The Study Of Grid Casting Quality Improvement For The VRLA Battery Of D Company

With the sustained and rapid development of economy in China, the basic industry develop very fast such as automobile, motorcycle, electro mobile, communications, information, electricity and so on, these industries in our country is in a high-speed growth period, certainly, there is a big growing demand for storage battery.For years, as the battery industry leading enterprise, D company has always been to focus on communication, electric power, railway, aviation, military, civil and other fields, create the model of expert marketing and green marketing. In recent years, the industry of environmental protection, energy conservation and emissions reduction work become more important, therefore, D company pay special attention to how to improve the quality^ reduce the cost and improve the happiness of customer.Based on the modern quality improvement technology and quality management methods, D company’s production process as the research object, the present situation of quality management is demonstrated and the quality problems in the process of production is analyzed, in combination with Pareto diagram, finally, the main influence on D company’s product quality is the process of grid casting process. Second, by histogram, pareto diagram to find out the main factors influencing the sheeting casting defects-alloy slag then the research subject is determined. After that, building a team to improve the grid quality, carrying out QC activities, analyzing the cause and effect by diagram, histogram statistics related to technology and quality analysis and improvement tools to affect battery grid alloy slag rate, at last production process parameters were optimized, and the main factors" the person, machine, material, method and surrounding" are measured and verified. Finally, the paper summarized the experiences of quality improvement activities, and pointed out the next step in the direction of continuous improvement.The results contribute to the strategy and solution for D company, also play a active part in improving the product quality. More significantly-a specific thinking and method in practice.