Nur Rahmawati, Muchammad Aldiansyah, Evi Yuliawati, Dian Trihastuti
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引用次数: 0
摘要
PT XYZ是一家生产热轧卷(HRC)钢产品的公司。该工艺中使用的机器之一是铣削过程中的粗磨机。问题是粗磨机的停机时间会扰乱生产过程时间。本研究的目的是确定机器的有效性价值,找到影响机器有效性价值的最大损失,找出最大损失的原因,并为改进步骤提供建议。所采用的方法是设备总体有效性(OEE)、六大损失(six big losses)和失效模式效应和临界性分析(FMECA)。结果表明,XYZ PT的平均OEE值为80%,但该值仍不符合理想标准。通过识别六大损失,最重要的损失是降低的速度损失,其总百分比值为86%,平均时间损失为5020分钟。FMECA结果得出了造成最大损失的三个部件:发动机电机、变速箱和主轴。改进建议包括制定和设定计划,对粗磨机实施预测性维护和预防性维护,定期检查和更换部件备件。
Application of Overall Equipment Effectiveness and Failure Mode Efffect and Criticality Analysis Methods to Improve Machine Performance Effectiveness
PT XYZ is a company that produces hot rolled coils (HRC) steel products. One of the machines used in the process is a rough mill machine in the milling process. The problem is downtime on the rough mill machine that disrupts the production process time. The purpose of this study is to determine the value of the effectiveness of the machine, find the largest losses that affect the value of the effectiveness of the machine, identify the cause of the biggest losses and provide recommendations for improvement steps. The methods used are overall equipment effectiveness (OEE), six big losses, and the failure mode effect and criticality analysis (FMECA). The results show that the average OEE value of PT XYZ is 80%, but this value was still not following the ideal standard. By identifying the six big losses, the most significant losses are reduced speed losses, with a total percentage value of 86% and an average time loss of 5,020 minutes. FMECA results obtain three components that cause the biggest losses: the engine motor, gearbox, and spindle. Recommendations for improvement include making and setting schedules, implementing predictive maintenance and preventive maintenance on rough mill machines, and regularly checking and replacing component spare parts.