DMAIC Promblem-Solving Method Used In Plastic Spray Painting Process

The Six Sigma management was first created by MOTOROLA in the mid-1980s, which is mainly used to improve product quality and higher customer satisfaction. With the GE great successful implementation of Six Sigma methods to improve the effectiveness, all countries in the world famous companies are rallied together to follow it. In view of this topic on the way to improve the quality of the domestic manufacturing industry product quality and competitiveness of the benefit increase, this thesis takes a domestic mobile phone of a plastic manufacturing company of Six Sigma quality improvement as an example to do DMAIC problem solving model (define,measure,analysis,improve,control) [4] , to improve the spray painting accept rate. From the definition of the current status, project objectives, set up an interdepartmental project team, the use of quality tools such as: flow chart, cause and effect chart, Pareto and potential failure modes to analysis of the painting process and shortcomings further measurement, then use the design of experimental (DOE) improve method: orthogonal transformation design, F value comparison, and Minitab software using for detail Residuals and ANOVA analysis, get the best final Process key input variables: air flow and humidity, thus the entire plastic products painted with the establishment in the process on the basis of statistical techniques, significantly increased the rate of qualified products Painting, to customer accept rate greater than 90% of the requests. The section also makes products with links in the strictly controlled conditions, stable and efficient output to meet the needs of customers, to high-volume production and sales.Through examples of Six Sigma DMAIC process for domestic enterprises provides a template model, I intend to import and supply the implementation of Six Sigma to improve the management of domestic enterprises as a reference.