兰州石化QC小组：斩获国际金奖！

Core Viewpoint - The "Yellow River Fiber Wave QC Team" from Lanzhou Petrochemical won the gold award at the 50th International Quality Control Circle Conference for their project on improving the qualification rate of Chlorinated Polyethylene L5200, marking the third time the company has achieved this international recognition [1][3]. Group 1: Quality Improvement Efforts - The qualification rate of Chlorinated Polyethylene L5200 fluctuated significantly, dropping below 85% at its lowest point, far from the target of 94% [3][6]. - A cross-departmental collaborative effort was initiated, involving production, equipment, and safety teams to address the quality issues, leading to a strong collective effort to tackle the core problems [3][6]. Group 2: Data Analysis and Solutions - The QC team conducted thorough on-site data collection and analyzed three years of production records, identifying the significant fluctuation in the melt index of the polymerization unit as the main issue [6][7]. - The team implemented innovative control methods to address the identified problems, resulting in a significant improvement in product qualification rates, which surpassed 95% for the first time [6][7]. Group 3: Achievements and Recognition - The average qualification rate of L5200 products increased from 89.9% to 98.6%, demonstrating substantial economic benefits and establishing a replicable standard operating procedure for quality enhancement in similar facilities [9]. - The successful presentation at the international conference highlighted the technical expertise of Chinese industrial workers, receiving commendations from international judges [9].