| dc.description.abstract | The plastic industry is a relatively mature sector that has faced increasing competition from China and Southeast Asian countries in recent years. To maintain its production advantage in Taiwan and maximize profits, it needs to enhance competitiveness in manufacturing costs. For plastic injection molding, raw material costs constitute a significant portion of production expenses. Therefore, reducing production losses is crucial. This not only lowers material costs but also enhances production efficiency, thereby strengthening competitiveness and sustaining business profitability.
Given that many plastic injection molding businesses are small or medium-sized enterprises with limited human resources for complex improvement projects, this paper adopts the DMAIC method. Starting from problem definition, it utilizes existing systems to collect data and establishes cause-and-effect analysis, regression, and decision tree models to identify factors affecting losses. The improvement process is divided into two stages: immediate improvement and preventive improvement. Finally, in the control stage, push notifications are used as reminders for exceeding limits to achieve real-time production improvement. | en_US |