所有分类
  • 所有分类
  • 未分类

结合工业化生产的无取向硅钢,探讨了氧硫交互作用对钢中夹杂物生成的影响。借助非水溶液电解+扫描电镜法,研究了不同O、S含量下钢中夹杂物的变化规律。结果表明,本实验条件下,提高O含量、降低S含量,会劣化热轧组织再结晶效果。在劣化效果上,O的作用大于S;低Si、无Al硅钢中,应尽可能降低O含量、适当提高S含量,以粗化钢中微细夹杂物,减少尺寸小于1.0μm的夹杂物的数量;O、S含量与钢中夹杂物数量不具有关联性。生产过程中,不仅要严格控制O、S含量,还要严格控制生产工艺,以免生成较多的有害夹杂物。 Based on the industrial production of non-oriented silicon steel,the effects of interaction between oxygen and sulfur on the formation of inclusions were discussed.The change of non-metallic inclusions in steel sheets was investigated by means of electrolysis with non-aqueous solution under different oxygen and sulfur content.Results show that the recrystallization microstructure of hot rolled sheets will be deteriorated with the increase of oxygen content and the decrease of sulfur content.The ... 
2012-04-28 108 5.8

针对采用含钒铁水生产无取向电工钢存在的铁水脱硫率低、转炉冶炼过程回硫量大、成品硫含量偏高的问题,通过对含钒钛铁水脱硫,减少转炉冶炼过程回硫以及RH脱硫技术等方面的研究,大幅度降低了电工钢成品硫含量。生产表明钢中w(S)=0.001 9%~0.006 9%,平均为0.004 2%;w(S)≤0.008%的比例达到了100%,且w(S)≤0.005%的比例也达到了91.43%。 In cognizance of the problems of low desulphurization rate for hot metal,large sulfur-recovery in converter as well as high sulfur content in products in producing non-orientation electrical steel with vanadium-content hot metal countermeasures have been carried out.Sulfur content in non-orientation electrical steel is decreased obviously by way of study on technologies of desulphurization for hot metal with vanadium & titanium,sulfur-recovery control in converter and desulphurization in RH ... 
2013-01-28 102 5.8

采用光学显微镜、X射线衍射仪等分析了宁波钢铁有限公司生产的取向硅钢不同工序下的组织及织构演变规律。结果表明:铸坯经过热轧后,沿着厚度方向组织不均匀;一次冷轧并经脱碳退火后,组织由条状纤维状变成等轴状的初次再结晶晶粒,初次再结晶平均晶粒尺寸为18.17μm,织构主要以α织构和γ织构为主;在二次冷轧后,晶粒再次被压缩,转变为纤维状,织构主要为γ织构;经过高温退火后,发生二次再结晶,晶粒异常长大,晶粒尺寸达到厘米级,织构成分为单一且锋锐的Goss织构。 The microstructure and texture evolution of oriented silicon steel produced by Ningbo Iron and Steel Co.,Ltd.were analyzed by optical microscope and X-ray diffraction.The results showed that the microstructure of the slab was inhomogenous along the thickness direction after hot rolling.After first cold rolling and decarburizing annealing,the microstructure changed from strip fibrous to equiaxed primary recrystallized grains,and the average grain size of the primary recrystallization microstructu... 
2022-01-28 132 5.8

冷轧取向硅钢工程中有很多的超长、大体积以及薄壁的混凝土结构,裂缝控制是土建施工的关键。在工程中,按照\"抗放兼施、先放后抗、以抗为主\"的原则,采用\"无缝分块跳仓法\",防止超长混凝土结构收缩产生裂缝;在隧道和池体的底板与墙板施工中,采用\"整体浇筑\"法,避免了墙板因约束应力而产生的裂缝。 In the Cold-rolled grain-oriented silicon steel project,there are many overlength,bulk mass,thin-walled concretes structures,how to control the crack is the key of civil engineering construction.In these projects,according to the principle of\"release with resist,resist before release,resist is dominant \",the crack of the over-long structure and shrinkage can be prevented by the method of\"seamless block skip bin \".In the construction of the bottom plate and wall of the tunnel and the pool,the cra... 
2023-05-12 1.28k 5.8

取向硅钢热轧板中织构梯度对发展完善的二次再结晶十分关键,通过添加铜可以显著降低取向硅钢板坯加热温度,从而影响热轧板织构分布。利用X射线衍射仪,分析了实验室模拟薄板坯连铸连轧(TSCR)工艺的3种不同铜含量的取向硅钢热轧板织构。结果表明:不同铜含量热轧板表面到厚度1/4处均为弱的热轧织构,热轧板心部主要为{100}面织构;铜含量约在0.4%时,热轧板次表层的{110}<001>织构比例最高,而热轧板心部的{100}<110>织构比例最低;铜含量对热轧织构中{114}<110>和{001}<100>织构发展有显著影响。 The texture gradient in hot rolled grain oriented silicon steel strip is one of the essential factors to achieve a perfect secondary recrystallization.The addition of copper can significantly reduce the slab reheating temperature of grain oriented silicon steel,so as to impact the texture distribution in the hot rolled strip.The texture of hot rolled grain oriented silicon steel strip as-rolled by thin slab casting and rolling process(TSCR) in laboratory with three different copper contents was ... 
2011-01-28 132 5.8

根据相关的取向电工钢典型专利技术,概述了日本高磁感低铁损取向电工钢低温板坯加热、抑制剂合理调节、关键成分Mn、C、Sn和Sb调节与利用、新型退火剂和绝缘溶液的制备及细化磁畴等生产工艺最新动态和进展情况,并提出了国内企业申请取向电工钢专利时应当借鉴之处。 According to related typical patent technology for grain-oriented electrical steel sheets,the recent trends and progress situation for production process of grain-oriented electrical steel sheets with high magnetic flux density and low core loss in Japan are summarized including low temperature slab heating,suitably regulating inhibitors,adjusting and utilizing key element Mn,C,Sn and Sb,manufacturing for new annealing agent and insulating solutions,and fining magnetic domain,and some suggestion... 
2011-02-28 113 5.8

采用取向分布函数和取向线分析方法对低温板坯加热取向硅钢从热轧到初次再结晶工艺阶段的织构进行了研究。研究表明:一次冷轧后各层的织构组分与热轧板各层面的织构组分存在着继承关系,次表层存在很强的{001}<110>织构,中心层的织构和热轧板的中心层相似,存在强的{001}<110>和{112}<110>织构;中间退火后发生再结晶,各织构组分的强度有所减弱,Goss织构组分再次出现;二次冷轧后沿厚度方向上的织构不均匀性不明显,{111}<112>织构强度最高,几乎是其他织构组分的1倍,{001}<110>织构大幅降低;初次再结晶后织构沿厚度方向没有明显的不均匀性,{111}<110>为最强的织构组分,并且具有一定强度的Goss位向。 The texture from the first cold rolling to the primary recrystallization of low temperature slab reheating grain-oriented electrical steel were researched by orientation distribution function and orientation distribution intensity technique.The results show that after the first stage of cold rolling,there is a strong {001}<110> texture in the subsurface and the texture in center layer is very similar to the center layer of hot band which has strong {001}<110> and {112}<110> tex... 
2011-08-28 149 5.8

【摘要】 <正>国家硅钢技术研究中心自2008年落户武...
2011-06-28 79 5.8

本实用新型公开了一种变压器铁芯硅钢片叠装平台,包括支撑架、升降装置、铁芯架和硅钢片支撑板;铁芯架为硅钢片叠放形成铁芯的作业架,硅钢片支撑板用于储放构成铁芯的硅钢片,铁芯架及硅钢片支撑板均通过升降装置活动设置于支撑架上,且在叠装作业过程中,铁芯架与硅钢片支撑板通过升降装置驱动同时升降。本实用新型提供的一种变压器铁芯硅钢片叠装平台,提高铁芯叠装作业的便捷性,降低劳动强度,提高效率。
2021-12-22 147 6.8

本申请提供了一种快速判断取向硅钢常化板冷轧脆性的方法,属于取向硅钢材料技术领域,包括常化机组尾部卷取时随机取样,每卷分别在板中间和两侧碎边边丝进行取样,均沿轧向取样,在试样温度为常温条件下,对碎边边丝进行弯曲测试,并记录每条碎边边丝式样的弯曲次数,统计对应取样的钢卷在冷轧工序的脆断情况,将弯曲实验结果与冷轧脆断情况进行对应统计分析,根据常化板边部的试样弯曲次数是否大于或者等于1次,若否,则判定冷轧脆断。通过检测不同常化工艺条件下常化板的反弯次数,再验证不同弯曲次数前提下的冷轧可轧性,找出弯曲次数与可轧性的对应关系,从而确定常化板的最小反弯次数,以此对冷轧脆性进行判定。
2021-12-13 121 6.8

本实用新型属于冷轧硅钢技术领域的一种冷轧硅钢无压回水自动控制设备,包括底座,底座外表面的上端固定连接有工作台,工作台外表面上端的两侧分别固定连接有固定柱和压辊主体,工作台外表面上端的中部滑动连接有移动架,压辊主体的下端设置有集水槽,集水槽的内表面设置有浮球液位传感器。液压杆工作推动移动架位移到合适的位置,再通过气缸使伸缩管发生位移,使出水口接近钢板,设置的水箱高于出水口所以水可以在重力的作用下流淌,流出的水流到集水槽内,水流在集水槽内聚集,水流使浮球液位传感器的浮球上升,上升到合适的位置时,浮球液位传感器通过电缆发生电信号至控制器,此设置可以实现设备的自动控制,省去人工进行操作。
2021-11-29 108 6.8

本发明公开了一种取向硅钢电磁性质各向异性的多频电磁无损表征方法。改方法基于多频电磁传感器技术,建立取向硅钢晶粒各向异性有限元模型,通过本发明专利公开的方法,表征取向硅钢晶粒取向‑测量方向‑电磁信号对应关系,通过信号比对,检测取向硅钢与理想硅钢晶粒取向偏差值,判断取向硅钢的电磁性质的优劣。该发明解决取向硅钢生产过程中无法高效判断产品质量以及电磁性质优劣问题,为构建准确的取向硅钢晶粒取向各向异性的电磁无损表征系统,为深化高附加值钢种显微组织预测方法研究与产品在线性能调技术控奠定基础。
2021-11-15 109 6.8

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?