文档介绍：上海交通大学工程硕士学位论文摘要 I 主润滑油泵齿轮材料国产化替代和表面处理研究摘要当前在国内积极引进吸收国外先进产品技术的大环境中,齿轮作为现代机械中不可或缺的重要部件,在诸多国产化工作中都毫无疑问的置于了重要的地位。本文对实际工作中主润滑油泵用齿轮的国产化材料替代和表面处理工艺变更的可操作性方面做了研讨和实践试生产,并取得了较为圆满的效果。这些研讨主要包括了如下内容: 1 )分类汇总了各种齿面可见表面的形貌和齿轮上可观察到的损伤失效模式,并分析了可能原因和形成过程,为齿轮材料和热处理的下一步工作做好准备。 2 )从选用材料的各方面特性出发,从理论上讨论了国产材料替代国外齿轮材料的可行性。 3 )研究了常见齿轮表面硬化处理的工艺和特点,探讨了辉光离子氮化替代原图纸要求的氮碳共渗的可行性,并进行了试制。 4 )通过对国产化齿轮的齿面接触疲劳强度和齿根弯曲疲劳强度进行校核计算,从理论角度论证国产化齿轮工作的可靠性。 5 )通过性能试验,装机运行实验,拆检外观检测,轮齿复检,齿轮材料解剖实验,对国产化项目齿轮材料替代和齿轮表面硬化工艺变更的可行性进行了实践验证;证明了先前的更改方案的完全可以实现并保证设备正常运转。通过这些研究和验证,一方面完成了本公司国产化主润滑油泵项目的关重零部件,为整个项目的最后成功扫清了障碍。另一方面也为其他类似的齿轮项目和类似的材料或表面处理项目提供了有力的参考和实践依据。关键词: 齿轮,国产化,材料替代,离子氮化,齿面接触疲劳强度,齿根弯曲疲劳强度上海交通大学工程硕士学位论文 ABSTRACT II STUDY ON THE LOCALIZATION OF SUBSTITUTED RAW MATERIAL AND SURFACE TREATMENT FOR GEAR WHEELS OF MAIN LUBRICATION OIL PUMP ABSTRACT In the domestic background of importing and absorbing foreign product technology, gear wheel is a indispensable important part in modern mechanical industy, and gear wheel is always placed as an important position in many localization projects without question. This text makes the analysis, study, discussion, and test manufacture in practice to the gear wheels of main lubrication oil pump in the material substitution and the process modification of surface treatment. A quite good result is achieved. All the analysis, study, and discussion include the below content: 1) Class and summary all kinds of appearance of the visiable the damage and failure mode that can be observed on gears; and its possible formation process and root reasons are also analysis ed. It is prepared for next step to gear wheel material and heat treatment. 2) From of each characteristic of selected raw material type, the possibility is discussed in theory that local raw material substitutes original gear wheel raw material. 3) To analysis the common gear tooth surface h