Electro - Polishing Services
Khodal has in-house electro-polishing facilities for electropolishing stainless steel pipes, tubes, piping components (like bends, tees, elbows, pipe holders), valves, storage tanks, agitators, mixers and other stainless steel components and fabrications.
ELECTROPOLISHING is an electrochemical process for providing surface integrity beyond available conventional mechanical finishes. Surface imperfections are removed from stainless steel surfaces by anodic dissolution in an electrotype solution with an imposed electrical current. This process is considered the reverse of electro-plating where metal from the anodes is deposited on to the metal surface. During the electro-polishing process, electrical charges are drawn from the high points on metal surfaces, removing burrs, sharp edges, and other imperfections present on the stainless steel surface. The metal atoms are stripped away quickly resulting in the leveling effect on the metal surface. The high points are reduced first and microscopic nicks are removed last, along with any modified metal surface structure from the mechanical polishing process, resulting in improved surface measurements. Electropolishing provides a continuous, tenacious, chromium rich oxide layer on the surface resulting in an excellent passive fitting enhancing corrosion resistance. It exposes and removes impurities within the surface layer and provides a flatter surface. This results in reduced built-up of products on the surface, reduced bacteria growth and improved decontamination behaviour. Finally it provides a lustrous aesthetically pleasing appearance.