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  • 學位論文

產品包裝之可靠度實驗分析

Experimental Analysis in Reliability for Product Packaging

指導教授 : 張永鵬 康淵

摘要


在物品包裝運送過程中,常因物品跌落或受到撞擊,使衝擊造成包裝內容物損壞,使用緩衝材料可以減緩包裝內容物受到衝擊外力時的傳遞力量,藉由包裝用緩衝材料的動態壓縮試驗,可以評價緩衝材料在衝擊作用下的緩衝性能,與產品本身的脆值比較,包裝設計者可決定緩衝包裝材料,及計算緩衝材料所需的用量,進一步將內容物與包裝經過落下試驗,以確保流通過程中包裝對內裝產品的保護能力。本文探討包裝材受到定額衝擊能量的動態緩衝曲線及最大加速度,並且利用動態緩衝曲線求得緩衝材料的緩衝係數,可以評價緩衝材料的緩衝效率,根據衝擊緩衝材料之加速度歷時圖建立計算衝擊時的最大壓縮高度,最大加速度用來評價緩衝材料受衝擊的截止加速度,本文實驗三種緩衝材料及其複合型式,根據實驗結果得知,緩衝材料厚度及材質對於保護內容物品的能力。 最後以發泡聚乙烯(Extruded Polyethylene Foam)緩衝材料進行緩衝包裝設計,並利用落下試驗來對此包裝系統進行可靠度之驗證,利用產品脆值與動態緩衝曲線,計算出緩衝材料所需的用量,並以部分緩衝包裝法,加以完成產品緩衝包裝系統,且以落下試驗進行可靠度驗證,利用加速規量測產品落下後之最大加速度,觀察其大小是否可小於產品脆值,以防止產品在摔落過程中損壞。

並列摘要


During the transportable process, the products which are often damaged with shock or drop, used cushioning material can be reduced these damages. The package designer can decide and estimate the cushioning material based on the product fragility and evaluate its performance by dynamic compression experiments. The protections of package products are ensured further due to the dropping experiments. This study investigates dynamic cushioning curve and maximum acceleration by shock with constant energy of package materials. The cushion factor, cushion efficiency, maximum comparison height and cut-off acceleration of cushioning materials are obtained and evaluated form dynamic cushioning curve and maximum acceleration, respectively. Based on experimental results, the thickness and property to protect the products of cushioning material for three kind materials and these complex types in this study. The cushioning package designed by Extruded Polyethylene Foam (EPE), to verify the reliability of package system in ultimate dropping experiment.

參考文獻


[1] Mindlin, R. D., “Dynamics of Package Cushioning,” Bell System Technical Journal, Vol. 24, No. 3-4, 1945.
[3] Wang, Z. W., Hu, C. Y., “Shock Spectra and Damage Boundary Curves for Non-linear Package Cushioning Systems,” Packaging Technology and Science, Vol. 12, No. 5, pp. 207-217, 1999.
[8] Wang, Z., Wu, C., Xi, D., “Damage Boundary of a Packaging System under Rectangular Pulse Excitation,” Packaging Technology and Science, Vol. 11, No. 4, pp. 189-202, 1998.
[10] Kipp, W. I., “Developments in Testing Products for Distribution,” Packaging Technology and Science, Vol. 13, No. 3, pp. 89-98, 2000.
[13] Miltz, J, Gruenbaum, G., “Evaluation of Cushioning Properties of Plastic Foams from Compressive Measurements,” Polymer Engineering and Science, Vol. 21, No. 15, pp. 1010-1014, 1981.

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黃建強(2016)。氣墊床幫浦固定板之結構改善及分析〔碩士論文,中原大學〕。華藝線上圖書館。https://doi.org/10.6840%2fcycu201600096
江瑞琪(2007)。以EPP緩衝包材包覆之液晶單元落下試驗與數值模擬〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342%2fNTU.2007.00691

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