M8011H16铝合金防盗盖板生产工艺研究

研究了元素含量变化对8011铝合金防盗盖板综合性能的影响，在8011合金中改变Cu、Mn元素含量后可提高防盗盖板的强度，同时研究了烘烤处理后的强度变化问题。本文研究出了8011铝合金防盗盖板新的生产工艺制度。     

无线传感器网络中几种无线通信技术的分析比较

无线通信技术是无线传感器网络系统研究的关键内容之一。通过对几种典型的无线通信技术作以综述介绍和对比分析,阐述了蓝牙技术的特点及其在无线传感器网络系统中应用的优势。     

PTP药箔基材生产工艺研究

采用拉伸试验、杯突试验、表面张力试验和针孔度检查,测定、分析了4种不同生产工艺方案样品的力学性能、破裂强度、表面张力以及针孔度,确定了合理的8011-H18状态PTP药箔基材生产工艺。结果表明：采用8011铝合金铸轧坯料可以生产高质量的PTP铝箔基材,在其冷轧至1．5mm时进行中间退火,退火制度为450～470℃／11～13h。通过对铸轧、冷轧和箔轧工艺的配合,可获得高表面质量和力学性能的PTP铝箔基材。     

PTP药箔基材生产工艺研究

采用拉伸试验、杯突试验、表面张力试验和针孔度检查,测定、分析了四种不同生产工艺方案样品的力学性能、破裂强度、表面张力以及针孔度,确定了合理的8011-H18状态PTP药箔基材生产工艺。结果表明:采用8011铝合金铸轧坯料可以生产高质量的PTP铝箔基材,在其冷轧至1.5mm时进行中间退火,退火制度为450～470℃/11～13h。通过对铸轧、冷轧和箔轧工艺的配合,可获得高表面质量和力学性能的PTP铝箔基材。     

The effect of precipitation on the evolution of recrystallization textures in an AA 8011 aluminum alloy sheet

The texture of an AA 8011 aluminum alloy sheet cold rolled by 95% showed a typical β-fiber, which runs from the copper orientation [C={112}〈111〉] over S [{123}〈634〉] to brass [B={011}〈112〉]. The development of annealing textures depended on annealing temperatures due to the interaction between precipitation and recrystallization. Upon annealing at a low temperature of 275°C, precipitation took place before recrystallization. This led to a weak recrystallization texture consisting of {011}〈122〉, {001∼〈100〉, and {hk0}〈001〉, among which the {011}〈122〉 orientation developed near large FeAl₃ particles as the main orientation and the cube [{001}〈100〉] orientation originating from the matrix was relatively weak. After annealing at 350 and 500°C, a strong cube texture developed along with a weak {011}〈122〉 orientation. When the cube orientation developed, the copper orientation disappeared most rapidly. These results were discussed based on the interaction between precipitation and recrystallization.     

8011/1145合金单层幕墙板卷材工艺研究

研究了宽幅、高性能、高平直度的单层幕墙板用卷材的生产技术,着重对单层幕墙板用卷材的合金选择、铸轧工艺、冷轧工艺、中间退火工艺和轧辊辊型设计进行了研究。顾客可对单层幕墙板用卷材进行矫直、折弯成型、脱脂、氟碳喷涂或静电喷涂等处理,以满足幕墙装饰需求。     

金卡纸用8011铝合金箔材生产工艺研究

研究开发了宽幅、高性能、高表面质量、高平直度金卡纸用铝合金箔材的生产技术。介绍了宽幅金卡箔的性能要求。     

高性能瓶盖用热轧AA8011-H16铝合金带材的生产工艺研究

从瓶盖用铝合金带材的质量要求入手,采用正交试验法通过五种试验工艺对瓶盖料的生产工艺进行了分析研究,从而得出了生产高性能瓶盖AA8011-H16铝合金带材的生产工艺。     

软管用8011铝合金箔材生产工艺研究

采用SEM表面形貌和元素定量分析方法对铝箔针孔形成机理进行了研究，提出了“非金属夹渣在轧制过程中的脆性断裂可导致铝箔形成短程线性针孔”，以及“铸轧带材表面缺陷也可形成分散性针孔”的机理；将这一机理应用到软管用铝合金箔材(简称软管箔)的生产实践中，在减少针孔方面取得了重大突破。介绍了宽幅、超薄软管箔的生产技术和性能要求。     

Parametric and non-parametric modelling of earing and hardness of deep drawn cups

Abstract

This study compares different approaches in modelling the earing phenomenon and hardness of cups in deep drawing process. The blank holder force (BHF), annealing temperature and annealing time of blanks before deep drawing process have been chosen as the three influential parameters on the earing and hardness. To obtain mathematical models for the earing and hardness of the deep drawn cups, the methodology of artificial neural networks have been used. Bayesian network, radial basis function network, Gaussian processes and multilayer perceptron are four different ANN approaches that have been used for the modelling. The research has been conducted on a cold rolled Al–Fe–Si (AA8011A) aluminium sheet. After obtaining the mathematical models describing the influence of BHF and annealing on hardness and earing, a comparison of the proposed models has been performed. A search for the optimal parameters of deep drawing process has been carried out.