本研究使用可調整之高精度的微間隙距離之靜態接點電蝕試驗機加裝真空設備，用來進行實驗。針對常用之銀電器接點，藉改變氣壓、電壓、及電極間隙等參數，進行實驗探討各參數對銀接點電蝕之影響。同時對接點表面之損傷形態進行計量與觀察，探討不同之實驗參數對電弧特性和接點損耗形態之影響，建立一套完整之電弧及損耗機制準則。並提供國內電器接點製造業改善接點研發技術，以及超精密加工環境-無塵室設計之參考。

In this research, a static electric contact tester with a vacuum system is used to inverstigate the efedts of experimental parameters, such as air pressure, input voltage and current, contact material, and the gap between the contacts, on the electric-arc characteristics and the erosion debris type for the electric contacts of silver (Ag). The experiments are conducted under various experiment parameters, and the erosion debris is collected. After each experiment, the erosion debris will be calculated and observed to investigate the difference between erosion particles under various experiment conditions. Moreover, according to the results of the metallic phase and gaseous phase arc duration and the erosion particle type under various air pressures and the gaps, the electric-arc criterion and the erosion mechanism of DC electrical contacts will be established to provide the domestic electrical contact manufacture in improving the research and development technique of electrical contacts, and the design reference of super precision environment—clean room

總 目 錄
頁次
中文摘要 i
英文摘要 ii
總目錄 iii
圖目錄 vi
表目錄 ixi
符號說明 xii

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 電弧放電原理 6
1.3.1 電漿的形成 6
1.3.2 電子放射的種類 10
1.3.3 電子放射與電弧形態 13
1.3.4 間隙與電弧形態 14
1.4 文獻回顧 17
1.4.1 接點特性 17
1.4.2 電極間隙對電弧放電的影響 18
1.4.3 環境氣壓對電弧放電的影響 20
1.5 本論文重點 22
1.4 本論文架構 23

第二章 試驗機設計原理及實驗方法 24
2.1 實驗設備 24
2.1.1 靜態接點試驗機系統 25
2.1.2 充放電迴路電感量測 28
2.1.3 間隙控制電系統設計 31
2.1.4 真空系統 33
2.1.5 量測及資料收集處理系統 35
2.2 實驗材料 37
2.2.1 接點試片尺寸極其材料特性 37
2.2.2 試片處理 37
2.3 實驗條件 41
2.4 實驗步驟 42

第三章 實驗結果與討論 45
3.1 參數符號說明 45
3.2 電弧特性與電壓、電流波形 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
3.3.2 陰極銀試片放電門檻脈衝電壓 53
3.4 氣壓與間隙效應對電弧放電的影響 55
3.4.1 氣壓與間隙效應對電弧特性的影響 55
3.4.2 崩潰電壓與Paschen law 64
3.5 電氣接點的電蝕損傷形成機制 71
3.5.1 氣壓效應對陽極銀試片電蝕損傷的影響 71
3.5.2 氣壓效應對陰極銀試片電蝕損傷的影響 79
3.5.3 陰極試片的表面形態 86
3.5.4 電氣接點的電蝕損傷面積 97
3.5.5 間隙效應與電蝕損傷形成模式 104
3.5.6 電極試片間的材料轉移 106

第四章 結論 111

參考文獻 113

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