钢厂
取向硅钢常化水冷温度模型及控制方法研究
取向硅钢常化工序主要采用现场实测带钢温度的方式测定冷却速率,并通过稳定冷却水温、调整冷却水量及喷梁运行数量等方式保证合理的冷却速率,给常化工艺设计和生产带来诸多不便。通过对常化工艺水冷过程带钢的传热分析求解,在建立带钢水冷温度模型的基础上,研究了不同冷却工艺参数对带钢温度及冷却速率的影响规律以及冷却工艺的交互作用结果。结果表明:模型计算结果能够较好地反映取向硅钢在常化水冷过程中的温度及冷却速率的变化,其计算误差为0.80%~4.11%;在特定取向硅钢厚度规格和常化工艺下,随着常化冷却水量及有效冷却长度的增加,带钢水冷温度及冷却速率与呈非线性变化;常化水冷工艺主要通过调控带钢与冷却水之间热交换量和交换时间实现对带钢温度的控制,实际生产中需综合考虑机组速度、冷却水量及有效冷却长度之间的交互作用,选定喷梁投入数量和冷却水量以获得稳定的冷却速率。 The cooling rate of normalization process mainly determined by measuring the grain oriented silicon steel strip temperature on site, and ensures the cooling rate by stabilizing the cooling water temperature, adjusting the cooling water volume and the operation quantity of spray beam, which brings inconvenience to the normalization process design and production. Based on the heat transfer of strip in the water cooling section of normalization process, the water cooling temperature model for the n...
CN202120393140.5一种硅钢切边重卷机组
本实用新型涉及一种硅钢切边重卷机组,包括依次衔接布置的开卷机、入口穿带装置、入口转向夹送辊、入口剪、切边单元、出口转向夹送辊和卷取单元,所述切边单元包括沿带钢运行方向依次衔接布置的切边夹送辊、入口稳定辊、切边剪和出口稳定辊,所述切边剪的废料出口侧衔接布置有碎边剪,所述碎边剪的废料出口侧配置有切边废料输出装置。本实用新型提供的硅钢切边重卷机组,采用切边剪+碎边剪的组合对带钢进行切边操作,避免了传统的废边卷取方式,能较好地适用于硅钢切边操作。采用切边夹送辊与入口稳定辊和出口稳定辊配合,能显著地提高切边操作时带钢运行稳定性以及保证带钢切边质量,可相应地提高生产效率。
CN202121335035.2一种用于硅钢片钢卷制造的加热装置
本实用新型涉及钢卷加热装置技术领域,且公开了一种用于硅钢片钢卷制造的加热装置,目前硅钢片钢卷加热不均匀的问题,其包括加热箱,所述加热箱的内腔一侧活动安装有主动轴,主动轴的外侧固定安装有主动齿轮,主动轴的左侧固定安装有位于加热箱外侧的电机,主动轴的两侧均活动安装有从动轴,两个从动轴的外侧均固定安装有从动齿轮,本实用新型,通过电机和主动轴以及主动齿轮的配合,可使得主动轴转动,并通过主动齿轮与两个从动齿轮的啮合,进而使得从动齿轮和主动齿轮同时转动,并通过两个加热盘对加热箱内部进行加热,从而使得固定盘和连接盘之间的钢卷边转动边加热,从而解决了硅钢片钢卷加热不均匀的问题。
CN202121452661.X一种硅钢片高效切割装置
本实用新型公开了一种硅钢片高效切割装置,包括切割工作台,切割工作台的顶部两侧设置有支承板,右侧支承板的一侧设置有控制面板,两组支承板相互贴近一侧的底部开设有若干组滑槽,若干组滑槽的内壁设置有滑轨,滑轨的外侧壁滑动设置有定位调节装置,定位调节装置的一侧设置有与支承板一侧滑动连接的固定块,两组支承板相互远离一侧设置有固定板座,固定板座与切割工作台之间转动连接有丝杆,丝杆与固定块之间相螺接,丝杆的顶部设置有把手,两组支承板相互贴近一侧的顶部设置有连接板,连接板的顶部两侧设置有电动推杆,电动推杆的底部设置有切割装置,本实用新型提供了一种防止硅钢片上浮的高效切割装置。
硅钢芯片冲裁工艺分析与对策
分析了冲裁硅钢芯片时出现的质量问题,针对影响硅钢芯片冲裁质量的4大因素——人、原材料状态、工艺和工装进行了工艺试验和分析,根据原材料状态的差异,采用不同工艺方案,特别是如何合理选择冲裁模具间隙,解决了硅钢芯片冲裁时产生的主要质量问题,使冲裁的硅钢芯片达到最佳质量状态,并满足硅钢芯片的使用性能。 The problems occurred during silicon steel chip punching and the factors that affect the quality of silicon steel chip punching were analyzed,the factors include 4aspects,that is,people,raw material status,process and frock,at the same time,process tests and analysis aimed at the factors that affect punching quality were did,according to the difference of raw material status,corresponding process schedules wee taken,especially in how to reasonably select punching dies clearance,which solved the ...
CN202122455197.6一种硅钢炉底辊套管生产用原料破碎装置
本实用新型公开了一种硅钢炉底辊套管生产用原料破碎装置,包括外壳和固定圆板,所述外壳的端面设置有密封盖和两组电机,两组所述电机的输出端均贯穿外壳的端面,两组所述电机的输出端均卡接安装有破碎辊,所述外壳的内部转动安装有循环滤网管,两组所述破碎辊的下方安装有提示收集箱,所述外壳的下部固定贯穿安装有出料管,且出料管的侧壁安装有电磁阀,所述密封盖的端面固定贯穿安装有四组进料管,且四组所述进料管的外置端端部均固定安装有安装法兰。有益效果:本实用新型采用了循环滤网管,通过设置的循环滤网管,能够对不合格的原料颗粒进行多次破碎,为硅钢炉底辊套管生产用原料破碎装置的破碎工作带来一种保障。
EB5325涂层液在冷轧无取向电工钢中的应用
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.
免常化处理的耐酸蚀无取向电工钢的研制
在现普通冷轧无取向硅钢的基础上,降低Si含量,复合添加少量辅助元素,组合热轧板处理和成品退火加热技术,研制出了免常化处理的高磁感、低铁损并具有良好耐酸腐蚀性能的新系列无取向电工钢。 Based on existing common cold rolled non-oriented silicon steel,a new series of non-orientedelectrical steel with high induction,low core loss and excellent anti-corrosion property has been developed by reducing Si element,adding complexly a small amount of supplementary elements,and employing combined treatment of hot rolled sheet and finished product annealed heated technology.
无取向硅钢夹杂物分析
采用非水溶液电解方法来提取无取向硅钢中夹杂物。通过扫描电镜(SEM)观察结果表明:无取向硅钢中主要夹杂物为六棱柱的AlN、不规则硅酸盐及球状的铁的硫化物和氧化物,其中AlN夹杂尺寸在1~5μm,数量较多,还有部分AlN的复合夹杂。进一步研究了AlN复合夹杂形成机理,采用了Thermo-Calc热力学计算软件计算出该钢样中AlN、MnS析出温度分别为1 240℃、1 200℃,而Al2O3析出温度大于1 800℃,从而为AlN复合夹杂形成机理提供了一个理论依据。 Extracting inclusions from non-oriented silicon steel in non-aqueous electrolysis is a nondestructive method to gain inclusions.Scanning electron microscopy shows that the main inclusions in non-oriented silicon steel were hexagonal AlN,which was of large quantity,irregular silicate,spherical iron sulfide and oxide.The size of AlN inclusions ranged from 1to 5μm,and there were some duplex inclusions of AlN.To further study the formation mechanism of AlN duplex inclusions,Thermo-Calc thermodynamic...
提高热轧硅钢凸度精度的工艺措施
以太钢热连轧厂的硅钢为研究对象,利用凸度仪测量热轧带钢出口凸度值,采用矩阵和失效模式的分析方法了解影响带钢凸度变化的主次因素。研究结果表明:通过有效控制轧制过程中的加热温度、时间及采用合理的辊型,硅钢凸度精度提高了4.34%左右。 In this paper,we take the hot-rolled silicon steelsheet of Taigang as the research symbol,exit profile was measured by convex instrument,the primary and secondary factors that affect the strip profile were measured by using matrix and failure mode analysis methed.The results indicate that convexity accuracy has significantly improved by nearly 4.34% through the effective control of the heating temperature,heating time and the use of correct roller type in the process of hot rolling.
无取向电工钢硫含量控制技术研究
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 ...
无取向硅钢用磷酸盐涂层材料制备及其防腐性能
系统研究了无取向硅钢用磷酸盐系涂层性能的影响因素。以氢氧化铝和磷酸为原料制备磷酸二氢铝,再添加适量的添加剂酒石酸铵、二氧化硅、环氧树脂,得到的涂液涂布于硅钢表面,并控制合适的烘干温度,通过耐盐雾实验考察各因素对涂液耐腐蚀性能的影响。实验结果表明,在磷酸与氢氧化铝物质的量比为3.4∶1、酒石酸铵用量为2%、二氧化硅用量为1%、环氧树脂用量为5%、烘干温度为300℃条件下,所得涂层材料的防(耐)腐蚀效果最佳。 The factors influencing the performance of phosphate anticorrosive coating for non-oriented silicon were systematically studied.Aluminum dihydrogen phosphate was prepared with aluminum hydroxide and phosphoric acid as raw materials.Then added the right amount of additives,such as ammonium tartrate,silicon dioxide,and epoxy resin to prepare the liquid coating,which was coated on the surface of the silicon steel,and finally controlled a suitable drying temperature.The influences of various factors...

