設備非預期停機與維護問題之研究 ─ 以台灣液晶顯示器JI製程為例

The Study of Equipment Unexpected Downtime and Maintenance Problems ─ A Case Study of JI Process of a Liquid Crystal Display Company

魏勳軍(Hsun-Chun Wei)

指導教授 ： 鄭純媛 ； 孫德修

朝陽科技大學/理工學院/工業工程與管理系/碩士(2016年)

摘要

針對需不停機地持續生產的設備，若設備發生非預期停機，會使生產線運作遲緩，導致產品產出減少以及生產週期拉長，甚至可能導致產品異常或報廢損失。這些非預期停機會使企業的營運成本大幅上升。本研究以台灣某液晶顯示器JI製程為例，蒐集該製程設備非預期停機的歷史資料，將非預期停機狀況依停機時長度區分為短暫停機與故障停機二類。針對短暫停機部分，本研究應用個案分析方法以及QC手法，找出短暫停機的原因後，再發展解決對策並制定標準作業書。針對故障停機部分，本研究應用統計分析方法，建立設備的故障機率模式與可靠度函數，並建構預防保養模式，使設備管理者可依據企業的需求，透過設備的可靠度函數，制定預防保養的政策。

關鍵字

非預期停機 ； QC手法 ； 故障機率模式 ； 預防保養模式

並列摘要

For the production equipment requiring no interruption of unexpected downtime, the production line may be slowed and may cause output quantity being reduced, production cycle time being longer, and defective or scrap products being increased if the unexpected downtime are occurred. Thus, the unexpected downtime of production equipment can make a substantial increase in business operating costs. In this research, the equipment unexpected downtime problem of a Liquid Crystal Display Company in Taiwan is used as an example case to study the causes of unexpected downtime and to development the solution strategy. The historical data of equipment were collected to analyze the problem of unexpected downtime. The unexpected downtime is categorized as brief-stop and failure in this study. The methods of case study and QC tools are applied to explore the causes for the brief-stop condition; the statistics methods are applied to analyze the distribution of time between failure, to develop the reliability model, and then to construct the preventive maintenance model for the failure condition. This research can provide equipment managers the methodology and models for solving the downtime problems according to the needs of enterprise.

並列關鍵字

unexpected downtime ； QC tools ； failure distribution model ； preventive maintenance model

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