Comparison Of The Surface And Physical Effects Of Chromate And Chromium-Free Processes On Different Color Powder Coatings On Electrostatic Powder Coated 6063 Alloy Aluminum Profiles

In this study, the effects of chromated and chrome-free pretreatment tests on the painted profiles of aluminum alloys used in many different fields were compared on different paints. The comparison process and results of chemical, mechanical and dimensional tests applied to painted profiles are discussed. The parameters are considered as paint voltage value 100 V, oven temperature 190 °C and conveyor speed 1.3 m/1. Paint colors were determined as RAL 7016, 9005 and 9016 and were completed with different works only on the front surface treatment. As a result of the experiments, the highest paint thickness value was found to be 106 µ and the highest gloss value was 81.7 GU. The paint drying process for all processes was determined as a 190 °C for 80 minutes. In the discussion section, powder coating processes and experiments are described and compared.