所有分类
  • 所有分类
  • 未分类

本发明提供一种提高硅锰镇静硅钢浇注性的生产方法,属于钢铁冶炼技术领域。其生产流程包括:转炉冶炼→RH真空精炼→连铸。转炉出钢严格控制下渣量,加石灰、渣面脱氧剂调渣;RH真空精炼脱碳结束后,先加入低碳低硫硅铁脱氧,再加入金属锰、磷铁等进行合金化,同时向钢包渣面加入低碳钢渣面脱氧剂对炉渣进行改质,待钢水成分全部命中后加入钙镁铁合金,循环3‑5min后净循环处理6‑10min,破空出钢;连铸采取保护浇注,浇注过程选用塞棒头中Al2O3≥80%、C≤10%、SiC含量8‑15%、气孔率≤12%,质量密度≥2.9g/cm3的塞棒进行控流,连浇炉数≥15炉/中包。本发明可以显著改善浇注过程塞棒头侵蚀问题,提高连浇炉数,降低生产成本。
2021-04-27 242 6.8

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 ... 
2011-01-28 395 5.8

主要对硅钢退火炉耐材施工进行阐述,对一期工程与二期工程施工经验进行总结,包括设计、施工、耐材生产、人员素质等方面,指出了工程项目所所存在的不足,为同类型炉窑的施工提供借鉴。 This paper describes the construction of silicon steel annealing furnace refractories;and it was summarized the construction experience of phase-Ⅰ and phase-Ⅱ projects,including design,construction,refractory production,the quality of personnel etc,and pointed out the shortcomings of the project,which provided a reference for the construction of the same type of furnaces. 
2023-05-11 1.43k 5.8

观察了取向硅钢极薄带经冷轧至不同厚度,并经过不同工艺热处理后的显微组织及亚结构。结果表明:冷轧压下量越大,显微组织中位错密度越高,冷变形组织越多,等轴晶粒越少;增加冷轧压下量可以使试样的再结晶温度降低,当钢带厚度为0.08 mm时,在650℃退火时就能发生明显的再结晶。 Microstructure and substructure of the grain oriented ultra-thin silicon steel sheets is analyzed,which are rolled down to different thickness and treated with different heat treatment process.The result shows that there are higher dislocation density,more cold deformation structure and less equiaxed crystal grain in microstructure of the steel sheets with more cold rolled reduction.Increase of cold rolled reduction will decrease recrystallization temperature,and when thickness of the steel shee... 
2012-11-28 356 5.8

介绍了EB5325涂层液的主要性能和中冶新材生产冷轧无取向电工钢所用的涂层设备,通过多次试验摸索出使用EB5325涂层液的工艺,对涂层出现的缺陷进行分析研究,并提出解决方法,使中冶新材生产的冷轧无取向电工钢的涂层质量满足了用户的要求。 This article introduces the main properties of EB5325 and the coating equipments for cold-rolled non-oriented electrical steel. A process using EB5325 coating liquid is made through many time experiments and exploration. The appeared defects in the coating are studied and analyzed,and the solutions are proposed. The coating quality meets clients’ requirements of cold rolled non-oriented electrical steel. 
2014-01-28 288 5.8

一种硅钢生产线退火炉前的换热装置,包含有抽风机(1)、立柱(2)、热交换器(3)、软管(4)和热风机(5);其特征在于:所述的热交换器(3)由若干组U形不锈钢管连接而成,一端固定在轴套(8)上,另一端通过链条(10)连接在立柱(2)顶端的链条盘(9)上,当链条盘(9)转动时,链条(10)拉动热交换器(3)绕着横轴(7)抬起或放下。本发明通过抽风机(1)将清洁空气抽到热交换器(3)内进行加热,然后再通过软管(4)将热空气输送到热风机(5)内来加热硅钢板(14),有效的利用了热能,避免了凝露导致的板面发蓝现象。
2020-12-25 275 6.8

本发明提供方向性电磁钢板,能够同时实现充分低的变压器铁损与低噪音。一种方向性电磁钢板,其在表面具备张力被膜,实施了通过生成沿与轧制垂直方向在30°以内的方向延伸的线状的闭合磁畴而进行的磁畴细化处理,其中,邻接的闭合磁畴的平均间隔L为15mm以下,用规定式计算出的上述闭合磁畴相对于板厚的深度比率rd为35%以上,用规定式计算出的上述闭合磁畴的体积率rv为0.30%以上3.0%以下,用规定式计算出的上述闭合磁畴的面积率rs为0.50%以上4.0%以下。
2021-08-18 219 6.8

介绍了硅钢氧化镁制备方法及高质量硅钢氧化镁制备技术的研究进展,并对利用我国丰富的卤水资源制备硅钢氧化镁进行了展望。 The preparation methods of silicon steel magnesium oxide and research progress of high quality silicon steel magnesium oxide preparation technology were introduced.The use of abundant brine resources in the preparation of silicon steel magnesium oxide was prospected. 
2013-10-28 241 5.8

热轧轧制工艺对产品性能和轧制稳定性影响很大,对中低牌号无取向电工钢,当在两相区轧制时,热轧塑性明显降低,板形变坏,易出现边裂等情况。以50W1000为例,通过对其变形抗力进行研究,得出把两相区控制在F4与F5之间为最佳轧制工艺的结论。在此基础上制定了一套较为合理的热轧工艺制度。采用新的轧制工艺后,50W1000热轧精轧的稳定性明显改善,热轧产品合格率由开发初期的40%左右提高到95%以上。 The hot rolling process has great influence on product′s performance and rolling stability.For the low medium grade non-oriented electrical steel,when non-oriented electrical steel is rolled in tow phase region,the hot rolling plasticity reduces obviously,the shape of strip goes bad and easily to crack at the edge.The deformation resistance of 50W1000 steel was investigated.The results show that the optimal rolling process is to control the two phase region between F4 and F5.Based on the results... 
2011-03-28 306 5.8

本发明揭示了一种无取向硅钢及其生产方法。所述生产方法包括:按照Si0.8~1.1%、Mn0.2~0.4%、不添加Sn和Sb进行炼钢,并制坯;将铸坯加热到1060~1120℃并保温150min以上,而后轧成厚度40~45mm的中间坯,再经精轧、卷取得到厚度为3.00±0.25mm的热轧卷板,精轧开轧温度≤872℃+1000*(11*[Si]‑14*[Mn]+21*[Al]);精轧终轧温度≤820℃,卷取温度≤560℃;常化、酸连轧,得到厚度为0.500±0.005mm的冷硬卷,常化温度850~900℃;成品退火温度820~880℃,退火后经冷却、涂层和精整,得到无取向硅钢。
2021-06-17 308 6.8

本发明涉及一种用于伴随用于生产非晶粒取向的电工钢带的热处理来加工含硅冷轧钢板的方法,其中,钢板2所含硅的重量比例在1.5%和6%之间,并且其中,钢板以带形状态提供并且在热处理期间在连续的过程中运动通过具有加热区域、保持区域和冷却区域的退火设备,其中,钢板在退火设备3沿垂直的主运送方向运动。
2021-08-18 260 6.8

本发明涉及冶金技术领域,具体涉及一种多组分{100}织构无取向电工钢的制备方法。本发明通过控制薄带连铸参数制备1.5~2.5mm厚的无取向电工钢铸带,直接冷轧至厚度为0.35~0.50mm后,先进行预回复退火,再进行成品退火,此过程中控制退火温度、时间以及升降温速率。本发明所制备的无取向电工钢具有多组分{100}织构,包括{100}&lt;001&gt;、{100}&lt;012&gt;和{100}&lt;011&gt;,{100}织构组分体积分数达到25~39%,其轧向磁感值1.71~1.78T,横向磁感值1.70~1.76T,板面45°方向磁感值达到1.65~1.67T。本发明通过优化退火工艺,利用{100}变形组织的强回复与再结晶协同作用,从而显著增强{100}退火织构,方法简单有效。
2021-10-11 284 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?