水液压泵金属材料抗蚀性能研究

发布时间：2018-05-28 11:18

本文选题：水液压传动 + 水液压泵　；参考：《浙江大学》2012年硕士论文

【摘要】：液压传动技术是现代工业广泛应用技术之一。它以其很高的输出功率-质量比和大范围无级调速等优点成为诸如工程机械等重型设备领域首选的传动技术。水液压传动技术具有绿色、无污染等优势,是液压传动技术的重要发展方向。水液压泵作为水液压传动技术的核心元件,其性能优劣将直接对水液压传动系统的整体性能和寿命产生重大影响。然而,由于水介质固有特性的影响,水液压传动元件的研制都面临着诸如腐蚀、润滑、摩擦磨损、抗气蚀等重大基础问题。因此,开展水液压泵金属材料及其工艺的基础试验研究,不仅对研制水液压泵具有实际意义,也对于其他类型的水液压元件的研制具有重要的参考意义。本论文基于前一代试验样机中出现的关键元部件抗蚀差等问题,对于一些筛选后的金属材料及工艺配对进行了抗蚀性能的研究,并根据研究结果分析试制了新一代的试验样机。根据最后的试验结果表明：新的样机在抗蚀性能上得到了较大的提高,相对于前一代样机有了明显的改观。论文主要内容如下：第一章,概述了水液压技术背景以及国内外水液压元件材料抗蚀性能方面和样机研制方面的现状及相关产品,结合实际提出了本课题研究的重要意义。第二章,分析了水液压泵不同零部件对金属材料的不同要求,确立了金属材料抗蚀试验的总体方案,并初步选定了一些金属材料和工艺配对作为考察对象。第三章,介绍了所选定金属材料的盐雾试验,按照相关标准规范设计并完成了盐雾试验,试验中定时观察并做好记录,试验后对试件进行了清洗、称重、留影和宏观分析。第四章,讨论了盐雾试验后各组配对的微观表现,利用电子显微镜及能谱仪等仪器对试验后的各组配对进行了分析研究,总结出了一定的共性问题。第五章,介绍了水液压泵实体样机的试制方案、考核试验及试验后状况分析,各项考核试验后,经拆机检查之后,样机总体性能表现良好,各零件表现出了良好的抗蚀能力。第六章,总结概述全文内容,对于课题方向提出展望。
[Abstract]:Hydraulic transmission technology is one of the widely used technologies in modern industry. It has become the preferred transmission technology in the field of heavy equipment such as construction machinery because of its high output power-mass ratio and wide range stepless speed regulation. Water hydraulic transmission technology has the advantages of green and no pollution, so it is an important development direction of hydraulic transmission technology. Water hydraulic pump as the core component of water hydraulic transmission technology, its performance will directly affect the overall performance and life of water hydraulic transmission system. However, due to the influence of the inherent characteristics of water medium, the development of water hydraulic transmission elements is faced with such important basic problems as corrosion, lubrication, friction and wear, cavitation resistance and so on. Therefore, it is of great significance not only for the development of water hydraulic pump, but also for the development of other types of water hydraulic components to carry out the basic experimental research on metal materials and its technology of water hydraulic pump. In this paper, the corrosion resistance of some selected metal materials and process pairs has been studied based on the anti-corrosion difference of key components in the previous generation of test prototype, and a new generation of test prototype has been developed based on the analysis of the research results. The experimental results show that the corrosion resistance of the new prototype is greatly improved compared with the previous prototype. The main contents of the thesis are as follows: In the first chapter, the background of water hydraulic technology, the current situation of corrosion resistance of water hydraulic components at home and abroad and the development of prototype and related products are summarized, and the significance of this research is put forward in combination with the practice. In the second chapter, the different requirements of different parts of water hydraulic pump for metal materials are analyzed, the overall scheme of corrosion resistance test of metal materials is established, and some metal materials and process pairs are preliminarily selected as the object of investigation. In the third chapter, the salt spray test of the selected metal material is introduced. The salt spray test is designed and completed according to the relevant standards and specifications. The test is observed and recorded at regular time. After the test, the specimen is cleaned, weighed, photographed and macroscopically analyzed. In chapter 4, the microcosmic behavior of each group pairing after salt spray test is discussed, and some common problems are summarized by means of electron microscope and energy spectrometer. In the fifth chapter, the paper introduces the trial production scheme of the solid prototype of the water hydraulic pump, the examination test and the analysis of the condition after the test. After each examination test, the overall performance of the prototype is good after the disassembly machine is checked, and the parts show good corrosion resistance. The sixth chapter summarizes the content of the full text and puts forward the prospects for the direction of the subject.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137.51;TG174.3

【引证文献】