Definition and evaluation of good manufacturing practices for plastic injection molding

Abstract In this work, the impact of good manufacturing practices (GMP) on specific energy consumption (SEC) plastic injection molding process, in 9 representative companies Colombia, was studied. The GMP applied to process and degree which they are adopted by were defined. Afterwards, SEC 17 processes those evaluated. Finally, applying their effect application analyzed ranges from 35 72%. A single value could not be established for all systems, because it depends injected weight productivity each mold-machine-material combination. Nevertheless, a characteristic curve defined different systems. relationship between found. It observed that contributed improve SEC, with significance, ranging relevance 6 14%. concluded, taking consideration company, “Plasticizing” “Drive Units” most relevant categories SEC.