超声波清洗在贵/廉金属复合材料生产过程的应用研究

本文结合“ODS清洗剂消费淘汰项目”的实施，并对新型超声波清洗机及新型ODS清洗液进行了工艺试验，阐述了超声波清洗技术是贵／廉金属复合材料生产过程中无可替代的清洗技术。     

牛奶加工过程中的清洗(二)

五．牛奶厂的清洗。目前，牛奶厂采用的清洗方式主要是CIP清洗(Cleaning in place)，原地清洗或称定置清洗，即在基本不拆卸或挪动机械装置和管线的情况下对生产过程中能与牛奶发生接触的设备表面进行的清洗。其冲刷、清洗、灭菌的整个过程全部实现了自动化因此大大降低了劳动强度。而有一些不     

我国印制电路板非ODS清洗技术现状引发的思考

我国印制电路板(PCB)的非ODS清洗技术已基本解决。当今需面对的是：(1)新型元器件的组装、(2)无铅焊工艺、(5)小产量生产的清洗技术，以及(4)优化方案的思考。     

A computational simulation study on the acoustic pressure generated by a dental endosonic file: Effects of intensity,file shape and volume

One of the uses of ultrasound in dentistry is in the field of endodontics (i.e. root canal treatment) in order to enhance cleaning efficiency during the treatment. The acoustic pressures generated by the oscillation of files in narrow channels has been calculated using the COMSOL simulation package. Acoustic pressures in excess of the cavitation threshold can be generated and higher values were found in narrower channels. This parallels experimental observations of sonochemiluminescence. The effect of varying the channel width and length and the dimensions and shape of the file are reported. As well as explaining experimental observations, the work provides a basis for the further development and optimisation of the design of endosonic files.     

Industrial Applications of Dimeric Surfactants: A Review

Dimeric surfactants also known as gemini surfactants have received lots of attention for high performance formulations in the various scientific and commercial products. Due to the greater amount of hydrocarbon per molecule, the critical micelle concentrations (CMC) of dimeric are typically one order of magnitude lower than the corresponding monomeric surfactant. They are ten to hundred times more efficient at reducing the surface tension of water and the interfacial tension of the oil-water interface than conventional surfactants. Besides, the Krafft temperatures of gemini surfactants with hydrophilic spacers are generally very low giving these surfactants the capacity to be used in cold water. These surfactants display a range of interesting properties, including elevated surface activity, extremely low CMC and extraordinary rheology and self-assimilation aspect. As a consequence of these properties, they have many potential applications include detergents and cleaning agents, cosmetics, textile, and dyeing, dispersion stabilization and emulsion polymerization, genetics science, pharmaceutical, and biological applications.      

硅研磨片超声波清洗技术的研究

介绍了硅研磨片清洗的重要性,分析了影响硅研磨片质量的主要因素,即金属杂质和各种污染物.重点分析了硅研磨片表面沾污的原因,并且通过大量的实验分析得到了活性剂和碱性清洗液、去离子水的最佳体积比是0.20:1.00:10.0,清洗的最佳时间为3 min～5 min和最佳温度范围为40℃～50℃.     

An activated fluid stream – New techniques for cold water cleaning

Electrochemical, acoustic and imaging techniques are used to characterise surface cleaning with particular emphasis on the understanding of the key phenomena relevant to surface cleaning. A range of novel techniques designed to enhance and monitor the effective cleaning of a solid/liquid interface is presented. Among the techniques presented, mass transfer of material to a sensor embedded in a surface is demonstrated to be useful in the further exploration of ultrasonic cleaning of high aspect ratio micropores. In addition the effect of micropore size on the cleaning efficacy is demonstrated. The design and performance of a new cleaning system reliant on the activation of bubbles within a free flowing stream is presented. This device utilised acoustic activation of bubbles within the stream and at a variety of substrates. Finally, a controlled bubble swarm is generated in the stream using electrolysis, and its effect on both acoustic output and cleaning performance are compared to the case when no bubbles are added. This will demonstrate the active role that the electrochemically generated bubble swarm can have in extending the spatial zone over which cleaning is achieved.     

电子工艺用清洗剂的现状及发展趋势

在综合国内外文献资料的基础上,着重介绍了电子工艺的清洗技术和电子工艺用清洗剂的现状及发展趋势.从而了解到电子工艺用清洗剂目前还存在许多不足及我国的水基清洗剂在技术上急需突破的诸多难题.但是,水基清洗剂具有安全环保、清洗范围广、与大多数被清洗物相容性好和价格低等优点,同时基于相关法律政策,它将成为今后发展的趋势.     

高层建筑物的外墙清洗

为适应高层建筑物外墙清洗技术在我国迅速发展的形势特编写此文，文章主要介绍了高层建筑物外墙清洗的设备和方法。针对建筑物污垢的成分、结构，附着方式和外墙材料理化性质及结构，指出清洗剂一般采用表面活性剂和助剂配成的水基洗济剂。并详细介绍了具体的清洗剂配方。     

彩色显像管压机管路系统及其配件的清洗

彩色显像管玻壳压机的管道系统是压机的重要组成部分，除了管道系统复杂难于施工以外，有一个特殊的要求，管道内壁非常清洁，否则在压机运行中，管道内有不洁物及其它杂质混入液压油内，将造成压机液压系统中的元器件的损坏，直接影响着它的正常运行，为此该厂在制造压机过程虽设计了一系列特殊的清洗工艺及清洗装备，成功地完成了此项制造任务。