钢厂
冷轧大压下量下新型无取向电工钢的退火组织演变
研究了冷轧大压下量,950℃退火时间对一种新型含铜无取向电工钢晶粒度和织构的影响。结果表明,大压下量冷轧,随压下量的增加,退火晶粒向γ线聚集,形成强{111}<112>织构。提高冷轧压下率,退火织构{111}<100>,{110}<001>强度减弱,增加退火时间,退火织构{111}<110>,{100}<001>,{110}<001>强度变弱。采用87.5%冷轧压下率和950℃退火60 s,有利织构{100},{110}占有率最大。 The effect of annealing(950 ℃) time with high cold rolling reduction on grain size and texture of a new non-oriented electrical steel containing copper was investigated.The results show that for high cold rolling reduction,most annealed grains are oriented along γ-fibre with increasing cold rolling reduction ratio and strong texture {111}<112> is formed.With increasing the cold rolling reduction ratio,the intensity of annealed texture {111}<110>,{011}<100> decreases.With increa...
CN202011495799.8一种无底层取向硅钢的制备方法及其产品
本发明属于硅钢制备技术领域,具体涉及一种无底层取向硅钢的制备方法。其中,所述脱碳退火的过程中,带钢表层的氧化膜厚度为1.5~2.5μm;所述氧化膜中Si元素和Fe元素的原子重量比满足:Si/(Si+Fe)≥0.76;所述高温退火的过程中,冷却段依次包括:在温度为1200~500℃时,罩内冷却;其中,保护气体为包括有氮气和氢气的混合气体,所述混合气体中氢气的体积百分比>3%;在温度为500~200℃时,罩内冷却;其中,保护气体为氮气;在温度<200℃时,揭开内罩进行空气冷却。本发明提供的无底层取向硅钢的制备方法中,通过控制带钢在脱碳退火阶段的氧化膜厚度以及高温退火的冷却段等一些工艺,从而得到了表面光洁化好、表面均质化好、成材率高、磁性能优良的无底层取向硅钢。
双取向硅钢在制备过程各阶段的织构和微结构
利用X-射线衍射织构分析和线形分析技术测定了交叉轧制双取向硅钢在制备工艺各阶段的织构及微结构,进而探讨了立方织构({100}<001>)的形成过程。通过对实验结果的分析可知,二次冷轧和交叉轧制工艺为立方织构提供了内能优势和有利的形变织构,而低温预退火工艺既强化了立方织构的内能优势,又为立方织构的异常长大提供了有利的组织保证,最终在抑制剂(AlN和MnS)的协同作用下,硅钢在二次再结晶退火后形成了强烈的立方织构。 The texture and substructure of the double oriented electrical steels produced by the cross rolling technology during the difference process has been measured by means of the X-ray texture and diffraction peak profile analysis technology,and research the formation mechanism of cube texture,{100}<001>.The results show that the dominances of inner energy and deformation texture were supplied by secondary cold rolling and the cross rolling technology and strengthened by pre-annealing at a low...
无取向硅钢C6厚涂层性能的影响因素
本文介绍了无取向硅钢C6涂液的性能,研究了配水量、固化程度和涂层厚度等因素对无取向硅钢C6涂层性能的影响。结果表明,随着配水量的增加,完全固化所需的时间增加,涂液固体含量降低,涂层厚度减小;随着固化程度的提高,涂层硬度先增大然后趋于恒定,而柔韧性逐渐变差,在过固化后急剧恶化;涂层厚度对涂层的表面外观、附着性和绝缘层间电阻均有显著影响。 Based on the introduction about the performance of C6 varnish for non-oriented silicon steel sheets,effects of water amount,curing degree and coating thickness are discussed. Results show that with the increase of water amount,the time required to cure completely extends,and both the solid content of C6 varnish and the coating thickness decrease. As the curing degree increases,the hardness of the coating increases first and then tends to be constant,however the flexibility degenerates,especially...
低温取向硅钢热轧析出物与织构的研究
采用低温板坯加热制备取向硅钢,通过透射电镜(TEM)观察并研究热轧板中的析出物,用ODF织构法研究热轧板距表面1/8、1/4和1/2处的织构分布。结果表明,热轧板中的析出物主要是密排六方AlN,AlN形貌呈规则长方形,AlN颗粒大小不等,分布密度低;热轧板中的织构沿板厚方向,由亚表层的{110}<001>织构向1/2中心层的α线织构变化,其中{110}<001>织构在热轧板距表面1/4层处最强。 The low temperature grain-oriented silicon steels were produced by acquired inhibitor method.The precipitates in hot rolling strip were observed and studied by transmission electron microscope,and the texture distribution in 1/8,1/4 and 1/2 layers of hot rolling strip were analyzed by ODF method.The results showed that the square shaped h-AlN is the main precipitates in hot rolling strip.The precipitates are varying in size and distribution.The texture of hot rolling strip in thick direction are...
CN202022983402.1一种电工钢表面清洗装置
本实用新型公开了一种电工钢表面清洗装置,包括机架、第一传送链和叶片,所述机架的上端固定有顶板,且顶板的内部连接有加料杆,并且加料杆的上端内部设置有固定帽,所述顶板的侧面固定有第一电动机,且第一电动机的一端连接有丝杆,所述丝杆的外侧设置有电动推杆,所述第二转动轴的侧面连接有第二传送链,所述顶板的下端连接有连接架,且连接架的内部设置有第三电动机,所述连接架的底部设置有第二清洁杆,所述机架的内部开设有固定孔。该电工钢表面清洗装置,往加料杆的内部加入清洁液,清洁液会被加料干底部的海绵吸收,当料与加料杆的底部摩擦时,清洁液就会附着在料的表面,从而实现定量的往装置的内部加入清洁液。
CN202011628888.5一种硅钢片铁芯叠片机构
本发明公开了硅钢片铁芯叠片机构,包括送料装置和叠片装置,送料装置包括有磁性传送带、送料件和第一定位杆,磁性传送带用于将已剪切的硅钢片传送至送料件,送料件安装于磁性传送带的下方,并且可沿磁性传送带的正交方向平行伸出,第一定位杆安装于送料件上,用于定位硅钢片,叠片装置设置于送料件的伸出的一方,包括有叠放台、第二定位杆和机械手,叠放台用于叠放硅钢片,第二定位杆用于定位硅钢片,机械手用于将送料件的硅钢片搬运至叠放台上,机械手包括有转动臂和取料单元,取料单元安装于转动臂的端部,包括有电永磁铁,电永磁铁用于吸取硅钢片。根据本发明的硅钢片铁芯叠片机构,可有效提高叠片速度,降低能耗,提高生产效率。
冷轧工艺对取向硅钢初次再结晶织构的影响
研究了取向硅钢制备过程中常见的两种冷轧工艺,主要研究了一阶段冷轧与两阶段冷轧+中间退火工艺对初次再结晶组织及织构的影响.结果表明:采用两阶段冷轧+中间退火工艺制备以Cu2S为主抑制剂的取向硅钢,其初次再结晶平均晶粒尺寸为18.1μm,高斯晶粒的体积分数为0.6%,迁移性强的重位点阵晶界(Σ5+Σ9)和高能晶界(20°~45°取向偏差角)所占比例分别为1.8%和50.4%.与一阶段冷轧工艺相比,其初次再结晶晶粒较细,且高斯晶核与特征晶界所占的比例较高,有利于高斯晶粒发生二次再结晶. Two common cold-rolling processes of grain oriented silicon steel and the effects of the single stage cold rolling and tw o-stage cold rolling w ith intermediate annealing processes on the primary recrystallization microstructure and texture w ere investigated. The results revealed that for the grain oriented silicon steel prepared under the tw o-stage cold rolling process w ith intermediate annealing w ith Cu 2 S as the main inhibitor,the average grain size of the primary recrystallization micr...
取向硅钢含铬无机绝缘涂层的研究进展
绝缘涂层可以有效提高硅钢片的耐蚀、耐腐、磁、绝缘等性能,因此取向硅钢涂装绝缘涂层是取向硅钢生产过程中重要的一环。本文对取向硅钢含铬无机绝缘涂层以及氮化铬涂层的性能优缺点进行了介绍,并对国内无机含铬取向硅钢绝缘涂层及氮化铬涂层的研究现状进行了综述。最后对未来含铬无机绝缘涂层的研发方向进行了展望。 Insulation coating can effectively improve the corrosion resistance of silicon steel sheet, such as corrosion, magnetic, insulation performance, thus oriented silicon steel insulation coating is the important part of oriented silicon steel production process. In this paper, the inorganic insulation coating oriented silicon steel containing chromium and chromium nitride coating performance advantages and disadvantages are introduced.In addition, the research status of insulation coating and chrom...
低温取向硅钢热轧态组织及织构的研究
利用热模拟试验机、光学显微镜和X射线衍射仪对Fe-3.2%Si低温取向硅钢热轧工艺参数对组织及织构的影响进行了研究。结果表明,Fe-3.2%Si硅钢在1110℃粗轧、880℃终轧,轧后以10℃/s的速度冷却到550℃卷取,然后空冷到室温,热轧硅钢板沿板厚方向的显微组织不均匀性显著,对后续发展完善的二次再结晶有重要作用。无论是热轧板,常化板还是冷轧板,它们的织构集中分布在γ取向线上,γ取向线的织构除取向密度不同外,织构种类是一致的,这说明γ取向线上织构是有继承性的。从热轧到常化,织构取向密度显著减小,经二次冷轧后,织构密度又显著升高,可见,轧制变形有助于织构的形成并使织构强度升高。 The influence of hot-rolled process parameters on the microstructure and texture of Fe-3.2%Si low temperature hot rolled grain-oriented silicon steel were researched by hot simulation experiment machine,light microscope and X-ray diffractometer.The results show that,Fe-3.2%Si silicon steel is rolled by the technology with a temperature of rough rolling of1110℃,finish rolling of 880℃,coiling with the speed of 10℃ /s,and then cooled to room temperature with air.The microstructure of hot-rolled sil...
CN202122905920.6一种取向电工钢的多项性能检测装置
本实用新型公开了一种取向电工钢的多项性能检测装置,涉及取向电工钢技术领域,为解决检测装置在对取向电工钢涂层性能检测时较为繁杂,增加了检测难度,检测的误差增加,且检测装置的性能检测较为单一,检测效果不佳的问题。所述底座的上方设置有安装架和吊梁架,所述安装架上设置有输料辊,输料辊设置有两个,两个所述输料辊之间设置有输送带,所述吊梁架的下方设置有弹性胶带,所述弹性胶带上方的两侧均设置有第三电动伸缩杆,且第三电动伸缩杆的两端分别与吊梁架和弹性胶带通过螺钉连接,所述弹性胶带的一侧设置有检测架,所述检测架上设置有激光灯、第一滤光片、接收器、第二滤光片和聚光片,所述激光灯和第一滤光片设置在弹性胶带的上方。

