钢厂
热轧无取向低硅钢SGG的研制开发及生产
针对川威950的工艺现状,结合无取向低硅钢SGG生产的工艺特点,主要从控制其钢坯加热和轧制以及终轧温度和卷曲温度几方面入手,进行无取向低硅钢生产的工艺控制研究。同时根据近6000吨的生产实践表明,该工艺措施能很好的满足该钢种的需要。 950 process Chuanwei status quo,with non-oriented silicon steel production process features low,mainly from the control of billet heating and rolling and finish rolling temperature and coiling temperature of several aspects,for non-oriented silicon steel production process of low control at the same time According to nearly 6,000 tons of production practice shows that the process measures could well meet the needs of the steel.
CN202111570264.7一种无取向电工钢及其制备方法
本发明提供了一种无取向电工钢,以质量百分比计,其成分包括C:0.0010~0.0050%,Si≤2.5%,Al≤0.01%,Mn≤0.80%,P≤0.10%,S≤0.0070%,N≤0.0030%,其余为Fe及不可避免的杂质。本发明还提供了一种无取向电工钢的制备方法。本发明提供的一种无取向电工钢,不添加偏析或稀土等贵重元素且磁性能好、成材率高,本发明提供的无取向电工钢制备方法,工艺流程简单、生产周期短、制取成本低,且无需热轧板常化。
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...
Fe-6.5%Si高硅钢的性能及制备技术
Fe-6.5%Si高硅钢是一种具有高磁导率、低矫顽力和低铁损等优异软磁性能的合金,但是其室温脆性和低的热加工性能严重影响了其在工业领域的应用。综述了Fe-6.5%Si高硅钢的性能,评述了合金的改性法、特殊轧制法、快速凝固法、沉积扩散法、粉末冶金法等制备工艺。 It is well known that 6.5%Si high silicon steel is one kind of soft magnetic materials with higher re-lative permeability,lower coercive force and iron loss than those of conventional industrial silicon steel.However,their room-temperature embrittleness and poor workability limit their practical applications in the industry.The pre-paration technique such as modification treatment on alloy,special rolling,rapid solidification,CVD and powder me-tallurgy is reviewed.
预退火温度对高磁感取向硅钢初次再结晶织构的影响
对高磁感取向硅钢冷轧板分别进行800、950、1050和1120℃不脱碳的预退火处理,在800℃预退火,成品的磁性能较好。织构分析的结果表明,随着预退火温度升高,初次再结晶后有利织构组分{111}<112>与不利织构组分(118)[110]的比值f(111)/f(118)逐渐降低,初次再结晶织构的变化是成品磁性的影响因素之一。 Preliminary annealing process at different temperatures for cold-rolled strips of a high permeability grain-oriented silicon steel was investigated to study the effect of the annealing temperature on microstructure and magnetic performance of the steel.Results show that the magnetic performances of the products annealed at 800 ℃ are best.Analysis of primary recrystallization texture indicates that with rising temperature,f(111)/f(118) which is the ratio of the favorable component {111}<112>...
CN202123333981.6用于变压器铁芯硅钢片的叠片翻转支架
本实用新型公开了用于变压器铁芯硅钢片的叠片翻转支架,包括槽板,所述槽板内部卡装有转板,转板两侧对称安装有卡杆,槽板底部安装有风扇;所述转板另外两侧对称安装有放置槽,放置槽底部卡装有电磁铁,转板两侧皆设置有两组开关;在开关不受到压力时,此时开关所在电路处于通电状态,开关与电磁铁为电性连接,每个开关独立控制一组电磁铁,电磁铁处于工作状态,电磁铁正常运行产生的磁吸力,使得铁芯硅钢片固定在放置槽内,在使用机械臂取用铁芯硅钢片时,机械臂底部连接的触发条持续压迫开关,此时开关所在电路处于断路状态,开关所控制的相应电磁铁不产生磁力,机械臂可以较为容易的取用铁芯硅钢片。
CN202122739490.5一种硅钢片制作用防止硅胶泄露结构
本实用新型公开了一种硅钢片制作用防止硅胶泄露结构,包括运行组件与固定密封组件,所述运行组件的内侧壁设有固定密封组件,所述运行组件包括板体、第一凹槽、壳体、硅钢片、支撑板、连接块、密封圈、防护板和通孔,所述板体的内侧壁开设有第一凹槽,所述第一凹槽的内部设有壳体,所述壳体的内侧壁设有硅钢片,所述硅钢片的两侧相互对称焊接有四个连接块,四个所述连接块相斥一侧均贴合于第一凹槽的内侧壁,本实用新型首先通过硅钢片两侧密封圈保障密封效果,设置的橡胶管起到二次密封防护作用,并借助其内部的弹簧及U型板实现防偏移的效果,最后一方面可以在壳体相邻组件内侧加胶并且提高其内部硅钢片的厚度,以此实现多重密封防漏。
Fe-6.5%Si高硅钢铁芯与Epstein Square标准单片铁损检测结果对比及数据差异分析
作为一种具有优异高频铁磁性能的合金,Fe-6.5%Si(质量分数)高硅钢在高频工况条件下降损效果明显,对电气行业应用器件高频化、小型化、节能等具有十分重要的意义。通过与取向硅钢测量B-P数据对比,验证了高硅钢高频超低损特性,且轧制高硅钢与日本CVD法生产高硅钢存在基本相同的铁损值。采用国标Epstein Square法对0.30mm高硅钢薄板进行单片测试,并对由0.30mm高硅钢薄板首次装配成的电感器进行铁损测试,对比测试结果表明,元件测试与单片测试数据基本吻合,高磁感应强度条件下,元件测试结果略低于单片测试,分析原因为:线圈引起励磁压降;元件叠片间出现短路,电流增大,损耗增加;气隙板厚度过大。 As one core material with excellent high-frequency ferromagnetism,Fe-6.5%Si performs obviously reduction on core loss in high field frequency which means much to high frequency,minimization,energy conservation in electric industry.Super low loss was verified by drawing B-P curves based on detected experimental data,and which went equal to Fe-6.5%Si thin strip fabricated by CVD in Japan.Fe-6.5%Si was firstly fabricated as inductor in this research,and its core loss was determined for comparison w...
常化温度对TSCR流程制备低碳低硅无取向硅钢组织和性能的影响
在实验室试制了TSCR流程的低碳低硅无取向硅钢,研究了在850~1050℃不同温度常化对冷轧量0.5mm厚钢板再经950℃×7min退火后的组织、织构和磁性能的影响。结果表明:随常化温度的升高,使热轧板晶粒尺寸增大,晶界更清晰,组织均匀性更好;由于第二相AlN和MnS析出物尺寸比较大,使冷轧退火后钢板晶粒也随常化温度升高呈单调增大趋势;γ有利织构和{111}、{112}不利织构与常化温度升高同时增强,但前者增强更多;冷轧板退火后铁损随常化温度升高呈单调下降,磁感呈单调上升趋势。 The low-carbon and low-silicon non-oriented silicon steel was prepared by thin slab casting and rolling(TSCR) in lab.The effect of normalizing at different temperatures in 850-1 050℃on microstructure, texture and magnetic properties of 0.5 mm cold-rolled sheets after annealing at 950℃for 7 min was researched. The results show that with increasing the normalizing temperature,the grain size of hot-rolled sheets increased,the grain boundaries were more clear and the rnicrostructure uniformity was b...
CN202123413110.5一种电机定子硅钢片激光焊接装置
本实用新型涉及一种电机定子硅钢片激光焊接装置,其包括底座;工作台,其安装于所述底座;下压旋转组件,其包括:焊接支座,其安装于所述底座上;用于压紧定子硅钢片的下压组件,所述下压组件位于所述工作台的上方,且可沿垂直于所述工作台的板面的方向移动;用于驱动所述定子硅钢片旋转的旋转组件,其安装于所述下压组件靠近所述工作台的一端,所述旋转组件可绕所述下压组件的轴线旋转;以及激光焊接头组件,其固定于所述底座。通过在焊接工作台上设置下压旋转组件,下压组件可以驱动下压使定子硅钢片压紧,旋转组件可以驱动定子硅钢片旋转,进行下一道焊缝焊接,直到该定子硅钢片所有焊缝焊接完成,使用方便,省时省力。
正火对双辊薄带连铸5.28%Si-1.11%Al无取向高硅钢磁性能的影响
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...

