钢厂
400mm硅钢自动轧制试验轧机
西安重型机械研究所为武钢开发了目前国内第一台自动化水平较高的先进可靠的硅钢热轧试验轧机。本文介绍了该轧机的工艺参数、设备组成,技术特点及轧制流程,该轧机在规定的终轧温度范围内,实现了2.5 m/s的快速轧制速度,保证了控制系统准确及时的采集到轧件进出轧辊时的信号,缩短道次间隙时间,实现了自动控制,保证了产品板形及精度的高水平要求,对于硅钢尤其是对其取向硅钢新产品、新工艺的开发具有深远意义。 An experimental prototype of 400 mm silicon steel hot rolling mill was developed by Xi’an Heavy Machinery Research Institue for Wu Gang.The technological parameters,configuration and characteristic of advanced control system in the experimental prototype are introduced in detail.The experimental prototype was realized the fast rolling of 2.5 m/s in the range of specified rolling temperature.Its automatic rolling control system can acquisite the signals that a rolled piece enters in and exits fro...
硅钢连续退火机组的节能措施
针对硅钢连续退火机组的主要能源介质消耗现状,对现有生产工艺和设备研究采取机组循环用水、增加清洗段漂洗级数等措施可节约大概27 m3/h的过滤水量,并可减少78%的弱碱处理量;将炉子烟气换热系统增加一级余热回收,每年回收的余热相当于583 t标煤消耗,可节约蒸汽5 368 t。 The present situation of energy consumption for silicon steel annealing line is analyzed in this paper.In existing process and equipment conditions,increasing the number of cleaning series will lead to a saving of about 27 m3/h of filter water and reduce 78 % of weak base processing volume.For the flue gas heat-exchange system,adding a waste heat recovery device will recover waste heat equivalent to 583 tons of standard coal per year,corresponding to a saving of steam 5 368 t per year.
电工钢冶炼过程中硫含量控制
介绍了攀钢冶炼电工钢过程硫含量变化以及过程回硫、增硫情况,采取针对性措施,如:提高铁水装入量、转炉采用石英砂代替复合造渣剂造渣、RH脱硫等,降低钢中硫含量。结果表明:采取相应措施后,电工钢炼成率大幅提高,成品w[S]≤0.008%的比例由改进前的62%提高到92.4%,取得了明显的冶金效果。 The resulfurization and the change of sulphur content in production of electrical steel is analyzed.The targeted measures have been taken,such as increase the loaded quantity of liquid iron,quartz sand replaces the composite slagging agent in the converter and RH desulfurization to decrease the sulphur content of the steel.The result shows,after the measures have been taken,the finished product ratio of electrical steel increase a lot.The ratio of sulfur content of finished product no more than ...
水氯镁石制备硅钢级氧化镁
以水氯镁石为原料,采用氨法沉镁-煅烧-添加剂的方法制备硅钢级氧化镁。考察了反应温度、反应pH值、陈化时间对中间体氢氧化镁纯度及转化率的影响;研究了煅烧温度和煅烧时间对氧化镁水化率的影响及添加剂的量对氧化镁悬浮性能的影响。控制实验条件为:反应温度55℃,pH值为9.5,陈化时间2h,煅烧温度1050℃,煅烧时间2h,添加剂量为0.8%,制得氧化镁的纯度为98.99%、水化率为2.92%、悬浮性能为3mm/h,达到硅钢级氧化镁的要求。 Using bischofite as raw material,the preparation of magnesium oxide with silico-steel grade was studied.The effects of reaction temperature,reaction pH value and aging time on the intermediate magnesium hydroxide purity and conversion rate were studied.Calcinations temperature,calcinations time relationship to the hydration rate of MgO and amount of additive to the suspension performance of MgO were investigated.The results indicated that the optimum technological conditions were as follows:reac...
常化和退火工艺对冷轧无取向硅钢高频磁性能和强度的影响
冷轧无取向硅钢(/%:0.003C,2.35Si,0.22Mn,0.011P,0.002S,0.36A1,0.003 0N)经890℃或940℃3 min常化的2.3 mm热轧板冷轧成0.35 mm薄板。研究了常化温度和800920℃3 min退火对该钢高频(400Hz)磁性能和抗拉强度的影响。结果表明,830920℃退火时高频铁损P10/400值最低,随退火温度增加,晶粒尺寸增大,钢的抗拉强度降低;该钢的最佳热处理工艺为常化温度940℃,退火温度830℃,其抗拉强度Rm、高频铁损P10/400和磁感应强度J50分别为565 MPa,21.5 W/kg和1.69 T。 The cold-rolled non-oriented silicon steel(/%:0.003C,2.35Si,0.22Mn,0.011P,0.002S,0.36A1,0.003 0N) is cold-rolled to 0.35 mm sheet from 2.3 mm hot-rolled plate normalized at 890 ℃ or 940℃ for 3 min.The effect of normalizing temperature and annealing process at 800 920 °C for 3 min on high frequency(400 Hz) magnetic properties and tensile strength of the steel has been tested and studied.Results show that with annealing at 830 920 ℃the high frequency iron loss value P10...
CN202122323867.9一种EI型硅钢片
本实用新型提出一种EI型硅钢片,所述EI型硅钢片呈长方形,其包括两个E形片和两个I形片,所述两个E形片开口相对且对称设置,所述两个I形片分别连接于两个E形片相接形成的两个空挡内,所述长方形的长度A为120mm,宽度B为88mm;其中,E形片的高度C为60mm,中间舌部宽度D为29.5mm,舌部高度E为44mm,其上两侧边柱宽度F为13.25mm;I形片宽度G为16mm,长度H为88mm。本实用新型采用两个E形片和两个I形片对称设置,在冲压时充分利用材料,不会造成多余废料,且其与现有EI90型硅钢片相比,其面积为EI90型硅钢片面积的97.78%,即硅钢材料重量也为EI90的97.78%,减少了硅钢用量。
陶瓷辊除瘤方法在瑞致电工钢的应用
针对陶瓷辊表面结瘤清除时间长、清除效果差等缺陷,研究正反转陶瓷辊除瘤法,以缩短除瘤时间,增强除瘤效果。 The general removal of ceramic roller surface tumor costs a long time and the effect is poor.This paper probed into the ceramic roller tumor removal in order to shorten time and enhance the effect of eliminating.
硅钢水溶性极厚绝缘涂层的热老化行为研究
对两种硅钢水溶性极厚绝缘涂层进行了不同温度的热老化实验。通过TG-DTA,GDS,FT-IR,SEM和光泽度仪等测试方法对老化的涂层进行分析表征,提出了评估硅钢水溶性极厚绝缘涂层热老化性能的合理温度区间,探讨了涂层热老化行为,并分析了两种涂层热老化性能的差异。结果表明,涂层附着性随着老化时间的延长逐渐下降。FT-IR表征结果显示,热老化过程中,涂料交联形成的化学键未发生断裂,交联剂氨基树脂的三嗪环被破坏是聚合物三维网络结构坍塌的主要原因。 Thermal aging expriments at different temperature were carried out on two types of water-soluble and extra-thick insulation coatings for non-oriented silicon steel,and a series of test methods such as glossmeters,TG-DTA,FT-IR,GDS,SEM were applied in analysis.For evaluating the thermal aging effect of this kind of insulation coating,the proper temperature range was proposed.The difference of aging performance between two coatings was been investigated and the related behaviors were been discussed...
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。
CN202023317762.4一种硅钢片加工装置
本实用新型公开了一种硅钢片加工装置,涉及到硅钢片加工装置技术领域,包括安装板,所述安装板的上表面两端均固定连接有固定板,所述安装板的上表面一侧固定连接有涂覆装置,所述安装板的上表面中部固定连接有压平装置,所述安装板的上表面另一侧固定连接有烘干装置,所述固定板的一侧底端通过轴承活动连接有传动辊。本实用新型通过在安装板的上表面一侧设置涂覆装置,涂覆装置对硅钢片的两面进行绝缘层涂覆,在安装板的上表面中部设置压平装置,压平装置包括两个压辊,压辊的一侧设置的限位块中部开设有螺纹孔,转动双向螺杆使得限位块运动,从而使得两个压辊之间的间距被调节,可以根据生产需求调节绝缘涂料的压平厚度。
CN202121007062.7一种高磁感取向硅钢用钢带纠偏装置
本实用新型公开了一种高磁感取向硅钢用钢带纠偏装置,包括支架,所述支架的顶部外壁通过螺栓固定连接有传送电机、安装柱和固定板,所述安装柱的顶部外壁通过螺栓固定连接有侧边板,所述侧边板的两边内壁均开有滑动槽,所述滑动槽的内壁通过螺钉固定连接有滑动轨道,所述滑动轨道的内壁滑动连接有滑动板,所述侧边板的一侧内壁设有推力弹簧,所述滑动板的底部外壁通过轴承连接有抵边轮。本实用新型对带钢产生更大的推力,使得带钢归位,推力弹簧的弹性使得装置对带钢的力比较缓和,不易使得带钢形变,顶压板和防抖轮会在带钢的顶部对带钢施加一个垂直向下的压力,使得带钢在运输过程中不易上下抖动。

