共查询到20条相似文献,搜索用时 62 毫秒
1.
2.
3.
介绍了上海益昌薄板有限公司平整机组的设备选型、设备组成、结构设计与计算,给出了液压站及润滑站的能力及油品。最后介绍了投产情况。 相似文献
4.
从几个方面对热轧平整工艺规程专家指导系统的开发进行了阐述。指出专家系统的基本功能和结构、系统开发所采用的技术以及系统的应用模式等。实际应用表明该系统的开发达到了改进平整工艺,提高平整质量的目的。 相似文献
5.
冷轧薄板双机架平整机组设计实例。介绍了设备选型及机组设备组成,并对主要设备的结构作了简要叙述和计算。生产实践表明,该机组设计正确,运转正常,板卷质量优良。 相似文献
6.
针对平整机组生产率低、稳定性差、功能不完备等问题,对平整机进行了技术改造,增设了一对S辊,保证了稳定的张力轧制;增设了带钢跟踪系统,能够自动测量钢卷直径和宽度;增设了轧辊清扫装置,提高了带钢表面质量。 相似文献
7.
8.
平整机组作为钢卷发货前最后的处理工序,直接影响成品的质量。随着钢铁行业逐步向高效、高强、高质方向发展,常规平整机组处理的带钢越来越难以满足下游用户的严苛要求。因此能生产更高表面质量、更强力学性能、更低残余应力带钢的平整新技术一直都是钢铁行业的研究重点。介绍了平整机组的功能及其演变机制,探讨了近年来出现的“平整+精矫”“平整+拉矫”“平整+切边”联合机组(以常规平整机组为载体,融合其他特定功能和要求的新型联合机组)新技术的适用范围、工艺方案、技术要点和使用效果,并展望了平整机组的技术发展趋势。 相似文献
9.
文章简要介绍了京唐钢铁公司热轧带钢2250平整分机组概况、机组特点、生产工艺、以及试生产结果,该机组的建成投产,对提高热轧高强度薄规格带钢产品质量具有重要意义。 相似文献
10.
11.
叙述了应用光学成象原理,将Y型主动轧机孔成像投影于读数屏上,从读数屏上可直接判断孔型是否符合要求,此法检测孔型容易,调整方便。 相似文献
12.
为减少某热轧厂热轧机组PC精轧机压下缸AGC行程和保持轧制线高度,本文介绍了上、下阶梯板厚度的选择及快速换辊的过程、机组轧制线变化范围、AGC行程范围等. 相似文献
13.
14.
A fuzzy algorithm for flatness control in hot strip mill 总被引:2,自引:0,他引:2
H.T Zhu Z.Y Jiang A.K Tieu G.D Wang 《Journal of Materials Processing Technology》2003,140(1-3):123-128
Based on BP neural network, a flatness prediction model in hot strip mill was developed, in which the same location point data were adopted for training and testing to avoid the influence of time-delay. Two fuzzy flatness control algorithms in hot strip mill were developed, and the simulations were carried out by using the flatness prediction model as controlled objective. Conventional fuzzy control algorithm replacing PID linear control system entirely can reduce flatness error significantly. However, the control quality is not good in steady state. The coupled fuzzy-PID control algorithm reduces flatness error significantly as well as produces the desired flatness with small steady-state error and good stability. The coupled fuzzy-PID control algorithm is found to be suitable for rolling the desired flatness in hot strip mill. 相似文献
15.
对某厂“1+4”热连轧开坯机的扭转振动动态特性进行了研究。在一定的简化基础上,建立了轧机主传动系统的扭转振动力学模型和数学模型,获得了系统的固有频率和主振型及其对转动惯量和扭转刚度的灵敏度。对系统在各阶模态下的能量分布进行了计算和比较,确定了系统的危险模态。根据系统的输入得出了各轴段扭矩放大系数的仿真结果,以判定扭振发生时主传动系统的最大动力载荷。计算发现轧机主传动系统扭振固有频率分布合理,基本满足最佳动力设计准则。研究结果对于实际生产和系统扭振问题的识别与解决具有指导作用。 相似文献
16.
Causes of chatter in a hot strip mill: Observations, qualitative analyses and mathematical modelling
Vladimir Panjkovi? Ronald Gloss John Steward Stephen Dilks Robert StewardGregory Fraser 《Journal of Materials Processing Technology》2012,212(4):954-961
Severe vibrations, known as chatter, occur often in both hot and cold rolling of steel. A recent chatter outbreak at the second stand of hot strip mill in Hastings, Australia, prompted an investigation into the causes of chatter by a literature review, the development and deployment of mathematical models, and a rigorous analysis of plant observations. The investigation suggests that the frictional conditions in the roll gap are the principal cause of chatter in this mill, though residual chatter marks on work rolls can occasionally cause it. The frictional conditions appear to be associated with the thickness and properties of oxide formed on rolls. 相似文献
17.
18.
19.