所有分类
  • 所有分类
  • 未分类

介绍了国内无底层取向电工钢生产技术水平、产量和用途,简述了无底层取向电工钢作为取向电工钢超/极薄带母料及应用于制作大型发电机组铁心、风电等电机铁心和变压器铁心等的情况。 The production technology level,output and application of domestic glassless grainoriented electrical steel were introduced,and the application of glassless grain-oriented electrical steel as parent material of ultra-thin strip of grain-oriented electrical steel and in making large-scale electric generator cores,wind power motor cores and transformer cores were briefly described. 
2022-02-28 171 5.8

本发明公开了一种高硅钢的冷轧生产工艺。该生产工艺属于机械制造技术领域,其中的处理工序的加热工序通过电磁感应加热装置加热,待处理钢经过加热工序的速度为30‑200mpm,加热工序的加热温度为70‑120℃。本发明具有生产效率高和生产质量高的特点,特别是在加热工序中对待处理钢采用电磁感应加热装置进行加热,使其可以快速有效地提升温度,以满足高硅钢的冷轧生产工艺要求,减少断带事故,具有很好的实用性和创新性。
2021-09-26 142 6.8

本发明提供了一种提高无取向硅钢铁损均匀性的方法,所述方法包括,对无取向硅钢板坯进行加热和粗轧,获得中间坯;将所述中间坯精轧后以620‑750℃的温度进行卷取,获得热轧卷;将所述热轧卷进行酸洗和冷轧,获得冷轧卷;对所述冷轧卷升温至900‑960℃的温度保温50‑90s的时间,进行退火,获得铁损均匀性良好的无取向硅钢。本发明提供的方法,其铁损P1.0/50为1.379‑2.721W/kg,P1.5/50为2.751‑5.438W/kg,B5000为1.706‑1.741T,在线P1.0/50极差为0.062‑0.188W/kg,无取向硅钢的铁损更均匀。
2021-03-18 129 6.8

本发明公开了一种高牌号硅钢的穿带激光焊接方法,包括:将焊缝中硅含量降低到Si焊<1.9%。采用激光+填丝焊接,填丝ER50‑6碳钢焊丝;根据焊缝截面积和激光焊接速度;激光填丝焊接时,激光线能量应足够大,达到填丝在熔池中充分混合,均匀分布,不至于填丝的成分浮在熔池的上半部分。采用此方法使焊缝组织从粗大铁素体变成细小、致密的无碳贝氏体,晶内沉淀相和晶间脆性相相对大幅减少,提高了焊缝韧性和成形性能,保证了高硅硅钢带的穿带焊接和连续生产。
2021-05-12 126 6.8

【作者】 王爱华; ...
2013-10-28 101 5.8

【作者】 康凌晨; 王丽娜; ...
2014-05-28 120 5.8

采用EBSD技术研究了有、无拉应力作用下无取向硅钢在晶粒长大过程中织构转变及晶界变化的规律。结果表明:在晶粒生长期间,无应力作用下的硅钢中,{111}〈112〉,{111}〈110〉织构组分强化,而{100}〈001〉织构组分弱化;与无拉应力作用下的情况相比,施加5MPa的拉应力时,{111}〈112〉,{111}〈110〉织构组分强化的速率下降,{100}〈001〉织构组分变化不明显。对于在晶粒生长期间持续变化的{111}〈112〉,{111}〈110〉和{100}〈001〉织构组分而言,虽然有、无拉应力作用下硅钢的{111}〈112〉和{111}〈110〉织构组分的高取向差角度晶界频率均下降,而{100}〈001〉织构组分的高取向差角度晶界频率则上升,但当有拉应力作用后,{111}〈112〉和{111}〈110〉织构组分的高取向差角度晶界频率下降的速率变小,{100}〈001〉织构组分的高取向差角度晶界频率上升的速率稍有变小。通过对无取向硅钢在晶粒长大过程中织构转变及晶界变化规律的研究,分析了合金原子在晶界的偏聚行为。 The rules of texture and grain boundary transformation in the nonoriented silicon steel under applied stress or without applied stress during grain growth were investigated by EBSD.The results show that the {111}〈112〉 and {111}〈110〉 components in the nonoriented silicon steel without stress are strengthened during grain growth whereas {100}〈001〉 component is weakened,but the growth rate of {111}〈112〉 and {111}〈110〉 component decreases,while the area fraction of {100}〈001〉 component doesn’t chang... 
2012-09-28 141 5.8

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. 
2011-04-28 149 5.8

采用X-射线衍射分析技术测定了取向硅钢热轧板在不同压下率下不同厚度处的织构。结果表明,在压下率低于80%的情况下,几乎所有试样的不同厚度处的织构均为旋转立方织构类型{100}<011>,但不同压下率、不同厚度处的织构强度存在很大差异;在压下率大于80%的情况下,不同试样的不同厚度处的织构类型发生了变化,其织构类型为旋转立方织构或高斯织构{011}<100>,且当织构类型为旋转立方织构时,织构强度存在很大差异,而当织构类型为高斯织构时,织构强度差异相对较小。 The texture of the grain oriented silicon steel hot rolled plate at different compressibility has been measured.The experimental results have shown that the texture of all samples at different thickness is {100}<011> when the compressibility is below 80%,and its intensity at different compressibility and thickness is difference.The texture of all samples at different thickness is variable when the compressibility is above 80%,it is {100}<011> or {011}<100>,and the intensity of ... 
2011-04-28 144 5.8

【作者】 姚昌国; ...
2011-05-28 133 5.8

本发明涉及一种提高低温高磁感取向硅钢附着性的方法,该方法在现有低温高磁感取向硅钢连续式脱碳退火炉中,通过在脱碳退火前区通入氮气、氢气干式混合气,在脱碳退火后区通入氮气、氢气湿式混合气进行脱碳,在渗氮区通入氮气、氢气湿式混合气及氨气进行渗氮,解决了低温高磁感取向硅钢附着性不好的难题。本发明方法提高了钢中总氧量、增加了氧化层厚度、改善了氧化层结构,经高温退火后生成了致密的硅酸镁底层,附着性大幅提高,测试结果均在C级以上,大部分样品在B级以上。
2021-09-30 155 6.8

阐述了电工钢在\"双碳\"中的作用,强调了电工钢的生产工艺技术及在减少碳排放、降低能耗中的作用,对下游能效升级带来明显的节能及降碳成果。同时,分析了2021年电工钢的生产运行情况,介绍了电工钢的未来发展,并针对如何减少碳排放以及生产更多的更低铁损、更高磁感的电工钢谈了几点启示。 The effects of electrical steels on carbon peak and carbon neutralization were expounded,especially on the achievements of obvious energy saving and carbon reduction to the downstream energy efficiency upgrading bringing from the production technology of electrical steels and their effects to reducing carbon emission and energy consumption.Meanwhile the production situation of electrical steels in 2021 was analyzed,and the future development of electrical steels was introduced,and some advices w... 
2022-01-28 170 5.8

站点公告

网站试运行,请大家关注本站公众号,多提宝贵意见!

显示验证码
没有账号?注册  忘记密码?