臺灣博碩士論文加值系統

近年塑膠產品的需求量越來越大，為了滿足生產的彈性與效率，同一副模具須面臨在不同射出機生產的情況，模具更換射出機時須進行製程參數的調整，調整參數的過程中往往耗費大量時間與材料加上國內老師傅日漸凋零，年輕一代學徒經驗傳承出現斷層，因此急需建立不同射出機之間的製程參數轉換技術。
本文以Arburg 320C、台中精機VS-50K為例建立一套利用製程參數轉換的方式，首先對射出機之特性分別用螺旋模具進行檢測，檢測項目包含應答性、逆流量、射出速度、壓力、溫度等，整理檢測結果比較兩台射出機台的特性差異，建立射出機台校正曲線，作為參數轉換的依據。本文以6吋導光板做為驗證機台參數轉換的載具，分別在不同射出機台進行成型，以6吋導光板產品進行外觀、重量、模內壓力曲線、光程差之結果做比較。
本研究顯示，檢測射出機之結果可以發現到保壓壓力的差異對於產品品質的影響最大，兩台不同規格之射出機經過參數轉換所產出的6吋導光板在排除應達性的因素後產品重量差異在0.41g內、模內壓力曲線最大壓力差異在18bar內、光程差差異相近，實驗驗證結果顯示經過機台參數轉換後兩台不同規格之射出機能產出品質相近的產品並且減少模具更換射出機後的參數調整次數以提升業界生產效率、解決技術斷層問題。

Recently, the demand of plastic products was grown up quickly. In order to meet flexibility and efficiency of production. When injection mold change to different injection machines necessary to regulate process parameters. To regulate process parameters always waste time and material. Additional, lots of technique and experience of the old master workers was gradually diminished, and younger generation cannot follow it. Therefore, it is necessary to establish a parameter transfer technology between different injection machines and solve the technical fault issues.
In this paper, injection molding machine Arburg 320C and Taichung VS-50K as an example to parameters conversion process was established. To seperate detect two injection mold machine by spiral flow mold. Detected item including machine responsiveness, check ring leaks, injection speed, pressure and temperature. Detection feature comparison of two injection machines of different characteristics to set up the calibration curve of injection molding machine for the parameters was converted to each other. In this study, a 6 inches light guide plate was used to verify the molding parameter conversion. With 6 inches light guide plate compare of product appearance, weight, cavity pressure curve and retardation.
The result shows, Detected injection molding machines’ feature was found packing pressure were difference effects the quality of the product for the greatest. After two different injection molding machine through the produce parameter conversion in the light guide plate 6 inches if excluded of machine responsiveness factor, The products’ deviation of weight were in 0.41g and deviation of max of cavity pressure curve were in 18 bar, and deviation of retardation were nearly. The result shows after parameters was converted two injection machines can produce similar quality products and to reduce the number of transfer molding machine injection mold replacement after transfer mode to improve efficiency of the industry and solve technical fault problem.

目錄
摘要 I
ABSTRACT II
誌謝 III
目錄 IV
圖目錄 VII
表目錄 XII
第一章、 緒論 1
1.1前言 1
1.2研究動機與目的 3
1.3文獻回顧 4
1.3.1逆流量文獻 6
1.3.2流動性文獻 6
1.3.3品質監控文獻 9
1.3.4內應力相關文獻 12
1.4論文架構 15
第二章、 基本原理 16
2.1射出成型原理 16
2.2射出機台轉換原理18
2.3感測器原理 [17] 18
2.4殘留應力簡介 [18] 19
2.4.1 雙折射(Birefringence)[18] 22
2.4.2殘留應力的量測─光彈原理[19] 23
第三章、 機台參數換算加補償 25
3.1機台轉換的關鍵 25
3.2轉換原理 30
3.3 MOLD FLOW實例驗證 36
3.3.1一段保壓驗證 37
3.3.2分二段保壓驗證 42
第四章、 參數成型與產品量測 46
4.1實驗規劃 46
4.1.1機台檢測 46
4.1.2驗證 46
4.2實驗流程 47
4.2.1機台檢測方式 48
4.2.1驗證方式 54
4.3實驗設備 58
4.3.1塑膠材料 58
4.3.2檢測模具 59
4.3.3射出機與模溫機 61
4.3.4量測設備 65
4.4產品檢測 68
4.4.1模內壓力值 68
4.4.2重量量測 69
4.4.3光程差量測 69
第五章、 結果與討論 71
5.1機台檢測結果 71
5.1.1射出速度檢測 71
5.1.2保壓壓力檢測 74
5.1.3射出速度逆流量檢測 76
5.1.4保壓壓力逆流量檢測 78
5.1.5熔膠溫度檢測 80
5.2驗證結果 82
5.2.1轉換後模內壓力比較 82
5.2.2轉換後重量比較 84
5.2.3 台中精機2次補償比較 87
5.2.4轉換後光程差比較 100
第六章、 結論與未來展望 118
6.1結論 118
6.2未來展望 119
參考文獻 120

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