Optimizing the Coating Weight in Iran Khodro Paint Shop

Coating weight is a physical property that provides a resistance for corrosion and has direct effect on paint adherence on the bodies. The ability to successfully perform coating weight amount between target values is highly dependent to experts’ skill. In spite of all parameters such as temperature and point of all zones are in their target value, the size of crystal doesn’t harmonize sometimes. Furthermore it causes an introduction to penetrate corrosion in automotive production and the number of customers claim will be increased. So temperature of phosphate, sheet of body, tensile oil and the way of charging the activation were surveyed carefully. Furthermore on cleaning process more was focused. With each modified samples were prepared to check coating weight and Size of crystal. During the research according the action plan the tests were done and all present results were gathered and analyzed their trends. Finally it’s find that with affecting in times and amount of charging the material the result will be better than before unexpectedly. One objective is to use comparisons between expert and novice personnel to identify the critical skill components necessary in world competition in automotive industry. The obtainable of this research is what causes would be interfered on increasing or decreasing in coating weight in our paint shop? In the future an advance experiment in dip technology will be used in the other pretreatment line which has the same problem. This paper will help them which factors need to be more under controlled.

Keywords:

Coating weight , Size of crystal , Cleaning process , Phosphate bath , temperature , Dip system