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基于AHP和Pugh Matrix法的叶片表面强化工艺研究

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  • 1. 江南大学机械工程学院;2. 无锡透平叶片有限公司
武美萍(1970-), 教授, 博士,研究方向为数字化设计与制造、复杂装备智能化制造,电话:13665165954,E - mail: wumeiping163@163.com

收稿日期: 2021-09-27

  修回日期: 2021-10-20

  录用日期: 2021-11-30

  网络出版日期: 2023-12-24

基金资助

国家自然科学基金(52105346)资助

Study on Surface Strengthening Technology for Blades Based on AHP and Pugh Matrix Method

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  • 1. College of Mechanical Engineering, Jiangnan University, Wuxi 214122, China;2. Wuxi Turbine Blade Co., Ltd., Wuxi 214174, China

Received date: 2021-09-27

  Revised date: 2021-10-20

  Accepted date: 2021-11-30

  Online published: 2023-12-24

摘要

为了评价多种表面强化工艺对汽轮机叶片的适用性,采用层次分析(AHP)法,以表面质量、表面性能和经济适用性为准则层,以14种重要评价指标为指标层,建立汽轮机叶片表面强化工艺评价体系,依次对准则层和指标层各参数进行赋权。以热喷涂工艺为基准,运用普氏矩阵(Pugh Matrix)方法,对多种表面强化工艺和传统叶片防水蚀技术进行横向对比,将对比结果的最优工艺再次作为基准,进行2次对比。首次对比后发现最优工艺为纯水射流,2次对比后发现,较传统的叶片防水蚀技术而言,磨料水射流、双辉等离子体渗金属、电火花沉积等新型强化技术均具有多方面的优势,优劣权重差值依次为0.073 6、-0.050 2和0.155 3。纯水射流、磨料水射流、双辉等离子体渗金属、电火花沉积等存在应用于叶片防水蚀技术上的可能。

本文引用格式

龙婷玉, 武美萍, 缪小进, 叶峰, 王相蕊, 匡逸强 . 基于AHP和Pugh Matrix法的叶片表面强化工艺研究[J]. 材料保护, 2022 , 55(1) : 135 -141 . DOI: 10.16577/j.issn.1001-1560.2022.0017

Abstract

 In order to evaluate the applicability of various surface strengthening technology for steam turbine blades, the evaluation system of steam turbine blade surface strengthening technology was established by analytic hierarchy process (AHP) method, taking surface quality, surface performance and economic applicability as criteria layers, and 14 important evaluation indexes as index layers, and then assigning the weight to the parameters of criterion layer and index layer in turn. Based on the thermal spraying process, a variety of surface strengthening processes were compared horizontally with the traditional blade anti - water erosion technology through Pugh matrix method. The optimal technology of the contrasted results was used as the benchmark again, and then the second comparison was made to obtain the accurate comparison results. Results showed that the optimal process of the first comparison was pure water jet. After secondary comparison, it was found that compared with the traditional blade waterproofing technologies, new strengthening technologies such as abrasive water jet, double glow plasma metal penetration and electric spark deposition all had extensive advantages, the weight difference between advantages and disadvantages of which were 0.073 6, -0.050 2 and 0.155 3, respectively. In conclusion, pure water jet, abrasive water jet, double glow plasma metal penetration, electrospark deposition all had the possibility to be applied in the blade anti - water erosion technology.
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