臺灣博碩士論文加值系統

密封件在工業上的用途相當廣泛，傳統上密封件的安裝是以手動的方式或以搭配的輔助治具組裝至定位，本研究為個案公司在量產插裝閥(Cartridge Valve)的過程中使用氣壓台和治具組裝小型密封件，利用田口實驗法(Taguchi Method)，在量產的過程中降低組裝密封件的不良率。
在實驗的過程中，本研究發現不論是治具設計的角度、粗糙度等，以及氣壓台的壓力的大小、下壓位置等，這些因子會造成密封件的組裝不良，而直接影響到組裝的工時。本研究利用田口實驗法的L8(27)直交表探討原先製程上的參數，且在實驗的過程中探討如何針對現況做改善，排除影響較小的影響因子後，再透過L4(23)直交表進行改善。
最後經由田口實驗法的望小特性，調整了原先組裝的氣壓台設定，以及組裝治具的設計，改善前組裝密封件的不良率為37.5%，改善後組裝的不良率降至5%，且改善前的密封件組裝工時為平均每10個78秒，而因為在不良率降低後，現場人員不必針對組裝不良的密封件進行重新調整的動作，因此在改善後組裝工時降低至平均每10個58秒。此改善成效奠定了後續組裝其他尺寸密封件的基礎，同時也顯示，本研究所採用的田口實驗法模式，可被應用於需要組裝大量密封件的相關產業。

Seals are used in a wide range of industrial applications. Traditionally, seals are assembled manually or with assisted tool. In this study, a pneumatic machine and tools were used to assemble small seals in the mass production of cartridge valves for the case company.
During the experiment, it was found that the angles and roughness of the tools design, as well as the pressure of the pneumatic machine and the press position can cause poor assembly of the seals, which directly affects the assembly time. In this study, Taguchi's L8(27) orthogonal array was used to investigate the original process parameters, and during the experiment, we explored how to improve the current situation, eliminating the less influential factors and then improving them through the L4(23) orthogonal array.
Finally, after adjusting the original assembly pneumatic machine setting and the design of the assembly tool by the Taguchi experiment, the defective rate of assembled seals was improved from 37.5% to 5%, and the assembly time was reduced from 78.7 seconds per 10 pieces on average to 56 seconds per 10 pieces on average. This improvement laid the foundation for subsequent assembly of other seal sizes and showed that the Taguchi experimental model used in this research can be applied to industries that require assembly of large numbers of seals.

中文摘要..................................i
英文摘要.................................ii
誌謝....................................iii
目錄.....................................iv
表目錄...................................vi
圖目錄..................................vii
第一章 緒論..............................1
1.1 研究背景..........................1
1.2 研究動機..........................1
1.3 研究目的..........................2
1.4 研究流程..........................2
1.5 研究限制..........................3
第二章 文獻探討..........................4
2.1 個案公司相關說明...................4
2.1.1 個案公司簡要介紹...................4
2.1.2 插裝閥的介紹.......................4
2.1.3 密封件介紹.........................6
2.1.4 密封件安裝的常見問題與要點..........7
2.1.5 小量的密封件組裝...................8
2.1.6 大量的密封件組裝...................9
2.2 田口實驗法.......................10
2.2.1 田口實驗法背景簡介................10
2.2.2 田口實驗法的應用步驟..............11
2.2.3 品質特性與因子種類................12
2.2.4 直交表...........................13
2.2.5 S/N信號雜訊比....................14
2.2.6 田口實驗法相關文獻................15
2.3 文獻總結.........................16
第三章 研究方法的應用...................18
3.1 田口實驗法於個案公司的應用........18
3.1.1 田口實驗法應用流程...............18
3.1.2 個案公司問題探討.................19
3.2 實驗過程及結果分析................21
3.2.1 選定品質特性與列出因子............21
3.2.2 因子水準與實驗配置................23
3.2.3 執行實驗與分析資料................25
3.2.4 第二次田口實驗...................31
3.2.5 列出因子與水準...................33
3.2.6 第二次田口實驗配置與執行..........35
3.2.7 分析資料.........................38
3.3 小結............................40
第四章 結論與建議.......................41
4.1 結論............................41
4.2 建議............................41
參考文獻.................................43
英文論文大綱.............................45

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