Reducera variationer inom kemisk processindustri : Utfört på Nouryon Site Stockvik

Sammanfattning: Nouryon, formerly Akzo Nobel, is a world-leading manufacturer of particles. Already in the 70s, one part of Nouryon was founded in Stockvik where to this day still produce particles of the highest class. When the production of particles is classified under the chemical process industry, the manufacturing process consists of a number of raw materials mixed and reacting with each other in different vessels. Many of the chemicals used are harmful to human health and therefore Nouryon is constantly working to increase safety while at the same time a great focus is on streamlining the manufacturing process. The purpose of the work is to reduce the variation in the manufacturing process by analyzing a particular product family, working with tools based on statistics and historical data, and automatic inspection systems with the basis in camera technology. By reducing the variation, the proportion of First Time Right will increase, which in turn results in reduced costs that arise due to rework. It would also facilitate production planning, reduce downtime for subsequent processes and generally result in a generally more reliable process. By raising the root causes of the variation and addressing these with the help of tools that simplify the daily work, control of the process can be taken and the needs of the customers be ensured. To create an understanding of the chemical process, a current study of how different manufacturing steps were carried out. In addition to this, it was also investigated how the company is currently working on raising problems to the surface and in order to be able to determine how the work with the statistical tools and the inspection system could be fullfilled in the current conditions. The work resulted in a large amount of data that was the basis for a multivariate analysis, a number of proposals for future work and also two separate reports discusses with statistical process control and inspection systems with camera technology. Unfortunately, no quantitative results can be presented in the work because all results are based on actions taken in the longer term.