Application of Elman neural network to width spread prediction in medium plate mill;
Elman神经网络在中厚板轧机宽展预测中的应用
According to the operating principle and actual work condition of D56G90 cold ring rolling mill,two major factors,feed speed and width-radius ratio,that affected the width spread in cold rolling rectangle cross-section ring were selected to design width-spread experiment.
根据D56G90型环件冷辗扩机的工作原理和实际工作情况,选取了影响矩形截面环件冷辗扩宽展的2种主要因素:进给速度和宽径比来设计研究宽展变化的实验方案。
The distribution of specific rolling pressure, transverse stress, exit strip profile, edge drop and width spread are obtained by numerical calculations.
数值解析给出了单位轧制压力、出口断面形状、边部减薄及宽展等计算结果,且不同轧制条件下的计算实例与实际相吻合,表明所开发的三维程序适用于单机架或连轧机组等不同型式的宽、窄带钢轧制解析。
The fem simulation for the effect of spread on Q345B square billets rolled by adjusting waist obliquity in box pass;
箱形孔腰部倾角对轧制Q345B方坯宽展影响的有限元模拟
Simulation study of strip spreading on 2050mm roughing trains of Bao Steel;
宝钢2050粗轧带钢宽展规律仿真研究
The spread model of grooveless rolling of compact mill;
紧凑式轧机无孔型轧制轧件宽展模型的建立
In order meet the requirements of market, using forced spread process and box-flat conjugate pass system and at the condition of strong and asymmetric deformation, the 150mm×150mm continuous cast blank is rolled into 20mm×(180~250)mm chord plate slab after7 passes.
为满足市场需要,采用强制宽展工艺,箱扁共轭孔型系统,在强烈不均匀变形条件下,以150mm×150mm连铸方坯,经7道次轧制成20mm×(180～250)mm翼缘板坯,成功开发了系列超常宽度的翼缘板产品。
Some design examples for protected die and expansion feeder plate die at small extrusion machine;
小挤压机上保护模和宽展模设计几例
The design of expansion feeder plate die and shaping die,as well as the flow of metal during the extrusion and the calculation of extrusion force is discussed.
讨论了宽展模、成形模设计和壁板型材生产工艺等问题，重点讨论宽展模及其优化设计的几个原则。
It has outstripped the design capability to roll 865mm wide flat steel on 950 hot tandem mill,causing some problems such as strip running off,spread rolling,back-up roll flaking and difficult control to strip shape etc.
因用950热连轧机轧制865mm宽带钢超出了轧机的设计能力,存在轧件易跑偏、需要宽展轧制、支持辊易掉肉和板形难控制等轧制工艺难题,通过采取优化精轧侧导板和活套参数及E1立辊开口度设置、支持辊端部小倒角和在F7配置负辊型等措施,865mm宽带钢试轧一次成功,成材率97。
With statistical analysis of widthwise elongation of molybdenum sheet of width >600 mm in production process,the influence of the roll neck,the rolling path,the billet size and other factors on sheet widthwise elongation is studed.
通过对宽度大于600 mm钼板在生产过程中的宽展量进行统计分析,验证了宽展量受辊径、轧制道次、坯料尺寸等因素的影响。