Cathodic protection is an important technical means to prevent metal corrosion, including sacrificial anode protection and impressed current method. According to impressed current method, the cathode current is applied to the protected metal parts by the external DC power supply, so that the cathodic polarization is triggered to reduce or even completely inhibit the metal corrosion. The auxiliary anode is used to provide a circuit for the current..Because of the reaction of oxygen evolution or chlorine evolution on anode terminal, the corrosion resistance and stability of the auxiliary anode will play an important role in the operation of the whole cathodic protection system.
Applications
·Protection for storage tank of water heater
·External protection for hull, pipelines, platforms and other marine facilities,
wharves, dams and cold water system inlets in power plants
·Internal protection for oil tank, condenser, pipeline and heat exchanger
·Embedded structure (applied to carbon bearing soil)
Products and services
·KERAMOX®proprietary cathodic protection coating
·Customized coating design according to different application conditions and requirements
·Processing and coating of various types of Ti substrate
·Set of electrode rod with components of water heater
·Anode life expectancy evaluation(ALT)
| Main application areas | Anodes and coatings | Details |
| Cathodic Protection | KERAMOX® Titanium anode Platinised Titanium Anodes based on Niobium or Tantalum | All round applicable At high current densities, for example in sea water High voltages or strongly corrosive electrolytes |
| Seawater electrolysis | KERAMOX® Titanium anode Titanium with a Ruthenium Mixed Metal Oxide coating Titanium with a Platinum-Iridium Oxide coating | Depending on amongst others temperature and salinity |
| Electroplating | Titanium with an Iridium Mixed Metal Oxide coating Platinised Titanium | In highly acidic environments such as: Electro galvanising (zinc plating) Anodising of Aluminium Chromium, Nickel,Tin, etc. plating Precious metal plating Reverse pulse Copper plating Hard Chromium plating Precious metal plating |
| Water treatment | Platinised Titanium Titanium with an Iridium Mixed Metal Oxide coating Boron-Doped-Diamond anodes | Electro dialysis with polarity reversal Recovery of metals Oxidation and break-down of organic contaminations Higher overpotentials,amongst others for disinfection |
| Hypo chlorite & Disinfection | Titanium with a Ruthenium Mixed Metal Oxide coating Titanium with an Iridium Mixed Metal Oxide coating Titanium with a Platinum-Iridium Oxide coating | Depending on salinity, polarity reversal and current density |
| Synthesis reactions | Platinised Titanium Titanium with an Iridium Mixed Metal Oxide coating Boron-Doped-Diamond anodes | Depending on the particular reaction At higher overpotentials |
| Hydrogen production | Nickel electrodes with a precious metal coating | Coating process by means of exchange plating The purpose is to decrease the overpotentials |
