運用管制圖與可靠度探討機台之預防維護保養模式

在製造系統當中，機器設備的預防維護保養是相當重要的，在機器設備故障前進行預防維護，能使機器設備的可靠度提高且延長使用的時間並降低故障的機率，以利製程順利進行。若機台發生故障，將會影響到生產線上的運作和生產排程。因此，制訂預防維護保養的計畫，在適時的時間點進行預防維護，並在預防維護間隔內進行至製程管制，能快速的發現製程上的變異，以提升企業的競爭力並減少故障所產生的不要的成本。本研究結合預定年限更換策略、機台可靠度與管制圖之經濟性設計，建立一套模擬預防維護保養計畫，求出最佳預防維護時距，使設備功能變異與故障降至最低，另製程更加穩定。同時，利用所建立模型，可呈現抽樣間隔、抽樣數量對成本的影響。

關鍵字

預防維護；可靠度；預定年限更換策略；管制圖

並列摘要

In the manufacturing system, the preventive maintenance of machine equipment is very important, before the machine equipment failure to carry out preventive maintenance, can improve the reliability of the machine equipment and extend the use of the time and reduce the chance of failure, in order to facilitate the smooth process. If the machine fails, it will affect the operation and production schedule on the production line. Therefore, the development of preventive maintenance plans, at the timely point of time for preventive maintenance, and in the prevention maintenance interval to process control, can quickly detect the process variation, in order to enhance the competitiveness of enterprises and reduce the cost of failure. Combining the Replacement at predetermined age, machine reliability and the economic design of the control chart, this study establishes a set of simulated preventive maintenance plan, and finds the best preventive maintenance time distance, so that the equipment function variation and failure are minimized, and the other process is more stable. At the same time, the effect of sampling interval and sample quantity on cost can be presented by using the model established.