Application Research Of VCM Quality Improvement With Six Sigma Method

In recent ten years, an earthshaking variation is happening in consumptionconsciousness. In a research, the quality comes first and the price, which ranks afterdelivery, occupies the last position in the consumer’s three concepts. For this reason,an increasing number of manufacturing enterprise has changed their operationprinciple from low cost to high quality. In many methods of quality control, six sigmais currently the one of the world’s most popular quality improvement methods. Thisthesis focuses on the research of company B solve the problem of hydrogen chloridecontent in vinyl chloride products on the high level with six sigma processimprovement.The thesis first introduced the development of six sigma and the using conditionat home and abroad. Then, it expounded the specific process of the process with anactual case of company B to improve the vinyl chloride product quality. With thecompany’s senior leadership support, the project team analyzed why high hydrogenchloride content in vinyl chloride products became higher with the DMIAC method.At the same time, the key factors which analyzed in the last step were improved. Also,the improvements were tracked and maintained. Finally, the project team summarizedthe status and problem met in the project and prospected the future development trendof six sigma.Company B achieved three advantages through this six sigma project. Firstly, theproject improved the quality of the vinyl chloride, avoided the occurrence of theeffects and improved the satisfaction of the customer. Secondly, it canceled reworkprocess and reduced the manufacturing cost. Lastly, through the project execution, themanagement ability of the engineers was improved. Also, talents could be reserved forthe company. These were the reason why the six sigma management could be fashionin the world.