车用多功能湿式多盘制动器

介绍了车用多功能湿式多盘制动器的优点和过去车用各种制动器的缺点。较详细介绍了当前车辆使用的湿式多盘制动器的现状、种类、特点、结构和工作原理。     

The determination of active filter aid adsorption sites by temperature-programmed desorption

Temperature programmed desorption (TPD) was used to evaluate the active sites of several filter aids that have been promoted for use by the deep-frying industry: activated carbon, aluminas, bleaching earths, diatomaceous earth, silica and synthetic magnesium silicate. TPD analysis determines both the total surface concentration of the active sites and the details of their intensity distribution. A correlation analysis was made between the adsorbents' oil treatment performance and the observed acidic/basic sites. For some of the adsorbents, the adsorption of free fatty acids and the percent change in the color of the oil was shown to relate to the total basic sites and acid sites, respectively. The study also showed that other factors might affect these adsorptivities.     

CPR1000型核电站核岛冷水机组在电站特殊工况下的改造措施

核电站核岛通风空调系统在电站运行中有着重要作用,核岛制冷机作为空调冷源供给设备作用尤为重要。由于核电站核岛空调系统特殊运行条件,导致核岛制冷机运行工况极端恶劣。本文重点研究分析了核岛制冷机在冷却水极端低温和高温运行工况确保正常运行的应对措施。     

大规格SAE4330V-MOD合金钢金矿钻杆执处理工艺

通过对大规格SAE4330V-MOD合金钢金矿钻杆进行不同温度的淬火和回火热处理,探讨研究了该合金钢的调质热处理工艺.结果表明:将该钢先加热到650℃保温3 h,然后升温至860℃保温6 h后淬入不高于70℃水中,最后在620℃回火6 h后出炉空冷,该钢可获得均匀细小的回火索氏体组织,且抗拉强度、冲击功和硬度等达到最佳匹配,各项力学性能均能满足技术要求;若该钢热处理前的原始组织中存在少量的贝氏体,则会导致其热处理后的力学性能不能满足技术要求,因此热处理前应严格控制该钢的原始显微组织.     

旧砂再生综述（2009年度）

通过国内资料检索,对2009年度国公开发表在杂志上的有关旧砂再生工艺及应用方面的论文进行了总结分析,以供同行参考。     

基于FPGA的多路数字信号复接系统设计与实现

数字复分接技术是数字通信网中的一项重要技术,能将若干路低速信号合并为一路高速信号,以提高带宽利用率和数据传输效率。文中在介绍数字复接系统的基础上,采用VHDL对数字复分接系统进行建模设计和实现。并利用乒乓操作和先进先出存储器(FIFO)对复接器进行设计,利用帧同步器对数据进行分接。以QuartusII8.0为仿真软件,对设计进行仿真验证,仿真结果表明,设计实现了复接系统,便于修改电路结构,增强了设计的灵活性,且节约了系统资源。     

Simulation of the Crashing of Sandwich Structures under Impact Loads by Movable Cellular Automata

Movable cellular automata (MCA) method is applied in the analysis of dynamic characters of ceramic armor composite structures under impact loading. As a new approach, MCA is different from the traditional numerical methods such as the finite element method and boundary element method. Based on the theory of particle mechanics, MCA is applied as a powerful tool in relying specific structural analysis of materials loss and penetrating damages. In this paper the method is used to study responses of multi-layered ceramic plates as a base of armor structures under impact loading, thus assisting further investigations in the crashing process and to improve ceramic armor structures.     

Regeneration of Used Lubricating Oils by Supercritical Fluid Extraction

Regeneration of used lubricating oils by supercritical fluid extraction were investigated. The broken-down additives and impurities were removed by the high selectivity of supercritical fluid, and high-quality lube oil was obtained. Corrosion and waste-disposal problems produced by older acid-clay process have been lessened.     

在废油剖析基础上借助红外镜反射技术评定活塞清净性

按照现行的评分程序对活塞沉积物的评定总是存在着人为的误差。借助红外镜反射（ＩＲＭＲ）技术对Ｃａｔｅｒｐｉｌｌａｒ１Ｇ２和１Ｈ２方法试验后活塞的清净性评分进行研究。揭示了胶质沉积指数（ＲＤＩ）与Ｓ、Ｐ和羧酸盐的胶质母体有关，并考察了其区分能力；提出了ＲＤＩ与ＷＴＤ及ＱＺＸ成漆板沉积的一致性；为机油全配方沉积作用机理研究提供了一种认识手段。     

ITO废靶回收金属铟

磁控溅射镀膜后的ITO废靶，以及ITO靶材生产中产生的边角料，切屑，废品等是再生铟的主要原料，对废靶的还原-二次电解工艺进行了研究。并获得了工艺参数良好。回收率高，纯度为99.993%的金属铟产品。