钢厂设备中固体润滑材料的应用和管理

随着固体润滑材料的研究和发展,许多设备上已用它取代了传统的油脂润滑材料,大大改善了摩擦副的润滑性能,收到不小的经济效果。目前冶金设备中固体润滑材料的应用比例正在逐渐扩大,因此谈谈冶金工厂中固体润滑的应用及管理上的问题是有益的。     

镶嵌型滑动轴承固体润滑材料应用概况

介绍了聚合物类、石墨类和二硫化钼类镶嵌型滑动轴承用固体润滑材料的研究现状和应用情况,重点介绍了在镶嵌型固体润滑材料中加入填充物可以提高材料的摩擦磨损性能和力学性能,但固体润滑材料在镶嵌型滑动轴承使用中存在单一材料润滑性能一般,金属基体不耐腐蚀和不适用于高速、轻载、低温工况的问题.并且对聚合物类镶嵌型固体润滑材料提出采用...     

激光微造型表面固体润滑性能研究

采用声光调Q二极管泵浦固体光源(DPSS)Nd:YAG激光器,在45#钢试样表面进行表面微造型加工。以聚酰亚胺(PI)和二硫化钼(MoS2)复合固体润滑材料作为固体润滑剂,通过两步加温固化黏结工艺成功制备微造型固体润滑试样。在MMW-1A型摩擦磨损试验机上进行光滑无润滑试样、光滑表面固体润滑试样和微造型固体润滑试样的摩擦性能对比试验,以及微造型固体润滑试样在不同转速和压力下的摩擦性能试验。结果表明,在经过激光加工的微凹坑中填充复合固体润滑材料的试样,在摩擦过程中微凹坑中填充的固体润滑材料能有效转移到在摩擦表面,补充消耗掉的润滑材料,因而表现出更好的摩擦学性能。     

固体润滑国家重点实验室成立三十周年学术研讨会在兰州举行

<正>8月11—13日,由中国科学院兰州化学物理研究所固体润滑国家重点实验室主办,兰州化物所先进润滑与防护材料研发中心协办的固体润滑开放研究实验室(固体润滑国家重点实验室)成立三十周年(1987—2017年)学术会议暨摩擦、磨损、润滑前沿学术研讨会在兰州召开,中科院院士、固体润滑国家重点实验室主任刘维民研究员担任会议主席。大会邀请了来自大陆、香港地区的科研院所、高等院校近50名专家,分别介绍了各自的科研成就以及与     

固体润滑技术及其工程应用

叙述了固体润滑技术的发展,介绍了固体润滑的特点及常用固体润滑材料,重点探讨了固体润滑技术在机械传动零部件、机械加工以及特殊工况下的应用.     

应用二硫化钼消除机床爬行

二硫化钼(MoS_2)是一种行之有效的新型固体润滑材料。随着固体润滑材料的研究和推广,许多机械设备用它代替了传统的油脂润滑材料。这种润滑材料,不仅有利于改善摩擦副的润滑性能,并在解决设备漏油,改善生产环境,节约油脂等方面,收到很大效果和经济效益。MoS_2除具有良好润滑性能外,还具有消除机床爬行的作用。爬行一般是在低速时出现的。在各种机械摩擦副     

应用固体润滑材料制作密封制品

本文介绍了固体润滑材料的润滑密封机理及其在密封制品中的应用;同时也介绍了固体润滑材料制作橡胶骨架油封的试验结果。     

固体润滑技术讲座──第四讲 层状固体润滑材料

固体润滑技术讲座──第四讲　层状固体润滑材料常州牵引电机厂石淼森关键词石墨，二硫化钼，氮化硼，润滑特性，应用常用的固体润滑材料主要是指具有层状结构的材料，如石墨、二硫化铝等无机物，以及用于２５０Ｃ以上高温的润滑材料，其中有单质硫化物、氧化物、氟化物和...     

汽车摩擦材料固体润滑剂的研究进展

综述了当前汽车摩擦材料固体润滑剂的摩擦特性和应用情况,阐述了不同固体润滑剂的润滑机制,指出了今后汽车摩擦材料固体润滑剂的研究方向。     

固体润滑及其研究的重要性

本文介绍了固体润滑的意义、它的发展简史、它所包含的基本内容以及固体润滑材料的特点和研究固体润滑的重要性。     

Some Views on the Mapping of Erosion of Coated Composites In Tidal Turbine Simulated Conditions

This article presents a study of the erosion resistance of coated and uncoated polymer matrix composites for tidal turbine conditions. It focuses on the development of comparative erosive wear mode and mechanism maps for such materials. In our earlier work, testing of glass-fiber-reinforced polymer composites for tribological applications in marine simulated conditions, several erosion-related issues were highlighted. The combined effects of the NaCl solution and sand dramatically enhanced the erosive wear of the uncoated specimens. In order to address those issues, an erosion-resistant polymeric coating was applied to the composite and tested in marine simulated conditions with an extended range of sand particle size. The test results of the uncoated and coated composite have been compared in this research by erosive wear mode and mechanism maps techniques. These maps reveal that the coating has enhanced the erosion resistance. These findings provide significant progress toward materials selection approaches to manufacture of tidal turbine blades.     

Low-voltage scanning electron microscopy of low-density materials

Delicate microstructures in low-density polymer foams and silica aerogel are susceptible to coating damage, artifact structures induced by coating, and electron-beam damage when they are examined by conventional scanning electron microscopy (SEM) techniques. These problems can be reduced significantly and even eliminated when these materials are examined directly with no coating using low-voltage scanning electron microscopy (LVSEM). Much of the fine structure in these materials also can be resolved at low voltage in a SEM equipped with a field-emission gun (FESEM).     

刀具 PVD 涂层技术的发展

介绍了刀具ＰＶＤ涂层技术和材料的发展现状及趋势,指出在进一步开发新型超硬涂层的同时,具有良好应用前景的软涂层已成为研究开发的另一热点。     

微胶囊相变储能材料研究及应用进展评述

微胶囊相变材料（Microencapsulated Phase Change Material,MCPCM）是应用微胶囊技术在固液相变材料表面包覆一层性能稳定的高分子膜而构成的具有核壳结构的复合材料。本文综述了微胶囊相变材料的制备方法、研究进展和应用领域;分析了各种制备方法的优缺点,并指出了制备微胶囊相变材料中存在的问题及今后发展方向。     

涂层刀具的研究现状

高速切削和干切削技术的广泛应用推动了刀具涂层材料和涂层技术的发展.文中全面综述了刀具涂层材料、单涂层和多涂层结构、物理和化学涂层工艺、纳米涂层工艺的最新研究进展.     

Parylene敷形涂层

Parylene是一种性能优异的高聚合物材料,它能涂敷到各种形状的表面,例如金属、玻璃、纸张、树脂、塑料、陶瓷等。简述了Parylene涂层的性能,对Parylene涂层的沉积过程、沉积设备和Parylene涂层的应用领域进行了论述,并对Parylene涂层的性能与环氧树脂、有机硅树脂、聚氨酯涂层的性能进行了比较。     

The use of rhodamine 6G and fluorescence microscopy in the evaluation of phospholipid-based polymeric biomaterials

A technique is described that allows the staining and subsequent visualization of polymers that contain the phosphorylcholine (PC) group. These materials are useful as bulk materials or coatings for the fabrication of medical devices. The staining method employs rhodamine 6G, which can be simply and rapidly applied to the polymer coating and imaged using fluorescence microscopy. The specificity of the staining for the PC polymers makes this technique suitable for the evaluation of a wide range of substrates and provides qualitative information on coating uniformity, coverage and morphology. It can be used to examine the durability of, and defects in, the coating. Statistical analysis of the fluorescent intensity by measuring the pixel value during imaging can allow for the method to be used as a quality control tool.     

Multi-scale polymer properties with applications to solid lubricants in ironing

The use of polymer laminated steels have received significant interest from the can-making industry as a potential base material, mainly due to environmental benefits and excellent solid lubrication properties. Internal corrosion prevention is also very important with food cans. Previous research has experimentally and mathematically analyzed this material, but the mechanical properties, especially the shear strength, of the polymer coating is difficult to obtain given its very small thickness. This paper obtains predictions of polymer coating strength through two approaches: a millimeter-scale approach based on a mathematical model of ironing, and a sub-micrometer scale approach based on asperity plowing with an atomic force microscope. Once piezo-strengthening effects are accounted for, the polymer strength predictions from the two methods are very close.     

热解-红外光谱分析技术在聚合物研究中的应用

本文综述热解-红外光谱分析技术的发展及其在聚合物研究中的应用。研究含能 材料的热降解过程,聚合物材料的燃烧(阻燃)特性,聚合物材料的热降解机理和热稳定性, 聚合物的反应过程,材料的结构鉴别等方面,热解-红外光谱分析都是非常有效的手段。     

Time‐lapse lab‐based x‐ray nano‐CT study of corrosion damage

An experimental protocol (workflow) has been developed for time‐lapse x‐ray nanotomography (nano‐CT) imaging of environmentally driven morphological changes to materials. Two case studies are presented. First, the leaching of nanoparticle corrosion inhibitor pigment from a polymer coating was followed over 14 days, while in the second case the corrosion damage to an AA2099 aluminium alloy was imaged over 12 hours. The protocol includes several novel aspects relevant to nano‐CT with the use of a combination of x‐ray absorption and phase contrast data to provide enhanced morphological and composition information, and hence reveal the best information to provide new insights into the changes of different phases over time. For the pigmented polymer coating containing nominally strontium aluminium polyphosphate, the strontium‐rich components within the materials are observed to leach extensively whereas the aluminium‐rich components are more resistant to dissolution. In the case of AA2099 it is found that the initial grain boundary corrosion is driven by the presence of copper‐rich phases and is then followed by the corrosion of grains of specific orientation.