Hull Cathodic Protection MMO Titanium Anodes

Cathodic protection technology has been applied in various industrial fields. In the process of repairing and building ships, cathodic protection needs to be implemented when the ship is sailing and loading. From the protection point of view, the hull, liquid tank and cooling system all adopt cathodic protection technology. After the cathodic protection is implemented on the ship, a good protection effect has been obtained. The protection degree of the hull can reach more than 90%, and the protection degree of the ballast tank can reach 50%-70% when the level of protection is reasonable.

 

The hull can be protected by sacrificial anode cathodic protection or impressed current cathodic protection, and the liquid tank of the ship should be protected by sacrificial anode cathodic protection.

 

The hull external current cathodic protection is to achieve the purpose of anti-corrosion by controlling the hull potential or current density to polarize the hull cathodic protection. It is mainly composed of a potentiostat, auxiliary anode, anode shielding layer, reference electrode, shaft grounding and rudder grounding device composition.

 

MMO-coated titanium anode uses titanium metal as the substrate, and the surface is coated with highly catalytically active platinum group metal oxides. It has good electrical conductivity and small surface output resistance, and it is not eroded by the medium itself. And easy processing and other advantages. It can be adapted to different environments, such as seawater, freshwater and other media.

 

JM-TITANIUM is committed to the production of titanium anodes for hull external impressed current cathodic protection, which can be customized according to customer drawings

Substrate	Anode coating type	Galvanic Plating	service life	Application
GR1 Titanium disc, titanium oval cake, etc.	Ruthenium iridium, iridium tantalum, platinized Platinum iridium and other mixed oxides	Fresh water≤100A/㎡ Light salt water≤100-300A/㎡ Seawater≤600A/㎡	20—50Y	Seawater, light salt water, fresh water, seawater reinforced concrete buildings, etc.

Product classification of titanium anodes

 

Ruthenium iridium titanium anode: ruthenium iridium titanium plate, ruthenium iridium titanium mesh, ruthenium iridium titanium tube, ruthenium iridium titanium rod, ruthenium plating on titanium plate, ruthenium plating on titanium mesh

Iridium tantalum titanium anode: iridium tantalum titanium plate, iridium tantalum titanium mesh, iridium tantalum titanium tube, iridium tantalum titanium rod, iridium plated titanium plate, iridium plated titanium plate, iridium plated titanium plate, iridium plated titanium mesh

Platinum-titanium electrode: Platinum-coated titanium mesh, platinum-coated titanium plate, platinum-coated titanium tube, platinum-coated titanium rod

Impressed current cathodic protection system for ships
1) The number of impressed current cathodic protection systems installed is small, and the resistance to water flow can be ignored;
2) The service life of the impressed current system is long, even as long as the life of the ship, while the service life of the sacrificial anode is generally only 1-2 years, and must be replaced after consumption;
3) The impressed current cathodic protection system can automatically adjust the output of protection current according to the change of working conditions, so that the hull is always within a good protection potential range.

In ship cathodic protection, there are sacrificial anodes and impressed current cathodic protection. In impressed current cathodic protection, commonly used auxiliary anodes include graphite, lead-silver alloy, high-silicon cast iron, platinum-plated titanium, niobium-platinum and mixed metal oxides ( mmo) anode, etc.
Baoji JM-TITANIUM company specializes in the production of MMO titanium anode electrode discs for ship cathodic protection. Welcome to contact us anytime.

 

 

 

 

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