水平带式真空过滤机的选择与应用

本文介绍了水平带式真空过滤机的特点和选用，特别讨论了往复盘水平带式真空过滤机的工作原理及主要特点，提出了应用实例及其发展方向。     

信息融合在带式输送机故障诊断中的应用

针对带式输送机输送距离长、运量大、速度快等特点,为克服带式输送机系统的复杂性和单一传感器很难判断出故障所在,在分析D-S证据理论信息融合算法的基础上,将信息融合技术应用于带式输送机故障诊断中,实现多个传感器采集并充分利用多个传感器资源,提高故障诊断率。仿真结果表明,该方法能准确诊断出系统的故障,有效克服单个信息源的主观性,使故障检测误报率降低,提高检测系统的可靠性。     

普通用途防撕裂钢丝绳芯输送带的研制

介绍了普通用途防撕裂钢丝绳芯输送带的研制。主要包括纵向骨架材料的选择、横向增强层（防撕裂层）的选择、覆盖胶和芯胶及贴胶配方的设计和实际生产工艺。经过试验测试，产品性能符合HG3646－1999标准。该产品已获国家专利。     

汽车虚拟仪表盘的仿真设计

汽车仪表盘反映了汽车行驶过程的多种参数,设计虚拟仪表盘仿真系统在教学科研中具有重要意义。在分析汽车仪表盘功能的基础上,提出了汽车虚拟仪表盘总体设计方案。编写通信程序实现了上位 PC 机和下位单片机系统的数据采集发布功能。应用VB开发了数字化汽车虚拟仪表盘界面与性能仿真系统,可模拟发动机转速、车速、温度、时间及里程等信息实时显示在计算机界面上;操作控制按钮可实现汽车转向灯指示功能。经实际试验运行显示该仿真系统工作正常,实现了对汽车仪表盘的仿真效果。     

公制轻型载重子午线轮胎带束层钢丝帘线的发展状况

介绍了公制轻型载重子午线轮胎带束层钢丝帘线存在的问题、发展趋势以及 2 +2× 0 30HT开放式结构高强度钢丝帘线的性能和应用。公制轻型载重子午线轮胎钢丝帘线由复杂排列紧密型结构向简单开放式结构 ,由单丝直径较小、根数较多向单丝直径较大、根数较少 ,由普通强度向超超高强度方向发展。与 1× 5× 0 2 5和 3+9×0 2 2传统紧密型结构钢丝帘线相比 ,2 +2× 0 30HT开放式结构高强度钢丝帘线的物理性能、挤出和压延工艺性能、轮胎成品性能好 ,价格低 ,适用于公制轻型载重子午线轮胎带束层。     

3×0.20+6×0.35HT钢丝帘线在全钢载重子午线轮胎带束层中的应用

研究3×0.2 0 6×0.3 5 HT钢丝帘线在全钢载重子午线轮胎带束层中的应用。试验结果表明,以3×0.20 6×0.35HT钢丝帘线替代3 9 15×0.22 0.15钢丝帘线用于10.00R20全钢载重子午线轮胎带束层,带束层安全倍数满足设计要求,工艺性能良好,成品轮胎的强度、耐久性能和高速性能均满足使用要求,同时可减小轮胎质量,每条轮胎可降低成本约30元。     

微机用于抛物线齿同步带传动强度理论的研究

采用啮合原理与弹性力学复交函数相结合的方法，借助计算机对抛物线齿同步带传动强度理论进行了系统研究，并将整个计算过程编制成ＲＨＤＧＲＡＰＨ软件。利用该软件进行了带齿和轮齿及刀具齿形设计、啮合原理分析、应力和变形计算、刀具可加工最小齿数的确定及加工误差分布计算。     

Reduction of NO by H2 on PdO-MoO3/γ-Al2O3 of low molybdena loading

The catalytic activity and selectivity of three PdO-MoO₃/-Al₂O₃ catalysts containing about 2% Pd and 2% Mo were studied for the reduction of NO by h₂ in the presence of varying amounts of oxygen at temperatures from 50 to 550 °C. The results are compared with those for PdO/-Al₂O₃, PdO-MoO₃/-Al₂O₃ containing 2% Pd and 20% Mo, and a commercial Pt-Rh catalyst. In the absence of oxygen, the conversion of NO to N₂ and N₂O is higher on the three catalysts than it is on PdO/-Al₂O₃ at 500 and 550 °C. In the presence of oxygen, the yields of N₂ and N₂O are generally lower on two of the PdO-MoO₃/-Al₂O₃ catalysts than on PdO/-Al₂O₃.     

Development of Monolithic Catalysts with Low Noble Metal Content for Diesel Vehicle Emission Control

Monolith washcoated catalysts with potential for diesel emission control have been developed. Two types of catalysts have been prepared for further study: (1) MnO _x supported on granulated -Al₂O₃, (2) MnO _x supported on cordierite monolith washcoated with -Al₂O₃. Both catalysts have been calcined at 500 and 900 °C and subsequently modified by doping with 0.1–1.0 wt% of Pt or Pd. The influence of the concentration of both manganese oxide (0–10 wt%) and noble metals Pt and Pd in the range 0–1.0 wt% on the catalytic activity in methane oxidation has been studied. Comparison of the catalytic activity of MnO _x /Al₂O₃ and MnO _x + Pt(Pd)/Al₂O₃ with that of a standard 1 wt%Pt/Al₂O₃ catalyst shows the existence of a synergetic effect. This effect is more pronounced for the samples calcined at 900 °C. The developed monolithic catalysts MnO _x + Pt(Pd)/Al₂O₃ demonstrate higher activity and thermal stability (up to 900 °C) compared to the commercial monolithic catalyst (TWC's).     

同步带成型工艺的探讨

介绍模压法橡胶同步带成型工艺流程及装备，重点阐述了耐磨布套的制作，强力层的缠绕，张力的控制及张力器原理，最佳胶层厚度控制，及它们与成品带质量的关系。