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Improving Quality of Seal Leak Test Product using Six Sigma

机译：使用六西格玛提高密封泄漏试验产品的质量

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摘要

Seal leak test part is a polyurethane material-based product. Based on past data, defect level of this product was 8%, higher than the target of 5%. Quality improvement effort was done using six sigma method that included phases of define, measure, analyse, improve, and control. In the design phase, a Delphi method was used to identify factors that were critical to quality. In the measure phase, stability and process capability was measured. Fault tree analysis (FTA) and failure mode and effect analysis (FMEA) were used in the next phase to analize the root cause and to determine the priority issues. Improve phase was done by compiling, selecting, and designing alternative repair. Some improvement efforts were identified, i.e. (i) making a checklist for maintenance schedules, (ii) making written reminder form, (iii) modifying the SOP more detail, and (iv) performing a major service to the vacuum machine. To ensure the continuity of improvement efforts, some control activities were executed, i.e. (i) controlling, monitoring, documenting, and setting target frequently, (ii) implementing reward and punishment system, (iii) adding cleaning tool, and (iv) building six sigma organizational structure.
机译：密封泄漏试验部分是聚氨酯材料的产品。基于过去的数据，本产品的缺陷水平为8％，高于目标为5％。使用六种Sigma方法进行质量改进努力，其中包括定义，测量，分析，改进和控制的阶段。在设计阶段，使用Delphi方法来识别对质量至关重要的因素。在测量阶段，测量稳定性和工艺​​能力。故障树分析（FTA）和故障模式和效果分析（FMEA）用于下一阶段以分析根本原因并确定优先级问题。通过编译，选择和设计替代维修来完成阶段。确定了一些改进努力，即（i）制作维护时间表的清单，（ii）制定书面提醒表格，（iii）更详细地修改SOP，（iv）对真空机器进行主要服务。为确保改进努力的连续性，执行了一些控制活动，即（i）频繁地控制，监测，记录和设定目标，（ii）实施奖励和惩罚系统，（iii）添加清洁工具和（iv）建筑物六西格玛组织结构。

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