钢厂
双辊连铸无取向硅钢铸带特征及常化作用研究
双辊连铸技术是冶金及材料领域内的一项前沿技术,对于生产高品质硅钢具有独特优势.本实验研究了一种双辊铸轧w[Si]=4.5%的无取向硅钢,考察其铸态和常化处理后样品的组织、织构及析出相尺寸特征.结果表明:铸带组织以与铸带法向成5~20(°)倾角的柱状晶为主,晶内存在少量0.3~0.4μm的AlN析出相,铸带织构以λ(<001>//ND)织构为主,表层织构漫散.950℃/10 min常化处理后,析出相尺寸增大,表层λ织构增强. As an advanced technique of metallurgy and material science,twin- roll strip casting has unique advantages for producing high quality silicon steel. The present study was aimed at a 4. 5% Si non- oriented electrical steel for analyzing the structure,texture and the size of precipitates at the initial and normalized state. The results revealed that the initial structure mainly consisted of columnar grains with 5 ~ 20( °) angle to the normal of cast strip,and some AlN precipitates of 0. 3 ~ 0. 4 μ...
CN202121280824.0一种硅钢片叠装上料用转运装置
本实用新型涉及一种硅钢片叠装上料用转运装置,包括一输送单元,输送单元包括输送支架、输送辊,在各个输送支架均配备有一用于接收裁切好的硅钢片并堆放形成硅钢片料堆的放置板;一供料单元,包括供料板、供料支架、供料辊、支撑组件;一转运单元,包括转运支架、转运底座、转运辊、推料板、推动机构、电磁铁、转运齿条、转运齿轮、转运导轨、转运导座、导向轮、行走滚轮。本实用新型的优点在于:通过输送单元、供料单元及转运单元之间的相互配合,从而能够将满料的放置板自动输送并呈日字形自动排布好,无需再由人工搬运放置,大大减少了人工劳动,降低了人工劳动强度。
提高硅钢退火炉耐材施工效率的几点经验
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.
锌浴中钛对含硅钢Fe-Zn反应的抑制作用
选用Q235和Q345钢,在纯锌浴和含钛量分别为0.05%、0.10%、0.15%、0.20%(质量分数)的合金浴中浸镀0.5、1、3、5、8 min。利用扫描电子显微镜和能谱仪研究了钛对热浸镀锌组织和生长动力学的影响,并提出钛对含硅钢铁锌反应抑制作用的机理。结果表明:钛的加入缩短了Γ的孕育期,促进了合金层中δ的生长和ζ的消失,δ的生长依然受扩散控制,呈抛物线生长规律;Zn-0.05%Ti锌浴可以很好的抑制高硅钢的硅反应性;含硅钢热浸镀锌钛合金浴时,在锌浴中会形成锌铁钛三元T相,该相能吸收ζ晶界处富集的硅,从而抑制了铁锌反应。 Both Q235 and Q345 steels were immersed for 0.5 to 8 min in Zn bath with different amount of Ti,ranging from 0 to 0.20 mass%,for galvanization.The effect of Ti in Zn bath on microstructure and growth kinetics of hot-dip galvanizing coatings on the two steels were investigated by means of SEM and EDS analysis.Base on the experiment,the mechanism of Ti additions in controlling Fe-Zn reaction was proposed.The results show that addition of Ti in the zinc bath decreases the incubation time of Γ phase...
CN202080095881.3取向电工钢板用退火隔离剂组合物、取向电工钢板及其制造方法
根据本发明的一个实施例的取向电工钢板用退火隔离剂组合物,其包含复合金属氧化物,复合金属氧化物包含Mg和金属M,金属M是Be、Ca、Ba、Sr、Sn、Mn、Fe、Co、Ni、Cu和Zn中的一种以上。
CN202110784113.5一种硅钢连退炉辊除瘤方法及装置
本发明涉及硅钢技术领域,尤其涉及一种硅钢连退炉辊除瘤方法及装置。包括连杆、手柄、磨削片、密封盖、端盖与套筒;磨削片垂直固接在连杆一端的外壁上,手柄固接在连杆的另一端,手柄与磨削片处于同一平面上;连杆套接在套筒内,连杆能沿套筒轴向移动,套筒固接在端盖上;硅钢连退炉辊下方的炉墙设有与连杆及磨削片相应的磨辊孔,端盖或密封盖固接在磨辊孔处。1)确定结瘤炉辊;2)确定结瘤在碳套辊上的位置;3)插入除瘤装置;4)磨削;5)抽出。本发明降低废品量,提高成材率;减少停炉处理结瘤时间,降低能耗,提高生产率;提高难磨瘤辊的修复率,降低炉辊成本。
CN202111375916.1一种超薄取向硅钢用的半有机绝缘涂料
本发明公开了一种超薄取向硅钢用的半有机绝缘涂料。该半有机绝缘涂料,按质量百分比计,包括以下组分:10~25%磷酸盐,1~10%含有环氧基的硅烷耦合剂,0.2~2.0%有机硅烷,1~10%铬酐,1.5~6%二氧化硅粒子,0.3~5%碱,余量为水;其中二氧化硅粒子的粒径为100~300nm。该半有机绝缘涂料应用于超薄取向硅钢表面时,既提高了涂层与基体的附着性,又保证了涂层的绝缘性和耐热性,涂层附着性为A级,叠片系数大于0.96,可耐900℃高温,并且涂层较薄(小于1μm)时,钢板的绝缘电阻大于30Ω·cm2/片,绝缘性能优异,可满足超薄取向硅钢的应用需求。
多元抑制剂对高磁感取向硅钢性能的影响
介绍在取向硅钢生产中抑制剂的作用以及多元抑制剂的机理和应用情况,分析多元抑制剂方案中各种元素对高磁感取向硅钢性能的影响,并根据生产实践提出了进一步研究的方向. The role of an inhibitor in the production of grain oriented silicon steel,and the mechanism of multiplex inhibitor in the production are described in the present article.In addition,the influence of various elements in the multiplex inhibitor on the performance of grain oriented silicon steel with high magnetic induction is elucidated.Further work needed in this research is also indicated.
稀土在无取向电工钢中应用的研究进展
稀土元素在许多钢中发挥着独特而且不可替代的重要作用。半个世纪以来,它的作用已经在各种低合金和特殊合金钢中的研究及应用中得到充分的证明;然而,作为具有稀土资源优势的中国,在属于重要功能材料的无取向电工钢中稀土的应用却落后于国外,本文就中国稀土在无取向电工钢中的应用研究作简要的评述,希望能够进一步推进此领域的研究,并且促进中国稀土在无取向电工钢中应用技术的发展,缩短与国外差距,并提出了在此应用领域今后需深入开展的研究方向。 Rare earth elements play a unique and irreplaceable role in a lot of steels,it has given the full proof by the practice of various low alloy steels and special alloy steels since half century.However,as our country has the advantage of rare earth resources,RE application technology in non-oriented electrical steels has lagged behind abroad.The application researches of rare earth in non-oriented electrical steel in our country are briefly reviewed in this paper,which hope to promote the research...
CN202110332363.5一种硅钢厂调功器故障报警自动复位的方法和系统
一种硅钢厂调功器故障报警自动复位的方法,包括:通过人机界面对炼钢炉温度进行设定,并在炼钢过程中实时获取炼钢炉温度;将炼钢炉实时温度与设定温度进行对比,当炼钢炉实时温度低于设定温度时,启动调节器;调节器输出功率使电阻带加热,使炼钢炉实时温度达到设定温度;当调节器发生故障时,调节器将故障信号发送给后台服务器,后台服务器根据故障指令,按预设规则控制与调节器连接的继电器,控制继电器按压复位按钮,使调节器自动复位。本发明解决了现有技术中通过电气人员来通过复位消除故障状态,耽误时间长,容易产生废品的问题。
取向硅钢成品晶粒的位向测定方法
取向硅钢成品的晶粒尺寸非常大,其易磁化方向[001]晶向对于轧向的偏差角度对其磁性能影响极大。本文介绍了取向硅钢二次再结晶后成品晶粒位向的几种测定方法,包括侵蚀法、劳厄法、OIM法、极图法和非对称X射线衍射法等,并对这几种测量方法进行了比较。 The finished product of grain-oriented silicon steel has immense grain size ranging from millimeters to centimeters and the deviation angles of easy magnetization direction from rolling direction plays a remarkable role in magnetic properties of grain-oriented silicon steel.The methods in common use for determining the deviation angles of crystal direction are introduced,which include the etch-figure method,the Laue method,the OIM method,the pole figure method and the asymmetrical X-Ray diffract...
120t转炉冶炼无取向硅钢脱硫技术研究
结合冶炼无取向硅钢的生产实际,对钢中硫的来源,以及炉渣性质、钢水温度、底吹强度对脱硫的影响进行了分析。研究表明,转炉钢中硫的主要来源为铁水、废钢、铁水渣及石灰带入;冶炼硅钢时,终渣碱度为3.0~3.5,w((FeO))≤20%,终点钢水温度大于等于1 680℃,加大底吹搅拌强度能提高转炉脱硫效果。硅钢平均出钢硫的质量分数为0.004 8%,能满足无取向硅钢对硫含量的要求。 With the actual production of non-oriented silicon steel,the source of sulphur and the effect of metallugic parameters like slag properties,temperature of molten steel and bottom stirring on desulphurizing ability were investigated.The results show that the main source of sulphur is molten metal,scrap,the remaining slag volume in hot metal and lime.The degree of desulphurization for smelting silicon steel can be increased through adopting the following measures,such as the basicity of finishing ...

