盐炉的启动技术

在试验盐炉各种启动技术的基础上,研制了与以往启动装置完全不同的石墨启动电极,实践证明,它具有寿命长、操作方便、制造容易、成本低、易于维修等特点,为盐炉启动技术的发展,提供了新的途径。     

对串联液压缸新同步回路的改进

指出了带补偿措施的串联液压缸新同步回路中的两种新回路的缺点；并介绍了其它几种带补偿措施的串联液压缸最新回路的结构、原理和特点(其活塞上的密封圈不易损坏)。     

一种可实现自动补偿的热电偶温度测控系统的设计

本文介绍了多通道带嵌入式MCU的12位A／D转换器ADuC812的基本使用方法以及利用ADuC812实现热电偶精密测温的实现方法，着重分析了热电偶测温中冷端温度实现完全补偿的方法。其硬件结构简单、精度高，适合于各种温度测控系统。     

Microstructure and properties of A1-Cu-Mg-Ag alloy exposed at 200℃ with and without stress

The effect of stress on the microstructure and properties of an Al-Cu-Mg-Ag alloy under-aged at 165℃ for 2 h during thermal exposure at 200℃ was investigated. The tensile experimental results show that the remained tensile strength of both specimens at room temperature after being exposed at 200℃ with and without applying stress rises firstly, and then drops with the increasing of exposure time. The peak value of the remained strength reaches 439 MPa for non-stress-exposure for l0 h, and 454 MPa after being exposed with stress loaded for 20 h at 220 MPa. The elongation change is similar to that of strength. After being exposed for 100 h, specimen exposed at 220 MPa still remains a tensile strength of 401 MPa, larger than that exposed without applying stress. TEM shows that the microstructure of under-aged alloy is dominated by Ω phase mainly and a little θ＇ phase. The θ and Ω phases are believed competitive with increasing exposure time. The width of precipitation free zone（PFZ） increases and the granular second phase precipitates at grain-boundary correspondingly. It is shown that the mechanical properties of alloy decrease slightly and present good thermal stability after thermal exposure at 200 ℃ and 220 MPa for 100 h.     

新型内窥镜机器人结构优化设计研究

研究了一种结构简单的新型内窥镜机器人驱动机构,并建立了内窥镜机器人在人体内腔中运动的数学模型.采用有限差分法分析了内窥镜机器人结构特性参数对机器人的最小粘液膜厚度和轴向摩擦牵引力的影响,从而获得当需要较厚的粘液膜厚度和较大的轴向摩擦驱动力时最优的机器人结构特性参数,为机器人更好地以较厚的粘液膜厚度和较快的速度悬浮式运行创造条件.内窥镜机器人的运行速度试验证明了此理论分析模型的正确性.     

IGBT逆变弧焊机可靠性的探讨

本文就IGBT逆变焊机可靠性的问题进行了探讨。介绍了逆变主电路的设计及器件的选择对可靠性的影响；讨论了逆变焊机中过电压、过电流的保护电路。文中还就驱动电路的应用及控制电路的抗干扰问题进行了讨论。     

Microstructure and mechanical properties of Al-Cu-Mg-Ag alloyed with Ce

The aged characteristics and microstructure of two Al-Cu-Mg-Ag alloys with and without Ce addition are investigated by TEM and mechanical properties test. The results show that trace Ce addition inhibits precipitating process and delays peak aging time 0.25% Ce additions decrease both tensile strength and ductility. TEM observation shows that the morphology of Ω precipitate can be modified by the small addition of Ce, The trace Ce affects the microstructure by reducing the volume fraction of Ω precipitate. It can be concluded that the intensive interaction between Ce and Cu decreases the Cu atom concentration in alloy matrix and reduces the precipitated kinetics for Ω phase.     

全液压静力压桩机及其液压系统的设计

介绍了全液压静力压桩机的压桩工作原理、施工特点、主要部件及液压系统原理、实施途径。     

对JSS35型机器人液压回路的研究与改进

在分析研究现有JSS35型机器人液压系统的基础上提出了一种新回路。在新回路中虽未用安全阀，但仍能实现过载保护。本文简要介绍了JSS35型机器人液压系统新回路的来源、组成、原理和特点。     

剪板机液压系统同步误差补偿油路

介绍了几种带补偿措施的串联液压缸的新同步回路的结构、原理、特点 ,以及在 Q1 1 - 1 6× 2 5 0 0剪板机液压系统中的应用