運用田口方法提高聚丙烯腈纖維紡絲製程的實驗效率

Applying Taguchi Method to Improve Experimental Efficiency of Polyacrylonitrile Fiber Spinning Process

程宜鴻(Yi-Hung Cheng)

指導教授 ： 楊太宏

國立虎尾科技大學/管理學院/工業工程與管理研究所/碩士(2014年)

摘要

現今科技越來越發達，在各種領域上的實驗越來越複雜，相對的實驗成本與時間越來越高。本研究之目的在探討田口方法於聚丙烯腈纖維製程上的應用，以聚丙烯腈纖維之亞克力絲束紡絲製程為例，藉由控制因子與水準之設定，評估因子在亞克力絲束紡絲製程中影響的重要性程度，以提高實驗效率並降低實驗成本。聚丙烯腈纖維製造工廠提供亞克力絲束紡絲製程之相關數據，應用田口式直交表來評估因子水準影響品質特性的程度，再將評估出的實驗組合進行小範圍實驗，找出製程中可能的較佳參數組合，運用少量實驗次數來達到降低實驗成本的目的。
亞克力絲束紡絲製程，本文考慮了溶劑濃度、紡液溫度、流量對原絲強度的影響。本研究使用L18(21×32)直交表進行實驗，以因子反應分析觀察出較佳組合，並對此組合進行預測，由預測及交互作用分析出之實驗組合，進行小範圍實驗，找出製程中可能的較佳參數組合。實驗結果得知，32次的實驗可與92次的實驗得到相同的實驗結果，節省至少1080小時的實驗時間，並減少了60次實驗以上的實驗成本。經由實驗得知，田口方法有效的提升實驗效率、降低實驗成本，可以藉此提供合成纖維製造工廠之其他製程實驗之參考。

關鍵字

田口實驗設計 ； 田口式直交表 ； 合成纖維

並列摘要

Now technology is increasingly developed, experiments in various domains are increasingly complex, thus relatively experimental cost and time used are increasingly getting higher, so the study aims at using Taguchi method applied to experiment for polyacrylonitrile fiber process. The study takes polyacrylonitrile fiber’s acrylic spinning process as example, by means of setting control factors and levels, to evaluate their importance of effect in acrylic strand process, so that accuracy of experimental prediction can be enhanced and cost can be reduced. With related data of acrylic strand process provided by polyacrylonitrile fiber manufacturing plant, and further conducts small range experiment with evaluated experimental combinations, applies Taguchi orthogonal table to evaluate their level of effect in factors affecting quality features, and further conducts small range experiment with evaluated experimental combinations, to find out possible preferred parameter combinations in the process, thereby with less experiment times the objective of reducing experimental cost can be achieved.
In acrylic spinning process, the study considers effects of solvent concentration, dope temperature, and flow rate toward raw spinning intensity. The study adopts L18(21×32) orthogonal table to conduct experiment, with factor reaction analysis to observe preferred combinations, and conducts predictions with such combinations, and with experimental combinations from the predictions and interaction analysis, small range experiment is conducted, thus possible preferred parameter combinations in process are found. From experimental results, it is found that the experimental results of 32 times experiments are equivalent to that of 92 times, so at least 1080 hours of experimental time is saved, and more than 60 times of experiments costs are saved. From the experiment, it is found that Taguchi method is capable of effectively enhancing experimental efficiency, reducing experiment cost, and thereby it can be provided for reference in experiments of other processes in synthetic fiber processing plants.

並列關鍵字

Taguchi experimental design method ； Taguchi orthogonal array ； synthetic fiber

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