双金属管复合拉拨力计算

在对双金属管复位拉拨变形区分析的基础上，建立了复合拉拨拨制计算式，讨论了有关参数的确定方法，并对计算方法进行了评价。     

基于Web的车身覆盖件模具标准件库系统的研究

通过对车身覆盖件模具标准件和典型结构件的总结与归纳．使用Microsoft．NET平台建立了基于Web的车身覆盖件模具三维参数化标准库。系统主要包括标准件参数数据库、标准件特征信息库、标准件模型库，此外为方便设计人员选型，还提供了标准件计算、分析与决策模块。     

Al-Cu-Cr系准晶及其类似相的形成规律

本文为了探明Al-Cu-Cr系准品及其类似相的形成规律,以指导Al-Cu-Cr系准晶合金设计.通过分析研究用热压法制备的Al-Cu-Cr准晶与纯铝的复合材料中不同条件下形成的各个Al-Cu-Cr相的成分和结构,绘制了Al-Cu-Cr三元成份-结构相图,结果表明相图中存在两条等电子浓度线,一条是二十面体准晶及其类似相的等电子浓度线,电子浓度e/a=1.86;另一条是十次准晶及其类似相的等电子浓度线,电子浓度e/a=2.09.这充分证实了准晶及其类似相是电子相,服从Hume-Rothery规则.     

Preparation of oriented linear copper fiber sintered felt and its performance

Long metal fibers were manufactured in horizontal lathe with a multi-tooth tool. Based on the coarse antler surface structure of copper fibers, a new sintering technology was put forward to manufacture a kind of oriented linear copper fiber sintered felt. The sintering mechanism of oriented linear copper fiber sintered felt was studied. Compared with sintered copper-wire felt, the characteristics of sintered copper-fiber felts were analyzed in details. Owing to the coarse antler surface structure of copper fibers, oriented linear copper-fiber felt was sintered under the condition ofmicro/nano scale range, and copper fibers easily bonded together in the sintering process. Microchannels with micro-scale coarse antler surface structure were constructed. These characters give oriented linear copper fiber felt some new merits： high filtration accuracy, high flow capability, low resistance loss, good capability to resistance pressure, stable and uniform pore, high specific surface area. The properties of oriented linear copper fiber sintered felt were analyzed.     

基于焊接机器人的三维快速成形的方法研究

将RP技术与熔焊技术结合．依据焊接工艺的特点对切片和多径规划算法进行了研究，得出了根据不同类型零件使用不同路径规划算法的结论。据此。使用Visual C^ 基于UniGraphics二次开发的方式实现了切片、路径规划算法，完成了面向焊接机器人性速成形软件的编写，实现UG实体模型的切片、路径规划以及机器人数控代码的生成。利用MotoMan机器人远程控制接口软件包MotoCom32编写了用于机器人快速成形的远程成形控制软件。采用CO2气体保护焊成功实现了基于焊接机器人的典型零件的快速成形。     

Effect of surface free energy of ceramic glaze on oil droplet shape and its behavior in water

A super-hydrophilic functional ceramic was prepared by adjusting the chemical components of ceramic glaze. Effect of surface flee energy of ceramic glaze on oil droplet shape and its behavior in water were studied. The results show that water can spread on ceramic surface with high surface free energy, and oil droplet can aggregate rapidly and separate from the ceramic surface in water. For the ceramic with lower surface free energy, the polar shares are dependant on its easy-cleaning property. The higher the polar shares, the better the easy-cleaning property, and the easier the droplet separates from the ceramic surface in water.     

小功率整体式电液伺服传动装置的动态性能分析

本文运用古典控制理论，对C335小功率整体式电液伺服传动装置进行了动态性能理论分析，并提出了改进系统动态性能的具体措施。     

导流槽阴极导杆安装方式对阴极表面电流分布的影响

将某厂现有的160kA Hall—Heroult铝电解槽改造成导流槽后，在阴极上表面和阳极底面呈斜坡状的条件下，计算了采用不同阴极导杆安装方式时阴极的电位和电流分布，即通过建立导流槽内部从阳极到阴极的一个半切片电热场模型，用有限元法分别对水平和平行于阴极斜坡两种不同导流槽阴极导杆的安装方式下阴极电位和表面电流密度分布进行了计算。结果表明，不同的阴极导杆安装方法对导流槽阴极的总电位降大小没有明显影响，但是水平阴极导杆安装更有利于阴极表面电流密度的均匀分布。     

基于UG参数化快速设计方法的研究及应用

基于UG三维软件阐述3种参数化设计方法及程序设计技术,论述了冷冲压模具中三维模型参数化设计方法,并提供了部分设计实例.综合运用3种参数化设计方法进行快速设计.     

Fe掺杂对Bi2Sr2Co2Oy热电性能和自旋关联的影响

采用固相合成法制备出系列Fe掺杂的Bi2Sr2Co2Oy，样品，并对样品进行XRD分析，电阻率（p）、热电势（固和顺磁共振研究。结果表明：Fe掺杂浓度x≤0．3时样品基本为单相。Fe掺杂使体系的电阻率略微增大，热电势显著升高，这可能与Fe掺杂降低了空穴载流子浓度有关。Fe掺杂浓度x=0．05样品获得最大的功率因子（power factor，S^2／P）。顺磁共振结果显示，不掺Fe的样品有着较强的顺磁共振（ESR）信号，随着Fe含量的增加，ESR信号向低频方向移动，并逐渐宽化减弱直至消失。这表明Fe掺杂改变了体系的自旋关联状态，占据了Co位参与了Co—O—Co之间的自旋关联。研究结果表明合适的元素掺杂可以有效地调整体系的自旋关联状态，改善材料的热电性能。