钢厂
CN202023331940.9硅钢片卷材加工用张力机构以及硅钢片剪切机
本实用新型公开了硅钢片卷材加工用张力机构以及硅钢片剪切机,包括安装架、转动装置和按压装置,安装架的上安装块、连接块和下安装块组成凹槽,转动装置包括下转轴和转动驱动单元,下转轴水平设置,可转动地安装于下安装块上,设置于凹槽中,按压装置包括有上转轴和按压驱动单元,上转轴水平设置于下转轴的上方,可转动地安装于上安装块上,设置于凹槽中,并且可沿上安装块上下运动,其中,上转轴可与下转轴抵接。根据本实用新型的硅钢片卷材加工用张力机构以及硅钢片剪切机,可加强硅钢片卷材输送过程中的张力,降低硅钢片卷材输送的位置偏差率,提高产品合格率,提高原材料利用率,从而提高生产效率。
成品第二次退火工艺对高牌号无取向电工钢35W300组织和性能的影响
对高牌号无取向电工钢35W300的成品进行了第二次退火,对第二次退火后的成品性能、纵横向磁性能差异和组织变化进行了分析。结果表明,随着第二次退火温度的升高,晶粒长大,磁性能优化。铁损平均值下降0.087 5W/kg,磁感平均值升高0.008T。第二次退火温度为820℃的产品的磁性能能够满足用户使用要求。 The product of high grade non-oriented electrical steel 35W300 was annealed at the second time.Microstructure,the difference of magnetic properties in the vertical and horizontal and were studied.The results show that the grain grew up and magnetic properties optimized with the increase of annealing temperature for the second time.Iron loss average declines in 0.0875 W/kg,magnetic induction average increases 0.008 T.The magnetic properties can meet the requirements of users at the second anneali...
CN202111652927.X一种罩式中间退火高牌号无取向硅钢50BW350的生产方法
本发明涉及一种罩式中间退火高牌号无取向硅钢50BW350的生产方法,包括钢水化学成分设计、热轧工艺、冷轧工艺和退火工艺等步骤;钢水化学成分包括C≤0.004%、Si1.80‑2.1%、Mn0.70‑0.90%、Als0.30‑0.45%、P≤0.015%、S≤0.0030%、O≤0.0020%、N≤0.0025%、Sb0.06‑0.12%,余量为Fe。本发明通过特殊的化学设计,添加Sb元素,通过优化产品的结构组织提高电磁性能,适当降低Si含量,并提高Mn元素含量,通过二次冷轧法消除热轧粗大纤维组织的影响,得到了没有表面瓦楞缺陷的高牌号无取向硅钢产品,与传统高牌号生产方法相比,成本较低,生产出的硅钢电磁性能优良。
罩式炉常化工艺对热轧硅钢50W350组织和性能的影响
研究了罩式炉常化工艺对50W350硅钢热轧板组织、夹杂物和性能的影响。研究结果显示,罩式炉常化工艺在温度一定的情况下,随着保温时间延长,硅钢晶粒逐步再结晶并长大,同时析出物也在聚集长大。通过制定合理的罩式炉常化工艺,可以实现硅钢晶粒的再结晶和长大,从而达到连续退火炉常化工艺产品技术要求。 The influence of normalization process with a bell furnace on the structure,inclusions and properties of 50W350electrical steel hot-rolled sheet was studied.The research results showed that:when the steel was normalized at a certain temperature in the bell furnace,the silicon steel grains gradually recrystallized and grew up with the extension of the annealing holding time,and at the same time,the precipitates also gathered and grew up.The recrystallization and growth of the silicon steel grains...
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.
新型无取向电工钢在退火过程中组织和织构取向的演变
通过金相分析和电子背散射衍射技术研究了一种新型含铜无取向电工钢在950℃退火不同时间(3~180s)空冷后的组织和织构取向的演变。结果表明:该钢在退火3s时的主要织构为α和γ线织构,{100}<110>织构最强;退火20s时织构以<111><112>、{111}<110>、{112}<110>、高斯织构和立方织构为主,随着退火时间的延长,高斯织构和立方织构强度呈减弱趋势;合理控制保温时间有利于提高{100}、{110}面织构的占有率。 Evolution of microstructure and texture oriented of a new non-oriented electrical steel during annealing at 950℃for different times(3-180) s and air cooling was studied by metallography and electron back-scattering diffraction analysis.The results show that after annealing for 3 s most of the texture oriented alongα-fibre andγ-fibre,the intensity of {100}〈110〉was the strongest.{111}〈112〉,{111}〈110〉,{112}〈110〉,Gauss texture and cube texture were the main texture after annealing for 20 s,with the ...
6.5%Si硅钢的制备技术和发展前景
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...
冷轧生产线硅钢激光辅助切割有限元模拟
研究了激光加热辅助圆盘剪高速切割技术,以解决现有冷轧生产线硅钢切边技术存在的微裂纹、应力、毛刺和边浪等问题。建立了激光加热温度场有限元分析模型,根据生产线上圆盘剪加工的实际过程,探讨了数值模拟中热源的加载形式,研究了激光对板材进行辅助加热时各个工艺参数如激光功率、光斑尺寸以及激光入射角度对切割工艺的影响,并通过实验对工艺参数进行了优化。最后,进了验证实验。实验结果显示:当激光加热点运动至圆盘剪刃口位置时,温度为100℃左右,此时材料硬度降低到原有硬度的70%~80%,降低了切削力,减少了圆盘剪的磨损,可有效提高圆盘剪的寿命。 Laser assisted trimmer side cutting technology was studied to overcome the problems such as micro cracks,stress,burrs and edge waves existing in a cold rolling production line of silicon steel side cutting.A finite element analysis model for the laser hearting temperature field was established, the loading form of a heating source was determined and influences of various processing parameters like laser powers,spot sizes,and laser incident angles on laser assisted heating sheet materials were di...
无取向硅钢铬酸镁绝缘涂层结构与耐蚀性能研究
采用扫描电镜、原子力显微镜研究了铬酸镁半无机绝缘涂层的微观结构。结果表明,涂层厚度为数微米,涂层中的有机树脂乳液颗粒均匀分布在无机涂层的表面,从而保证了涂层具有良好的冲片性能。采用极化曲线研究了涂层的耐蚀性能,发现铬酸镁与铬酸锌绝缘涂层的耐蚀性能相当。 In this paper,the microstructure and anti-corrosion property of magnesium chromate coating on non-oriented silicon steel were studied.The microstructure was observed by SEM and AFM.The anti-corrosion properties were evaluated by polarization curves.The results show that the thickness of coating is several microns and the polymer particles were scattered on the surface of inorganic coating,which is the guarantee for lamination property.The corrosion resistance of the magnesium chromate film was e...
CN202111662527.7一种低温高磁感取向硅钢的热轧方法
一种低温高磁感取向硅钢的热轧方法:经转炉冶炼并浇注成坯;对铸坯加热后进行粗轧:首先确定粗轧减宽量;根据所确定的粗轧减宽量进行粗轧;进行精轧;常规进行下工序。本发明采用低温板坯加热技术,降低了板坯烧损和修炉负担,且边裂发生率比现有技术的不低于18%的基础上能降低5%以上,由此节约资源及降低能耗。
CN202023128665.0一种高密度熔融石英陶瓷高磁感硅钢炉
本实用新型涉及熔融石英陶瓷生产技术领域,且公开了一种高密度熔融石英陶瓷高磁感硅钢炉,包括底板,所述底板的顶部固定连接有高磁感硅钢炉本体,所述高磁感硅钢炉本体的顶部固定连接有密封轨,所述底板顶部的左右两端均固定连接有立柱,所述立柱的顶部固定连接有箱体,所述箱体的右侧固定连接有调节电机,所述调节电机的输出轴固定连接有螺杆,所述螺杆外表面的左右两端均螺纹连接有滑块,所述滑块的底部铰接有连杆,所述连杆的底部铰接有封板。该高密度熔融石英陶瓷高磁感硅钢炉,通过将调节电机的旋转力,转换为封板的上下移动力,无需人工手动开启或关闭,消除了安全隐患的同时,省时省力,操作简便。

