Hard Chromium Plating: Technological Challenges, Engineering Approaches, Automation and Innovative Solutions for Optimized Industrial Processes

Abstract This paper analyzes the evolution of chromium plating installations, from empirical and traditional methods to modern continuous systems, emphasizing the technological, economic, and ecological differences. Hard chromium plating, an essential electrochemical process for enhancing wear and corrosion resistance, has faced major limitations in its conventional form: high energy consumption, non-uniform deposits, and significant risks to the environment and workers’ health. Modernization through the implementation of continuous plating systems, based on horizontal bar movement and strict control of electrochemical parameters, has brought substantial advantages: reduced electrolyte volumes, improved deposit quality, optimized energy consumption, and minimized environmental impact. Romania, as a European leader in chromed bar production, directly benefits from these advancements, consolidating its industrial competitiveness and strategic position on the international market.