Estudio del cromado metálico en superficies de aros para buses bajo normas INEN y su incidencia en la adherencia superficial

Abstract

The main objective of this research is to study the metallic chromium on bushing surfaces under INEN standards, and its incidence on surface adhesion, the research was carried out on experimental modality, varying parameters of the coating process, such as: Time, temperature and voltage, to determine the properties of adhesion, hardness and layer thickness, the optimal parameter for a nickel + chromium process was obtained at 60 min. 400C and 7V. From the results obtained from the corrosion resistance experiments it was determined that it is low and for this reason the proposal is put forward to add an alkaline copper layer and in this way to have a coating of three layers, copper + nickel + Chromium, after finishing the respective experiments its improvement of this property and the adhesion of the layer were observed. After that, the cost of the analysis to implement this coating was determined that it is accessible for the consumption of transport companies.