硅钢资料

本发明涉及一种取向硅钢热轧钢带的板形控制方法，所述取向硅钢热轧钢带的工艺流程包括铸坯加热过程、轧制过程及层流冷却过程；其中轧制过程中采取取向硅钢与普钢交叉轧制的方式；粗轧过程采取R1轧制1道次、R2轧制5道次的1+5轧制工艺，并控制轧制工艺参数；精轧过程中控制F1～F7轧制工艺参数。本发明通过设定合理的交叉轧制工艺及取向硅钢热轧工艺，使取向硅钢的轧制稳定性大幅提高，取向硅钢带形控制良好，凸度控制在30～50μm之内，楔形控制在30μm之内，板形平坦度控制在25iu之内；从而为冷轧工序提供了优质原料。

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 ... 

本发明公开了一种低铁损高磁导率无取向电工钢及其生产方法，所述生产方法包括以下步骤：钢水连续浇铸成板坯，板坯经加热炉加热，再经热轧得到热轧板，然后经空冷和水冷后在500～650℃进行卷取；热轧板经常化处理、盐酸酸洗；酸洗后在可逆轧机上进行冷轧；最后经成品退火，退火温度为840～900℃，加热时间为240～500s；然后以不超过3℃/s的冷却速度冷却至500℃以下；涂覆绝缘涂层、固化，后经二次退火，即可得到低铁损高磁导率无取向电工钢，其磁性能满足P1.5/50≤3.50W/kg，μ1.5≥3800Gs/Oe，B5000≥1.76T的要求。

为了消除硅钢在连续退火机组产生的浪形缺陷,对浪形缺陷产生的主要原因进行了分析。制定了相应控制措施,对炉内带钢张力、冷却段输出、碳套辊与带钢的同步性、无氧化炉燃烧状态等参数进行了调整;在生产组织上安排高低牌号宽窄规格穿插生产、定期更换碳套辊等,实施后效果明显。 The main cause leading to waviness defects of silicon steel is analyzed in order to eliminate the waviness defects of silicon steel in continuous annealing line.And thus corresponding measures for controlling these defects are made by means of adjusting these parameters such as the tension of silicon steel coils in continuous annealing furnace,the output in cooling section and the combusting condition of the non-oxidation furnace as well as keeping the synchronization between carbon sleeved roll... 

根据新日铁、JFE及浦项等国外钢铁公司2008年以来在日本专利局、欧洲专利局(EP)及世界知识产权组织(WIPO)申请公开的有关生产Hi-B取向电工钢典型专利技术,概述了近年来国外大型钢铁企业采用低温板坯加热(坯加热温度<1 280℃)技术生产Hi-B取向电工钢主要技术重点,即将调节关键化学成分Al、N、Sn及Sb等与工艺改进相结合。最后介绍了国外大型钢铁企业采用低温板坯加热技术生产Hi-B取向电工钢实例。 The latest developments on technology for manufacturing Hi-B grain oriented electrical steel sheets developed by Nippon Steel Corp.,JFE Steel and POSCO were described according to the patents published by World Intellectual Property Organization,Japan Patent Office and European Patent Office over the recent years.The low temperature slab heating process(particularly slab-heating temperature<1 280 ℃) together with suitably adjusting key chemical elements such as Al,N,Sn and Sb elements was the... 

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 ... 

本发明涉及一种提高取向硅钢冷轧加工性的生产方法，工艺流程为：冶炼、连铸、热轧、常化、酸洗、冷轧、脱碳渗氮、涂MgO、高温退火、涂绝缘层及热拉伸平整；粗轧中坯厚度35‑45mm，两段常化后进行带钢横向分段式冷却水分布。本发明通过对热轧中坯厚度、终轧温度及卷取温度，常化冷却水量及控制方式的调控，使轧前表层晶粒尺寸降低5‑10μm、珠光体体积分数降低6％，轧材冷轧加工性明显改善、成材率可提高8％以上。通过后续冷轧、脱碳退火和高温退火等工序处理，可保证完善的二次再结晶组织及良好磁性能。

取向硅钢热轧板中组织、织构梯度对发展完善的二次再结晶十分关键,通过对2种不同热轧工艺生产取向硅钢的组织、织构进行研究,结果表明:采用后道次大压下热轧工艺时热轧板表层再结区晶粒平均尺寸增加,再结晶区厚度增加,高温退火后二次晶粒尺寸减小;采用后道次大压下热轧工艺热轧时,热轧板中平均等效应变高,热轧板厚度心部{100}〈011〉和{100}〈001〉位向取向强度降低,({111}～{113})〈110〉位向取向强度提高,高温退火后{110}〈001〉位向偏离角降低,磁性能提高。 The texture and microstructure gradient in hot rolled grain oriented silicon steel strip was one of the essential factors to achieve a perfect secondary recrystallization.The texture and microstructure of grain oriented silicon steel strip as-rolled with two different hot rolling parameters was investigated.The results show that with big reduction at the end rolling process,the intensity of {100}〈011〉 and {100}〈001〉 orientation reduces with({111}-{113})〈110〉 orientation intensity enhanced in hot... 

本发明提供了一种超高磁感无取向硅钢及其制造方法和在汽车发电机生产中的应用，成分：C：≤0.005％、Si：0.5‑1.2％、Mn：0.1‑0.5％、P：0.01‑0.1％、S：≤0.004％、Al：≤0.005％、N：≤0.005％、Ti：≤0.003％，余量为铁和不可避免的杂质。通过成分设计，配合CSP薄板坯连铸连轧工艺、常化工艺，不用添加贵金属元素，不添加贵金属元素，流程短、成本低、磁感高、性能稳定；节省成本的同时，具有优良的磁性能，采用本发明生产的汽车发电机铁芯，与常规产品生产的铁芯相比，重量可减轻15％以上，缩小了发电机尺寸，满足汽车发电机小型化、高效化的要求。

一种高强型高频电磁性能优异的硅钢薄带板，钢中化学成分按重量百分比计为：C≤0.0027％、Si3.10％～3.35％、Als0.80％～1.2％、Mn0.20％～0.85％、P≤0.050％、S≤0.0020％、N≤0.0020％、Ti≤0.0020％、V≤0.0020％、Nb0.0050％～0.080％，其余为Fe和不可避免的杂质。本发明的无取向硅钢薄带产品用于新能源汽车驱动电机的制造，其强度高，中高频电磁特性优异。

介绍了CSP工艺生产无取向电工钢各工序的设备特点、采用的工艺控制手段和电工钢产品质量情况,结合生产实践证明了马钢CSP工艺开发的无取向电工钢产品丰富了薄板坯连铸连轧的品种结构,发挥了薄板坯连铸连轧生产无取向电工钢性能均一、稳定的特点。 The equipment characteristic,the process control method and the quality of non-orientated silicon steel by CSP process were introduced.Combined with the production situation,it is proved that production of non-orientated silicon steel developed on Masteel CSP line would enrich product structure of thin slab continuous casting and rolling,and it exerts stable performance of non-orientated silicon steel. 

本发明公开了一种切口耐蚀性良好的无取向硅钢及其生产方法，属于电工钢生产技术领域。本发明的无取向硅钢包括以下质量百分比的元素：Si：0.2～2.7％，Mn：0.15～1.0％、Als：0.5～1.0％，Cr：0.1～0.3％；Ni:0.2～0.5％，P：≤0.01％，其余为Fe及不可避免的杂质。其生产工艺为：铁水预处理、转炉炼钢、真空处理、连铸、加热、热轧、酸洗、冷轧、退火处理和涂覆绝缘层。本发明通过合理的成分配比以及相匹配的生产工艺进行生产，最终得到了切口耐蚀性优良的低铁损、高磁感的无取向硅钢，从而能够有效满足电工钢的使用需求。