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研究生:趙啟盛
研究生(外文):Chi-Shen Jau
論文名稱:惰性氣體中直流電氣銀接點電弧特性和損耗形成機制之研究
論文名稱(外文):Study on Electric-Arc Characteristics and Formation Mechanism of Erosion for DC Silver Contacts in Inert Gas.
指導教授:邱源成
指導教授(外文):Yuang-Cherng Chiou
學位類別:碩士
校院名稱:國立中山大學
系所名稱:機械與機電工程學系研究所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:90
中文關鍵詞:惰性氣體接點電弧損傷
外文關鍵詞:inert gaselectrodearcerosion
相關次數:
  • 被引用被引用:12
  • 點閱點閱:447
  • 評分評分:
  • 下載下載:24
  • 收藏至我的研究室書目清單書目收藏:0
摘 要
本研究使用靜態接點試驗機加裝真空設備及氣體供應系統,針對常用之銀電氣接點,藉由改變不同惰性氣體、供應電壓及電極間隙等參數,進行實驗探討各個參數對銀接點電蝕之影響。實驗結果顯示在氦氣中的放電門檻電壓比在氬氣或空氣中高。另外觀察陽極損傷表面並對損傷面積與體積計算與分析,其結果為在氦氣中的損傷面積和體積都比在氬氣或空氣中小。由SEM照片上可觀察出,在氦氣中電蝕孔周圍金屬噴濺比在氬氣或空氣中小。期望以上結果可以提供國內電氣接點製造業界相關參數與改善接點研發技術,以及超精密加工環境─無塵室之塵粒污染相關設計之參考。
Abstract
In this study, a static electric contact tester with a vacuum system and gas supply system is used to investigate the effects of experimental parameters, such as inert gas kind, supply voltage, and the gap between the contacts, on the electric-arc characteristics and the erosion type for the electric contacts of silver. The experimental results show that chargeable threshold voltage in helium is higher than that in argon or air. In addition, the erosion surface of anode is observed, and the erosion area and volume are calculated and analyzed. Results show that the erosion area and volume in helium are smaller than that in argon or air. According to the observation of SEM photomicrographs, metal sputtering of the erosion hole in helium is smaller than that in argon or air. It is expected to provide the domestic electrical contact manufacturer in improving the research and development technique of the electrical contacts, and the design reference related to ultra-precision machining using a clean room.
總目錄i
圖目錄iv
表目錄vii
符號說明viii
中文摘要ix
英文摘要x
第一章 緒論1
1.1 前言1
1.2 放電現象發生與種類4
1.3 氣體放電原理6
1.3.1 電漿的形成7
1.3.2 電子的放射11
1.3.3 電弧的形態12
1.3.4 間隙與電弧形態14
1.4 惰性氣體介紹13
1.5 文獻回顧17
1.5.1 接點特性17
1.5.2 電極間隙對電弧放電的影響18
1.5.3 環境氣壓對電弧放電的影響20
1.5.4 環境氣氛對電弧放電的影響21
1.6 本論文重點23
1.7 本論文架構24
第二章 試驗機設計原理及實驗方法25
2.1 實驗設備25
2.1.1 靜態接點試驗機系統26
2.1.2 間隙控制機電系統設計30
2.1.3 真空系統32
2.1.4 量測及資料收集處理系統35
2.1.5 氣體供應系統37
2.2 實驗材料38
2.2.1 接點試片尺寸及其材料特性38
2.2.2 試片處理40
2.3 實驗條件42
2.4 實驗步驟43
第三章 實驗結果與討論46
3.1 參數符號說明46
3.2 電弧電壓與電流波型50
3.3 放電門檻脈衝電壓50
3.3.1 陽極銀試片放電門檻脈衝電壓51
3.4 不同氣體與間隙效應對電弧放電的影響53
3.4.1 不同氣體與間隙效應對電弧特性的影響53
3.5 不同氣體下電氣接點的電蝕損傷情況61
3.5.1 不同氣體下對陽極銀試片電蝕損傷61
3.5.2 不同氣體下對電蝕孔金屬噴濺71
3.6 電極試片間的材料轉移機制75
3.6.1 鐵元素的分析75
3.6.2 間隙效應對材料轉移機制79
第四章 結論84
參考文獻86
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