sn were counted. The microstructure and microtexture of samples with different compositions were observed and analyzed by metallographic microscope and X-ray diffraction. The results show that: Sn can significantly reduce the grain size of non oriented silicon steel, and the average grain size of 0.025% Sn sample is 28.4% smaller tha... 

本发明涉及一种控制高牌号硅钢退火产生月牙印缺陷的方法，多次调整硅钢退火线入炉及出炉张力参数，使带钢处于预设悬垂量内；本发明避免高速运行下带钢撞在炉辊上，从而产生月牙印缺陷，提高了产品的质量。

介绍了国内、外电工钢极薄带的生产现状及市场应用的情况,以及典型生产企业的生产规模、产品性能和应用领域,指出扩大高牌号无取向电工钢生产、提高产品质量是目前电工钢发展的迫切要求。 The production situation and market application of ultra thin electrical steel strip at home and abroad were described.The production capability,product property and application area of typical corporation were introduced.The results indicate that the urgency needed of electrical steel development is expanding high-grade non-oriented electrical steel production and improving products quality at present. 

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...